Air flow
Thread Starter
Instructor
Joined: Oct 2014
Posts: 162
Likes: 1
From: Steinbach
Air flow
hey,
so I've been doing some tuning and been pretty successful .
my question is: gms, I'm only hitting about 205. Is this normal?
i don't use all the mass air flow tables .
1988 , headers ported plenum 1.6 rocker, 3.54 rear
thx
so I've been doing some tuning and been pretty successful .
my question is: gms, I'm only hitting about 205. Is this normal?
i don't use all the mass air flow tables .
1988 , headers ported plenum 1.6 rocker, 3.54 rear
thx
Race Director
Joined: Mar 2015
Posts: 15,926
Likes: 579
On the digital temp gauge if you have one? Analogs lie my 94 runs under 200 on the freeway and the fans start at 225. They do run hotter than most. I pulled my radiator and cleaned it when mine was over 200.
Safety Car
Joined: Sep 2001
Posts: 4,157
Likes: 554
From: Glenbeulah Wi
This is in reference to 205 grams/sec on the MAF when you are data logging correct? That should be normal, you will not hit 254 gr/sec until you have mods that are near 350 HP.
Safety Car
Joined: Sep 2001
Posts: 4,157
Likes: 554
From: Glenbeulah Wi
It is good that it does not read much higher because it allows you to do additional modifications before the MAF hits the max reading of 254 gm/sec and then the tuning becomes less consistent.
Melting Slicks
Joined: Aug 2003
Posts: 3,399
Likes: 395
From: Lakeville MI
205 gm/sec peak air flow sounds about right for the listed mods...maybe 230-240 rwhp.
However, if you have edited the MAF tables while tuning, you have changed the MAF calibration, so all bets are off with respect to accuracy.
With original tuning 206 gm/sec is 4.39 volts.
You can use your WBO2 to recalibrate the MAF so that the WBO2 matches the target AFR with neutral fuel trims (assuming the injector settings and fuel pressure are also correct).
To do this efficiently, you need to include your WBO2 0-5 v output into the data stream so that signals can be logged simultaneously.
However, if you have edited the MAF tables while tuning, you have changed the MAF calibration, so all bets are off with respect to accuracy.
With original tuning 206 gm/sec is 4.39 volts.
You can use your WBO2 to recalibrate the MAF so that the WBO2 matches the target AFR with neutral fuel trims (assuming the injector settings and fuel pressure are also correct).
To do this efficiently, you need to include your WBO2 0-5 v output into the data stream so that signals can be logged simultaneously.
Thread Starter
Instructor
Joined: Oct 2014
Posts: 162
Likes: 1
From: Steinbach
I have adjusted the maf tables. Lots .
Im listening and very interested in adding the wideband signal ,
im using tuner pro and data master .
my wideband has an output for it , just don't know where to hook up
thx
Im listening and very interested in adding the wideband signal ,
im using tuner pro and data master .
my wideband has an output for it , just don't know where to hook up
thx
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