LT1 6 Speed idle?
Thread Starter
Le Mans Master
Joined: Oct 2002
Posts: 7,178
Likes: 1
From: Bahston Mass.
LT1 6 Speed idle?
Those of you with 6 Speeds, what's your idle at?? Mine sits right at 1,000 RPMS, and I'm thinking that's a little high??? If so, is there a solution?? This was the same before I had the TB done, too.. Still at 1k.
Thread Starter
Le Mans Master
Joined: Oct 2002
Posts: 7,178
Likes: 1
From: Bahston Mass.
Re: LT1 6 Speed idle? (rxalot)
Well, mine's nice and smooth, but it's right on the 1k line. I figured, being a 6 speed, it should be down around 6-700?? I definitely could be wrong, though!!
Not to mention, I HATE the factory tach.. It's slow, and unresponsive..
Not to mention, I HATE the factory tach.. It's slow, and unresponsive..
Melting Slicks
Joined: Jul 2003
Posts: 3,413
Likes: 138
From: Texas
Re: LT1 6 Speed idle? (JB666)
My 90 idles around 900ish. When it's real warmed up it may drop to about 800 but never really lower.
Crap I just saw this is a freakin LT1 thread, oh well I'm staying in.
[Modified by ZF Six, 8:44 PM 5/19/2004]
Crap I just saw this is a freakin LT1 thread, oh well I'm staying in.
[Modified by ZF Six, 8:44 PM 5/19/2004]
Race Director
Joined: May 2001
Posts: 14,165
Likes: 9
Re: LT1 6 Speed idle? (JB666)
If you've still got a stock cam, 1000 is way too high. I believe once fully warmed up the commanded idle speed is 700 or 750. Even with my cam mine is set to idle at something like 850. Gives a nice nasty soundling lope to it. :D
If your idle is too high your IAC is probably completely closed or stuck. If it's closed and you still have the high idle it means that your throttle blades are held open too far by the minimum adjustment screw. Crank it back a little bit and let the IAC do it's job of maintaining your idle.
If your idle is too high your IAC is probably completely closed or stuck. If it's closed and you still have the high idle it means that your throttle blades are held open too far by the minimum adjustment screw. Crank it back a little bit and let the IAC do it's job of maintaining your idle.
Team Owner
Joined: Sep 2003
Posts: 25,295
Likes: 4
From: I'm the walkin dude I can see all of the world...
St. Jude Donor '03
Re: LT1 6 Speed idle? (ZF Six)
My 90 idles around 900ish. When it's real warmed up it may drop to about 800 but never really lower.
Crap I just saw this is a freakin LT1 thread, oh well I'm staying in.
[Modified by ZF Six, 8:44 PM 5/19/2004]
Crap I just saw this is a freakin LT1 thread, oh well I'm staying in.
[Modified by ZF Six, 8:44 PM 5/19/2004]
GET OUT!!!!! You dont belong here!!!!! :jester
Oh and after tons and tons of work mine idles at 700-800. :boxing
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Thread Starter
Le Mans Master
Joined: Oct 2002
Posts: 7,178
Likes: 1
From: Bahston Mass.
Re: LT1 6 Speed idle? (VictorRussell'92)
Well, when I swapped my TB, I noticed that the IAC valve was filthy.. Would I be jumping the gun by replacing it??
Also, my Vortex Rammer box is pretty warped, and isn't making a seal tot he shroud - I don't think that has anything to do with it though.
Also, my Vortex Rammer box is pretty warped, and isn't making a seal tot he shroud - I don't think that has anything to do with it though.
