Power to weight ratio for each it class

[StephenB]

And remember...do NOT just take the weight of a car and divide it by that number and expect that crank HP to work out. The calculation works like this:

Stock HP x expected/estimated increase with IT prep (usually 25%)...THEN adders are used. FWD, DW, torque, etc.

I am not interested in CHANGING anything... I think that the ITAC has already done far more research and has a far better understanding than I do. I am looking more at which cars would be able to easily hit the target and which ones may struggle.

[Andy Bettencourt]

Understood. I am just trying to nip the comments coming when people just use the number to back calculate without adders.

For you, remember adders when you are estimating.

[erlrich]

Sorry - I just thought you were looking for the P/W ratios...kinda like the title says

The only cars I know anything about are the ITA 240SX and the ITR Camaro/Firebird. The 240SX coupe has no trouble making weight, the hatch needs a little work to get there (mine is ~ 70 lbs heavy with a 260 lb driver).

The Camaro/Firebird in ITR will not get close to weight IMO. That's only based on calculations, but I do know mine (hardtop) weighs right at 3350 w/o driver (and 1/4 tank of fuel). Add even 180 for the driver and 100 for a cage, and it would have to lose over 800 lbs to make ITR weight. Everything I've been able to dig up on the car says 450-500 lbs is doable, but not 800. Which means it is going to be at least 250, probably closer to 300 lbs heavy. In a class where it's already outclassed...

[StephenB]

[QUOTE=erlrich;348962]Sorry - I just thought you were looking for the P/W ratios...kinda like the title says

T/QUOTE]

I was . Then decided to build on that without creating a new thread...

Stephen