I got a 68mm STR TB for my LS and it's always getting stuck at 3RPM.... when it does get stuck i stump on the gas once quickly to drop it back down to 1RPM but it idles crazy everytime i do that.... it idles fine at start up -21psi but when the throttle get stuck and i have to stump on it, it idles crazily...what the hell is going on to my car...it's getting me very frustrated....HELP

 

Any STR Fan that might know?????

 

check your throttle cable, mine used to get stuck because the cable would actually jump off of the rotor on the tb.........i bent the bracket on my intake manny that holds the cable and it's just fine now............

 

Its proly because the throttle plate is aluminum and not copper.
I see this all the time. There are places that will make you a copper replacement butterfly.
Just don’t let off the gas so hard.

I don’t know why your idle is screwy, try adjusting the TB screw that prevents the plate from closing all the way.

 

I had a STR 70mm TB..... they are kinda wierd, you have to break it in kinda before it works right. They are good after you work all the bugs out but I had the same problems that you have.

 

thanks guys for all your advice....i try starting what you guys said and mess with it some more....thanks

 

I have 68mm and I never had any problems

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedEG6 &raquo;</TD></TR><TR><TD CLASS="quote">I had a STR 70mm TB..... they are kinda wierd, you have to break it in kinda before it works right. They are good after you work all the bugs out but I had the same problems that you have. </TD></TR></TABLE>

yeah, i had to break mine in, too..............

 

only thing I can think of is maybe the throttle plate is rubbing and staying ever so slightly open causing it to stick.. check it out and maybe sand it down/lubricate it?

it doesnt take much to make it idle at 3k..

 

THAT IS SO TRUE......I did that today and it works perfect.....i sand it down... kind of like reporting it but with 320grid wet-sandpaper.....and sand around the butterfly a little bit....works perfect..thanks guys for all you input...