mightymouse383

I have a full set of QA1 coilovers and need some advice on adjusting them for the best launch at the track.

MyShibbyZ28

Although I wouldn't be able to help you with how to adjust them for a given set up, but I can tell you we might need more information.

How is your car set up?
What does the car weigh? Front and back?
What is your instance center?
How do you launch? RPM?
Slicks?
Does the car roll on launch?
How much power does the car have?
What do you want it to do on launch?
etc...

fast 93 z

Judging from the info in your sig a good starting point for you would be set the fronts on 1 and the rears on 7 (with slicks) 4 (with street tires) 6 (drag radials)

mightymouse383

Car is set up to drag race, skinny's in front, no front sway bar. Car weighs 3220 lbs without me in it, instance center? launch @ 3500 to 4000. run nitto 555r's, car dyno'd 390hp to wheels. Best sixty foot I have been able to get is a 2.3 and car went 12.80 @ 114 mph.

timelord

If you only get 2.3 60ft (horrible) get some real DRs or slicks,you should be getting 1.8 on decent tires with all the go fast parts you have,the shocks aren't your biggest problem.Try launching about 1500 rpm lower also.

mightymouse383

The last time I checked my DR's were real, I just went outside and touched them to make sure they were....lol. The problem is not the DR's, it was the tune, I now have a mail order tune from Madz28 and with the old tune the timming was too advanced down in the lower RPM and MAP range.

The car would fall flat on its face no matter what RPM I launched at, I have not ran the car with the new tune yet. I hope the car will come out of the hole and not bog!

Hope to atleast run a low 12 and get a 1.9 to 1.8 60'

timelord

Okay that makes more sense,even with my bone stock car on original tires(17 years ago) I was getting 2.0 60s.

Our cars are similar and on DRs(hoosier/BFG/MT) 60 would be about 1.74-1.78 with the t56 lauching at 1500-1800.

With the 4L60e and slicks got even better.

If you want pictures set front to 3-4 if you want great 60 set front to 10-12.

Rear can't help you,still running stock.

fast 93 z

I disagree. To transfer weight you need the front to be loose especially on a lower hp car such as his. Setting the fronts tight will end up allowing the rear to un-load or hop after launch.

timelord

Hello !



I found that if I set my fronts to 1 when the car came back down I hit the wheelwells (nicely shattered) or when you hit the brakes hard on a short shutdown track the tires would scrape again.

In my case 3-4 is soft and gives a nice lift(maybe my springs are getting soft).

Mine gets great traction(on a well prepped track)at higher setting,maybe its due to my old rear shocks.

Serge

fast 93 z

The difference is your rear shocks. He has QA1's on all 4 corners. He should set them at at 1 on the front and a 6 or 7 on the rears. Let it eat!

I have the QA1's and pull mid 1.2 60fts. Trust me on this.

timelord

You are a demi god take my word for it , I trust you.

I was speaking from my experience to a car that seems pretty similar to mine,couldn't figure the 2.3 60 with all his goodies,didn't state the tune problem.

I think i still have the original shocks in back,that might help my car sit down so well,,,,lol



Serge

fast 93 z

Serge you would see an improvement if you change out your rear shocks. If you are pulling 1.8 60's it could get it down to 1.6

That squatting motion from the stock shocks causes lost initial planting power and lost forward momentum.

timelord

Hello !!

My 60 fts are down to 1.44(very well prepped track)to 1.48-.49 on an average track.

I thought of changing but since it is my DD I thought I should at least have one original part on it!!!! LOL.

Serge

fast 93 z

Very nice considering stock rear shocks. Change them out and get into the 1.3's!

timelord

Will do it eventualy and then maybe i will get my 10.xx,,,,