Changed 60 to 80 injector.
Thread Starter
Le Mans Master
Joined: Jul 2010
Posts: 6,013
Likes: 726
Changed 60 to 80 injector.
Changed my friends injectors from 60 to 80 same brand(siemems).His car run fine before now with new injectors when he gets on it and it starts hitting 4k to 5k seems like the injectors turn off is that possible. He has A&A 1000hp fuel system. Car ran fine with 60 in it,But not with the 80's only at wot is when they seem to shut off. Give it a few secs then the car will run normal again,at regular driving, but not at wot. Any thoughts.
Tech Contributor
Joined: Jan 2007
Posts: 19,471
Likes: 1,171
From: Dyer, IN
Changed my friends injectors from 60 to 80 same brand(siemems).His car run fine before now with new injectors when he gets on it and it starts hitting 4k to 5k seems like the injectors turn off is that possible. He has A&A 1000hp fuel system. Car ran fine with 60 in it,But not with the 80's only at wot is when they seem to shut off. Give it a few secs then the car will run normal again,at regular driving, but not at wot. Any thoughts.
Thread Starter
Le Mans Master
Joined: Jul 2010
Posts: 6,013
Likes: 726
Tech Contributor
Joined: Jan 2007
Posts: 19,471
Likes: 1,171
From: Dyer, IN
Thread Starter
Le Mans Master
Joined: Jul 2010
Posts: 6,013
Likes: 726
I guess he had someone awhile back change his 37 to 60 and he said it ran good accept for some idle issues,but he was going to get it tuned and the tuner said with his new pulley set up it was possible that the 60's were not enough they said they would put 80's in before the tune and charge him 800 ish . I told him what heck lets try putting the 80's in ourself and save some money, it cost him under 500 and a lunch for me. so that's were he stands.So he is getting tune but the tuner is now backed up and it take a few weeks to get to it.Since i now nothing about injector if they have to be reprogramed or not.Figure i ask forum if it was something easy,so the tuner don't charge him extra for nothing.
Pro
Joined: Mar 2004
Posts: 653
Likes: 0
Changed my friends injectors from 60 to 80 same brand(siemems).His car run fine before now with new injectors when he gets on it and it starts hitting 4k to 5k seems like the injectors turn off is that possible. He has A&A 1000hp fuel system. Car ran fine with 60 in it,But not with the 80's only at wot is when they seem to shut off. Give it a few secs then the car will run normal again,at regular driving, but not at wot. Any thoughts.
PE kicks in, blows a lot of extra fuel down, and the engine can't burn it all.
Tech Contributor
Joined: Jan 2007
Posts: 19,471
Likes: 1,171
From: Dyer, IN
I guess he had someone awhile back change his 37 to 60 and he said it ran good accept for some idle issues,but he was going to get it tuned and the tuner said with his new pulley set up it was possible that the 60's were not enough they said they would put 80's in before the tune and charge him 800 ish . I told him what heck lets try putting the 80's in ourself and save some money, it cost him under 500 and a lunch for me. so that's were he stands.So he is getting tune but the tuner is now backed up and it take a few weeks to get to it.Since i now nothing about injector if they have to be reprogramed or not.Figure i ask forum if it was something easy,so the tuner don't charge him extra for nothing.
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
Thread Starter
Le Mans Master
Joined: Jul 2010
Posts: 6,013
Likes: 726
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
You need to retune it for the larger injectors. I'm surprised it runs as good as it does with out the retune. Until then, its not going to run correctly.
BC
BC
Thread Starter
Le Mans Master
Joined: Jul 2010
Posts: 6,013
Likes: 726
