Aerodynamic under trunk just forward of rear bumper?
02-07-2011, 04:03 PM
#1
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Aerodynamic under trunk just forward of rear bumper? How much benefits is smoothing out under the rear trunk of the car just forward of the rear bumper?
I have removed the rear trunk well (T-top well) of my 4th gen and there is a large void in front of the bumper. It looks like the bumper is hanging down like a scoop.
I am working on closing that up and fairing it in to the bumper.
Has anyone see any real difference (ET/MPH) with closing it up and fairing it in. It will probably cost about 15 to 20 lbs in aluminum to fair it in.
I have removed the rear trunk well (T-top well) of my 4th gen and there is a large void in front of the bumper. It looks like the bumper is hanging down like a scoop.
I am working on closing that up and fairing it in to the bumper.
Has anyone see any real difference (ET/MPH) with closing it up and fairing it in. It will probably cost about 15 to 20 lbs in aluminum to fair it in.
02-08-2011, 07:14 AM
#6
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From my RR raceing experiance the only real mistake I see that you made was you did'nt extend it past the rear bumper a little. That's where the real benefit of a rear underbody comes in is when you cut the air off clean on the back of the car.
02-08-2011, 03:37 PM
#7
I made one really nice on my GTP. it went around the exhust tips in the rear bumper, like on a trans am. And had room for the muffler cases too, I posted some pics a few years ago here in another thread about this Demonicbird (Brandon) posted his he made with pics too.
