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Scottm's latest activity
S
Scottm
replied to the thread
99 L29 454 build
.
What is PE? power enrichment? Open loop?
Apr 4, 2024
S
Scottm
replied to the thread
99 L29 454 build
.
Ok thanks! The latest tune came back last week. They reduced wot timing to 22-24deg and kept the cruise part throttle timing up where it...
Apr 3, 2024
S
Scottm
replied to the thread
Lifter Recomendations For Cam Setup
.
I wonder if that's a problem on the L29 big block. I have a persistent valvetrain noise that I can't figure out, running low mile stock...
Apr 2, 2024
S
Scottm
replied to the thread
Lifter Recomendations For Cam Setup
.
The stock lifters are limited on lift before they run into the stock dog bone retainers. Make sure any aftermarket replacements can...
Mar 26, 2024
S
Scottm
replied to the thread
12200411 PCM swap for 1996 to 2000 GMT400 trucks
.
two threads down https://www.gmt400.com/threads/0411-pinout-contact-for-lextech.61796/
Mar 25, 2024
S
Scottm
replied to the thread
New member. New tune. Blown engine.
.
I downloaded it and tried, but my efi live scan app said it's not a valid efi live file.
Mar 23, 2024
S
Scottm
replied to the thread
Electronic Fan Clutch Information
.
How did you adapt the clutch to your pump?
Mar 23, 2024
S
Scottm
replied to the thread
New member. New tune. Blown engine.
.
Sorry to hear. The big ends of the L29 7.4 rods are not put together well. My bearing inserts looked like they had acne from small metal...
Mar 23, 2024
S
Scottm
replied to the thread
Electronic Fan Clutch Information
.
Is there a year on the trailblazer clutch that still has the 4 bolt water pump mount? And what is that big plastic fan?
Mar 23, 2024
S
Scottm
replied to the thread
Electronic Fan Clutch Information
.
What was your final verdict on the pwm fan? I was wondering if the trailblazer clutch could be operated in a straight on/off manor...
Mar 22, 2024
S
Scottm
replied to the thread
12200411 PCM swap for 1996 to 2000 GMT400 trucks
.
Thanks! So 1.2 x 242 is only 290 crank hp at 4900, a little disappointing, since that's the stock L29 rating.
Mar 19, 2024
S
Scottm
replied to the thread
99 L29 454 build
.
Got it back again today after asking them to limit timing to 28 at wot. It was actually still getting 30, but that was ok for a long...
Mar 19, 2024
S
Scottm
replied to the thread
12200411 PCM swap for 1996 to 2000 GMT400 trucks
.
Cool! How many grams is 32 lb/minute?
Mar 19, 2024
S
Scottm
replied to the thread
99 L29 454 build
.
Finally made logs today including wide open. BB did advance the wot timing alright, all the way from 22 deg to 34. And.. It pings and...
Mar 10, 2024
S
Scottm
replied to the thread
99 L29 454 build
.
I have not made data logs yet, plan to today, so I don't know for sure if they advanced wot timing or not. It does need to stop pinging...
Mar 10, 2024
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