WRL at COTA for WDMS - F-Body Road Racing and Autocross Forums

Full writeup and vids to come, but we ran our endurance car "Bic" at COTA a few weeks ago. I can't really call it a 'crapcan' car anymore since we freshened the motor and actually put some decent dampers on it.

(IMG:http://www.witchdoctormotorsports.com/host370.jpg)

(IMG:http://www.witchdoctormotorsports.com/host371.jpg)

SATURDAY's 8 hour race: Lost a shift fork in the T5 on Saturday.

SUNDAY's 8 hour race: Finished 4th in class.

The big thing is we ran competitive times and mostly lost out due to bad breaks with redflags and fuel stops as well as an incorrect 'passing under yellow' penalty where we got hosed. The last race at TWS, we won GP4 both days. It happens.

Weighs 3100ish depending on the ballast we're running.

Tires must be 180 treadwear or better and we've run the dunlop star specs, the nitto nt05s and tested the Falken Fk615 at COTA. We liked them and will run them the next race. 275.40.17s.

Dampers are factory low-mile deCarbons in the rear and the HD bilstein B6 non-adjustables in the front. No rear bar but the huge solid ST bar up front. We run a lot of front spring rate.

Next step on handling is to dial in the falkens more and see what they like. We rough-guessed the air pressure for COTA but I'll test soon and we'll hook up my real-time-tire temperature rig (http://www.witchdoctormotorsports.com/ch192.htm) to get the tires in the sweet spot for pressure and alignment settings. Once that is done, we'll see what comes next.

Still running the stock front single-piston brakes with good luck, but I'm helping to develop (w/ Stan) a cost-effective kit to run the wilwood superlite calipers with a badass 3-point bracket (most kits, including stock 1LE, use a two point bracket) which is coming soon. We have 3.23 and 3.42 rear ends depending on track. The rears are 4th gen setups and we run the 2.25" bolt on front spacers so we can use easy-n-cheap 4th gen/corvette wheels.

WRL has four classes, (GP1, GP2, GP3 and GP4) and they are based on power to weight. We run the slowest class, GP4, which has a power to weight limit of 18 to 1. We have the 170hp TBI 305 and at 18 we need to weigh 3060. Gp3 is 15:1, Gp2 is 13:1 and gp1 is 11:1. Clearly we could go TPI motor and jump classes, but the car is cost effective to run and very fun to drive.

I'll post more when we get the story and vids uploaded. I *think* this was the first 3rd gen to actually race at COTA. (dubious honor at best...LOL)

Costas
cars and such...

Shortcutsleeping View Member Profile	Mar 9 2016, 11:21 PM Post #1
Experienced Member Group: Advanced Members Posts: 1,038 Joined: 29-December 03 From: Texas, USA Member No.: 62	Full writeup and vids to come, but we ran our endurance car "Bic" at COTA a few weeks ago. I can't really call it a 'crapcan' car anymore since we freshened the motor and actually put some decent dampers on it. (IMG:http://www.witchdoctormotorsports.com/host370.jpg) (IMG:http://www.witchdoctormotorsports.com/host371.jpg) SATURDAY's 8 hour race: Lost a shift fork in the T5 on Saturday. SUNDAY's 8 hour race: Finished 4th in class. The big thing is we ran competitive times and mostly lost out due to bad breaks with redflags and fuel stops as well as an incorrect 'passing under yellow' penalty where we got hosed. The last race at TWS, we won GP4 both days. It happens. Weighs 3100ish depending on the ballast we're running. Tires must be 180 treadwear or better and we've run the dunlop star specs, the nitto nt05s and tested the Falken Fk615 at COTA. We liked them and will run them the next race. 275.40.17s. Dampers are factory low-mile deCarbons in the rear and the HD bilstein B6 non-adjustables in the front. No rear bar but the huge solid ST bar up front. We run a lot of front spring rate. Next step on handling is to dial in the falkens more and see what they like. We rough-guessed the air pressure for COTA but I'll test soon and we'll hook up my real-time-tire temperature rig (http://www.witchdoctormotorsports.com/ch192.htm) to get the tires in the sweet spot for pressure and alignment settings. Once that is done, we'll see what comes next. Still running the stock front single-piston brakes with good luck, but I'm helping to develop (w/ Stan) a cost-effective kit to run the wilwood superlite calipers with a badass 3-point bracket (most kits, including stock 1LE, use a two point bracket) which is coming soon. We have 3.23 and 3.42 rear ends depending on track. The rears are 4th gen setups and we run the 2.25" bolt on front spacers so we can use easy-n-cheap 4th gen/corvette wheels. WRL has four classes, (GP1, GP2, GP3 and GP4) and they are based on power to weight. We run the slowest class, GP4, which has a power to weight limit of 18 to 1. We have the 170hp TBI 305 and at 18 we need to weigh 3060. Gp3 is 15:1, Gp2 is 13:1 and gp1 is 11:1. Clearly we could go TPI motor and jump classes, but the car is cost effective to run and very fun to drive. I'll post more when we get the story and vids uploaded. I think this was the first 3rd gen to actually race at COTA. (dubious honor at best...LOL) Costas cars and such...