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Old 12-17-2011, 12:40 PM   #31 (permalink)
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Yea I already have the rear bumper cut and have the holes in it. Im looking at stuff that I may have overlooked. I plan on doing the flat bottom of the car and close front bumper.

I was also just reading about the tire spouts and how much it helps. Every little thing will help above 60mph.

Stefan

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Old 01-25-2012, 04:31 PM   #32 (permalink)
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Gurney flaps on the front wheel wells might help a bit. I re-read your rules and it never said you couldn't use them. It never said you couldn't boattail behind tires either.
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Old 03-18-2012, 01:46 PM   #33 (permalink)
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A little update on the car since the race season is getting closer and closer. Engine is almost done.

Car is getting the front bumper closed with sheet metal. Im leaving a little lip up front.



Soon I will get a chance to tackle the rest of the car.

Stefan
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Old 06-06-2013, 12:26 PM   #34 (permalink)
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Well I been MIA for the last few months but I been really busy with a new shop, but I also had a little time for the race car.

Ended up reusing the same motor from last year and just refresh it a little bit to do some more testing on the car. We dyno tuned the car and it made about the same hp as the motor last year.

For the most part the set up is the same, with a few exceptions.

Weight is 2050 instead of 2150
Intake manifold instead of ITB's
Under car belly pan
Rear diffuser

Car ran a best of 10.9@ 126 mph.

This year first time out we were in for a surprise. We were expecting the car running a 10.8 or a 10.7 due to being 100 lbs lighter.

Fist run off the trailer car ran a 10.69@127mph.

Through out the day we tested a few different tire pressures and launch techniques and by the end of the day we were able to bring down the time to 10.65 @ 128 mph.

A week later and a few more improvement on the car, including a few more hp from some changes we did on the dyno we were out to another race.

Again first pass off the trailer was to be a surprise. With a very fast car lining up to us I decided to go all out and see what I can do. Car bogged in 1st gear from our 8000 rpm launch down to 4000 rpm where power is very limited. But the car came out ok and on the return road I picked up a slip that was 10.56@130.2 mph.

Not sure what of the changes worked yet, but im assuming that my long search for the aerodynamics of the car had allowed me to run some good times in conjunction with a well set up suspension and a not so bad power from a small motor (my 2.4 vs 2.7l comparing to other faster cars)

So I wanted to thank this forum for being so open about mods that work and willing to help others.

Stefan
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Old 06-06-2013, 04:10 PM   #35 (permalink)
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Quote:
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Car ran a best of 10.9@ 126 mph.
thats very good!
You're running N/A engine?
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Old 06-06-2013, 05:40 PM   #36 (permalink)
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Quote:
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thats very good!
You're running N/A engine?
Yes sir car is all motor making about 330 whp.

Stefan
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Old 06-06-2013, 09:35 PM   #37 (permalink)
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Very nice! i must say, your all motor is faster than some turbo civics in my country
And they strip all the interior(and everything lol).
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Old 06-08-2013, 10:45 AM   #38 (permalink)
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Thanks guys, I hope to get it a little faster this year on the same motor.

Stefan
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Old 06-08-2013, 11:45 AM   #39 (permalink)
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Thanks guys, I hope to get it a little faster this year on the same motor.

Stefan
Looking at your pictures (didn't read alot of detail) I can see a few more aero improvements.(dont know if they are against the rules)
Boattail the rear of the tires,
Smooth wheel covers,
Side skirts,
And make the splitter a ground scraper(if it isn't already)

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