70mm or 75mm TB for blown 00 GT

coolguy620 · 08-10-2002, 11:36 AM

what do you guys think.. a 70mm or 75mm Throttle Body? i definately am getting an accufab.. heres just a few things done to my car:

vortech sq-trim (8 psi)
90mm lightning maf
42 # injectors
custom tuned chip
full exhaust

+ tons of suspension & tranny work

long block and intake manifold is untouched

car runs 11.9's on street tires with octane booster

i guess the only other question i had will a 75mm even fit on the stock manifold? i know it will bolt to it but the inside of the manifold looks pretty small.. so in that sense, will a 70 or 75 even make a difference in power other than the 70 having a better throttle response? any advise will help...

Hammer · 08-10-2002, 06:15 PM

The 70mm will be the way to go...

I'm pretty sure that the 75mm would require some sort of "port matching" work....

08-10-2002, 11:36 AM	#1
coolguy620 Registered Member Join Date: Mar 2002 Location: Austin, TX Posts: 18	70mm or 75mm TB for blown 00 GT what do you guys think.. a 70mm or 75mm Throttle Body? i definately am getting an accufab.. heres just a few things done to my car: vortech sq-trim (8 psi) 90mm lightning maf 42 # injectors custom tuned chip full exhaust + tons of suspension & tranny work long block and intake manifold is untouched car runs 11.9's on street tires with octane booster i guess the only other question i had will a 75mm even fit on the stock manifold? i know it will bolt to it but the inside of the manifold looks pretty small.. so in that sense, will a 70 or 75 even make a difference in power other than the 70 having a better throttle response? any advise will help... __________________ 00' GT, vortech sq-trim, full exhaust, 90mm maf, 42#r's, megabyte jr.'s, custom diablo chip.. + too much more too list.. run's high 11's

08-10-2002, 06:15 PM	#2
Hammer AKA "Dr. Evil" Join Date: Feb 1999 Location: South Fork Ranch Posts: 1,721	The 70mm will be the way to go... I'm pretty sure that the 75mm would require some sort of "port matching" work.... __________________ Uncle Sam "What the hell is up with all the gauges? Calling Captain Kirk, your ride awaits... Phasers on stun...."

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