Author Topic: The whole truth and nothing but the truth....the '974' 2007 B'ville story......  (Read 7137 times)

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Offline tortoise

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From your site, Sum;
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We will add more weight to the car for next year. It should help us to accelerate faster by using more HP in the lower gears and help to make the car more stable and also help to get the HP to the ground at top speed.
Where are you putting the added weight? It won't help your acceleration in the lower gears unless it shifts a higher percentage of total weight onto the drive wheels, moving the center of gravity rearward. This, as you know, can have a negative effect on stability.

Offline Sumner

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From your site, Sum;
Quote
We will add more weight to the car for next year. It should help us to accelerate faster by using more HP in the lower gears and help to make the car more stable and also help to get the HP to the ground at top speed.
Where are you putting the added weight? It won't help your acceleration in the lower gears unless it shifts a higher percentage of total weight onto the drive wheels, moving the center of gravity rearward. This, as you know, can have a negative effect on stability.

It will be placed so the drive wheels will see more weight, but also placed to keep the CG ahead.  We need to rescale the car now and see where we are.  We want to keep it about 50/50 or 51/49, front/rear.  You are correct that to get more weight on the drive wheels we will have to counter with more up front.

Hooley is planning to maybe replace some sections of the fiberglass belly-pan with 1/4 to 3/8 inch steel plate.  That will give us some options besides the ones we have now where the weight will go.  The car is only about 4000 lbs. now and I think to run in the 250's it might need to be 5000+ like some of the Studes in the past.

Thanks for the input,

Sum