Stock 04Z fuel limits?
Thread Starter
Drifting
Joined: May 2007
Posts: 1,552
Likes: 324
From: Mid Ohio
Stock 04Z fuel limits?
Hello, this winter I'm considering having my stock heads ported or maybe buying an aftermarket set. Plus adding a cam in the area of 112LSA and 0.600 lift. And a dyno tune of coarse.
I already have full LT headers and high flow bullet cats and corsa exhaust.
Due to budget I'm thinking of keeping my stock LS6 intake, TB, and MAF. Besides I'm not so interested in 6000+ rpm power as this is a 99.99% driven street car. 2500-6000rpms is where I almost always play.
So if I were to limit my scope to heads, cam, and dyno tune, is my stock fuel system capable of handling the increased power?
Could I get away with just upgrading the injectors?
Anyone w/experience in this type of project?
Regards, Richard
I already have full LT headers and high flow bullet cats and corsa exhaust.
Due to budget I'm thinking of keeping my stock LS6 intake, TB, and MAF. Besides I'm not so interested in 6000+ rpm power as this is a 99.99% driven street car. 2500-6000rpms is where I almost always play.
So if I were to limit my scope to heads, cam, and dyno tune, is my stock fuel system capable of handling the increased power?
Could I get away with just upgrading the injectors?
Anyone w/experience in this type of project?
Regards, Richard
Intermediate
Joined: Sep 2022
Posts: 41
Likes: 12
From: Fort Worth, Texas
Hello, this winter I'm considering having my stock heads ported or maybe buying an aftermarket set. Plus adding a cam in the area of 112LSA and 0.600 lift. And a dyno tune of coarse.
I already have full LT headers and high flow bullet cats and corsa exhaust.
Due to budget I'm thinking of keeping my stock LS6 intake, TB, and MAF. Besides I'm not so interested in 6000+ rpm power as this is a 99.99% driven street car. 2500-6000rpms is where I almost always play.
So if I were to limit my scope to heads, cam, and dyno tune, is my stock fuel system capable of handling the increased power?
Could I get away with just upgrading the injectors?
Anyone w/experience in this type of project?
Regards, Richard
I already have full LT headers and high flow bullet cats and corsa exhaust.
Due to budget I'm thinking of keeping my stock LS6 intake, TB, and MAF. Besides I'm not so interested in 6000+ rpm power as this is a 99.99% driven street car. 2500-6000rpms is where I almost always play.
So if I were to limit my scope to heads, cam, and dyno tune, is my stock fuel system capable of handling the increased power?
Could I get away with just upgrading the injectors?
Anyone w/experience in this type of project?
Regards, Richard
Running Guns & Moonshine
Joined: Aug 2001
Posts: 12,643
Likes: 7,291
From: CT
Your pump is up for it. Your injectors ought to be also, but raise the question with your tuner on that point before you buy X or Y brand.
OR.... remember the option of the SC route. All the fun, and easily swapped to stock if you ever sold the car.
OR.... remember the option of the SC route. All the fun, and easily swapped to stock if you ever sold the car.
Thread Starter
Drifting
Joined: May 2007
Posts: 1,552
Likes: 324
From: Mid Ohio
Thank you for the replies. Yes I'm eyeing a ECS or A&A SC too. I know a SC would be much better. But they seem to make the most power above 4000rpms. That's just not really my style of driving. I want the most meat in the 2500-5000 area. Of course they make more but they also cost more too.
Burning Brakes
Joined: Feb 2019
Posts: 1,028
Likes: 377
From: SW Ohio
Having owned two C5Z's with large cams, heads, etc., if I were to do it a 3rd time I would DEFINITELYl go forced induction on a stock motor. I had a mustang cobra that had a D1SC supercharger, and the driveability is stock and the power slides in when you need it. With a cammed car you sacrifice some driveability and as some point you will definitely grenade a lifter or spring if you're enjoying the car. It's just part of it.
Plus, there is a scientifically proven fact that the minute a LS motor is cracked open and the internals see sunshine, the magic escapes the crank case. It's science n' stuff.
Plus, there is a scientifically proven fact that the minute a LS motor is cracked open and the internals see sunshine, the magic escapes the crank case. It's science n' stuff.
Last edited by CinciZ06; Jul 25, 2024 at 12:05 PM.
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