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View Full Version : Biggest TB


Lazarus
06-17-2003, 02:55 PM
What's the largest we can bore our TB without having to do any major mods? I've heard of the one 70mm but the need for the stage 3 cam an all was kind of a turn off. but I know that one site has the pre bored TB with the core charge but they don't tell the bore.
Fishboy55
06-17-2003, 03:45 PM
I think it's 62mm. After you go beyond that you have sizing issues. I believe the Proflows are bored to 62mm

Chip
HeadAche
06-18-2003, 05:19 PM
I think it's 62mm. After you go beyond that you have sizing issues. I believe the Proflows are bored to 62mm

Chip

your exactly right chip, i found that out today from a couple guyz i know that own 3g eclipses..
Lazarus
06-18-2003, 07:37 PM
good deal back to the shop...not yet waiting on a package from australia first :twisted:
PharmEcis
06-19-2003, 12:26 AM
Neal Peifer on the 2g and 3g boards got his bored out to 63mm. Honestly I think from inspecting mine thats about as big as you can get. I'll let you guys know what my guy gets mine to.
Alister_McRae
06-19-2003, 03:11 AM
you can get a quad system that have four 40mm butterfly throttle bodies which equal up to 360mm of butterfly area.
HeadAche
06-19-2003, 05:10 PM
you can get a quad system that have four 40mm butterfly throttle bodies which equal up to 360mm of butterfly area.

Only reason to go to a complete quad system, is if your building a complete race motor.. ITs not ideal for a daily driver, the gas it would suck would be sick, you would get like 8-10mpg and with a quad system you need major internals, upgraded fuel system, not including to run the air to fuel ratio you cant just use a S-AFC you would need a Halteck system w laptop capabilities.