LT-1 performance
Le Mans Master
Joined: Nov 2004
Posts: 7,850
Likes: 142
From: Tampa, Fl.
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A visual indicator of this is to look for chipping at the top of the valve stem. (Guess where the chips go!).
Chas
Thread Starter
Burning Brakes
Joined: Aug 2006
Posts: 792
Likes: 10
From: Grafton MA
Thanks I'll add this to the list of things to check...will check into it after the compression test.
One other thing I noticed this weekend is that someone replaced the exhaust with the standard small block exhaust system. The other lt-1 has the correct exhaust that gets wider a few inches down from the manifolds. The slower car doesn't have this, it has the smaller pipes. How big of an impact on performance would this have?
One other thing I noticed this weekend is that someone replaced the exhaust with the standard small block exhaust system. The other lt-1 has the correct exhaust that gets wider a few inches down from the manifolds. The slower car doesn't have this, it has the smaller pipes. How big of an impact on performance would this have?
Le Mans Master
Joined: Dec 2003
Posts: 5,727
Likes: 38
From: Fremont CA
I run Corvette Central RPO N-11 "off-road" set-up on the stocker LT-1. The super fast one has a custom 304 Stainless Steel exhaust system. I know if I put headers and good exhaust on the 70 roadster it would pick-up around 30-45HP but no maintenance issues with the exhust on it right now. I would look up the Corvette Central system if you like a stock looking system that performs well and sounds right.
Video with sound bite: http://www.youtube.com/watch?v=ZAk-AQPeyuA
Video with sound bite: http://www.youtube.com/watch?v=ZAk-AQPeyuA
