#115164 - 12/03/08 10:08 AM
another go fast mod?
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Registered: 11/05/04
Posts: 2108
Loc: Livonia, MI
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ok have you ever been drivein down the highway and looked at the back of a GP and watched the bumper kinda shake... like the sides of the bumper? im thinking the back bumper is cathing a ton of air the way it wraps down and back around liek it does?! that would be a ton of drag on a car thats racing now i just gotta figure out a way to fix that
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#115165 - 12/03/08 10:24 AM
Re: another go fast mod?
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Member
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Registered: 12/15/05
Posts: 5286
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Try getting a piece of plastic to go from the gas tank to the contour of the rear bumper. That should force the turbulence out of the bumper and back down onto the street. Problem: Will that force the vehicle into needing more downforce in the rear? How are you going to get that downforce without needing a shopping cart wing?
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WizAire CAI w/9" K&N & HV3, 2.5" d/p w/h/f cat, Cobra CB, PowerSlot slots w/Hawk HPS, GR-2s, GMPP handling kit, NextLevel STBs, Pilot Sport A/S Plus tires. 98 L36/MM5 RaC
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#115166 - 12/03/08 10:26 AM
Re: another go fast mod?
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Registered: 12/15/05
Posts: 5286
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oh! and how to handle the heat from your exh. If not taken care of, you will melt your "skidplate".
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WizAire CAI w/9" K&N & HV3, 2.5" d/p w/h/f cat, Cobra CB, PowerSlot slots w/Hawk HPS, GR-2s, GMPP handling kit, NextLevel STBs, Pilot Sport A/S Plus tires. 98 L36/MM5 RaC
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#115167 - 12/03/08 10:27 AM
Re: another go fast mod?
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Member
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Registered: 11/05/04
Posts: 2108
Loc: Livonia, MI
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i just gotta make sure the exaust dosent melt w/e i use... i was thinking cutting flaps out and putting them on hinges so when the air pressure builds up they blow open as much as they need to and bam no resistace
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#115168 - 12/03/08 10:32 AM
Re: another go fast mod?
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Registered: 12/15/05
Posts: 5286
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hmmmmm, louvered bumpers? that WOULD be kinda cool, if you can keep a clean look.
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WizAire CAI w/9" K&N & HV3, 2.5" d/p w/h/f cat, Cobra CB, PowerSlot slots w/Hawk HPS, GR-2s, GMPP handling kit, NextLevel STBs, Pilot Sport A/S Plus tires. 98 L36/MM5 RaC
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#115169 - 12/03/08 10:48 AM
Re: another go fast mod?
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Member
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Registered: 04/08/08
Posts: 2647
Loc: Iowa City, IA
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Problem: Will that force the vehicle into needing more downforce in the rear? How are you going to get that downforce without needing a shopping cart wing? The rear downforce is called "torque". I don't think you'll be going fast enough to notice a huge difference, just like a spoiler.
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'99 GTP, L36 bottom, XP cam, Headers, 3.29 gears, FWI, Powrtuner
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#115171 - 12/03/08 11:35 AM
Re: another go fast mod?
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Registered: 04/18/05
Posts: 8901
Loc: Bradenton, FL
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A guy (John C) made this already. It didn't net him any gains
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Corey Smith
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#115172 - 12/03/08 12:05 PM
Re: another go fast mod?
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Member
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Registered: 11/05/04
Posts: 2108
Loc: Livonia, MI
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does anyone have a link?.....i dont go to club gp like at all so i wouldent know where to look...
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#115173 - 12/03/08 04:02 PM
Re: another go fast mod?
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Registered: 08/21/07
Posts: 1545
Loc: Westport, IN
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Might sound stupid and obviously it's winter... but next year why don't you run it down the track bumperless and compare that time with a run while the bumper is on and just see if you net any gains before putting all the work in a possible meaningless mod and wasting money. ...just a thought!
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#115176 - 12/03/08 04:20 PM
Re: another go fast mod?
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Member
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Registered: 09/26/06
Posts: 691
Loc: Philadelphia, PA
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well, i know its not the bumper of choice, but i think a se bumper would reduce the supposed drag, wouldnt it?
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03 GTP: 06 seats-roof rails-fbody brakes-limited edition gauges-slp spoiler-gmpp exhaust-06 vette tips-
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#115177 - 12/03/08 04:30 PM
Re: another go fast mod?
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Member
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Registered: 01/08/07
Posts: 6026
Loc: Des Moines ,Iowa
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maybe you should plate everything on the bottom of the car too so its smooth on the bottom lol jpjp
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