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MazdaMatt · 07-23-2008, 03:43 PM

Well this isn't exaclty the forum for talking about race cars, but at least my race car uses less gas in an 8-hour training day than a corvette uses in a 40-minute track session.

My Del Sol has some good mods, but none of them are power-mods. I have a high-gear ratio tranny that is crap for acceleration, and a small motor. D16Z6 for those of you that care. Due to lack of power, i figure .CdA is the place to tune this car.

The profile of a Del Sol is aerodynamic-vomit. So far I have used the advice of this forum to make a "garden edging air dam" that extends my bumper 6" closer to the ground and I've installed a coroplast partial undertray (from firewall back with a gap in the middle for exhaust). It also has a 1-piece fiberglass hood/fenders/bumper that is wonderfully smooth and has fender flares to reduce my wheel turbulence.

My next intended step is to turn the car into a fast-back with a piece of flexible lexan. I am hoping to create a profile that matches the curve of a NACA aerofoil as described in another thread about rear window curves.

After that, a rear diffuser to smooth the flow around the gas tank and my incomplete rear-end.

Also possibly garden-edge side-skirts.

Any suggestions re: fastback design?

07-23-2008, 03:43 PM	#1 (permalink)
MazdaMatt Master EcoModder Join Date: Jun 2008 Location: London, Ontario Posts: 1,096 2k2Prot5 - '02 Mazda Protege5 90 day: 33.82 mpg (US) Thanks: 0 Thanked 17 Times in 14 Posts	aeromodding del sol track car Well this isn't exaclty the forum for talking about race cars, but at least my race car uses less gas in an 8-hour training day than a corvette uses in a 40-minute track session. My Del Sol has some good mods, but none of them are power-mods. I have a high-gear ratio tranny that is crap for acceleration, and a small motor. D16Z6 for those of you that care. Due to lack of power, i figure .CdA is the place to tune this car. The profile of a Del Sol is aerodynamic-vomit. So far I have used the advice of this forum to make a "garden edging air dam" that extends my bumper 6" closer to the ground and I've installed a coroplast partial undertray (from firewall back with a gap in the middle for exhaust). It also has a 1-piece fiberglass hood/fenders/bumper that is wonderfully smooth and has fender flares to reduce my wheel turbulence. My next intended step is to turn the car into a fast-back with a piece of flexible lexan. I am hoping to create a profile that matches the curve of a NACA aerofoil as described in another thread about rear window curves. After that, a rear diffuser to smooth the flow around the gas tank and my incomplete rear-end. Also possibly garden-edge side-skirts. Any suggestions re: fastback design?