wrong esc module
#1
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Car: 1986 Iroc, 89RS
Engine: 350 tpi, 350 tbi
Transmission: 700r4,700r4
Axle/Gears: 4.10,2.73
wrong esc module
I have a 350 in an old 305 car. 1986 tpi.
It still has the 305 ESC module in it. What problems will that cause. I have read that I need to change the esc module to a 350 one,,,why?
Am I getting un-necessary ignition retard? I "do" have a 350 knock sensor installed. Are they a matched set or what?
I never get any pre-ignition, even with 87 octane.
Am I losing a lot of performance/fuel mileage because of premature ignition retard?
I used the search; but only found people saying that you "have" to change it when you install a 350,,,,,but no one says "why".
My engine runs ok, but the gas mileage is poor. Also I have a 4.10 rear,,,,so it aint gonna be good anyway. If it is gonna help my mileage or improve performance a good bit, i'll change my ESC. Can anyone give me some advice?
I guess my main question is: Am I gonna get $85 worth of performance increase by changing my ESC??
Thanks
It still has the 305 ESC module in it. What problems will that cause. I have read that I need to change the esc module to a 350 one,,,why?
Am I getting un-necessary ignition retard? I "do" have a 350 knock sensor installed. Are they a matched set or what?
I never get any pre-ignition, even with 87 octane.
Am I losing a lot of performance/fuel mileage because of premature ignition retard?
I used the search; but only found people saying that you "have" to change it when you install a 350,,,,,but no one says "why".
My engine runs ok, but the gas mileage is poor. Also I have a 4.10 rear,,,,so it aint gonna be good anyway. If it is gonna help my mileage or improve performance a good bit, i'll change my ESC. Can anyone give me some advice?
I guess my main question is: Am I gonna get $85 worth of performance increase by changing my ESC??
Thanks
#2
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Car: 86 T/A
Engine: 383
Transmission: 700R4
Axle/Gears: 3.27 9 bolt
Re: wrong esc module
I beleive the ESC module is matched to the knock sensor, and with the 305er its probably picking up false knock. I think I remember reading somewhere that it can pull as much as 20* out. Which in turn will kill performance as well as milage. I would save your $85 and go hit the local salvage yards. The modules labeled with BLH is for 305's and the ones labeled with HKR are for the 350's.
#3
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Car: 1986 Iroc, 89RS
Engine: 350 tpi, 350 tbi
Transmission: 700r4,700r4
Axle/Gears: 4.10,2.73
Re: wrong esc module
Thank you, is this ESC a "tpi only" item or will other cars have them as well, because the local tpi boneyard cars are already stripped clean.
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Car: 86 T/A
Engine: 383
Transmission: 700R4
Axle/Gears: 3.27 9 bolt
Re: wrong esc module
I beleive there are other cars that you can find them in. I dont remember what they were off hand but I am sure some searching here on TGO will yeild some good results.
#5
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Car: 1986 Iroc, 89RS
Engine: 350 tpi, 350 tbi
Transmission: 700r4,700r4
Axle/Gears: 4.10,2.73
Re: wrong esc module
great ***** o' fire!!!!
Just for the heck of it, i unplugged my knock sensor and holy-moly my car runs like a bat outta ,,,,, when I first unplugged it and cranked my car, I knew that something was up because it idled at 1500. And then when I put it in drive and took off,,,,it was super responsive and it RAN GREAT.
Just for the heck of it, i unplugged my knock sensor and holy-moly my car runs like a bat outta ,,,,, when I first unplugged it and cranked my car, I knew that something was up because it idled at 1500. And then when I put it in drive and took off,,,,it was super responsive and it RAN GREAT.
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Car: '82 z28
Engine: L83 5.7
Transmission: 700r4-1985
Axle/Gears: 3.42 posi
Re: wrong esc module
do you have a"gear"cam drive or anything else that
could be triggering the knock sensor?-if not,must just
be a bad(or wrong)knock sensor.I have heard flat tappet
and roller cam engines use different ESC modules
could be triggering the knock sensor?-if not,must just
be a bad(or wrong)knock sensor.I have heard flat tappet
and roller cam engines use different ESC modules
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