TPI with lt1 harness, ecm, sensors. will it work

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Sep 15, 2012 | 07:57 AM

8996chevy

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From: Warren, Oh

Car: 89 IROC

Engine: 355

Transmission: 5 sp., Alum Driveshaft

Axle/Gears: 3.73 Posi

TPI with lt1 harness, ecm, sensors. will it work

I'm trying to find out if I were to take a 350 TPI engine, switch it with ecms, harness, and relevent sensors from an lt1 z28, would it run, thinking it was on an lt1 engine. what else would need to be done. thanks

Sep 15, 2012 | 08:43 AM

RBob

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From: Chasing Electrons

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Re: TPI with lt1 harness, ecm, sensors. will it work

Odds are you will need to place the opti-spark wheel into a distributor and mount the pickup for it. The LT1 ECMs likely require the proper opti signals.

RBob.

Sep 17, 2012 | 03:15 AM

vetteoz

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From: Not in Kansas anymore

Car: 82 Z28

Engine: 383 SP EFI/ 4150 TB

Transmission: T400

Axle/Gears: QP 9" 3.73

Re: TPI with lt1 harness, ecm, sensors. will it work

Quote:

Originally Posted by 8996chevy

if I were to take a 350 TPI engine, switch it with ecms, harness, and relevent sensors from an lt1 z28, would it run,

Not sure what you are trying to achieve but if you were to go to that much trouble ,would be better to go to a LSX PCM
http://www.eficonnection.com/eficonnection/24x.aspx

Sep 18, 2012 | 01:16 PM

bestracing

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From: N. Ky

Car: 86 T/A - 70 Z28/RS

Engine: Broke - 350

Transmission: 700R4 - M22

Axle/Gears: G80, 2.73 - ZQ9 G80 4.10

Re: TPI with lt1 harness, ecm, sensors. will it work

Quote:

Originally Posted by vetteoz

Not sure what you are trying to achieve but if you were to go to that much trouble ,would be better to go to a LSX PCM
http://www.eficonnection.com/eficonnection/24x.aspx

I'd have to agree. The only way I'd consider the LT1 system is if it was given to me and even then you still have to figure out how to get the opti hi-res and lo-res signals to the ECM to fire the correct injectors at the proper cam timing.