Part weights with fiberglass/CF replacement weights

[billy]

That would be interesting, an 130whp sp1 straight to a 430whp cup car. I'm debating racing in PCA with the car, I'll do another year DE regardless before doing anything silly.

[bbailey]

Just for comparison...

BIR Club Race track record is 2:04.044. I think only one person has ever run a SP1 there and he isn't as fast as some people. Class I is 2:03.0 by a good driver.

2:10 will be a good goal for the end of this year. I wouldn't expect it first time out.

[billy]

Agreed,
Under 2:10 would be cool. First fling had an sp1 doing a 2:04.x but the driver was an ex or current racer in the skip barber series and so is guaranteed faster than me and thats fine.

Apparently, the class I record for Road America is 2:48 which is amazing with what seems like 160bhp. Conan managed a 2:47 in his 350Z which seems slow in comparison given the bhp advantage he had. Granted, the class I probadly had double konis and hoosies on and the driver was probadly an experienced racer also. But, still 2:48 seems a wicked time at that track for a low hp car given the straights.

http://www.pca.org/clubrace/track_re...ck-Records.htm

[Conan]

Originally Posted by billy

Agreed,
Under 2:10 would be cool. First fling had an sp1 doing a 2:04.x but the driver was an ex or current racer in the skip barber series and so is guaranteed faster than me and thats fine.

Apparently, the class I record for Road America is 2:48 which is amazing with what seems like 160bhp. Conan managed a 2:47 in his 350Z which seems slow in comparison given the bhp advantage he had. Granted, the class I probadly had double konis and hoosies on and the driver was probadly an experienced racer also. But, still 2:48 seems a wicked time at that track for a low hp car given the straights.

http://www.pca.org/clubrace/track_re...ck-Records.htm

It makes sense to me. Let's do some math:

Conan at RA: 2:47. That's 2.78 minutes. So,
(60 min/1 hr)(4.048 miles/2.78 min) = (appx) 87 mph avg.
Conan at BIR: 1:57. That's 1.95 minutes. So,
(60 min/1 hr)(3.1 miles/1.95 minutes) = (appx) 95 mph avg.
That's makes me 8% faster at BIR where HP means more than it does at RA.

Class I record at RA: 2:48. That's 2.80 minutes. So,
(60 min/1 hr)(4.048 miles/2.80 min) = (appx) 86.7 mph avg.
Class I record at BIR (according to BBailey): 2:03. That's 2.05 minutes, so
(60 min/1 hr)(3.1 miles/2.05 minutes) = (appx) 90 mph avg.
That makes the Class I 5% faster at BIR than at RA.

Now, since RA requires more skill and more grip to be faster, those numbers make total sense to me.

[JimLill]

HP isn't the answer............

a 120 HP ITB car does 2:55 there on a good day.

[Conan]

Originally Posted by JimLill

HP isn't the answer............

a 120 HP ITB car does 2:55 there on a good day.

I wasn't suggesting it was THE answer. Just part of it.

[JimLill]

Originally Posted by Conan

I wasn't suggesting it was THE answer. Just part of it.

That was a general comment, not aimed at any previous post..............

[mrepka]

Originally Posted by billy

Agreed,
Under 2:10 would be cool. First fling had an sp1 doing a 2:04.x but the driver was an ex or current racer in the skip barber series and so is guaranteed faster than me and thats fine.

Apparently, the class I record for Road America is 2:48 which is amazing with what seems like 160bhp. Conan managed a 2:47 in his 350Z which seems slow in comparison given the bhp advantage he had. Granted, the class I probadly had double konis and hoosies on and the driver was probadly an experienced racer also. But, still 2:48 seems a wicked time at that track for a low hp car given the straights.

http://www.pca.org/clubrace/track_re...ck-Records.htm

You need to consider the whole package; HP, weight, tires, etc. Skippy cars weigh 1200lbs, and have approx 130 HP. good for 2:33s (from me) at RA

My stock 94 Vette had 300hp, same driver, same track, 2:46s. Need to be carefull when comparing lap times that you are talking apples to apples...

[Magnus]

Originally Posted by billy

Found this today.

http://gt-racing.com/GTR944.pdf

Just the hood is 79lbs with fiber glass its 16lbs. Magnus set me off on this, he says he drove a 2300lb 944 with driver in Sweden, pretty light but all panels were fiber glass.

Oopsss.. perhaps your wallet would have been better of if I wouldn't have mentioned that

Anyway, here's a picture for inspiration:
100% gutted, all possible panels replaced including windows and doors. Even side mirrors are replaced to smaller ones