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View Full Version : 70mm Single Blade Throttle Set Up Trouble


Feast Japan
06-15-2011, 06:39 AM
Although this relates to SR20, the Q goes out to any owner that has mounted an aftermarket large bore, 70mm..ish throttle body.

So new 70mm TB is mounted, TP voltage set correct. On start up the idle is way up around 2000 RPM. Idle set screw is backed out completely and I turned in the ACC screw to help lower it. But RPM is still bloody high.

Bit stumped on this. All I can really think of is that the TB needs a small hole drilled into it or perhaps the blade is just not right.

Any idea's guys?
TB is generic one offered here in Japan. Complete with adapter etc.

Sileighty_85
06-15-2011, 10:20 AM
TB is probably cracked open or you got a vac leak after the TB