Track Testing Blown SBC 48 Ford Coupe | Drag Racing Suspension Tuning
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- เผยแพร่เมื่อ 13 ต.ค. 2024
- Full Pass & Personal Best Track Testing Blown SBC 48 Ford Coupe at South Carolina Motorplex! Big tire slicks on a radial prep track! Tuning QA1 double adjustable shocks and coilovers with rear separation on slicks. Drag racing suspension tuning with real track results.
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This video covers our second trip to the track with the blown SBC in the 48 Ford Coupe. As you will see we made great progress on tuning the suspension and 4 link bar angles to lower the instant center to get the 48 Ford to a new personal best ET in the 1/8 mile and a new personal best 60 foot time! I cover every run and the changes we made for each run to continue improving. This includes shock settings, coil springs and air pressure in slicks. Unfortunately, we did have an issue with the motor, but still posted personal best times! You will not believe what happened to the blown SBC and I will show everything we hurt at the end of the video!!
Samson Performance of Sam's Alignment in North Charleston, SC:
Get with us at our shop to let us help you scale your car and do a complete plot of your car as it is today and then we can discuss what changes, if any, we would recommend. We do drag car chassis tuning, chassis setup and ensure the suspension is setup for the best drag racing launches possible! We also offer online remote services from our website here below:
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Special thanks to Tommy Krupa and the entire team at South Carolina Motorplex!
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Fully Adjustable Gbody Upper A Arms:
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Checkered Racing Rear Back half:
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Rear Shocks and springs:
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Front Shocks/Springs G-Body Type Coilover Spring:
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Amsoil Products for all your high performance needs:
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#suspension #dragracing #coilovers #chevy #horsepower #qa1 #kevinwilsonsbc #dragcar #scmotorplex #660 #sbc #streetrace #1320 #supercharger
Only channel that shares info transparently. No BS here! Refreshing! Thanks Kevin!
Big-J thanks so much for your comments and the compliment! I really enjoy sharing the info and I hope to help others learn from my mistakes and experience. Appreciate you taking the time to leave an encouraging comment. Go fast, go straight! Be Safe!!
by far the best suspension videos i have watched, he helped me understand how it works and what to do when it doesn't . took my car from not hooking to running a best of 8.39 @163 couldn't have done it without you
Andrew Thorpe thanks so much for your comments! Go fast, go straight! Be Safe!!
I have not used header gaskets for 25 years on stock car or drag cars make sure headers are straight file flat just use rtv silicone sealer ultra black bolt the header too the head metal to metal no gasket to blow bolts never come loose price is right , try it.
James Nanney thanks so much for your suggestion! You and many others have told me to go this way. Sounds like the way to go. Go fast, go straight! Be Safe!!
You must run copper gaskets or what I do is orange high temp RTV.
When the air gets better you fatten it not lean it.
You need EGT sensors. You tune off temp not O2.
You also need to tighten up that front end. And take some air out of the rear tire.
Leaving on the foot brake you are tuning for that launch. Get on the brake and set your launch rpm. You do not have enough wheel speed. Throw some power at it. You need to look good at your wheel speed at .25 at launch. Wheel speed and drive shaft RPM.
The compression on the rear shock seems very very soft.
StressedDdts thanks so much for your comments! Lots of great feedback!!! Thanks for taking the time to leave your comments for sure! Go fast, go straight! Be Safe!!
Been seriously binge watching ur stuff the last few days. Love listening to you. So many people who actually know what they are doing are arrogant pricks but u seem like a great dude. Keep it up.
Blacksheep Auto thanks so much for your comments! Go fast, go straight! Be Safe!!
Hey Tri stage 8 locking header bolts they fixed my problem just make sure of the length so they don't bottom out in the head and you think they're tight
Dale Chirstopher thanks so much for your comments and advice! Go fast, go straight! Be Safe!!
Great suspension info!
Your videos have helped me get my first fast drag launching straight and hard. Went from a 12 second chevelle to a 9.30 monza. Would've been pretty lost without these videos
Yep red loctite. They will still disassemble when you need to.
Kevin if you dont mind I'd like to hear about your blower setup. Hat nozzles and nozzles in the intake, what blower etc. I would greatly appreciate it
Jody Smith thanks so much for your questions! I will get this documented for you and share it with you. Shoot me an email from my website samsonperformance.com so I can get that info to you. Go fast, go straight! Be Safe!!
@@KevinWilsonSBC email Sent!
Great job on your channel very informative people it took me 6 years to learn everything this guy is teaching people the hard way.
Camaro Drag Racing Second Generation thanks so much for your comments! You compliment is very nice and appreciated. Thanks so much! Go fast, go straight! Be Safe!!
LST shocks can freshen those shocks up for you. Reasonable and Great Service.
Jody Smith thanks so much for the info on LST! I will look them up. Go fast, go straight! Be Safe!!
@@KevinWilsonSBC I'll send you his number via Email.
oh, wow. You know the way you were talking about this build in one of your older videos you sounded like you were questioning yourself. I knew your 48 would do good. anyone saying that this type of engine is outdated might be right, but your knowledge on suspension and stuff isn't outdated. and thats what I want to do with my truck. awesome video.
David Craft thanks so much! I am actually glad I did the MFI over the carbs considering how simple the system is to tune. Go fast, go straight! Be Safe!!
Pass #1 it shook the tires because the wheelie bars leveraged the rear tires off the track!
HeadFlowInc thanks so much for your comments! Agreed. I got to slow down the front end and I could lengthen the IC a bit more to help calm it down. Good observations and thanks for commenting with that info! Go fast, go straight! Be Safe!!
Stage 8 header bolts could help
Great videos Kevin and Dad, your not only a heckuva teacher but a good story teller too. Keep breakin it down for us.
Peter Beyl thanks so much for your comments! Really appreciate the compliments! Thank-you! Go fast, go straight! Be Safe!!
So losing hp/ torque helped your suspension problem to a degree. I could hear the difference on the video in the engine and also seen flames from the exhaust at the end of the burnout which means fuel is burning in the pipes. I am happy that it wasn't a catastrophic failure.
Stuart Buckley thanks so much for your comments! I am so glad we caught it when we did. I have pulled some timing out of it and making some 4 link changes to help it calm down on the hit for sure. Looking forward to getting it back out to do more testing. Go fast, go straight! Be Safe!!
I just started watching some of your videos a couple hours ago. Very informative. I need to look on one of your videos about anti squat line.
I have a 69 Nova with a 555 in it and it goes pretty straight straight, i learned how to adjust the ladder bars on one of your videos earlier. Your videos are straight forward and informative
Jay's Guyrage thanks so much for your comments! Thanks for also subscribing and supporting the channel! Go fast, go straight! Be Safe!!
It's always the little things that get ya. Great work solving the problem!!
Stan Lane thanks so much for your comments! I am just hoping I didn't do more damage running it like I did. Thanks for your support! Go fast, go straight! Be Safe!!
I have that problem on my altered. We have a bolt check list for between each run. Good suspension info in the vid
jamoshotrod thanks so much for your comments! I remember those days with my altered as well. Go fast, go straight! Be Safe!!
Great video, Kevin! You are one heckuva teacher. I was losing header bolts too and burning gaskets right through the traps. Changing gasket brands didn't help but what DID work was going to the serrated header bolts. The face bites into the flange as you tighten it and since they are at an angle they won't loosen without a wrench! My header bolts are NEVER loose now and I put a lot of street miles on my car too. In your case running methanol, I would RTV the headers and use NO gasket along with the studs and serated-type nuts. Use Permatex Ultra-Copper it will not burn. run a bead around each port and let it skin over, then install the header but DO NOT TIGHTEN. After about and hour go ahead and torque them down. This will work.
OneFastDuster thanks so much for your comments! Great info you just shared so I will be going down that path for sure! Thanks for supporting the channel! Go fast, go straight! Be Safe!!
Instablaster...
ROFLMFAO!!! What a story!! ha ha ha!!! Well, thank god it's an easy fix and no expensive damage!! I can't count how many times I've had things like this happen throughout the years at the drag strip. You look, and look, and look, can't find anything, then one day you find it, and it turns out to be the dumbest thing!! ha ha ha Yep, been there and done that! Great video, thanks for sharing.
Patrick M. thanks so much for your comments! Go fast, go straight! Be Safe!!
Did you ever pull plugs ?
Jim Franklin thanks so much for your question! I only pulled the #1 plug that day. Had I took the time to continue checking the plugs, especially the 2, 4, 6 or 8, I would have noticed the header gasket. Yep, I was overlooking the very obvious and that is on me. Needless to say, I now have an in between round list of things to check on this setup for sure. Go fast, go straight! Be Safe!!
Not bad testing. Now you will get to see if it liked the fuel or not next outing.
Jody Smith thanks so much for your comments! Yeah, I may need to back off the fuel once I get some header back pressure. Good point! Go fast, go straight! Be Safe!!
Dang I hope it didn't damage any valves or warp a head!!! Still a nice day at the track!
Kaleb Hall thanks so much for your comments! Me and you both! More inspection forthcoming. Thanks for commenting! Go fast, go straight! Be Safe!!
@@KevinWilsonSBC hey man you know these old hot rods, it's always the one thing we don't check! From the outside looking in a guy can ask hey why didn't you look at that? Well it's because between rounds there's a hundred things to look at and try to make another pass! Sweet ride and awesome info. Your videos have helped me tune my suspension.
I've never made more than one change at a time. Get's way confusing and impossible to know what change made the difference. Get the engine hot and re-torque the headers bolts, you'll get 1/2 to 3/4 more turn on them.
Strange 8 bolts are very good..
GHT RCP thanks so much for your comments! Go fast, go straight! Be Safe!!
Kevin, are you using one wide band on each side of the engine?
Rafael Castilhos thanks so much for your question! Yes, WB in each collector. Go fast, go straight! Be Safe!!
Awesome Kevin. You have to get it fixed and out again before the season ends. Too long a time to wait and wonder. Ask me how i know!!! So with your rebound maxxed what would you have to change to gain back some adjustment. Thanks
Scott Nettell Racing thanks so much for your comments! I would need to length the instant center a tad and I could have probably taken a few clicks back out this weekend, but got sidetracked with chasing afr... On a radial prep and with a car that separates, you really need to slow down the extension. The shorter IC length hits it hard and fast. Go fast, go straight! Be Safe!!
I think I'll go out to the garage right now and check the header bolts! Bet you can't wait to get back out to the track and see what it will run now.
Slimecuda thanks so much for your comments! I will be checking those every freaking round now!!! LOL! Go fast, go straight! Be Safe!!
All the best.
Ali Almahasna thanks so much for your comments! Go fast, go straight! Be Safe!!
Question when you pull the parachute how bad does it pull on the car.
Camaro Drag Racing Second Generation thanks so much for your question! Not too bad, and not as bad as I thought it would, but my chute frame mount is a tad lower than the center of gravity of the car, so when the chute "pops" I can feel it compress the rear chassis just a tad on the coilovers and it definitely helps slow the heavy 48 a bunch. I like how it pulls down on the rear planting the slicks for sure. Hope that helps! Go fast, go straight! Be Safe!!
This is why I have no hood on my car.. these cars nowadays are so reliable, we only just look at logs and make tuneup changes, add fuel pull to the lanes. I look over my Engine (exterior) after every pass.
It’s not a Nova thanks so much for your comments! We pull the hood after each run to add methanol since it is only a 5 gallon fuel cell, so this has been added to the checklist for sure. Go fast, go straight! Be Safe!!
Great Progress!! Copper RTV if your headers have a good thick flange works for me!
B.H. H thanks so much for your comments! I will definitely be checking out the Copper RTV!! Go fast, go straight! Be Safe!!
Would you try “stage 8” fasteners?
Web Hatley thanks so much for your question! I am willing to give them a try. Right now we have studs and lock nuts on them. Go fast, go straight! Be Safe!!
@@KevinWilsonSBC I forgot to say that I really enjoy the channel
One question and Im not being a smart ass but, Why didnt you pull the plugs when you noticed a slight miss???? Thats my go to when I would ever feel a miss. Did It burn the valves because of the header flange leak that happens very quick when the headers come lose.
doon714 thanks so much for your comments and I don't take it as a smart ass question! I did pull # 1 and #2 plugs after round 2 and the headers didn't get my attention or they were not as bad, but I had on some thick gloves due to the heat after the run and I had people all around me trying to talk and ask me questions. When I pulled the front two plugs they looked a tad lean, so I was convinced it was a lean miss, not a plug issue. Had I pulled #7 or #8, I am pretty sure I would have seen the header flange pulling away from the head. It doesn't help that the blower restraint belts come right across that area, but I just flat out went brain dead on this entire miss issue. I am not sure if I burned any valves but I will be doing a compression check for sure. Go fast, go straight! Be Safe!!
Buddy I got a question I have a 62 nova 2850lb 630+ hp 1.34 60ft I think it should have more than 10:90s what do you think
Russ Turner thanks so much for your question and details! There are many factors at play so I need to be careful. I will go out on a limb and say I think there is more left in it, especially 60ft times. The 48 Ford Coupe with a naturally aspirated SBC 406 on alcohol with around 700 HP, turbo 400, 5500 stall Cameron converter, 4.30 gears and my 4 link suspension tune at 3430 lbs ran consistent 1.30 60ft times. Go fast, go straight! Be Safe!!
@@KevinWilsonSBC I’m going to Georgia in January to do some racing I’ll look you guys up thanks for your videos it helps us out quite a bit and try choose norlock washers I work at us steel we use them on everything including are race cars 👍
Look us up for sure! I will definitely try out the norlock washers.Thanks for the compliments on the videos and glad they are helping!
Jesus you have some huge arms!
LOL. I need to get back in the weight room! Go fast, go straight! Be SAFE!
What does that car weigh
With me in it right at 3500 lbs. Go fast, go straight! Be SAFE!
@@KevinWilsonSBC dang that's gotta be making some serious power I know what it took to get my 4000lb truck into the low 5s
Kevin what length and height are you running your IC at? I have a '50 Ply. coupe I'm trying to get down a marginal/rural 1/8 mi. track.
Mighty Mopar thanks so much for your question! Instant center height on my 4 link is 7.5" and IC length is 44". The 48 has a higher CG than most drag cars so that makes it more tricky. Go fast, go straight! Be Safe!!
Thanks Kevin for the timely reply. What a coincidence. I plotted out my IC today and ended up with 46" @7.25". This was with a 100lbs. in a Competition Engineering battery/weight box placed as close to the trunk latch as possible. I'm hoping this will improve traction and keep the weight transfer/ wheelie a longer distance.
@@KevinWilsonSBC Thanks for the timely reply. On your first pass you had the wheelie bars set @7"/6.25". Where were you measuring from? Thanks, Bill
Norlock washer you will never have lose bolts
Russ Turner thanks so much for your comments! I will check those out for sure! Go fast, go straight! Be Safe!!
love it
Tom Damon thanks so much for your comments! Go fast, go straight! Be Safe!!
Use ultra copper RTV its ugly but it works on all my street/race turbo cars
Victor Dahn thanks so much for your comments! Great advice!!! Go fast, go straight! Be Safe!!
Maybe a bigger header pipe (too much pressure) NOT MUCH! 1/8 or 1/4 inch
Fred Barnes thanks so much for your suggestion! This one is on me. I am not too smart to not check the header bolts or pull all the plugs which would have forced me to see the header flange better. Not too mention how loud the engine got and different sounding it got each run. Short story is this is on me! Go fast, go straight! Be Safe!!
Here what I use for header bolts. AutoZone
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Auto Parts
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Emission Control And Exhaust
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Clamps, Hangers And Straps
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Performance Exhaust Header Bolt
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Spectre Lock Wire Header Bolt
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Roberts Gbody Racing thanks so much for your comments! Go fast, go straight! Be Safe!!
You add those and you header bolts do not loose up
If you what my channel you will see my problems.
You help with my car is appreciate.
As you see my my Visio. When traction get bad my car goes right.
When it hooks goes straight.
Thank for your help
Watch
those tires lol
ran pretty good without a gasket though
MRgreen thanks! More changes on those tires for sure. LOL! Stiff sidewalls and beadlocks here we come. Go fast, go straight! Be Safe!!
I think so... more left in it. Go Fast, go straight! Be SAFE!