Coilover Tuning | Eliminate Tire Shake | Double Adjustable Shocks
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- Опубликовано: 18 окт 2024
- Coilover Tuning to Eliminate Tire Shake with Double Adjustable Shocks made easy!
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Drag Race Suspension & Drag Racing shock adjustments, Tuning double adjustable shocks, aka coilovers, to help eliminate tire shake and launching a drag car to set a personal best 60 foot times each pass! This includes actual track results with slo mo video of 3 passes and what changes were made to compression and rebound on front and rear for shock tuning on each pass along with sixty foot short times revealed. This is a ladder bar drag car with Strange Engineering double adjustable shocks and 110 lb coil springs on the rear and QA1 double adjustable shocks up front. Critical to this process is scaling the race car, ensuring installed height of the shocks and making sure you have the right spring compression for stored energy. Corner weights help you setup preload to launch and go straight and wheelie bars are critical in wheel speed and helping steer the car if it wheelies. There is more left in the short times of this car as you can see from the videos. More testing to come. Tuning your drag car suspension is fun and not black magic so learn how to do coilover tuning on your car! This car does run a stiff sidewall slick and this outing was new Hoosiers! Air pressure on these tuning times is a mandatory item to track as you know.
This car is the real deal bracket car. Naturally aspirated, no power adders other than right foot. Single dominator, PAR Racing Engines 601 BBC, Brodix Heads, powerglide and deadly consistent!
Get more help on coilover tuning from my Coilover Playlist:
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Strange Engineering rear shocks:
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Understanding Drag Racing Suspension and Instant Center:
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Great site for sure:
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How to setup double adjustable shocks and springs for drag racing. How to tune rear shocks for drag racing also known as tuning coilovers for drag racing. Drag car alignment is critical as you know for your safety and the safety of the other driver.
Samson Performance of Sams Frame and Alignment in North Charleston, SC.
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#suspension #dragracing #Coilovers #Ford9Inch #chevy #horsepower #qa1 #kevinwilsonsbc #4link #bigblockchevy #nova #dragcar #shocks #amsoil
Omg Kevin you a blessed thank you for making the video on suspension tuning most of the channels focus on power .
Keep up the great work
Charris22-jam thanks so much for your comments! I will be getting another video out soon to cover more of the things to do to improve the hit and down track grip. Been busy getting the FuelTech ECU wired in the 48 Ford so video on that soon also when we crank it for the first time. Go fast, go straight!
Thanks for sharing your thoughts and talent with us.
Had video showing what to do but no video with it on a drag car.
Definitely more left in this race car on the hit. SloMo Video is such an amazing tuning aid on the launch and this video is clear we have to stop how hard this slick is getting pounded into the track, along with other tweaks. More tuning and updates as we can get back to the track!! UPDATE: Spoke to Strange Engineering to confirm we can have these existing shocks sent back in to have a revalve job completed. In addition, they do have an ultra series we can consider.
Thanks for these videos. Stay focused
Thanks so much! Go Fast, Go Straight! Be Safe!
Great video, thanks for sharing. Really enjoy the analysis and rerun after the change. My inexperienced vote, tighten the extension another click up front, tighten extension another click on rear, maybe lengthen IC.
Fred G thanks so much for your comments! We ended up tighten the extension 2 more clicks on rear and another click on front, and made a wheelie bar adjustment along with a 2-step adjustment. The car is sixty footing all day long now, but we are at the limit of the current shocks. There is more in it for sure, but no more tire shake for sure. Go fast, go straight! Stay Safe!
@@KevinWilsonSBC Thanks for the response, this is fascinating for a newbie just starting to learn. How do you know you are at the limits of the shock? Does that mean there is no more adjustment left?
@Fred G Good question. Several ways to tell with video, poor man tricks with tie straps (compression mainly), shock sensors you can setup for data logging, but in short if you are extending the shock to it's full extension travel even at the max extension setting, more than likely you are overpowering that shock. Not only does that hurt performance as you cannot properly keep control of the hit, to me it is a safety concern as well if you damage the shock and then lose control of the car at any point of the run. Like you said, no more adjustment left to keep control of the reaction. QA1 and Strange and others can re-valve a shock with more of a promod type valving or they all have a higher pro series shock with more advanced hi speed and low speed valves. Of course, they are more expensive, but with today's horsepower potential with boost and nitrous, at some point you will end up taking the plunge or softening the hit. Part of the fun controlling all the power at our fingertips today.
Can you do videos on how to get lower 60fts with modern day multi link suspensions? I have a RWD Infinti Q50 currently cutting 1.55 and need to go into the 1.4’s. Thanks for sharing all your knowledge wish you were local to me in FL.
ZillaFullBoost thanks so much for your comments! Will add that to the list. Go fast, go straight! Be Safe!!
The 4 people who gave thumbs down don't have double adjustable coilovers!!
Patrick M. thanks so much for your comments! Agree with you! Go fast, go straight! Be Safe!!
I follow all your videos and appreciate all the knowledge you share. I've contacted a few big name shock companies about suitable shocks for my 1000hp, 2800#, ladder bar, radial car and I've been surprised they don't ask more detail on the combo and don't have readily available dyno numbers. The lack of dyno information confuses and concerns me
Thanks-you!! Give Jerry a call at Penske. Go fast, go straight! Be SAFE!!
Car looks great!
Maybe more aggressive with the ladder bars?
Question, I have double adjustable QA1’s… do you start (0) at full tight, or (0) at full loose? I’ve heard people say either way.
Thanks
Car looks great!
QA1 DD series shocks generally start from full soft. I have videos specifically discussing all things shocks. Definitely watch my video ruclips.net/video/xW04uHfTK3o/видео.html and it will help you a bunch. Trust me. Go fast, go straight! Be SAFE!
Love your videos man!
I appreciate that! Go fast, go straight! Be SAFE!!
Lots more rebound on the rear. Well, maybe not lots, but 4 clicks isn’t gonna hurt anything. And maybe a touch more air in the rear tire.
Great series all around! Thanks! Any updates on this particular car?
Thanks so much!! The car continues to make great strides on muscle with low 5 second passes in the 1/8 mile. Not sure about this season yet though. Go fast, go straight! Be SAFE!!
Slow rear rebound down more and add tire pressure. Be nice if you listed tire pressures and changes as well. 90% of drag racers today overlook tire pressure. Nice vid.
James Hall thanks so much for your comments! I will add tire pressure info for sure going forward. I agree tire pressure is key to track we usually run around 11 - 12 with a big tire slick and separation on the rear vs squat. Go fast, go straight! Be Safe!!
@@KevinWilsonSBC I'm a firm believer in separation regardless of the tire type. With proper tire pressure and shock settings I enjoy driving those tires into the ground!
Awesome video & info, thanks so much for sharing , for a newbie this is so valuable , is there a video on ladder bar you have done by anychance ?
R R thanks so much for your comments! The ladder video is ruclips.net/video/HF9cvi4I_OU/видео.html Go fast, go straight! Be Safe!!
My comment is a question. Would a ladder bar adjustment down one hole in front take away some of the bite?(assuming there is too much bite). If that adjustment was made, would it take away too much separation/bite? You said you were looking for comments for what we thought would help and that along with a little more air pressure would be my thought but, i know absolutely NOTHING about this subject. I recently bought a 71 nova which should be similar to the car in this video.
Moving down will lessen rear separation but most all ladders will create separation. Shock valving is absolutely critical!! I have a video dedicated to ladder bars. Go fast, go straight! Be SAFE!
Kevin Wilson, just curious did Bernt Karlsson by chance build a 1990 GMC pick up truck for you. The truck was featured in the 2000 Truckin Magazine and was the Editors Choice for truck of the year?
That is not me. Sorry. Go fast, go straight! Be SAFE!
great video ,tire to soft or hammering tire
Andrew Thorpe thanks so much for your comments! It is definitely hammering the rear tires. More to come when we can test again. Go fast, go straight!
Kevin, your vids are awesome, do you have any on footbrake vs transbake, I understand transbrake is much more violent but can you go though some of the dynamics involved. Thanks if possible.
Marcus Pace thanks so much for your comments! I will work on getting some good info out on this topic.Go fast, go straight! Be Safe!
I would add another click of compression on the rear and 1 more click of extension in the front??
And add another pound of air
Was there any change made to the tire pressure? Specifically was the psi increased to help stop the tire shake?
Dan Myers thanks so much for your comments! No air pressure changes, just shock adjustment. Go fast, go straight! Be Safe!!
I would try tightening up the rebound a couple clicks
Raymond Guzman thanks so much for your comments! The rebound knob was/is maxed out. We are getting a new set this winter with more pro-mod type valving and we are making a ladder bar change to help take out some of the separation on the hit. Will keep the channel updated as we get more testing completed. Go fast, go straight! Be Safe!!
Kevin, I know this vid is getting old but.... if this was mine I think I'd drop the front of the ladder bar down a hole and then maybe the shock adjustment is back in it's range, what was the outcome?
I've never seen tires almost explode in slow motion!!!
need to add tire psi
I’m not an experienced racer by any means but my first thought was the same as yours. It looked to me like the tire was a little soft and wadding a little too much and almost dead hooking.
ben currie thanks so much for your comments! Go fast, go straight! Be Safe!!
Tire pressure was my thought
When you say 7 clicks are you saying 7 clicks from the least amount or 7 clicks from the most + amount?
Great question and I should have been more clear. In this case, the clicks were from full soft. Go fast, go straight! Be SAFE!!
@@KevinWilsonSBC thank you man! I’m trying to learn as much as I can and i finally started a little channel :)
Question ..why there is body seperation for a second ?
Paco Croeze thanks so much for your question! The ladder bars are set up for separation hence the chassis and rear end separate on the hit. Go fast, go straight! Be Safe!!
Cool
supercharged6771 thanks so much for the "cool"! Go fast, go straight! Be Safe!!