Hey -- first post on here, been reading the forum for a few weeks though. EXCELLENT site
Anybody done this? I've searched around here and elsewhere but didn't come up with much. One guy on the MS forums who had done a TBI conversion, another on an off-road forum who had done the same on an old odd-fire 225... that's it.
From browsing through the Megasquirt manual online, it seems as if the factory HEI can be reused as well as most of the stock CCC sensors (I've got an '87 3.8 ). All the other logistics of making it work are out there... I'd do it TBI if that was the only (within reason) way to make it work, but I'd MUUUCH rather use a port injected setup, and that's where things get iffy...
I checked rockauto.com and the very early front-wheel drive ('84-'88) MPFI/SFI V6 intake pattern seems to "match" the carbed V6...
'87 3.8 Carb Intake
'87 3.8 SFI Intake
...EXCEPT that it appears to be reversed, meaning the SFI intake manifold would have to go on the carbed motor backwards - not familiar enough with the SFI motors to know if that would create a clearance issue. I'm assuming the larger hole between the intake ports on the SFI gasket is just an EGR port. The early 3.8 Turbo (EFI) motors use the same exact pattern as the FWD 3.8 as well.
Anyone have any insight into whether this stuff actually fits? I couldn't find any detailed images online and the junkyards where I live don't let you go browsing around anymore. I'd like to start gathering parts and putting stuff together, although it won't be going on the car for awhile... want to get the crappy carb setup, and the rest of the car, running perfectly and straightened out before I tear everything out and start over.
Thanks!
-sean
Anybody done this? I've searched around here and elsewhere but didn't come up with much. One guy on the MS forums who had done a TBI conversion, another on an off-road forum who had done the same on an old odd-fire 225... that's it.
From browsing through the Megasquirt manual online, it seems as if the factory HEI can be reused as well as most of the stock CCC sensors (I've got an '87 3.8 ). All the other logistics of making it work are out there... I'd do it TBI if that was the only (within reason) way to make it work, but I'd MUUUCH rather use a port injected setup, and that's where things get iffy...
I checked rockauto.com and the very early front-wheel drive ('84-'88) MPFI/SFI V6 intake pattern seems to "match" the carbed V6...
'87 3.8 Carb Intake
'87 3.8 SFI Intake
...EXCEPT that it appears to be reversed, meaning the SFI intake manifold would have to go on the carbed motor backwards - not familiar enough with the SFI motors to know if that would create a clearance issue. I'm assuming the larger hole between the intake ports on the SFI gasket is just an EGR port. The early 3.8 Turbo (EFI) motors use the same exact pattern as the FWD 3.8 as well.
Anyone have any insight into whether this stuff actually fits? I couldn't find any detailed images online and the junkyards where I live don't let you go browsing around anymore. I'd like to start gathering parts and putting stuff together, although it won't be going on the car for awhile... want to get the crappy carb setup, and the rest of the car, running perfectly and straightened out before I tear everything out and start over.
Thanks!
-sean