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- เผยแพร่เมื่อ 2 ม.ค. 2021
- The 1963 Studebaker Lark VI picks up major power on the Dyno through tuning the Ameri-Barra Vortec 4200 DOHC VVT Trailblazer Inline 6 Variable Valve Timing (VVT). We made multiple dyno pulls, and played with the tune to optimize the target VVT angle, at various boost levels. This thing is a real sleeper.
Thanks for watching!! - ยานยนต์และพาหนะ
The fact that you are learning to control the VVT with an aftermarket controller is phenomenal. I'll bet the aftermarket is already chasing this same idea. No longer will we see the VVT deletes with aftermarket cams but rather will will see improved mid RPM numbers as you have developed.
Most of the VVT deletes (on LS V8s) I see are because the solenoids/valvetrain is a weak spot. So, this is pretty cool, but once they find what parts are the weak link, they'll need to upgrade those parts. And (again, I think this is cool as hell) I don't know if there is a big enough market for people running these Atlas engine to that level....although Calvin mention Comp Eliminator., so the parts may already be out there. Will keep watching to see how it goes!
The VVT in this application only changes exhaust cam timing, and it was done to eliminate the physical EGR valve, it was not a performance enhancing engineering goal in the first place, as it can only retard exhaust cam timing.
A lot are for the extra duration, it limits you due to valve to valve & piston clearance.
Awesome I can’t wait to see more and more on this, I also think this thing is a 7875 away from massive glory, specially now since it’s a spool monster, it’ll be cool to see if the 7875 will light better now, but yes converter will need some help when that happens
Yeah. Very tempted to put it back on.... I'll run it the way it is. I'd like to stay divided T4.
Awesome results! It sounds amazing. Keep the Studebaker a street car!
VVT IS THE SHIT when you figure out how to make it work from a performance stand point and not mostly for "in cylinder" emissions treatment like most OEMs did.
Good luck with it, looking forward to more Atlas 4200 VVT monkeying around content.
This engine family deserves as much love as the stinking LS/LT.
Awesome.
I really enjoy how comfortable you have become on camera. You explain and review everything so thorough it is really great Calvin. Can't wait to see the car at the track. 😎
Love How you are slowly working at figuring this out and looks like the converter and turbo is going to be your limiting factor.
I just love that you're out there becoming the expert in the 4200 field. Taking some of the VVT lessons you learned from the Fairmont build and bringing it over to the OG. Really dig it man!
Great video, keep making them! Makes me excited to see what my vortec 4200 turbo build does on the dyno. I have a much different setup, but I can see the potential.
You and your dad are wizards. Almost 500 whp. Crazy awesome 😎
New subscriber didn't make it a 1/4 of this video before I hit subscribe and like !! Great content
Thanks for bringing us along with the Atlas adventure. I just recently found out about these and I am amazed there has not been more people working with them.
You're welcome
This is so cool. I appreciate a homegrown build & a down to earth builder. Keep at it bubba! 💪🏻💯
I believe you are out of turbo my friend. The choke point in a head varies with pressure, as pressure goes up, the speed of sound goes up so it raises your ceiling. I'd leave it where it currently is if you are having fun with it and it makes you smile. I really enjoyed the vvt testing!
Yea she absolutely wants more boost !! Time for a new turbo or another T4 twined up 3 on each with smaller hot sides on both so it won't lag and put decent dome pressure on mtr
Great content! Thank you for making this video.
I'm loving what you're doing with the 4200. Can't wait to see where this goes from here. Bigger turbo? More accurate vvt control? Different converter? I'm excited. Thanks for taking the time to share the process.
I love this car, and learn something and feel dumb at the same time in every vid! Keep educating :)
Awesome . I found your 4.2 vvt and knew I had to sub. I am driving my second tblaze 4.2. Love these motors. I had a tune on my 04. Have a 06 now. Getting ready to go 4.11 gear and local/Wichita Dyno is going to tune it for me. Thanks for the 4.2 "music" tonight. Also have a 60 Chev pu with 355/4 speed. 375 at the wheels. 👍🤘
👍Hard to beat the 4.2. I've got 2 TB's. An 02 & 07. 213k miles and 135k miles on 07. Maintain them and they'll last a long time!
This is a super cool build
Sound much more "alive" now! Looking forward to the track results 👍
great work!
I love that sound
Just me or did any body else cringe thinking the coolant was going end up in turbo
That looks awesome
Nice job on the header
On my 07 Colorado, the cam values are 0-25 degrees but I have never seen it hit even one cell in the 21-25 angle ve table while logging. 20 is the most you will see with the stock computer.
Great video, lots of info had to subscribe
It’s no too much fuel, it’s not enough air! 😂 good job, I like the methodical testing on the dyno to get power under the curve and not just throw boost and timing at it to get a big number then have a laggy shit box that won’t get out of its own way on the street because it won’t light off the turbo under 4500 rpm
16 commercials! You guys are sure making us work for watching your videos! 😆 I know you guys have any control over this but you tube is definitely banking on this channel
Hell yeah man... get some!!
Turbo is done shortly after tip in.
Does anyone have a video of one of those built 4.2 engines running 10k rpm?
Falconer the only one I’ve seen with any kind of “built” versions of these for any kind of money. I think his is up to around 8k rpms....
I'd also like some more info on them
Sounds like it spools up fast!
A straight up 4200 rebuild video would be awesome :)
I think it's just out of turbo in terms of the backpressure. The way I think about it, if you have a perfect 1:1 backpressure/boost ratio that's like you're just running the engine in an atmosphere with that much more atmospheric pressure. So the flow of the head isn't changed, it's still running like stock. But when that backpressure at the turbine inlet goes high, it exacerbates the port back pressure. But by what relationship, I dunno. It could be that say if the backpressure goes up 3 psi, the port pressure also does, or it could be that port pressure goes even higher with some sort of exponential relationship. I'd guess it's more linear. I think it just needs a bigger turbo!
It does need a bigger turbo or a smaller hot side housing at the least .. he isn't building any dome pressure ( exhaust not spoiling the turbo to it's potential) his back half hot side housing is to large allowing a large portion of the exhaust to flow freely through housing instead of it being used to spin turbo up quicker and higher ! I'd say twin it with 2 T4's with design sized hot side housing! Either way more boost is needed !!
Please, please, PLEASE do a TJI conversion on the head! The tear-drop plug holes are perfect to fit a direct injector/ surface discharge spark plug, and a stainless steel button head 14mm hex screw that is drilled out with 6 2mm holes drilled around the button edge. Can lean burn (30:1 afr) for more power like the F1 engines do!
I love the song you queued when the antifreeze started gushing? did you get any inspiration from Chevy Chase in Christmas Vacation for that?
What turbo is on that thing? Seems like it need a LS type Turbo almost.
Also what the size of exhaust piping?
The upside to high drive pressure - a restrictive exh manifold isn't as restrictive. X lbs of exhaust at 30psi needs half the volume to flow well vs X lbs at 15psi.
Jiiihaa. 100hp/litre boosted. I m amazed. How did you do it
How does it get on the converter with this turbo? I think an s366 would've been a perfect choice turbo for 500+
It hits the converter hard. I agree. S366 will be next.
Lucky it didn't direct coolant into the turbo 😬
Love the build 👍
For real. Thanks for watching
ever since i got my 02 envoy when i was 16 ive wanted to put twins on it just like the tbss was supposed to have
I have an 1979 chevy banaza i want to 4.2l vortex swap it cam stock with an 4.1l line 6.
I want to do an mild turbo build the only issue I am having is the the oil pan and pickup was wondering if you could point me in the right direction? Thank you
Emtech motorsports makes a nice oil pan.
Check out the oil pan tab. sites.google.com/view/vortec4200wiki/home
What are you using to tune that 4.2 with?
Megasquirt Goldbox
Would you be able to do this with a stock computer?
Maybe. I know the MAF sensor starts to struggle once the airflow starts to get high.
Can you do a video detailing your fuel delivery system. im going to build my own 4.2
It's extremely basic. Uses the factory rail with fittings welded on the return and feed so that I can run an aftermarket regulator. Other than that it's an in tank walbro 450.
What Trans are you running and is there a stick shift Trans that will bolt up to the 4200
It will idle shitty because of Hvac that sits under driver's side (the Exhaust port you're using for back pressure right now ) blows exhaust into a mini jet that feed gases into intake... My 05 Blazer runs bad if I unconnected the feed to intake ..... I Say take that extra exhaust pressure and port into the turbo... What can go Wrong???
58-x is still only 6 deg per tooth.
360/60=6
The missing tooth gap is also considered
If your vvt can do variable position you should setup a target table so you can hit the ideal cam angle for any rpm and load.
My engine does not have a 58 tooth crank trigger on the cam or the crank.
Also, Setting up that target table at different loads and RPMs was exactly what we were doing in the video. The issues I was having were because the ECU was giving strange readings. It took a bit more fiddling, but I figured out that I had a setting wrong. I'm probably the only person in the world messing with this particular feature on this particular engine. There are no base tunes for this setup. Had to figure everything out by trial and error.
@@Calvin-Nelson gotcha, why where you mentioning idle angle being wrong? Seems like the rest position usually works best, no intake advance
The computer was telling me it was at like -4 degrees with no duty cycle. Also this engine only has exhaust VVT. I retarded the intake one tooth on the cam sprocket.
The Megasquirt was giving me a range of -4 to 33 degrees. So 37 degrees of movement. I know for a fact that this profit only has 25° to give. Once I fixed that setting that I was talking about before it now gives me a span of 25°
that converter is screaming in agony lol
My motor does not like alcohol in my water injection .I think vvt maybe be a problem.
Looking to get 500 hp out of my 4.2 Trailblazer. Any sugggestions?
Turbo, larger injectors, ethanol. Read the wiki.
hot rod magazine turned 9 s i the quarter with a 292 6 cylinder single turbo powered 1938 chevy coupe.
They did? When? Where?
I love your build! Im starting a build of my own and know nothing about tuning. Am going to use a megasquirt ecm. And cant seem to find a base map anywhere online! Was wondering if by chance you have a base map youd be willing to email me that i can flash and atleast get mine started
It's on the wiki. sites.google.com/view/vortec4200wiki/home
@@Calvin-Nelson sheeeesssshhhhh that site has almost all the answers!!! Thank you!
@@jmracing7732 no problem. Spent a lot of time on it.
A bigger turbo would be cool I think u could see 550-600 hp
I can not afford dyno they want 700.00 plus in Florida .I really ty for vvt info.
I'm planning a build with 4200, just with a 2006, which flows better.
Ok. Cool. We've done quite a few 06+ engines
Would it be better for a beginner to just use the non vvt
All these engines had VVT. It is totally worth the trouble. Makes the engine a completely different animal.
@@Calvin-Nelson hmm, well my other question is the HP tuners platform compatible with thus ecm,
@@Calvin-Nelson going to have to watch all your videos, im wanting to put one into a 1991 s10, but I don't have access to a dyno with as friendly environment you have, I have my butt dyno and a buddy with a laptop. Also wanting to watch your entire adapter plate video and see if I can figure out a way to put a nv3500 or older Manuel trans behind it for a nice little street truck.
@@kevinaweseom2866 Hptuners is compatible.
Also, check this out. A friend of mine and I made this. Should save some time for you.
sites.google.com/view/vortec4200wiki/home
@@Calvin-Nelson thanks! I found the Facebook group too
What rear end do you have under it?
Chevy 8.5" 10 bolt.
@@Calvin-Nelson was it an easy install or did it take a lot of fabrication? I'm trying to decide what I'm doing. Maybe a ranger 8.8 or is the 10 bolt a better fit?
@@jasonzitt6408 A narrowed Explorer 8.8 would be how we would do it now. It's just leaf springs. Hardest part is getting the old brackets cut off. Also getting the narrowed axle housing jigged up right can take some time.
@@Calvin-Nelson Cool, thank you.
What are the turbo specs?
Billet Gt3582 with a 65mm turbine
What is the hot side a/r
@@codyharrelson89 1.25 if I remember right.
I was thinking GT45 would be a good stepping stone.
Eh. They spool too slowly. S366 is the answer I think.
@@Calvin-Nelson 5000 stall converter? 300 shot? Both? Just kidding, of course. I have an 07 2900 4 cyl sitting on a stand in the garage, a P12 ecm thats licensed for HPTuners that needs a project car.
1:11 I'm Kickin Dexcool in ya face
Very cool project. With all that room for a proper air filter why didnt you use one? No wheel liners and only a TG your just going to eat dirt and trash the combo.
My intercooler is my air filter. It will be fine.
That'll keep big stuff out, but dust will wear out your cylinder walls and valves/valve seats faster if you're worried about longevity
@@joshdrobny93 I'll probably knock a rod out long before that.
@@Calvin-Nelson I’m from the future, and yes you do,,,,,lol
This discourages me to do this
DRIVE PRESSURE
Somebody watches Gale Banks.
@@Calvin-Nelson called it that before banks had a youtube channel
Just wait till it pounds out the exhaust valve seats
Been running it for quite a while. Done a lot of dumb stuff to it. So far it doesn't want to quit.
I do like the combo, stude is cool.
Do you follow Richard Holdener? Check him out...he just got one of these and will probably be running it boosted over the next week or two
@@johnhull6363 Well aware of Richard. Actually been helping him out here and there on it.
Love this motor but calling it an ameribarra is an insult to the actual barra
Tell that to the 30 people that ask me if it's an "Ameri-Barra" at car shows. Just trying to use the language people know it by.
*laughs in Barra*
If I ever see this car I’m calling the police 😂😂 because it’s stolen.