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5doorracer 12-10-2012 09:04 PM

SVT throttle body options?
So looking around and only finding 67mm throttle bodies. I can't see 2mm making any difference. How can I get a bigger throttle body on a SVT intake? I can bore it out but might be any issue with iacv. What about a remote IACV?

StephenElsbree1986 12-10-2012 09:26 PM

Stock TB is 62-63mm At opening, aftermarket TB are measured at the blade... Seeing how there 1-2 mm clearance from the blade on each size you're looking at a 70mm TB compared to stock, there been so many recent thread about this anyways, just look stuff up.

tukaniSVT 12-11-2012 06:48 AM

Yup you can definitely search for it and read about other's experience on the TB.

But honestly, even shaving your stock TB results in some better pick up. And that's people on here have shaved their stock TB to meet that 65mm inlet.

The 67 feels great. And there was a manufacturer that was making the 70, but I haven't seen that rare product in a while.


StephenElsbree1986 12-11-2012 10:18 AM

But IIRC the 70mm where basically mustang TB, and we lose CC with the 70MM only if I remember correct... But I just went over this in a recent post, you will not gain and TQ/HP with a TB upgrade because the inlet on the manifold is restrictive, some people have ported the inlet side on the manifold grants more air is more power but, the actual gains <shrug> who knows maybe its only 1-2 hp/tq! No one done a dyno back to back and within 1-3 hp/tq might go unnoticed

5doorracer 12-11-2012 02:24 PM

First I did search and can only find zetec 70mm tb, but a bigger throttle body with cleaned ports on the intake and head should yield results with the SVT. The issue I am seeing is the IAC ports are different between the zetec and svt if I am not correct.

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