Timing
Le Mans Master
Joined: Nov 2003
Posts: 8,004
Likes: 250
From: Tampa Fl
St. Jude Donor '12-'13-'14
What are you commanding? With aftermarket boost applications, total spark is between 9-15. Its not as high as a stock forced induction calibrations. You might have Spark modifier removing some timing
Thread Starter
7th Gear
Joined: Jan 2018
Posts: 7
Likes: 0
I'm not realy sure my tunner set it up maybe I have the torque management pulling some timing .
Racer
Joined: Sep 2006
Posts: 288
Likes: 4
This question isn't really answerable with the provided information. What fuel are you running? What is your Lambda? IAT? ECT? etc... There are situations when that could be good or bad, but with the given information that's impossible to tell. Have you asked your tuner?
Thread Starter
7th Gear
Joined: Jan 2018
Posts: 7
Likes: 0
I'm running 12.7 af wot it goes from 10.1 to 12.7 when i mash the gas yes it' kinda lean .40 psi at the regulator and holds 40 psi under boost iat are 80° if ambent temp is 75 ° timing us 16 ° when at a stop light. Plugs look good no knock or sign of pre ignition I'm running 91 pump gas
Supporting Vendor
Joined: Feb 2009
Posts: 4,421
Likes: 1,430
From: Mesa Az
on 10 psi w/ meth I would expect 9-10 degrees on a 91/meth car. and why the hell are you tuned in speed density!?!?!?! the maf's read to the moon on these cars, please tell me you're not an auto in SD.
__________________
Cordes Performance Racing aka "CPR"
Owner of AZ's premier LSX/LTX motorsports shop
http://cordesperformanceracing.com/
www.facebook.com/cordesperformanceracing.com
joe@cordesperformanceracing.com
480-359-5914
Cordes Performance Racing aka "CPR"
Owner of AZ's premier LSX/LTX motorsports shop
http://cordesperformanceracing.com/
www.facebook.com/cordesperformanceracing.com
joe@cordesperformanceracing.com
480-359-5914
Team Owner
Joined: Jan 2007
Posts: 29,063
Likes: 1,839
From: cookeville tennessee
With no more boost & fueling on this in the car. I would be looking for a diff tuner for sure cause the only reason that tuner is telling you to do SD tune is for him to play & him get more info to help him only on some big HP cars for him not to look so stupid..
Last edited by robert miller; Feb 8, 2018 at 01:40 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski