1/4 mile runs

[aubrey9160]

Im looking at doing a few 1/4 mile runs in the car this year and just wanted a bit of advise.Its a 4-5 cerb with a hydratrak diff. What am I likely to knacker up and what tyre pressures should I be thinking about.
Thanks in advance for the replies.Aubrey

[Tanguero]

If its well maintained you are unlikeley to knacker anything apart from the clutch. Try dropping your rear tyre pressures to 14 or thereabouts. Have fun!

[Brummmie]

I run Toyo 888's, i let the pressures down from my usual 24psi to 15, the car handled horrible in a straight line, felt dangerous. So stuck to the usual pressures. Just my experience.

[aubrey9160]

Im presuming its only the rear tyre pressures I lower.What sort of times should I expect from a standard 4.5 cerb about 13secs?

[dbv8]

You should be in the 12's if the tracks got half decent traction and your motors healthy.
Maybe into the 11's if it all comes together.
I used to run R888's as low as 13psi but i would recommend you start about 18psi and take a little out at a time. Keep the pressures up in the fronts as it helps reduce drag a little.

See my post here for some times and specs etc for comparison http://www.pistonheads.com/xforums/topic.asp?h=0&a...

Oh and dont give it full beans off the line, wheelspin is bad.
http://www.youtube.com/watch?v=jGfGs2S2z3M
http://www.youtube.com/watch?v=ZBYwtMAmCsY