Pics From NASA event @ Road America

[Racer--X]

We had a great time at RA. There were tons of cars there. Lots of Vettes, as usual. Anybody from the forum go? Skip Barber Racing was there with their Mazda powered open wheel cars and the Toyo Challenge Porsche's were running there too. We had a little rain on Sun. Running on a wet track was educational and fun. As usual there were a few cars that kissed the wall but everyone was OK.

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[asian312]

Why do you tempt me with pictures of RA

Thanks for sharing the pics. How'd ya do in TT-D? Speaking of which, I have a buddy whos looking into tracking his Goat. Any comments or hints about the cars characteristics on track?

 

[talonTSIDriver]

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Who is this? I saw this car at a BlackHawk Farms Lapping Day I attended earlier this year.

 

[Racer--X]

Why do you tempt me with pictures of RA

Thanks for sharing the pics. How'd ya do in TT-D? Speaking of which, I have a buddy whos looking into tracking his Goat. Any comments or hints about the cars characteristics on track?

What???? you didn't get to gooo, AW, poor baby, sucks to be you.
We got 2nd both Sat & Sun. RA is a great track for high HP cars. As far as your friend tell him to install strut tower & radius rod bushings, lower the back end and a rear sway bar. The car pushes and on shorter tracks with tight turns it sucks cause the cars so noise heavy. I would set the car up differently now that I know, but we're at our point limit.

Who is this? I saw this car at a BlackHawk Farms Lapping Day I attended earlier this year.

Sorry I haven't a clue who that is, and I wasn't at Blackhawk this year. I gave the camera to my 17 yr old son and told him to take pics of cool looking cars. You have to admit, that car looks good.

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[gsx roadracer]

Who is this? I saw this car at a BlackHawk Farms Lapping Day I attended earlier this year.

That would happen to be myself. I was runnning in HPDE group 4 that ran at the same time as the TT cars. I had a great time, but the car ran awful.

I have spent every available minute since last weekend trying to locate the problem. I was unable to push any more than about 13psi of boost without getting a terrible misfire. As you all know, if you can't put the gas to the floor at Road America you get eaten alive out there. I posted some terrible times those 2 days and had to run at the back of the pack with the miatas. I have pretty much narrowed it down to a weakening fuel pump and will be placing a new one on order today. Hopefully that fixes the problem, otherwise I don't know what to do. Everything else in the fuel/ignition system checks out fine and I have found absolutely no boost leaks.

Speaking of Blackhawk farms, will anyone be attending the next Midwestern Council autocross event on the 25th? I had better get things figured out with my car in order to stay in contention for the BM class championship.

Jeff

 

[talonTSIDriver]

That would happen to be myself. I was runnning in HPDE group 4 that ran at the same time as the TT cars. I had a great time, but the car ran awful.

I have spent every available minute since last weekend trying to locate the problem. I was unable to push any more than about 13psi of boost without getting a terrible misfire. As you all know, if you can't put the gas to the floor at Road America you get eaten alive out there. I posted some terrible times those 2 days and had to run at the back of the pack with the miatas. I have pretty much narrowed it down to a weakening fuel pump and will be placing a new one on order today. Hopefully that fixes the problem, otherwise I don't know what to do. Everything else in the fuel/ignition system checks out fine and I have found absolutely no boost leaks.

Speaking of Blackhawk farms, will anyone be attending the next Midwestern Council autocross event on the 25th? I had better get things figured out with my car in order to stay in contention for the BM class championship.

Jeff

Sweet, another DSM will be at BHF on the 25th. I have been trying to get others to go. Have you replaced your spark plugs and wires. I go through 2 sets of plugs in a season.

 

[gsx roadracer]

Having another DSM join us will be great. I am usually the only one that ever shows up to Midwestern Council events. We always paddock in the area on the front straight down towards turn 1.

I have gone through about 4 sets of plugs trying to solve the problem. I have just about cleaned the Rockford area out of BPR7ES plugs. I started gapping them at .029" and have worked my way down to .026". No matter what I do they seem to come out glazed looking after each run. I just aquired DSM Link, and the tuning runs are not pointing towards any tuning issues. The reason I think it is the fuel pump is that when we run the pump without the car running, the regulator shows a perfect 43.5 pressure and will climb the exact 1:1 ratio when I apply pressure to the top side of the regulator. Once it hits about 58-59 the needle on the fpr starts to fluctuate by a few psi and the pump changes tone to a pulsating tone like it is cutting in and out. There is plenty of power going back to it with the rewire that I had done to it.

I don't think it is the plug wires because all the plugs come out looking the same, not just one or two of them.

Any ideas???

 

[pagosa dsm]

I had the same problem with my old dodge colt. I found it was one of three things, bad plugs, spark plug wires and heat soaking from the intake charge. I did't have a intercooler on it. These might give you an idea.

 

[jtmcinder]

Any ideas???

Clogged sock on the fuel pump and/or clogged fuel filter. (?)

- Jtoby

 

[talonTSIDriver]

do you have a wideband? if so, log the DSM-links estimated A/F ratio and the wideband's A/F ratio. If they don't follow the same curve, you have a definite fuel problem.