PROM tuning question
06-01-2003, 01:03 AM
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Car: 1992 Firebird
Engine: forged 357
Transmission: 700r4, 2200-2400 stall, vette servo
Axle/Gears: stock pegleg 2.73 drum (temp)
PROM tuning question
I'm guessing the answer to my question is YES, but...
Will I need to have a PROM tuned for my engine to run?
L03 computer to run a 350, holley 670cfm TBI, vortech heads, edelbrock intake, Comp XE268H cam, running 9.5:1 compression.
How would it run (if it would) without a PROM tuned?
Could I get away with using an L05 ECM?
Thanks
Will I need to have a PROM tuned for my engine to run?
L03 computer to run a 350, holley 670cfm TBI, vortech heads, edelbrock intake, Comp XE268H cam, running 9.5:1 compression.
How would it run (if it would) without a PROM tuned?
Could I get away with using an L05 ECM?
Thanks
Last edited by Token; 06-01-2003 at 01:07 AM.
06-01-2003, 07:14 AM
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Car: '91 t-top RS; '91 hrdtp Z28
Engine: LO3;383tpi
Transmission: 700r4;very nice 700r4
Axle/Gears: 4.10 zt posi, 3.70 auburn
How would it run (if it would) without a PROM tuned?
Could I get away with using an L05 ECM?
Go to http://www.tbichips.com and he will hook you up. It is a very well spent $30, especially when comparing it to the $300= dollars for other company's custom chips.
06-01-2003, 11:41 AM
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Car: 1992 Firebird
Engine: forged 357
Transmission: 700r4, 2200-2400 stall, vette servo
Axle/Gears: stock pegleg 2.73 drum (temp)
you guys do this for $30 plus the $50 core charge?
you could make my new engine run great?
sounds like a plan.
you could make my new engine run great?
sounds like a plan.
06-01-2003, 02:03 PM
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Car: '91 t-top RS; '91 hrdtp Z28
Engine: LO3;383tpi
Transmission: 700r4;very nice 700r4
Axle/Gears: 4.10 zt posi, 3.70 auburn
"We" don't do this. Brian at tbichips.com does it. You could always invest in your own chip burning equipment as well.
Just remember, tbichips.com is not part of thirdgen.org
He will however, help your engine run as close to optimum condition as he can with his chip tuning. The only way to get any closer is to learn how to burn your own chips, so you can fine tune as far as you want.
Where do you get a $50 core charge? That charge is for '93 and newer trucks w/ memcals. The cost for the chip you need should be $30 for the first chip and $10 for any aditional changes or mods.
Just remember, tbichips.com is not part of thirdgen.org
He will however, help your engine run as close to optimum condition as he can with his chip tuning. The only way to get any closer is to learn how to burn your own chips, so you can fine tune as far as you want.
Where do you get a $50 core charge? That charge is for '93 and newer trucks w/ memcals. The cost for the chip you need should be $30 for the first chip and $10 for any aditional changes or mods.
Last edited by r90camarors; 06-01-2003 at 02:05 PM.
06-01-2003, 05:54 PM
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Car: 1992 Firebird
Engine: forged 357
Transmission: 700r4, 2200-2400 stall, vette servo
Axle/Gears: stock pegleg 2.73 drum (temp)
I was a little tired when I read that if you couldn't tell 
06-02-2003, 01:58 PM
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Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
my gut feeling is that the XE268 will be too much cam witht eh tbi. Id shoot for the XE256H-12 or the XE262H-14. The 256 is the one i want to run with my vortecs. Its pretty much a step above the one i have now.
PS. The 262 and definatly the 268 will cause problems with the stock vortec heads. Youll have to have some work done to them to have the clearences be adiquate.
PS. The 262 and definatly the 268 will cause problems with the stock vortec heads. Youll have to have some work done to them to have the clearences be adiquate.
Last edited by dimented24x7; 06-02-2003 at 02:01 PM.
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06-02-2003, 02:03 PM
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Car: 1992 Firebird
Engine: forged 357
Transmission: 700r4, 2200-2400 stall, vette servo
Axle/Gears: stock pegleg 2.73 drum (temp)
Originally posted by dimented24x7
my gut feeling is that the XE268 will be too much cam witht eh tbi. Id shoot for the XE256H-12 or the XE262H-14. The 256 is the one i want to run with my vortecs. Its pretty much a step above the one i have now.
PS. The 262 and definatly the 268 will cause problems with the stock vortec heads. Youll have to have some work done to them to have the clearences be adiquate.
my gut feeling is that the XE268 will be too much cam witht eh tbi. Id shoot for the XE256H-12 or the XE262H-14. The 256 is the one i want to run with my vortecs. Its pretty much a step above the one i have now.
PS. The 262 and definatly the 268 will cause problems with the stock vortec heads. Youll have to have some work done to them to have the clearences be adiquate.
06-03-2003, 09:07 AM
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Originally posted by dimented24x7
my gut feeling is that the XE268 will be too much cam witht eh tbi. Id shoot for the XE256H-12 or the XE262H-14. The 256 is the one i want to run with my vortecs. Its pretty much a step above the one i have now.
PS. The 262 and definatly the 268 will cause problems with the stock vortec heads. Youll have to have some work done to them to have the clearences be adiquate.
my gut feeling is that the XE268 will be too much cam witht eh tbi. Id shoot for the XE256H-12 or the XE262H-14. The 256 is the one i want to run with my vortecs. Its pretty much a step above the one i have now.
PS. The 262 and definatly the 268 will cause problems with the stock vortec heads. Youll have to have some work done to them to have the clearences be adiquate.
My machinist checked the clearance and he said it would be good up to .480 lift before they would need to be clearanced.
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