48Njim
11-21-2023, 08:31 AM
Newbie here, trying to get back into an old project. It's a '65 Toyota Land Cruiser with '69 Camaro motor/TH350 AT. About ten years ago I tossed the Quadrajet and installed a TBI from a '88 Chevy Astro Van. Its been good enough for the old Cruiser that doesn't get driven to far or to fast but I think it could be better.
If nothing else my understanding of this set-up could be better.
Facts:
'65 Land Cruiser FJ40 with
'69 Camaro engine(HB) 350(5.7L)/300hp w/TH350 auto using TBI from
'88 Chevy Astro Van ECM
SVC# 1227747
Prom: AKMH
Obliviously the engine is 5.7L V8 and the ECM/prom is for a 4.3L V6. If I understand correctly, it would have been better to have used a ECM/Prom for a 5.7L engine. Again, the engine seems to run fine but I suspect I'm not taking full advantage of the bigger engine. This isn't much a problem consider the little Cruiser's original engine was a small inline six cylinder.
Question:
Should/could I swap out installed Prom for a variety more appropriate for the 5.7 engine? Perhaps an ASDU?
Or could tuning the existing chip get similar results? Sorry I haven't dipped my toes in the tuning pool, but I'm interested in trying.
Or leave it and swap 5.7L injectors?
I'll appreciate any thoughts or direction.
Thanks in advance,
Jim
If nothing else my understanding of this set-up could be better.
Facts:
'65 Land Cruiser FJ40 with
'69 Camaro engine(HB) 350(5.7L)/300hp w/TH350 auto using TBI from
'88 Chevy Astro Van ECM
SVC# 1227747
Prom: AKMH
Obliviously the engine is 5.7L V8 and the ECM/prom is for a 4.3L V6. If I understand correctly, it would have been better to have used a ECM/Prom for a 5.7L engine. Again, the engine seems to run fine but I suspect I'm not taking full advantage of the bigger engine. This isn't much a problem consider the little Cruiser's original engine was a small inline six cylinder.
Question:
Should/could I swap out installed Prom for a variety more appropriate for the 5.7 engine? Perhaps an ASDU?
Or could tuning the existing chip get similar results? Sorry I haven't dipped my toes in the tuning pool, but I'm interested in trying.
Or leave it and swap 5.7L injectors?
I'll appreciate any thoughts or direction.
Thanks in advance,
Jim