1990 305 vs 350 prom
#1
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Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
1990 305 vs 350 prom
will either prom work on a 1990 7730 ecu? The prom will need to be reprogrammed either way for my 78mm turbo 383.
I read something about the 305 proms not being programmable in these years and that I would need a 350 prom.
I read something about the 305 proms not being programmable in these years and that I would need a 350 prom.
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Car: check
Engine: check
Transmission: check
Re: 1990 305 vs 350 prom
As long as it has the window it can be erased and re-burned. GM did use some one time programmables, those are in plastic packages with no window.
RBob.
RBob.
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Re: 1990 305 vs 350 prom
For all the dataloging and tuning you will need to do to get this tune dialed in you might consider going with dynamic efi's ebl p4. If you weigh the cost of a apu1 , g1 and some sst27sf512's and all the work you need to do it will save you alot of time and frustration.
http://www.dynamicefi.com/EBL_P4_Flash.php
http://www.dynamicefi.com/EBL_P4_Flash.php
#6
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Car: 1994 Z28
Engine: 355 LT1
Transmission: T56
Axle/Gears: 3.42
Re: 1990 305 vs 350 prom
For all the dataloging and tuning you will need to do to get this tune dialed in you might consider going with dynamic efi's ebl p4. If you weigh the cost of a apu1 , g1 and some sst27sf512's and all the work you need to do it will save you alot of time and frustration.
http://www.dynamicefi.com/EBL_P4_Flash.php
http://www.dynamicefi.com/EBL_P4_Flash.php
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Car: 91' Firebird SOLD
Engine: 350 TPI +bolt-ons
Transmission: 700r4
Axle/Gears: 3:42
Re: 1990 305 vs 350 prom
It took me about 6 months to a year to get a grip on it and most of us are still learning. It's do able if you are patient.
Last edited by ninetyone; 01-07-2013 at 11:41 AM.
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