Being a old person I have many carbs but no computer experience, Plus I still like being different, so thanks for the info. It will definitely help on my 2.3L turbo pinto.
John I am 65yo,been a hot rodder/drag racer all my life.Been a long time since I made a pass,but I'm just as eat up with it as ever. I've been a subscriber since John Doc introduced you on his channel several months ago. You are an excellent teacher.Keep doing what you.
Thank you for this video Ive been wanting to do this for the longest but I just lost my motor mentour in january and its really took a toll but at the same time it lit a fire under my ass! We took my block apart roughly two years ago and ive been slowly aquiring my parts to build my budget boosted fox but then he passed so ive been reading and looking for guidence to finish what we started years ago i have that ive lost someone that i still had much to learn from but appreciate all of you guys spreading this knowledge are to all of us wanting to learn
Just finished up my blow thru 331 coupe. I used a Barry Grant bt and so far with a wideband tuning has been fairly easy. Love the content John keep it up sir!!
Thanks so much John. You are a god among men for explaining this. I already have so many parts for a blow through that I have to go that route as opposed to efi. Guess I'm getting a wide band and learning how to read plugs better.
Man, this stuff is gold to someone running Carbs, i pulled my hair learning some of this stuff, one of the problems that got me was the stupid o rings on the needles were leaking and allowing fuel to flow past when the bowls were full.
6:50 Instead of messing around drilling, tapping, soldering, drilling, resoldering, redrilling, making air bleeds and jets out of brass set-screws, and all that jazz, it's just WAY easier to go out and buy yourself a pair of fully adjustable Billet metering blocks. They aren't that expensive today, and they save a WHOLE lot of frustration, and screwing around, versus trying to modify old ones with no provisions for adjustability.
The way it works in my mind with all this is, you need to accommodate for boost in the intake because the carb, so long as it's able to supply the fuel, will supply it. In order to maintain fuel, you need to get a solid float that won't collapse upon itself once the bowls are pressurized as well as enough fuel pressure (Which could be accommodated with a higher pressure fuel pump and rising rate fuel pressure regulator as boost rises). The increased fuel pressure will counteract whatever boost pressure you're running so long as the pressure of the fuel in the lines going to the bowls exceed the boost pressure acting upon the bowls from the turbo's intake tract. This is a rough estimate, but I've only been looking into it for 15 minutes when considering the G54b in my Pick-up truck. Thinking of converting some of my used Starion parts I won't be re-using on it in the pickup truck. I don't think I'd wanna use the 16g on it though, or at least keeping it dialed back, as the 16g would be efficient passed 15psi and that's just overkill for a small 4x4 pickup truck, as I'm just looking for a slight boost in torque and turbo'd the engine made just under 200hp with roughly 220ft.lbs at only 2500rpms on a pretty inefficient TBI setup.
Throwback for sure. I ain’t heard the name Brent in many years he was always trying new stuff. Tyson was flying back then with the silver mustang. Also Lutz when he was blow thru. And that Billy with the stock bottom end 302 twin turbo maroon coupe from Texas. We had a nice grudge car here I built stock bottom end 302, mp70, non intercooled and one of Kevin’s 750’s mid 9’s all day hanging the front wheels made us some money. Fuel system was key and that 13202 regulator with the -10 return
I see where u are going with the emulsion epoxy but wouldn’t a 10/32 set screw in the high speed bleeds do the same thing waaaaay easier and still be adjustable in the future? Awesome video keep ‘em coming
Great vid! I remember turbomustangs back in the day. I based my first turbo combo off a member named doodoobrown. I used a Holset HT60! Lol! Great vid John!
I used bowlaws carbs for years since early 90s worked for them in early 2000s there a jem hidden in the middle of downtown Orlando florida I learned how to tune by bowlaws . Yes they have the best carburetors on the market if u ask me and price is great you get a true flowing # with them .
cool stuff the info should be helpful. Im working on a little blow through project with my 350 vortec engine and a used 650dp carb only looking to run like 10psi boost with twin ebay gt35's should be fun though.
I really like blow through setups. I have a bad ass all black all billet IRD and APD dual needle and seat blow through e85/meth carbs. The APD is on my son's 540 f1x-12 making 1500 ft tq 2200 rwhp and my the IRD is on my 540 f3-136 and both setups are as responsive as efi. I had efi on my setup and took it off and put it on the shelf and order that carb and went back.
Sergeant, Roger! Moving, Sergeant! I will be using with the Holley Terminator X EFI instead of a Dominator flow through carb. I just don't care to do all that work, and then still have to tune it as well. Especially since mine is a 468 cid with twin 88's...no. Let the computer do it. However, I am also using F.A.S.T. on another engine due to it's laptop interface which I think is very cool in regards to dialing in exactly what is happening in that engine. Great video Brother I learned new stuff!
Pretty great video, dude. Only problem I'm faced with when it comes to doing this is I'm converting an EFI Hyundai V6 to Carbureted. I'm gonna have to spend some money on a custom manifold and figure out a stand-alone ignition since there's no slot for a HEI distributor. 😅 Motor and Trans of choice on my project truck is a Hyundai 2.7L with an adapted Torqueflite 727.
You put this video out at the right time! But your right with fi tech , Holley, setups costing a tad more efi is the way to go unless you build your own carb. I’m fighting should I turbo my 383 sbc and get a fi tech, Holley sniper and learn to tune while I build my big hp ls3 Holley efi setup like you got. Or should I do blow thru on my 383sbc and enjoy my car while I build my ls3 and learn just the turbo side of doing things! Want to into the turbo game but not sure how I should start. The 383 is a a good running setup as is , it’s stupid fast for the parts in it!
those types of decisions are hard to make, all probably have some advantages and disadvantages. I always hate making a big decision like that, cause they are all significantly different. If the ultimate goal is to do the ls3 with holley, I would jump right in most likely though.
Turbo John true I will just enjoy the 383 na in the 69 Camaro this season and put all my money on the end game! Hope to see you at the track this season at piedmont drag way!
On lower boost 8lbs I have a quick fuel blow thru. ( Birthday gift from kids ) Will a regular style high flow power valve work , came with a 4.5 in front and rear blocked I have a set so from 2.5 to 8.5 .
Awesome Video, was waiting for this one. Planning on a Single Turbo Blow Thru on my BBF When you were talking about the Longer Vent Tubes, you were comparing them to the Pitot/Static Systems on Aircraft. Actually i know exactly what you mean, i work on Sikorsky Blackhawk Military Helicopters. Awesome Video, my buddy ran a CSU Carb years ago on his F-2 Pro Charged 81 Malibu, he was Always on the Turbo Mustang Website, said it was pretty much the Only Blow Thru Forum out there. Very informative, i have a few metering blocks laying around in the garage, gonna practice on drilling them out. Was wondering if you can do a Video on how to determine the Best Size Turbo for your Engine. I have a 521 Stroked 460 BBF in my 86 Mustang. Currently N/A through a 1000 cfm 4150 from Patrick at Pro-Systems. I don't run a specific class, but run 275/60 Drag Radials. Was thinking 98-106 mm Is there a Specific Formula that you do ? Or do you just get let's say a 106mm and basically Tune it with Different Size A/R of the Exhaust Housing ? Any Advice is Greatly Appreciated.
Good luck, rpm is gonna be your big issue with a single turbo. The compressor wheel is important, but you will for sure need a large frame G-trim wheel for that many ci. I would get a 106 or 118. The G trim normally comes with a 1.32 or 1.50 housing, you will have to play with them. I ran a 1.50 on my 421 and it was good. I have a 2.0 for a g-trim wheel if you needed one that big. I would call Jose at Forced Inductions and see what he recommends.
@@TurboJohnRacing Hey John thanks for the Reply and info. Was definitely thinking which would suit me better, the 1.32 or 1.50 A/R. Didn't think about 2.00 A/R I'm up in the North East and we don't have many 1/8 Mile Tracks, just 1/4 Mile. I've seen some Exhaust Housing 1.00 and around 1.15 i believe. I know the Smaller A/R would help down low, and 1/8 Mile. Since i Only run 1/4 Mile, probably gonna need Atleast 1.32 - 1.50, Gonna look into 2.00 A/R like you said. Jose at Forced Inductions Name has come up alot, lot's of people highly recommend him for Turbo options, I'm definitely gonna contact him about my Turbo recommendations. I know you said with a Large Single rpm can be an issue. I'm turning 7000-7100 rpm right now with my N/A 521 BBF Combo. Thanks Again for the info. I really like Garrett Turbos, would love a GTX5533R if i go with a 98mm or a GTX5544R which comes 102 or 106mm. Would love one of them with there Ball Bearing Design, they get a little pricey for my Budget tho. But will definitely get in touch with Jose. Actually running a Modified Garrett on my 6.0 Powerstroke Truck (Tow Vehicle and Toy) from KC Turbos, and i Love it. Greatly Appreciate all the Advice you helping me out with. One question for you, what was the reason why you went with LS Power in your Mustang ? Are you Chevy guy ? I was Born and Raised in a FORD Family, pretty sure i was conceived in a 1965 Mustang Fast Back. Had my 1986 Mustang since 1994, had original 5.0 when i bought it, then built a 1969 351 Windsor, then a 1972 351 Cleveland, now a Stroked 460. Just wondering why No FORD in yours ? Thanks again Buddy.
Great video, but Ima just buy a blow through carb if I ever get around to running a turbo. Might not be what you want to hear but yeah. I'm sure if someone was to spend enough time on this like you did it would probably be better to build one, but it seems like a whole lot of stuff to learn and to test and tune and really learn how to do it. Either way thanks for posting this because I gained something from this video. someday I may try to build one, I still have too much to learn about turbos and tyring to do do this would overwhelm me. hopefully the ones you can buy already done will work good.im sure they would do ok to good.
I'm similar, I can learn and build just about anything I want, for real. It's just choosing what I really want to spend my brain power and time and focus on learning and if I'm already in process of another brain powered hobby then something as either #1.) Awesome as fuck ! Or #B.) Half finished joke on the shelf over there important as a blow through carb to home made DIY I made that shit myself turbo sbc would overwhelm me too. This confusing comment is almost making my anxiety worse! .
Running a Quick Fuel blow thru on my junk with a best of 6.28@121 with 15psi and 150 shot, hoping with adding EFI it will be more reliable and can keep the stock long block together for a few more years
Instead of just drilling the Main well to a straight drill hole, use a #3 tapered ream from McMaster. It keeps the velocity up. Also if ur installing only a few boosters u can hold it in with just a screwdriver tapped in between the bore and the banjo
Hey that's good s*** there.... Obviously the boost pressure & flow direction has an effect on the bowl vent thats brilliant they're my friend... I would imagine you could probably tap metering Jets in there also as another form of adjustment.......thank you John from PHX AZ
Thanks TJ. they keep playing ridiculous mike Bloomberg commercials all the time on your channel. Ain’t nobody got any time for that commie mike. Keep up the great work on your channel. It’s awesome. 👌👍🇺🇸
LOL, it is amazing how the ads are tailored to each individual person. It actually is kind of scary, that me and you can watch the same vid, and get customized individual commercials based on what google has tracked us watching!
@@TurboJohnRacing Well I have no idea why they would think I'd want to see anything about bloomberg. But keep up the awesome vids. And thanks for the info on the blow-thru carb. I might try to do one this summer.
Good info. I had thought about doing this at one time but with the Terminator X so cheap now it'd be hard to do it cheaper and have the adjustability and room to grow. Dual needle valve carbs are expensive.
I just picked up a Terminator X Stealth 4500. I haven't installed it yet, but I have played around with the software, and it looks like it has a shit ton of tuning options and is pretty advanced.
Hey man. Where did you put your boost gage? I’ve got mine Teed into the BOV line from a 1/8’ NPT hole in my carb spacer. I can’t get the AEM boost controller to read boost over 1 pound.
EFI does not solve a lot of problems. Though I do not use boost. Proven though that a good set up carb will make more power than any electronic carb [throttle body] and also 8 nozzles in the intake. With a simple throttle body. Multi stack should be better though often no better, though generally more drivable. But that costs about carburettors! I agree with wide band though.
I haven't heard turbomustangs in forever. I've been a member since like 2002 or something. I remember when blownshovel was doin those how-tos of this way back. I always remember Brent's mustang. What was your name on there. Pitot tubes
I had a quick fuel bt then had c&s build one for my 400sbc 94mm picked up 4 tenths..still slow but i havent touched carb in 2 season mid 5sec 1/8.. Stock shortblock 400 pro topline 235s big roller 15psi..lol time 💣 with a diaper
Cost may not be far off from EFI, but EFI doesn't make me happy like a big ol' four barrel does. Never mind the fact that I tend to work on vehicles that don't have plug-n-play ECU options, nor do the factory ECUs like custom tuning. Say, for example, I wanna boost a 300 I6 in an F-150. The ECU hates that, and nobody makes one that'll plug in and let me tune it. Moates went under, so no more piggyback solution there. Aussiespeed intake + four barrel it is 🤷♂️
Great info. I’m currently collecting pieces to do a single turbo 355 and am trying to decide which way to go blow through or efi with budget being the main concern
Make sure to add prices up thoroughly. Holley EFI with coil near plug is not a ton more than blow through now once you price (carb, wideband, data logger, ignition).
@@TurboJohnRacing yes that’s what I’m seeing and as I want to use the car for drive and race style events and some local track nights the ability to download a “tune” from a lap top is starting to be more appealing. It is the little stuff that adds up.
I was wondering if I could build a 850 cfm blow through carb to run on methanol, would that be too big? I know you said 650 or 750 will work but do you know if a 850 would work better or worse? Thanks
John what's your opinion on being able to do this conversion and make it e85 can you do it with the down leg boosters just up the Jets and drill the main Wheels
What about fuel pressure? I assume it would have to raise with boost pressure wouldn’t it? Trying to learn all this stuff is a little overwhelming lol.
Yes, must have a rising rate fuel pressure regulator. Do not hook the boost reference line below the carb, always above the carb in the bonnet or off the turbo.
i was always taught the fuel flows through the main jets by gravity. the level of fuel in the emulsifier tube is always lower than the level in the fuel bowl. flow through the venturi booster causes negative air pressure in the emulsifier tube but imo it is not enough to pull fuel through the main jets.
You could be right. The fuel level in the bowl determines the level of fuel in the emulsion cavity like you said. I would think it would be the same height. Just like when the fuel is too high in the bowl it will flow out the booster and vent tube possibly. Wonder how much the Venturi actually sucks? If the fuel level was really low in the bowl hypothetically, just above the jet. Would it still pull fuel through the booster!
@@TurboJohnRacing the reason i say the fuel is lower in the emulsifier tube is because that's where the raw fuel starts to become aerated into a vapor. there is likely some suction from the v-booster on the main jet but since it is a restriction it's very little, imo. the vacuum in the e-tube is going to assist the gravity flow, tho.
Whats your opinion for a electric fuel pump and methanol fuel. I have a aeromotive a1000 pump and just picked up a c&s dual needle seat carb for methanol...do you have to run a mechanical pump at 20psi boost range
Hey would a blowthru turbo carb work on a nitrous motor? If I was to take the blowthru set up from my turbo car and put it onto my nitrous would it work ?
Wow time machine, pretty sure we talked 05-07 on TM/TF because I remember extended bowl vents becoming all the rage in a weekend. I also remember fighting them into my EV hat. Remember the Search function Nazis lol
New to this, hopefully you get a chance for my questions: Is a boost referenced fuel pressure regulator mandatory? Trying to avoid return lines. Im running a stockish sbc350..shooting for 8-10psi. Thanks much
Sorry if this sounds like a dump question. But if you have a boost refence fuel pressure regulator, is it necessary to rebuild the carb to be a blown throug carb?
Hey great video attempting to make a new carburetor but I want to use a small Turbo from a car for the push on the top run off the belt or run ou motor tomorrow cuz I see anything in that regard that could help thank you
Hi, John, this is John. Lol. I have a GM inline 6 one want to do a blow through carb and turbo. It's going to have 275-300 hp. 600cfm Holley. Should I do a blow through or should I do a draw throw? It probably weather I want the turbo before or after carb.
I'm not sure if this was gone over, sorry if it was and I missed it but do you size the carb to the engine then just build a blow through or can you run a lower cfm carb if your building a blow through?
Usually, the smaller the cfm the larger the booster is in relation to the venturi. The more air that goes through the booster, generally the more pull it has on the fuel. I always had best luck with 650/750 cfm carbs with annular boosters installed.
Good morning, may the algorithm Gods forever bless you.
Dad was an old school carb guy. We won a lot of races in the 90s circle track and sand drags because we out tuned people.
yes, the hours tweaking usually get farther than the hours buying new parts!
Being a old person I have many carbs but no computer experience, Plus I still like being different, so thanks for the info. It will definitely help on my 2.3L turbo pinto.
good luck, I ran them for years.
John I am 65yo,been a hot rodder/drag racer all my life.Been a long time since I made a pass,but I'm just as eat up with it as ever. I've been a subscriber since John Doc introduced you on his channel several months ago. You are an excellent teacher.Keep doing what you.
Thanks, I like to share information. Glad some people find it useful. I hope I never lose the bug!
👍👍👍👍👍
Thank you for this video Ive been wanting to do this for the longest but I just lost my motor mentour in january and its really took a toll but at the same time it lit a fire under my ass!
We took my block apart roughly two years ago and ive been slowly aquiring my parts to build my budget boosted fox but then he passed so ive been reading and looking for guidence to finish what we started years ago i have that ive lost someone that i still had much to learn from but appreciate all of you guys spreading this knowledge are to all of us wanting to learn
Just finished up my blow thru 331 coupe. I used a Barry Grant bt and so far with a wideband tuning has been fairly easy. Love the content John keep it up sir!!
Good deal, good luck with the car.
Great down to earth intro to BLOW THRU 101.
Hey John, how about a video showing how you converted to coil near plug and set it up on your car?
Thanks so much John. You are a god among men for explaining this. I already have so many parts for a blow through that I have to go that route as opposed to efi. Guess I'm getting a wide band and learning how to read plugs better.
Man, this stuff is gold to someone running Carbs, i pulled my hair learning some of this stuff, one of the problems that got me was the stupid o rings on the needles were leaking and allowing fuel to flow past when the bowls were full.
They always dry up on a old carb that has not been used fo a while. I put grease on them whenever I put them in, seeme to help.
I don’t get on TH-cam much. Glad I saw this one.
6:50 Instead of messing around drilling, tapping, soldering, drilling, resoldering, redrilling, making air bleeds and jets out of brass set-screws, and all that jazz, it's just WAY easier to go out and buy yourself a pair of fully adjustable Billet metering blocks. They aren't that expensive today, and they save a WHOLE lot of frustration, and screwing around, versus trying to modify old ones with no provisions for adjustability.
Thank you John! And thank you for the flag and to soldier on the wall behind you.
Thanks
The way it works in my mind with all this is, you need to accommodate for boost in the intake because the carb, so long as it's able to supply the fuel, will supply it. In order to maintain fuel, you need to get a solid float that won't collapse upon itself once the bowls are pressurized as well as enough fuel pressure (Which could be accommodated with a higher pressure fuel pump and rising rate fuel pressure regulator as boost rises). The increased fuel pressure will counteract whatever boost pressure you're running so long as the pressure of the fuel in the lines going to the bowls exceed the boost pressure acting upon the bowls from the turbo's intake tract. This is a rough estimate, but I've only been looking into it for 15 minutes when considering the G54b in my Pick-up truck. Thinking of converting some of my used Starion parts I won't be re-using on it in the pickup truck. I don't think I'd wanna use the 16g on it though, or at least keeping it dialed back, as the 16g would be efficient passed 15psi and that's just overkill for a small 4x4 pickup truck, as I'm just looking for a slight boost in torque and turbo'd the engine made just under 200hp with roughly 220ft.lbs at only 2500rpms on a pretty inefficient TBI setup.
Thanks for this great informative video on blo thru carbs John !
Throwback for sure. I ain’t heard the name Brent in many years he was always trying new stuff. Tyson was flying back then with the silver mustang. Also Lutz when he was blow thru. And that Billy with the stock bottom end 302 twin turbo maroon coupe from Texas. We had a nice grudge car here I built stock bottom end 302, mp70, non intercooled and one of Kevin’s 750’s mid 9’s all day hanging the front wheels made us some money. Fuel system was key and that 13202 regulator with the -10 return
I see where u are going with the emulsion epoxy but wouldn’t a 10/32 set screw in the high speed bleeds do the same thing waaaaay easier and still be adjustable in the future?
Awesome video keep ‘em coming
Great video. Carbs still get it done.
Great vid! I remember turbomustangs back in the day. I based my first turbo combo off a member named doodoobrown. I used a Holset HT60! Lol! Great vid John!
Ira, he has a youtube channel as well. Boostdoctor. No has a EFI big rim car, and the yota is coming back soon.
That is awesome I will check it out!
I used bowlaws carbs for years since early 90s worked for them in early 2000s there a jem hidden in the middle of downtown Orlando florida I learned how to tune by bowlaws . Yes they have the best carburetors on the market if u ask me and price is great you get a true flowing # with them .
cool stuff the info should be helpful. Im working on a little blow through project with my 350 vortec engine and a used 650dp carb only looking to run like 10psi boost with twin ebay gt35's should be fun though.
You ever get that setup going and running???
My brains on fire🤯 slot of info to digest!
Great content. Well said about Blow thru carbs. They work but they add up as you get faster.
Thanks
Mine is the hanger18 mod
And was basically a copy cat of my buddy’s and it’s a single needle seat on gas and works pretty decent 👍🏻
Hanger 18 works and it's easy
Nisan Catron yes sir my buddy’s car runs very well 👍🏻👍🏻
GREAT INFO ON THE HOW TO JOHN
Now we need a budget EFI video .👍😂
I really like blow through setups. I have a bad ass all black all billet IRD and APD dual needle and seat blow through e85/meth carbs. The APD is on my son's
540 f1x-12 making 1500 ft tq 2200 rwhp and my the IRD is on my 540 f3-136 and both setups are as responsive as efi. I had efi on my setup and took it off and put it on the shelf and order that carb and went back.
Sergeant, Roger! Moving, Sergeant! I will be using with the Holley Terminator X EFI instead of a Dominator flow through carb. I just don't care to do all that work, and then still have to tune it as well. Especially since mine is a 468 cid with twin 88's...no. Let the computer do it. However, I am also using F.A.S.T. on another engine due to it's laptop interface which I think is very cool in regards to dialing in exactly what is happening in that engine. Great video Brother I learned new stuff!
Very nice informative video on Carbs
Great video. Thoroughly enjoyed it. And your dead on about the efi pricing when you start wanting data collection.
Hey john. Did I ever say your my favorite guy on TH-cam. Cuz your my favorite guy on TH-cam. Lol.
LOL, thanks...hahaha
Good video.Planning to modify a Carter 600 for air-cooled turbo setup.
Pito tubes. For like measure pressure drop to measure indicated air speed? That’s a smart thought.
Yes, that is where they first got the theory of the vent tube extensions. They work great.
Pretty great video, dude. Only problem I'm faced with when it comes to doing this is I'm converting an EFI Hyundai V6 to Carbureted. I'm gonna have to spend some money on a custom manifold and figure out a stand-alone ignition since there's no slot for a HEI distributor. 😅
Motor and Trans of choice on my project truck is a Hyundai 2.7L with an adapted Torqueflite 727.
You put this video out at the right time! But your right with fi tech , Holley, setups costing a tad more efi is the way to go unless you build your own carb. I’m fighting should I turbo my 383 sbc and get a fi tech, Holley sniper and learn to tune while I build my big hp ls3 Holley efi setup like you got. Or should I do blow thru on my 383sbc and enjoy my car while I build my ls3 and learn just the turbo side of doing things! Want to into the turbo game but not sure how I should start. The 383 is a a good running setup as is , it’s stupid fast for the parts in it!
those types of decisions are hard to make, all probably have some advantages and disadvantages. I always hate making a big decision like that, cause they are all significantly different. If the ultimate goal is to do the ls3 with holley, I would jump right in most likely though.
Turbo John true I will just enjoy the 383 na in the 69 Camaro this season and put all my money on the end game! Hope to see you at the track this season at piedmont drag way!
Thanks for sharing. Been down that route with vortech with a carb.
Great video 👍 I'm a roots blower guy and a newbie at this turbo stuff and I don't want 2000 HP
I was wondering if you were ever going mention my buddy Kevin Van Noy at CSU.
Great info Jhon , very cool.
Thanks
Beautiful info TJ Thankyou from Tasmania
CSU carb is what I got 👍👍
THANKS JOHN!
On lower boost 8lbs I have a quick fuel blow thru. ( Birthday gift from kids ) Will a regular style high flow power valve work , came with a 4.5 in front and rear blocked I have a set so from 2.5 to 8.5 .
Awesome Video, was waiting for this one. Planning on a Single Turbo Blow Thru on my BBF When you were talking about the Longer Vent Tubes, you were comparing them to the Pitot/Static Systems on Aircraft. Actually i know exactly what you mean, i work on Sikorsky Blackhawk Military Helicopters. Awesome Video, my buddy ran a CSU Carb years ago on his F-2 Pro Charged 81 Malibu, he was Always on the Turbo Mustang Website, said it was pretty much the Only Blow Thru Forum out there. Very informative, i have a few metering blocks laying around in the garage, gonna practice on drilling them out. Was wondering if you can do a Video on how to determine the Best Size Turbo for your Engine. I have a 521 Stroked 460 BBF in my 86 Mustang. Currently N/A through a 1000 cfm 4150 from Patrick at Pro-Systems. I don't run a specific class, but run 275/60 Drag Radials. Was thinking 98-106 mm Is there a Specific Formula that you do ? Or do you just get let's say a 106mm and basically Tune it with Different Size A/R of the Exhaust Housing ? Any Advice is Greatly Appreciated.
Good luck, rpm is gonna be your big issue with a single turbo. The compressor wheel is important, but you will for sure need a large frame G-trim wheel for that many ci. I would get a 106 or 118. The G trim normally comes with a 1.32 or 1.50 housing, you will have to play with them. I ran a 1.50 on my 421 and it was good. I have a 2.0 for a g-trim wheel if you needed one that big. I would call Jose at Forced Inductions and see what he recommends.
@@TurboJohnRacing Hey John thanks for the Reply and info. Was definitely thinking which would suit me better, the 1.32 or 1.50 A/R. Didn't think about 2.00 A/R I'm up in the North East and we don't have many 1/8 Mile Tracks, just 1/4 Mile. I've seen some Exhaust Housing 1.00 and around 1.15 i believe. I know the Smaller A/R would help down low, and 1/8 Mile. Since i Only run 1/4 Mile, probably gonna need Atleast 1.32 - 1.50, Gonna look into 2.00 A/R like you said. Jose at Forced Inductions Name has come up alot, lot's of people highly recommend him for Turbo options, I'm definitely gonna contact him about my Turbo recommendations. I know you said with a Large Single rpm can be an issue. I'm turning 7000-7100 rpm right now with my N/A 521 BBF Combo. Thanks Again for the info. I really like Garrett Turbos, would love a GTX5533R if i go with a 98mm or a GTX5544R which comes 102 or 106mm. Would love one of them with there Ball Bearing Design, they get a little pricey for my Budget tho. But will definitely get in touch with Jose. Actually running a Modified Garrett on my 6.0 Powerstroke Truck (Tow Vehicle and Toy) from KC Turbos, and i Love it. Greatly Appreciate all the Advice you helping me out with. One question for you, what was the reason why you went with LS Power in your Mustang ? Are you Chevy guy ? I was Born and Raised in a FORD Family, pretty sure i was conceived in a 1965 Mustang Fast Back. Had my 1986 Mustang since 1994, had original 5.0 when i bought it, then built a 1969 351 Windsor, then a 1972 351 Cleveland, now a Stroked 460. Just wondering why No FORD in yours ? Thanks again Buddy.
Dam john really knows about blowing
lol
*Hahahaha*
Great video, but Ima just buy a blow through carb if I ever get around to running a turbo. Might not be what you want to hear but yeah. I'm sure if someone was to spend enough time on this like you did it would probably be better to build one, but it seems like a whole lot of stuff to learn and to test and tune and really learn how to do it. Either way thanks for posting this because I gained something from this video. someday I may try to build one, I still have too much to learn about turbos and tyring to do do this would overwhelm me. hopefully the ones you can buy already done will work good.im sure they would do ok to good.
I'm similar, I can learn and build just about anything I want, for real. It's just choosing what I really want to spend my brain power and time and focus on learning and if I'm already in process of another brain powered hobby then something as either #1.) Awesome as fuck ! Or #B.) Half finished joke on the shelf over there important as a blow through carb to home made DIY I made that shit myself turbo sbc would overwhelm me too. This confusing comment is almost making my anxiety worse! .
Running a Quick Fuel blow thru on my junk with a best of 6.28@121 with 15psi and 150 shot, hoping with adding EFI it will be more reliable and can keep the stock long block together for a few more years
EFI will help keep more control fuel for sure
Instead of just drilling the Main well to a straight drill hole, use a #3 tapered ream from McMaster. It keeps the velocity up. Also if ur installing only a few boosters u can hold it in with just a screwdriver tapped in between the bore and the banjo
Great info t j im thinking about bldg a blow through carb.love your vids bud
Thanks
This is awesome man. Great stuff
Hey where would I hook up my boost gauge line on a carbureted engine? Any help would be great!
Hey that's good s*** there.... Obviously the boost pressure & flow direction has an effect on the bowl vent thats brilliant they're my friend... I would imagine you could probably tap metering Jets in there also as another form of adjustment.......thank you John from PHX AZ
Can this be done with a quadrajet carb???
Thanks bud your the man.
Thank you for this!
Is this good set up for stuff that won't just be wide up throttle? Like something for a mud truck?
Thanks TJ. they keep playing ridiculous mike Bloomberg commercials all the time on your channel. Ain’t nobody got any time for that commie mike. Keep up the great work on your channel. It’s awesome. 👌👍🇺🇸
Yeah that piece of Crap liberal snake, hi-jacked your video.
LOL, it is amazing how the ads are tailored to each individual person. It actually is kind of scary, that me and you can watch the same vid, and get customized individual commercials based on what google has tracked us watching!
@@TurboJohnRacing
Well I have no idea why they would think I'd want to see anything about bloomberg.
But keep up the awesome vids. And thanks for the info on the blow-thru carb. I might try to do one this summer.
I got it too. I've been getting it quite often though.
Good info. I had thought about doing this at one time but with the Terminator X so cheap now it'd be hard to do it cheaper and have the adjustability and room to grow. Dual needle valve carbs are expensive.
I just picked up a Terminator X Stealth 4500. I haven't installed it yet, but I have played around with the software, and it looks like it has a shit ton of tuning options and is pretty advanced.
@@davelowets g/
Hey man. Where did you put your boost gage? I’ve got mine Teed into the BOV line from a 1/8’ NPT hole in my carb spacer. I can’t get the AEM boost controller to read boost over 1 pound.
EFI does not solve a lot of problems.
Though I do not use boost. Proven though that a good set up carb will make more power than any electronic carb [throttle body] and also 8 nozzles in the intake. With a simple throttle body. Multi stack should be better though often no better, though generally more drivable. But that costs about carburettors!
I agree with wide band though.
I haven't heard turbomustangs in forever. I've been a member since like 2002 or something. I remember when blownshovel was doin those how-tos of this way back. I always remember Brent's mustang. What was your name on there. Pitot tubes
Turbotbirds, was a great forum
the emulsion circuit do you epoxy the hole below that run too?
Did you ever have a problem with syphoning the when you blocked the air bleeds?
Thank you sir
I had a quick fuel bt then had c&s build one for my 400sbc 94mm picked up 4 tenths..still slow but i havent touched carb in 2 season mid 5sec 1/8.. Stock shortblock 400 pro topline 235s big roller 15psi..lol time 💣 with a diaper
Nice
Good video
Thank you sir!
Thanks for the videos.
Cost may not be far off from EFI, but EFI doesn't make me happy like a big ol' four barrel does. Never mind the fact that I tend to work on vehicles that don't have plug-n-play ECU options, nor do the factory ECUs like custom tuning.
Say, for example, I wanna boost a 300 I6 in an F-150. The ECU hates that, and nobody makes one that'll plug in and let me tune it. Moates went under, so no more piggyback solution there.
Aussiespeed intake + four barrel it is 🤷♂️
Great info.
I’m currently collecting pieces to do a single turbo 355 and am trying to decide which way to go blow through or efi with budget being the main concern
Make sure to add prices up thoroughly. Holley EFI with coil near plug is not a ton more than blow through now once you price (carb, wideband, data logger, ignition).
@@TurboJohnRacing yes that’s what I’m seeing and as I want to use the car for drive and race style events and some local track nights the ability to download a “tune” from a lap top is starting to be more appealing.
It is the little stuff that adds up.
I was wondering if I could build a 850 cfm blow through carb to run on methanol, would that be too big? I know you said 650 or 750 will work but do you know if a 850 would work better or worse? Thanks
Maybe, but the bigger the cfm the more fuel it requires. Large Venturi require a better booster to pull more fuel
Awesome videos TJ! how fast did you go with your blow through carb before you switch to efi? What carb size did you use?
Went 4.90's and it was a 750 body with annular boosters installed
morning T.J. ur vids r always cool class is in session boys an girls,dont forget an apple fer the profesor
lol
John what's your opinion on being able to do this conversion and make it e85 can you do it with the down leg boosters just up the Jets and drill the main Wheels
What about fuel pressure? I assume it would have to raise with boost pressure wouldn’t it? Trying to learn all this stuff is a little overwhelming lol.
You use a boost reference FPR that will raise pressure at a 1:1 ratio. Aeromotive A2000 is what I use.
Yes, must have a rising rate fuel pressure regulator. Do not hook the boost reference line below the carb, always above the carb in the bonnet or off the turbo.
i was always taught the fuel flows through the main jets by gravity. the level of fuel in the emulsifier tube is always lower than the level in the fuel bowl. flow through the venturi booster causes negative air pressure in the emulsifier tube but imo it is not enough to pull fuel through the main jets.
You could be right. The fuel level in the bowl determines the level of fuel in the emulsion cavity like you said. I would think it would be the same height. Just like when the fuel is too high in the bowl it will flow out the booster and vent tube possibly. Wonder how much the Venturi actually sucks? If the fuel level was really low in the bowl hypothetically, just above the jet. Would it still pull fuel through the booster!
@@TurboJohnRacing the reason i say the fuel is lower in the emulsifier tube is because that's where the raw fuel starts to become aerated into a vapor. there is likely some suction from the v-booster on the main jet but since it is a restriction it's very little, imo. the vacuum in the e-tube is going to assist the gravity flow, tho.
Whats your opinion for a electric fuel pump and methanol fuel. I have a aeromotive a1000 pump and just picked up a c&s dual needle seat carb for methanol...do you have to run a mechanical pump at 20psi boost range
What do you recommend to adjust boost timing?
Hey would a blowthru turbo carb work on a nitrous motor? If I was to take the blowthru set up from my turbo car and put it onto my nitrous would it work ?
Also would It be better to run a carb that opens the secondarys and primarys at the same time? Or do mechanical secondarys work to? Pretty cool 😎
I don’t know, never tried that
Wow time machine, pretty sure we talked 05-07 on TM/TF because I remember extended bowl vents becoming all the rage in a weekend. I also remember fighting them into my EV hat. Remember the Search function Nazis lol
Yes, lol
New to this, hopefully you get a chance for my questions: Is a boost referenced fuel pressure regulator mandatory? Trying to avoid return lines. Im running a stockish sbc350..shooting for 8-10psi.
Thanks much
Yes, it is. The regulator has to be able to raise fuel pressure based on boost pressure.
so the jet extensions are only on rear jets?
Sorry if this sounds like a dump question. But if you have a boost refence fuel pressure regulator, is it necessary to rebuild the carb to be a blown throug carb?
The carb needs the solid floats and the ability to give it more fuel.
What if you have SU carburettors or DCOEs?
Hey great video attempting to make a new carburetor but I want to use a small Turbo from a car for the push on the top run off the belt or run ou motor tomorrow cuz I see anything in that regard that could help thank you
It’s gonna be blower and turbo?
@@TurboJohnRacing found some other info om a pogue carburator. attempting to combine the turbo for the reclaim vaporizor.
Thanks man
What if I mailed you my alcohol carburetor and have you set it up for me sbc Twin turbo on Alcohol.??
Can this be done with a Quadrajet carb
Good info John what would you charge to do a blow through ?
I cannot do any, don't have the booster tools any longer.
@@TurboJohnRacing okay thanks a lot
I used to get on that site a lot.
Mr john where in n.c. are you located
Hi, John, this is John. Lol. I have a GM inline 6 one want to do a blow through carb and turbo. It's going to have 275-300 hp. 600cfm Holley. Should I do a blow through or should I do a draw throw? It probably weather I want the turbo before or after carb.
I have never done draw through. But they seem to work. A lot of factory cars had it.
Can you convert an edlebrock to blow through as well or does it work best with holley’s design?
I’ve never done an edlebrock
I'm not sure if this was gone over, sorry if it was and I missed it but do you size the carb to the engine then just build a blow through or can you run a lower cfm carb if your building a blow through?
Usually, the smaller the cfm the larger the booster is in relation to the venturi. The more air that goes through the booster, generally the more pull it has on the fuel. I always had best luck with 650/750 cfm carbs with annular boosters installed.
@@TurboJohnRacing oh okay right on!! Thank for the knowledge!
You did not mention the power valve block off’s, do you run those or no?
On my blow through, I had a front pv and a block off in the rear. A lot of companies now do dual boost referenced power valves
How about I mail you my carb and necessary funds to covert it to a blow through. You can record a video of the process!
If that works out and you get a blow through carb back,,.. then I'm next.
To make this work does the carb have to be a double pumper?
Yes
How much will u charge a feller to build a blow thru carb for a guy?
I don't even know where my booster install tools are, lol
Would a 670CFM carb be enough for a low boost setup on 302?
Probably, I ran 650’s with food success