2 Step Launch RPM on Slicks

[ITSTOCK]

My car is 100% stock suspension and IRS (plus brace), but I have a 28x10x17 hoosier drag slick in the rear with front runners. Launching at 3500, the car dives down a bit and I can't seem to do better than 1.53. It does spin a little, but it seems to be wheel speed in a good way. What is everyone else launching at? I'd like to get a better starting point for the next trip to the track and was thinking 4200 or higher.

[video=youtube;XhUSAS3JZXo]https://www.youtube.com/watch?v=XhUSAS3JZXo[/video]

 

[mkb116]

You need more sidewall i'd guess. That seems pretty good for the setup you have with 17's. If the nose is diving you need more rpm.

 

[3xBlackCobra]

That was a nice race either way :thumbsup:

 

[ctgreddy]

I have my 2step at 4400, seems to work well so far but I just moved it up from 4k and have only made a couple hits at 4400. I'm also on a 15" slick so it might work better.

 

[Senkak]

I rarely use a two step but here is an older video when I did.

https://www.youtube.com/watch?v=bBP1pbYpp7Y

 

[bubblehead93]

depending on track conditions, dial it in between 3800 and 4400... run same slick w/built IRS...

r/
Andy