idle on sr

[Carson]

is there any way to adjust the idle on a red top sr20? I idle at about 1100, and I want it lower; or is this a good idle speed?

[uiuc240]

the idle control valve is adjusted by a screw that can be accessed between the intake runners on the left hand side of the engine. it's a plastic screw...look for it. loosen to raise idle, tighten to lower it. there's more to it than that though...search.

Eric

[srpowereds14]

Plastic??? mine is metal... well turn it clockwise to lower the idle its in between the intake mani runners in the middle big screw.

[Fibercus]

Originally posted by srpowereds14
Plastic??? mine is metal... well turn it clockwise to lower the idle its in between the intake mani runners in the middle big screw.

Go thru the set timing process, verify the timing is correct... IACValve would be a last resort wouldnt it? Becuase you also have the throttle body adjustment

[uiuc240]

timing, yes.

but the IACV is the proper method for setting idle. the throttle body should be CLOSED at idle. that's the whole point of the IACV...it takes air and routes it AROUND the throttle plate.

Eric

[Fibercus]

Originally posted by uiuc240
timing, yes.

but the IACV is the proper method for setting idle. the throttle body should be CLOSED at idle. that's the whole point of the IACV...it takes air and routes it AROUND the throttle plate.

Eric

Well, his idle is above the target. TB should be closed, thats why im saying to check it out... maybe its open some *shrug*

[uiuc240]

Originally posted by Fibercus
Well, his idle is above the target. TB should be closed, thats why im saying to check it out... maybe its open some *shrug*

word.

but my $5 just says the IACV needs some tightening.

E

[Cheng]

Yea, Mine is at about 900-1200 majority of the time its a 900...can any help me out here that why it would variey. Timing everything is ok...But, hey when you mess with the throttle position don't you mess up the timing as well?