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-   -   Launch question for you drag guys (https://www.rx7club.com/race-car-tech-103/launch-question-you-drag-guys-277420/)

totallimmortal 02-29-04 09:14 PM

Launch question for you drag guys
 
to avoid wheel hop should i be launching at a higher or lower RPM?

HKS_DRIFTER 03-01-04 04:15 AM

i would think lower

Jahoo88 03-06-04 12:33 PM

try slipping the clutch a bit more... bad for the clutch but a bit better for wheel hop on my car.

If you dont like slipping i found higher to be better.

Tried 3k and i would bog. 3.5... bog 4 k wheelhop... 4.5 less wheelhop... 5k no wheelhop but too much wheelspin.

4.5k with a bit of clutch slip and no wheelhop/not much wheelspin and a 2.0 60ft with shitty no name all season tires.

Cheers! 03-06-04 01:41 PM


Originally posted by Jahoo88
try slipping the clutch a bit more... bad for the clutch but a bit better for wheel hop on my car.

If you dont like slipping i found higher to be better.

Tried 3k and i would bog. 3.5... bog 4 k wheelhop... 4.5 less wheelhop... 5k no wheelhop but too much wheelspin.

4.5k with a bit of clutch slip and no wheelhop/not much wheelspin and a 2.0 60ft with shitty no name all season tires.

and you wonder why your clutch is dead and my is fine. You installed the same clutch after i installed my.

totallimmortal 03-06-04 02:02 PM

ok I get better 60 ft times (2.1 in an NA with just intake and exhaust) when I launch at 6.5k no clutch slip but lots of wheel spin but i guess thats ok with those 60ft times right?

87GTR 03-07-04 11:30 AM

what kind of tires are you using?

totallimmortal 03-07-04 01:48 PM

currently bald 205s but i'm getting 245s whenever they get here

Jahoo88 03-08-04 08:25 AM

haha... yah slipping the clutch at the track isnt recommended if you have a stock organic disc and dont feel like doing a clutch job any time soon. I think those launches glazed my disc.

On my NA i would launch at 4.5k on the street and let it spin more because it had no torque... with the t2 setup i have to launch between 3k - 3.5k on the street otherwise 1st gear is just useless wheelspin. The above post was for launching on a much sticker track surface.

fastcarfreak 03-08-04 10:32 PM

to avoid wheel hop get a differential brace. revving higher usually helps too.

mikey D 03-09-04 03:58 PM

get hevier springs and stiffer shocks....youll get less hop.

mikey D 03-09-04 04:06 PM

get hevier springs and stiffer shocks....youll get less hop.


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