Performance Chip or 'Custom" Chip
Thread Starter
Supreme Member
iTrader: (8)
Joined: Jan 2000
Posts: 3,968
Likes: 1
From: Macedonia ,OH
Car: Formula
Engine: 6.0 LSX
Transmission: 4L60E
Axle/Gears: 9 Bolt 3:27
Performance Chip or 'Custom" Chip
Mods Below
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89 FORMULA 350 Edelbrock Cat-Back ,March Pulleys,Super Coil,MSD 6AL ,Edelbrock TES's, AFPR ,Shiftkit, Edelbrock Base ,AS&M Runners, Edelbrock Waterpump, Fast chip,Crane Gold 1.6 RR's, BBK 52mm TB , MSD 22# Injectors ,9.5 Vigilante. Hoping for 13.5
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89 FORMULA 350 Edelbrock Cat-Back ,March Pulleys,Super Coil,MSD 6AL ,Edelbrock TES's, AFPR ,Shiftkit, Edelbrock Base ,AS&M Runners, Edelbrock Waterpump, Fast chip,Crane Gold 1.6 RR's, BBK 52mm TB , MSD 22# Injectors ,9.5 Vigilante. Hoping for 13.5
TGO Supporter
Joined: Jul 1999
Posts: 10,907
Likes: 5
From: The Bone Yard
Car: Death Mobile
Engine: 666 c.i.
Burn your own. Nobody is going to put as much love and care into burning you a PROM as you would.
Learn what you can do, JUST so that you will at least to know what you can ask for and is possible with your PROM.
Some of the later ecms have some nice capabilites, while the earlier ones do not. Right now I am spending my time learning my particular ecm, the SD 730 with the 8D. But there are a lot of guys on the PROM Board with the MAF 165 ecm with 6E like yours.
"Off the shelf" PROMs are a COMPLETE waste of money. They make minor changes to the spark table and possibly a couple of other tables. And the changes they do, often hurt performance by over richening the Pulse Width of the injectors.
On my "off the shelf" ADS Supersh!t they actually screwed up my spark table and Volumetric Efficiency table. It turned out to be a major source of my knock retard being triggered. AND this is with only 30* of maximum advance...they only alter the mid-range area and a poor job at that.
The only alternative to consider would be a Custom PROM if you were not to do it yourself. But, the cost of one custom PROM can exceed the cost of all the equipment and software necessary to burn your own PROM. And some of those Custom PROM suppliers limit you to the number of "re-burns" before they charge you again.
TPIS doesn't even do that. They charge a minimum $100 for another chip and full price if you change the displacement of your engine. It only requires a simple change of the Flow Rate of your injector to compensate for the larger injector size that a larger engine woudl require and then some minor tweaking of tables to get the optimum settings.
It actually quite fun to play with the tables and see positive results. You quickly learn what doesn't also. But it's all a part of learning.
Learn what you can do, JUST so that you will at least to know what you can ask for and is possible with your PROM.
Some of the later ecms have some nice capabilites, while the earlier ones do not. Right now I am spending my time learning my particular ecm, the SD 730 with the 8D. But there are a lot of guys on the PROM Board with the MAF 165 ecm with 6E like yours.
"Off the shelf" PROMs are a COMPLETE waste of money. They make minor changes to the spark table and possibly a couple of other tables. And the changes they do, often hurt performance by over richening the Pulse Width of the injectors.
On my "off the shelf" ADS Supersh!t they actually screwed up my spark table and Volumetric Efficiency table. It turned out to be a major source of my knock retard being triggered. AND this is with only 30* of maximum advance...they only alter the mid-range area and a poor job at that.
The only alternative to consider would be a Custom PROM if you were not to do it yourself. But, the cost of one custom PROM can exceed the cost of all the equipment and software necessary to burn your own PROM. And some of those Custom PROM suppliers limit you to the number of "re-burns" before they charge you again.
TPIS doesn't even do that. They charge a minimum $100 for another chip and full price if you change the displacement of your engine. It only requires a simple change of the Flow Rate of your injector to compensate for the larger injector size that a larger engine woudl require and then some minor tweaking of tables to get the optimum settings.
It actually quite fun to play with the tables and see positive results. You quickly learn what doesn't also. But it's all a part of learning.
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