Alternative Port EFI Intakes This board is for tech discussions and questions about aftermarket port EFI such as the HSR, MR, SR, BBK, FIRST, etc.

Different FI on TBI car.

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Old Nov 7, 2005 | 04:10 PM
  #1  
N/A89CamaroRS's Avatar
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From: Grand Rapids, Michigan
Car: 89 Camaro RS
Engine: LO3
Transmission: 700-R4
Different FI on TBI car.

Is it possible to convert from TBI to the LTI style EFI? Without changing the block? I can get the manifold with the intake and TB with plugs wires and the coils for pretty cheap, but is it possible?
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Old Nov 20, 2005 | 02:56 AM
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91banditt2's Avatar
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From: Cincinnati,Ohio
Car: 1991 BandittII Firebird
Engine: 5.7 HSR
Transmission: 700R4
Axle/Gears: 3.27 9 bolt
no changing of the block is needed
the search function is your friend.
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Old Nov 22, 2005 | 12:31 PM
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thirdgen88's Avatar
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From: Bonner Springs, KS
Car: 1995 Corvette
Engine: LT1
Transmission: 6 spd Manual
Axle/Gears: Dana 44, 3:45:1
Yup, it can be done... I did a conversion just like that on my brother's '91 TBI Bird. You can see that in this thread.

We swapped out the L03 long block with a healthy L98, but it can be done (just with fewer steps) if you just change the induction and injection.

Oh, and don't forget that you need to change the fuel pump too...
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