454 injectors fit?
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Joined: Dec 2001
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From: NH
Car: 93 9C1 Caprice
Engine: 5.7
Transmission: 700R4
Axle/Gears: 3:42
They do physically fit. I have been trying to find out if the ECM will control them without a problem or without a new chip being made. I know it would be possible if you were to burn your own chip but I havent seen anybody that has done it. If you go ahead and try it please post the results.
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From: 600 yds out
Car: Bee-Bowdy
Engine: blowd tree-fity
Transmission: sebin hunnerd
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They are the same size.
If you burn you're own PROMs then it's real easy. All you have to do is adjust the BPW constant for the larger injectors. I've done it twice now with no problems.
Note: larger injectors do not automatically = more power. It would be a waste of money/time unless you NEED them.
If you burn you're own PROMs then it's real easy. All you have to do is adjust the BPW constant for the larger injectors. I've done it twice now with no problems.
Note: larger injectors do not automatically = more power. It would be a waste of money/time unless you NEED them.
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Joined: Jul 2001
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From: Ottawa, Ontario
Originally posted by V8Astro Captain
They are the same size.
If you burn you're own PROMs then it's real easy. All you have to do is adjust the BPW constant for the larger injectors. I've done it twice now with no problems.
Note: larger injectors do not automatically = more power. It would be a waste of money/time unless you NEED them.
They are the same size.
If you burn you're own PROMs then it's real easy. All you have to do is adjust the BPW constant for the larger injectors. I've done it twice now with no problems.
Note: larger injectors do not automatically = more power. It would be a waste of money/time unless you NEED them.
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From: clinton,tn
The problem is that just changing the injectors will add more fuel all the time. If your running lean all the time you might be ok but I think you'll wind up running too rich. Now with some chip tuning this might not be a problem.
Steve
Steve
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From: 600 yds out
Car: Bee-Bowdy
Engine: blowd tree-fity
Transmission: sebin hunnerd
Axle/Gears: fo-tins
Originally posted by JeffC1500TBI
I thought if I put the bigger injectors with the custom chip that edelbrock sent me with my heads won't they put out more fuel without customizing the chip?
I thought if I put the bigger injectors with the custom chip that edelbrock sent me with my heads won't they put out more fuel without customizing the chip?
Think of it this way. Lets just guess that a 350 injector will flow 1 gram of fuel in 1 msec (I know it's not right but just as an example). If you put the 454 injectors in then they will flow 4 grams of fuel in 1 msec. The ECM will not know how to compensate for that big of a change.
In short...the PROM has to be calibrated for the proper size injector.
people need to get off this "richer=hp" kick
in fact, in my experience i find more often than not that richer = slower
with so many tuning chicken littles telling me "rich! if you go lean youll blow your motor! etc" I spent a year and a half running around with what must have been a wot air fuel ratio of 10 to one thinking MUST still be lean because the car ran so crappy. A rich afr will slow the hell out of your car and make it run like ****
in fact, in my experience i find more often than not that richer = slower
with so many tuning chicken littles telling me "rich! if you go lean youll blow your motor! etc" I spent a year and a half running around with what must have been a wot air fuel ratio of 10 to one thinking MUST still be lean because the car ran so crappy. A rich afr will slow the hell out of your car and make it run like ****
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