FAST 78mm Throttle Body Question
Thread Starter
Joined: Jul 2005
Posts: 1,264
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From: Scarborough, Maine
FAST 78mm Throttle Body Question I just picked up an almost new FAST 78mm throttle body. I know a stock ported throttle body will work just as well but I got a hell of a deal on this and couldn't pass up the chance to get it.
I noticed the FAST78 doesn't have a hole drilled in the throttle blade like a stock throttle body, but I did notice if I hold it up to a light I can see about +/-.010" clearance all the way around the throttle blade when closed. Is this how they can get away without a hole in the blade?
Also, is it normal for the throttle blade to open a little more than wide open? It looks like it goes a few degrees beyond, but it may be my imagination.
Is there anything else I should know about this throttle body compared to a stock one?
Thanks for any help.
I noticed the FAST78 doesn't have a hole drilled in the throttle blade like a stock throttle body, but I did notice if I hold it up to a light I can see about +/-.010" clearance all the way around the throttle blade when closed. Is this how they can get away without a hole in the blade?
Also, is it normal for the throttle blade to open a little more than wide open? It looks like it goes a few degrees beyond, but it may be my imagination.
Is there anything else I should know about this throttle body compared to a stock one?
Thanks for any help.
Last edited by ss1; Dec 10, 2012 at 03:24 PM.
