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S
Scottm
I'm Awesome
·
From
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Joined
Aug 24, 2021
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Monday at 9:05 PM
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S
Scottm
replied to the thread
99 L29 454 build
.
Extreme, the pressure in the manifold is almost always less than ambient. The vacuum level is typically about 15 inches at idle to 24...
May 3, 2024
S
Scottm
replied to the thread
99 L29 454 build
.
Thanks Mang! (See what I did there?) That is so true about the intake. Go back to post 44 of this thread, where I drilled the manifold...
May 3, 2024
S
Scottm
reacted to
Mangonesailor's post
in the thread
99 L29 454 build
with
Like
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I find my truck as a lot of spark knock detected when it's hot, which just simply can be automatically compensated against based off of...
May 3, 2024
S
Scottm
replied to the thread
99 L29 454 build
.
Ok thanks. That's great as long as it can do the obvious, which is reduce timing as engine load and cylinder pressure goes up. I trust...
May 1, 2024
S
Scottm
replied to the thread
99 L29 454 build
.
I'm on something like the 8th trip back up to the tuner. Besides still pinging at wot, it audibly and steadily pings at hway speed 55-65...
May 1, 2024
S
Scottm
replied to the thread
Another 454 Vortec Build Thread - Documenting, Q&A, Help
.
How's the compression? No sense worrying about injectors if it's not healthy.
Apr 29, 2024
S
Scottm
replied to the thread
Another 454 Vortec Build Thread - Documenting, Q&A, Help
.
Ok I see, yes I was trying to say fuel tank pressure sensor, which is what I though OP was asking about.
Apr 26, 2024
S
Scottm
replied to the thread
Another 454 Vortec Build Thread - Documenting, Q&A, Help
.
Here is the full page. FPS started in 98. And I don't know if this is relevant to what you were saying.
Apr 26, 2024
S
Scottm
replied to the thread
Another 454 Vortec Build Thread - Documenting, Q&A, Help
.
Ok, I am trying to understand. You said this: I posted page from the 98 c/k service manual, showing the ftp circuit on the 7.4L...
Apr 26, 2024
S
Scottm
replied to the thread
Another 454 Vortec Build Thread - Documenting, Q&A, Help
.
"Yeah, I'm going to have to go ahead and disagree with ya there..." 1998 c/k factory service manual:
Apr 26, 2024
S
Scottm
replied to the thread
Another 454 Vortec Build Thread - Documenting, Q&A, Help
.
Super, I think they started using a fuel pressure sensor starting in 98. It was an option for me to wire in with the 0411 swap.
Apr 26, 2024
S
Scottm
replied to the thread
Another 454 Vortec Build Thread - Documenting, Q&A, Help
.
Bex, how long should the stock rail and regulator hold pressure? My Holley aftermarket fpr bleeds down pretty fast, but I don't think it...
Apr 26, 2024
S
Scottm
replied to the thread
Another 454 Vortec Build Thread - Documenting, Q&A, Help
.
How bad is the gas? I would siphon it all out.
Apr 23, 2024
S
Scottm
replied to the thread
6.5 to 454 vortec swap
.
Isn't the pushbutton 4wd on 1/2 ton only?
Apr 23, 2024
S
Scottm
replied to the thread
6.5 to 454 vortec swap
.
You will want to swap in the L29's complete wiring harness and ecm. It's completely different from the throttle body wiring. You should...
Apr 22, 2024
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