Would I have to declare points for these things?

[RacerRick]

Since I am already claiming shocks and springs, and non stock alignment, would I have to claim for the following things or are they already covered?

Spring adjusters

Raising the rear leaf sping mounts 1 inch to lower the car without lowering blocks. Pinion angle remains the same.

Boxing the lower control arms

Offset a-arm shafts for more negative camber without using he factory alignment method of shimming.

[Dave]

the only thing on that list you'd need to claim is boxing the lower control arms under section 6.2.10. The other changes all appear to be for alignment reasons (covered under section 6.2.3 which you're already claiming) or ride height or spring rate reasons (which you're already claiming under section 6.2.5).

[glh]

A question per rule changes. Dave stated in another post that 12 prep points to the engine would require a dyno plot . Is this a change for 04 {I couldn't find this in the 03 book} and I now have 15 prep points to my engine so do I have to go to the dyno plot. My curent set is a grand total of 74 prep pointswhich would have me in GT2. If I have to go to the dyno plot I won't know where i stand untill april or may when every thing is finished.
Steve

[Dave]

Steve, in '03 we had a dyno plot option where competitors with 12 or more PIPs in their engine could opt to submit a dyno plot that would serve as the basis for classification (we substitute the modified horsepower level into the classifiation spreadsheet and then you add your suspension and body&trim PIPs to this new starting PI).

In '04 we are changing this option to a requirement, meaning all cars with 12 or more PIPs in the engine will be required to submit a dyno plot before competing in an event.

So yes, you will need to provide us a with a dyno plot. If you want to calculate your new starting PI, just plug your estimated hp level into the spreadsheet (I can e-mail you a copy if you don't have one already) and let it do the math for you :) BTW, we convert from whp to bhp by dividing the whp number by 0.85 (in other words we assume a 15% drivetrain loss, which is a pretty standard figure).

[glh]

Thanks Dave I was looking forward to running in GT2 but we shall se where we end up now and yes could please send me a spread sheet
thanks again steve

[ScotcH]

Originally posted by Dave
BTW, we convert from whp to bhp by dividing the whp number by 0.85 (in other words we assume a 15% drivetrain loss, which is a pretty standard figure).

I though this was closer to about 20%? I know Hondas are pretty efficient, but some of the other cars (BMW included) I seem to recall are around 20% .... maybe just for auto?

[Dave]

auto trannies have a much higher loss rate (25%ish), but I doubt we'll see an auto ever use the dyno plot requirement. For standard transmissions, 15% loss works pretty well for most cars. We've researched this pretty extensively and although there are differences between the losses seen on FWD, RWD, and AWD cars they are small enough that it's not worth complicated the process by having different correction factors.