LT1 396 engine build
Race Director
Joined: Jan 2012
Posts: 17,062
Likes: 166
From: United States
Sweet build. I need to look the piston company up, as I want ti rebuild/bore my 396LT1 out and put standard rings in it, and a smallet cam (duration is 230 to 240 int/exh).
Oil consumption has always been shitty with low tension rings.
But fun factor in my 93 Ruby is awesome.
Oil consumption has always been shitty with low tension rings.
But fun factor in my 93 Ruby is awesome.
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,108
Likes: 126
From: S.L.C. UT
I could see on the pistons it was using oil. I changed the oil right before I started driving it. And it was a quart low after driving it 1000 miles. But it wasn't enough you could see clouds of oil coming out the tailpipe.
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,108
Likes: 126
From: S.L.C. UT
Someone changed the exhaust on the car before I got it. It had manifolds with dual 3" pipes with a crossover pipe and some loud flowmaster mufflers. I put on headers and hi flow cats.Then I took off the flowmasters and put stock mufflers on it. It actually ran the same, but was alot quieter. So now it's headers, hi flow cats, dual 3" with a crossover, then it goes into the stock mufflers. Its kind of different, it's a pretty fast car, but its really pretty quiet. You just expect it to be louder for as fast as it is. The stock LT mufflers flow really well. I think the reason if people change them is they want a different look, or a different sound.
Last edited by tpi 421 vette; Nov 9, 2021 at 04:19 PM.
Race Director
Joined: Jan 2012
Posts: 17,062
Likes: 166
From: United States
I was contemplating putting the flowmaster system back on. I currently have no cats ( would like to put some on), 396LT1 and DRM 1 3/4 long tubes with oem cat back. Sounds good, imho, and at 54 years old, might be the right way to keep it..
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Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,108
Likes: 126
From: S.L.C. UT
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,108
Likes: 126
From: S.L.C. UT
Last edited by tpi 421 vette; Nov 9, 2021 at 09:01 PM.
Team Owner
Joined: Sep 2001
Posts: 62,160
Likes: 1,733
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
I'm surprised it only took 30lb/hr, mine runs on 42s with the Walbro 255.
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,108
Likes: 126
From: S.L.C. UT
I let PCM for less make the call on injector sizing since they are doing the tune. I told them the car will mainly be used at high elevation. So up here, we don't need as much injector since we're down on power because of the high DA
