fast quest. on idle

[tubby]

is there a way to set a disired rpm with fast? i was changing idle spd vs. cool temp. but it didn't seem to make any diff.
also if anyone has some tips on getting a big cam(.258/.268 at .05 114) low vacuum (10 at 900 rpm) setup to idle i'd appreciate it. (lt1 383 motor)
thanks

 

[bobc455]

Most system can control idle speed.

What is your IAC position? If your throttle blades are being held open by a setscrew, then the IAC cannot reduce the idle speed any further...

-Bob Cunningham
bobc@gnttype.org

 

[tubby]

sorry, i should have stated that the car wants to drop to far down. like 600-700 where it wont idle. i want to keep it at 900-1000. couple of people have suggested turning the screw to open the throttle blades to the desired result.

 

[bobc455]

That is my favorite method- turn the idle screws so they just about hold idle. On my car at idle, the IAC kinda dances around between 10 & 12, which means I have it "right there".

If your idle speed drops down a lot when you put it in gear (i.e. tight convertor), you might want the idle screw to hold the engine speed even just a bit higher (950 actual in neutral, with a 900 setpoint).

Just my thoughts...

-Bob Cunningham
bobc@gnttype.org

 

[tubby]

thanks, i know this is a buick site so i really appreciate the help with my lt-1.

you guys rock!!