Watch this launch vid and tell me what my car needs...

[Daniel Mitchell]

I can't seem to get this car to transfer any weight to the rear tires. Here is what my front and rear suspension consists of:
Front:
Tubular k-member and a-arms, coilovers with 160# 14" Hypercoil springs, Strange adjustable struts. Also has a manual rack but has AC and still has the battery up front.
Rear:
Megabite Jr lowers and adjustable uppers. Stock springs that have had a little cut off of them. Torque boxes are welded and it has subframe connectors.
Otherwise, the car is full weight, AOD, etc. I run on M/T 26x10 slicks with around 12-13psi in them. This particular run was with the struts set 2 clicks from full loose but I had already tried some other settings with no luck. Here's the vid:
http://videos.streetfire.net/video/8...700006237f.htm

[Daniel Mitchell]

Just from watching it again and pausing at the very start of the launch, it looks like I could use some stiffening at the right rear, possibly an airbag or adjustable shock right there. Maybe a little stiffer setting on the front strut on the pass side as well. But that still won't get the front end up.

BTW, that was a 1.46 60' time.

[etatum21]

A sway bar will help tremendously. Keeps the rear tires planting at the same time. Also an airbag will help, but is more of a bandade than anything. Try an adjustable swaybar, should help level the car out. (p.s. I am no expert, so get another opinion before spending the cash ) The car needs more preload on the right rear to level out on launch. The only problem with this is that is can affect cornering ability, depends on if the car is a driver or a race car.

[TonyG]

I had the same problem, and fixed it with 13 way QA1 adjustable rear shocks from summit. I set the passenger/rear stiffer. I also have adjustable front struts, and set the driver/front on a stiffer setting.

[chvyeter]

we had a 170 lbs spring in the front and dropped to 130 lbs and went from 1.6's to 1.43 60ft times with nothing else changed

[SKR8PN]

Loose the A/C,put the battery in the left rear corner.
Then go to adjustable rear shocks.
Then, if needed, try an adjustable rear sway bar.

[Daniel Mitchell]

Originally Posted by etatum21

The car needs more preload on the right rear to level out on launch. The only problem with this is that is can affect cornering ability, depends on if the car is a driver or a race car.

Yes it has been my daily driver for a while now. It has the stock rear sway bar installed but no front. I'm not concerned at all about cornering. I don't hang curves or anything. And I rarely ever break the speed limit.

[Daniel Mitchell]

Originally Posted by SKR8PN

Loose the A/C,put the battery in the left rear corner.
Then go to adjustable rear shocks.
Then, if needed, try an adjustable rear sway bar.

My left rear corner is occupied by my 1 gallon fuel cell for the nitrous fuel system. The right side is the bottle. And I have to load one of my slicks in the middle, so there's no room in the trunk for anything else.
I think I'll try an adjustable shock. It looks like I can get away with just buying one for the passenger's side since that's the side that's squatting so much. I think I may turn on the coilovers some to raise it up. Maybe it's just too damn low?

[Daniel Mitchell]

Originally Posted by chvyeter

we had a 170 lbs spring in the front and dropped to 130 lbs and went from 1.6's to 1.43 60ft times with nothing else changed

Actually I have cut a 1.38 60' before with a 200# spring and stock k-member. Now I have switched to 160# and lost weight off of the front so it should work better than before. It makes more power than it did before as well though.

[gray86hatch]

It looks like the rear of the car needs to be much lower. get the bar angles correct. I would guess the instant center is way off.

Set the front struts full loose.
Get a sway bar for the rear. Most likley a 130 to 140 front spring. no need to remove the weight off the front if you don't want to.
you need to get a long spring with lots of stored energy to toss the front of the car up.

Tim

[Daniel Mitchell]

It must just be the way it looks in the vid or something because the rear is pretty low, as is the front. This isn't a great angle, but here is a pic of it from another angle.

[gray86hatch]

What location do you have the lower control arm in.

you want the lower control arm parallel to the ground. this will get the IC and AS close. with 26" tires you have to get the car down in the weeds

Tim

[KEVIN$]

Get an antiroll bar..

ks

[93hatch]

Originally Posted by KEVIN$

Get an antiroll bar..

ks

+1. I also thought some 140 springs might help.

What kind of 60' would you like to see? That 1.38 sounds good. Consistant 1.3x?

[Daniel Mitchell]

No, it wasn't consistent 1.3s back then and a 1.46 was my best yesterday and accordong to everyone else the track was hooking great.

[Adrenalin]

Originally Posted by Daniel Mitchell

I can't seem to get this car to transfer any weight to the rear tires. Here is what my front and rear suspension consists of:
Front:
Tubular k-member and a-arms, coilovers with 160# 14" Hypercoil springs, Strange adjustable struts. Also has a manual rack but has AC and still has the battery up front.
Rear:
Megabite Jr lowers and adjustable uppers. Stock springs that have had a little cut off of them. Torque boxes are welded and it has subframe connectors.
Otherwise, the car is full weight, AOD, etc. I run on M/T 26x10 slicks with around 12-13psi in them. This particular run was with the struts set 2 clicks from full loose but I had already tried some other settings with no luck. Here's the vid:
http://videos.streetfire.net/video/8...700006237f.htm

Simple,

The problem is that you have entirely too much horsepower/torque. Just send me oh about 150-200 of that and you should be good to go!

[Mo-D]

Hey Daniel, how have you been. Have you seen that FFW is going to have a 10.60 index class next year with a .500 pro tree? Adjust those shift points down a little and come have some fun

[Daniel Mitchell]

Originally Posted by Mo-D

Hey Daniel, how have you been. Have you seen that FFW is going to have a 10.60 index class next year with a .500 pro tree? Adjust those shift points down a little and come have some fun

What's up Kyle? Amazingly enough, you had just crossed my mind earlier today! Kind of a long story but anyway...that's kinda freaky, lol. I hadn't heard about the new FFW class but I'm pretty sure I still can't stand George, lol.

[Mo-D]

That is weird. LOL Well, just stay away from George and you don't have to like him. Ha ha ha ha ha

[99whitecobra]

i was up there that day, thats a sick car man

[Daniel Mitchell]

Originally Posted by 99whitecobra

i was up there that day, thats a sick car man

If you were racing that day then you should be on the DVD that they are putting together. Thanks for the compliment!

[99whitecobra]

Originally Posted by Daniel Mitchell

If you were racing that day then you should be on the DVD that they are putting together. Thanks for the compliment!

i wasnt able to have my turd ready in time to race

[nate-roth]

Get an anti-roll bar and use some kind of pin w/ clip on one side so you can disconnect it when not at the track. Probably best mod I ever made for going to the track was the anti-roll bar.