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#1
08-30-2009, 08:29 PM
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Wrong diameter exhaust spacer
I needed to move my turbonetics (ebay special) manifold out from the head 1 inch to accommodate a GT3076R. In haste I used my Cometic gasket as a stencil. The ports are now 2-3mm too big all the way around. DUMBASS!!!
Will this cause carbon to build up and flake off affecting the wideband O2 sensor or anything else? Is it going to cause turbulence that will negatively change flow? Should I port match the head and manifold?
__________________
95 Talon Tsi AWD 5spd 2.4L4G64 6bolt JE8.5EagleTorqueplatedFully ballanced-balanceshaftARP Ferrea1mm 1Ghead ported/polished HKS264/272 fidanzagears turbonetics copy polished GT3076R VbandTial38mm cometic prothane mounts SARD850 stage4 Compclutch+flywheel 3"exh Walbro255 rewired Innovate wideband O2 ForgeBOV Autronic standalone innovative wideband[url=http://img494.imageshack.us/my.php?image=talonandhelicopter5as.jpg] 
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#2
08-30-2009, 09:06 PM
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Re: Wrong diameter exhaust spacer
Yes carbon will build up on the edges a little. I doubt it would hurt anything, but may cause turbulance in the exhaust. I would just port the exhaust manifold to match it. You dont need to port the head.
__________________
98 Eclipse GS Turbo Megasquirt 2 - Holset HY35 Turbo - Built motor - P&P Head and Intake - 3" Turbo back - FMIC - Greddy RZ BOV - Walbro 255 - Aeromotive AFPR - 650cc Injectors - Fidanza Flywheel - Zoom clutch - 13" Cobra Front Brakes - AEM WB - Devilsown meth injection - 3.55 Final Drive gear ratio 1981 Chevy Scottsdale 1987 Nissan 300zx - Chump Car 2001 BMW 325i - DD
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#3
08-30-2009, 09:11 PM
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Re: Wrong diameter exhaust spacer
building another one would cost another 100.....Is it worth it?
__________________
95 Talon Tsi AWD 5spd 2.4L4G64 6bolt JE8.5EagleTorqueplatedFully ballanced-balanceshaftARP Ferrea1mm 1Ghead ported/polished HKS264/272 fidanzagears turbonetics copy polished GT3076R VbandTial38mm cometic prothane mounts SARD850 stage4 Compclutch+flywheel 3"exh Walbro255 rewired Innovate wideband O2 ForgeBOV Autronic standalone innovative wideband[url=http://img494.imageshack.us/my.php?image=talonandhelicopter5as.jpg]
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#4
08-30-2009, 09:47 PM
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Re: Wrong diameter exhaust spacer
Not if you can easily port the exhaust manifold to match the spacer. If the manifold has already been ported than it may make the flange to thin to seal if you have to port it more. Just look at it and see if it can be ported or not.
__________________
98 Eclipse GS Turbo Megasquirt 2 - Holset HY35 Turbo - Built motor - P&P Head and Intake - 3" Turbo back - FMIC - Greddy RZ BOV - Walbro 255 - Aeromotive AFPR - 650cc Injectors - Fidanza Flywheel - Zoom clutch - 13" Cobra Front Brakes - AEM WB - Devilsown meth injection - 3.55 Final Drive gear ratio 1981 Chevy Scottsdale 1987 Nissan 300zx - Chump Car 2001 BMW 325i - DD
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#5
09-03-2009, 03:20 AM
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Re: Wrong diameter exhaust spacer
Thanks.
__________________
95 Talon Tsi AWD 5spd 2.4L4G64 6bolt JE8.5EagleTorqueplatedFully ballanced-balanceshaftARP Ferrea1mm 1Ghead ported/polished HKS264/272 fidanzagears turbonetics copy polished GT3076R VbandTial38mm cometic prothane mounts SARD850 stage4 Compclutch+flywheel 3"exh Walbro255 rewired Innovate wideband O2 ForgeBOV Autronic standalone innovative wideband[url=http://img494.imageshack.us/my.php?image=talonandhelicopter5as.jpg]
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