Need some advice on what to expect with a new combination i will be trying in September. Changing to an aluminum 540ci motor...

We have a 2,900# 67 notchback cuda w/ driver, ready to race. Best ET with the 470ci motor on Gas was 9.56 at 143mph with a 1.32 60 foot

34" double adjustable ladder bars with Strange double adjustable coilovers and 110# hypercoils.

Front suspension is stock, with 3 way adjustable shocks set at 90/10 and MP drag race tosion bars. Have adjustable front travel limiters

Tire is a 10.5W - 31 MT Drag (new set) with 9 psi on a 12" rim.

Rear Shocks are set 3 clicks from full soft on both comp and ext.

We scaled the car with the 470 iron block and after installing the MP drag t-bars and after leveling them we found the following:

LF= 859 RF= 796

LR= 633 RR= 623

Total #'s = 2,911

It would hook good and carry the front end for 50 feet if launched on the transbrake around 3,400 rpm but would spin if ever went to 4,000 rpm or more...

On a "very well prepped track" we ran a 1.30 60 foot launcing at 4,400 rpm, but at SIR our home track the traction is not good.

We are now replacing the 470 iron motor w/ a 540ci Indy Aluminum block and Terminator Alcohol injection which will make 150 more HP and take 120#'s off the front end.

What should i do to the suspension to get it to hook with the increased power and less front weight???

Ideas please.

Cheers,

Arnie

Last edited by cudabin; 08/14/09 11:29 PM.

67 Cuda 8.48@ 158.7 mph 1.18 60' 2,600 DA(so far...) 70 Super Bee 440 Six Pack 4-speed. 13.2 @ 104 Stock exhaust/Street tires.