fuel injectors
Melting Slicks
Joined: Apr 2001
Posts: 2,115
Likes: 221
From: Ca.
Re: fuel injectors (grapeknutz)
why do some people say they used them and they work fine as a stock replacement
Yeah whats up with that? :iagree:
Yeah whats up with that? :iagree:
Melting Slicks
Joined: May 2001
Posts: 3,270
Likes: 26
From: Winchester VA
Cruise-In V Veteran
Re: fuel injectors (6spd)
The ford injectors 24# rating is achieved at a lower fuel pressure than that of your original injectors. I don't know how well the PCM can compensate for the additional fuel w/out reprogramming. Many people using them as stock replacements probably have adjustable fuel press. regulators.
Le Mans Master
Joined: Nov 2002
Posts: 7,080
Likes: 0
From: Corvette valley Georgia
St. Jude Donor '06
Re: fuel injectors (drive it)
why do some people say they used them and they work fine as a stock replacement
Yeah whats up with that? :iagree:
If your ecm can compensate enough for the increased flow, then it will run OK, and you may not notice it. However on a scan the blms will be rich-which effects the calcs for wot etc. And most of the time I've seen the blms maxed at 108-it can no longer compensate and then it's really rich; won't pass smog/ decreased mileage/power.
Yeah whats up with that? :iagree:
If your ecm can compensate enough for the increased flow, then it will run OK, and you may not notice it. However on a scan the blms will be rich-which effects the calcs for wot etc. And most of the time I've seen the blms maxed at 108-it can no longer compensate and then it's really rich; won't pass smog/ decreased mileage/power.
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
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Drifting
Joined: Mar 1999
Posts: 1,931
Likes: 1
From: Norcross GA
Re: fuel injectors (grapeknutz)
Do you NEED a custom chip,.. no. Would it help you get down the strip faster, yeah.
Your tuning will be off a little,... IF you don't spend a whole lot of time at WOT, so what.
FMS injectors are rated at 39 psi. Also, the Ford injectors are slower than the GM ones. To fine tune them, you should change the Inj. Offset vs. Battery
Voltage to a higher value.
The advertised Flow Rate is for 100% duty cycle (full ON).
Useage of the injector should not exceed 80% duty cycle.
FMS injectors are rated at 39psi, GM injectors are rated at 43psi.
Inj. Size = sqrt(Your_Fuel_PSI/Rated PSI) * rated Inj. Size
Knock yourself out,...
Your tuning will be off a little,... IF you don't spend a whole lot of time at WOT, so what.
FMS injectors are rated at 39 psi. Also, the Ford injectors are slower than the GM ones. To fine tune them, you should change the Inj. Offset vs. Battery
Voltage to a higher value.
The advertised Flow Rate is for 100% duty cycle (full ON).
Useage of the injector should not exceed 80% duty cycle.
FMS injectors are rated at 39psi, GM injectors are rated at 43psi.
Inj. Size = sqrt(Your_Fuel_PSI/Rated PSI) * rated Inj. Size
Knock yourself out,...
Melting Slicks
Joined: Apr 2001
Posts: 2,115
Likes: 221
From: Ca.
Re: fuel injectors (ZylaRace)
Also, the Ford injectors are slower than the GM ones.
Huh??? :confused:
To fine tune them, you should change the Inj. Offset vs. Battery
Voltage to a higher value.
Have you actually had that help!? After tuning fms and accel inj.; maf and map; I've always ended up having to change ve table/maf table for idle blm fine tuning-the vs batt. was never consistant......
