Need some advice on hooking high HP on the street
Need some advice on hooking high HP on the street I tried posting this in the tire forum without any luck 
I'm having a lot of trouble getting my car to hook up on the street. I just dynoed the car and it made 703whp/640wtq on a turbo setup. I'm running 275/40/17 Mickey Thompson DR's on the car and it's blowing them off in the upper rpms of third gear. I've never played with the tire pressure on them so looking for some advice on what is safe to run the tire at on the street. Right now they are at 32psi.
Any advice? What are you guys doing to get your high HP cars to hook on the street? Thanks guys!
I'm having a lot of trouble getting my car to hook up on the street. I just dynoed the car and it made 703whp/640wtq on a turbo setup. I'm running 275/40/17 Mickey Thompson DR's on the car and it's blowing them off in the upper rpms of third gear. I've never played with the tire pressure on them so looking for some advice on what is safe to run the tire at on the street. Right now they are at 32psi.
Any advice? What are you guys doing to get your high HP cars to hook on the street? Thanks guys!
What's your suspension set up? Its the 17s that are killing you. My 305/35/18 mt drags are useless on the street even at 80mph but the MT Pros 275/60/15 hook on the street almost as well as they do at the track its crazy
Those tires should easily hook on your car and especially in 3rd gear. Lower your tire pressure, remove sway bar and buy decent adjustable shocks. If the streets get too cold it really doesn't matter what you do. I can hook 275/40-17 Toyo proxes tq in 1st gear on my car. Oh I forgot to mention lower control arm brackets and an adjustable torque arm help alot.
Thanks guys i'll give the tire pressure drop a try and see if it helps, I was just curious to see what others running similar power were doing. It was in the low 80's and the tires were still blowing off the car at around 80-90mph in 3rd gear.
I have full suspension on the rear of the car, LCA's, relocation brackets, panhard, torque arm. No shocks yet though just the stock Billsteins on there now.
I have full suspension on the rear of the car, LCA's, relocation brackets, panhard, torque arm. No shocks yet though just the stock Billsteins on there now.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
I run mine around 25psi. Doesn't always hook but that's why I know how to use the left pedal. Have adjustable pfadt shocks so that helps some when i'm not tearing up the twisties. This is on 345/30/19's
Last edited by Detoxx03; Sep 23, 2013 at 12:08 AM.
17" tires have a small sidewall and shock the tires too hard. I run a 325/50/15 bfg drag radial and have good luck hooking on the street. If I hit it hard from a stop it will spin, but ease into it and then pour the power on it will dead hook.
Our weather around here is getting a bit chilly so i'm sure that's going to hurt traction a lot
Last edited by 607motorsports; Sep 22, 2013 at 10:24 PM.
Do you have any clue what your instant center is? I hook perfectly fine anything from 20mph+ in my 3900lb crown vic on a 26" 275 mickey thompson radial. Then again I roll around on 18psi everywhere I go because I'm too lazy to put air back in it when I leave the track. It gets up to about 20psi driving around. If it doesn't hook after getting your instant center figured out, just add weight, it seems to be working for me. LOL.
Oh, and instant center is lightyears more important than pinion angle.
Oh, and instant center is lightyears more important than pinion angle.
Yea give that a try first. A bigger tire, or more sidewall, etc is all a band-aide. I have a friend that knows a ton about suspension, I told him my measurements, and he told me what to do. So I got some old worn out springs to lower the rear of the car 1.5-2", and that put my instant center right at the back of the trans and 20"off the ground.
All I have are billet aluminum control arms in the rear and some comp engineering 3 ways front and back. 30-70 back and 90-10 up front. She gets down alright for a heavy turbo footbrake car. Anyone that has ever raced at clarksville knows how (un) friendly it can be to radial cars unless you have your stuff dialed in.
All I have are billet aluminum control arms in the rear and some comp engineering 3 ways front and back. 30-70 back and 90-10 up front. She gets down alright for a heavy turbo footbrake car. Anyone that has ever raced at clarksville knows how (un) friendly it can be to radial cars unless you have your stuff dialed in.
First find someone to setup your suspension if you don't know how.
Second, and the one that most seem to forget is power management. We put down over 1000rwhp on the street on a pure street tire(not drag radials) and make the car work.
Second, and the one that most seem to forget is power management. We put down over 1000rwhp on the street on a pure street tire(not drag radials) and make the car work.
