jmeister

iTrader: (3)

why does my car still bogg off the line even when i launch it at 6000. the car weighs about 4k.i have all suspension parts(qual shocks with coil overs,k-member,a-arms,body mount ta,9inc rear w/ 411,lca,panhard bar,back sway bar,6-point cage(wolfe),biogarts with 325s out back and skinnies up front. the tire is 28 in tall tire.,tnt f2(150 shot).402 iron block pushing 525rwhp. is it because the car is too heavy and it is hooking too good. will putting a 26in tall tire help or do you think taking off some weight will help.
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rule 7 ss

iTrader: (1)

you shooting wet or dry kit? whats your AFR it could be running to rich. Assuming since launching at 6k your a M6. whats your setting for front and back on the qa1s?

jmeister

iTrader: (3)

ihave the shocks set at 3-4 front,5-6 back. yea its a m6 and cant remember afr. my buddy and i am thinking its because its too heavy.i have wet kit, but i am not spraying it untill i get this issue resolved

Shon Herron

iTrader: (25)

Launch higher!! put more air in the tires to get a little chirp.
Or spray it off the line, it shouldnt bog then.

Is the tune good?

jmeister

iTrader: (3)

well i had the car tuned and to be honest i am really not to0. happy with the tune.it does hesitate whern i try to take off and therms are under 1k then when its over that its ok. is that normal

Shon Herron

iTrader: (25)

I dont think that is normal

jmeister

iTrader: (3)

any other sugestions

Shon Herron

iTrader: (25)

From me?
I would log it and see if it all looks right. Could they have richened it up knowing you were going to spray it?
Does it have KR, that hurts power alot!

jmeister

iTrader: (3)

well when we launch it it pulls the wheels then it falls on its as then it takes offf fine.that why we are thining the car is too heavy.

Shon Herron

iTrader: (25)

Weight is tough on parts.
The clutch could be grabbing nicely but then slipping.
How much air you run in the tires, have you played with those pressures?
To get over our bogging we put in more gear and launched higher...

theoldman

I myself would say you have too much bite...I would try tightening up the front shocks, after that I would play with tire preasure. But only do one change at a time or you will not know what picked the car up. I don't think that your clutch is slipping after you leave. I have seen some cars that are too "lean" and have the same symtoms as you, especially stick cars that are holding it at the line at 6000.

25thhawk

iTrader: (3)

Are you using a two step? If not, I would get one. It lets the car launch much harder without bogging it.

jmeister

iTrader: (3)

how does it help launch harder with a two step. we are launching it at 6k+.i would think thats hard enough.

Stu'sWS6

iTrader: (3)

You need more gear w/ the 28" tall tire. Try 4.56's or go to a 26" slick for the motor. I have 4.56's and 28's---my car will bog if it dead hooks & it is much lighter than yours.

I would say lose some weight and go with a 26" for a quick fix.

Gary Z

Yes and yes and yes.

25thhawk

iTrader: (3)

Launching without a 2-step at 6k is still a part throttle launch. The car picks up the wheels because of the inertia of the clutch, but then bogs because it is at part throttle.

A 2-step allows you to launch at whatever rpm you want but with the gas pedal fully pressed down. That way you are wide open as soon as you let go of the clutch.

The first time I used mine, I used to launch a 3k (stock rear) and cut 1.9 60 ft on DR's. On the 2-step at the same rpm, It picked up the front tires, broke the differential and still cut a 1.9 60 ft.

Do a search there are alot of people using them.

I am not saying the weight and the tires aren't an issue, but hooking and then bogging is usally an issue of not enough power or part throttle launches. and you should definately have enough power.

Ryan