PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

What to values do you expect to see?

Thread Tools
 
Search this Thread
 
Old Jul 17, 2005 | 09:11 PM
  #1  
y-man's Avatar
Thread Starter
Staging Lane
 
Joined: Nov 2001
Posts: 60
Likes: 0
From: Saginaw, TX
Question What to values do you expect to see?

I just finished installing my new motor & turbo and cranked it up for the first time today. I was logging data, but I'm not sure what I should expect to see in terms of Advance, MAF, MAP, AFR, etc. I want to make sure everything is working okay before I take it to break in the motor. Too much money & time invested now to cut corners. Will the PCM still have to "relearn" before my values look correct/system starts running correctly? If so, how long does this take?

If anyone can provide some insight on what to expect or point me in the right direction I'd appreciate it.

Here are some highlights:

-Advance was at around 21 degrees at idle and would go up to 41 when the throttle was lightly pressed (TP= 8-10%)

-MAF stayed arond 1.3 #/min at idle (800 RPM)

-MAP was around 7.2# at idle

I am a little concerned that after starting with an AFR of 10.6 it ramped to 13.0 and then went to 14.6 when it went to closed loop mode. That's probably my biggest concern. I have plenty of fuel pressure.

What other parameters should I be monitoring?

Thanks for all the help!
Matt
Reply




All times are GMT -5. The time now is 12:57 PM.

story-0
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-1
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-2
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-3
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-4
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-5
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-6
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-7
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-8
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-9
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE