North American Turbocoupe Organization

86 to 88 VAM and computer
RDOG Offline
Posting Freak
Is it a direct replacement when going to the Big Vam and LA3 computer on a 88?
1986 Turbo Coupe. Boport StageIII head, Boport 2.1, Performance Techniques 50 trim hybird, StageII.63, stinger 3" exhaust, Phenolic spacer, Boglog header,NPR FMIC intercooler setup, kirban fpr, bigrmotorsports fuel rail, diablo water meth kit, CAI, remote mount TFI, CHE rear adj control arms, MAC girdle, 8.8 rear disc, aluminum drive shaft, H&R lowerings springs Tbird Turbo Specific, y MAS!!

Pete D Offline
It should be but remember the LA3 is programmed for the brown top injectors. The other thing is the LA3 is set up for an ACT sensor

NATO Member
88 TC X 2, 86 SVO, Main TC with K&N, 3"DP to 2.5"duals through Dynamax, Ric valve at 17+ and disconnected KS. Elite Bodega 16" chrome wheels. Autometer pod w/ A/F and Vac/boost gauges.140 mph Motorsports Speedo New engine: Total Seal rings and TRW pistons, ported and polished head w/ cc'd chambers,1.59"exhausts, SS valves, gutted upper, knife edged lower, A-230 cam, Race Engineering Adj Cam Sprocket, Crowlers, ARP head studs, and rod bolts. Walbro 255 HP pump and Kirban adj FPR, T-3. Centerforce II, KB subs and jack rails.
Pete Dunham


GT350R Offline
Senior Member
Nope, You will have to add the wires for the ACT and then repin the coputer to swap the locations of the VAT and the ACT.

The early cars only used the VAT. The later cars(87-88) use the same pins for the VAT to go to the ACT and then they used new pins to go to the VAT.

On my wiring diagrams page you will find everything you need including a write up on it.

Pete was sleepin through that one, he forgets that the 86's have brown tops [Image: wink.gif]
(sold Sad ) 87 5speed, Motorsport head, [email protected]+2, [email protected], gutted or ported everything & all the typical junk.
84 Gt350 2.3T T-top
84 Turbo GT 418rwhp

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fastest4d Offline
Junior Member
don't forget the la3 are also set up to run with an intercooler

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Early 85 SVO Comp. Prep.
88 Notchback-- 2.3t
92 SAAB 9000CD-2.3T
63 Buick Skylark
1987 TC Auto but hey it was free

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