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Originally Posted by mort
texanidiot25 - There were 4 cyl turbos used back in the late 80s and early 90s, but they weren't that great. The swap doesn't have to cost over 2grand. That is where getting an entirely wrecked vehicle comes in and using everything possible. As far as emissions, as long as the engine is from a 2001 or newer vehicle (must be to be legal) then I can use the items from both vehicles to make it compliant with little difficulty.
J
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GM didn't have turbo-4s in their production cars back then. They had a few Turbo V6s, (GN, Sy/Ty, Grandprix GTP) but that was about it. There are no 4 bangers in W-Bodies, you'd be starting from scratch basically for everything. And all of this work, down time, and money to get a vehicle that has little to no chance of being more efficient, and no value to anyone to resell...
As you found, changing the final drive would help, give it a shot if you have to do something. Or, spend YOUR money the way YOU want and buy better car for fuel economy. Listening to women is how bad decisions are made.
Edit: Wiki says the early W-Bodies had the Ironpuke 4 cylinder, but it wouldn't work for your swap legally, the engine is one of the most miserable pieces of junk ever made, and I doubt it'd work in the newer W-body.
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Hi Sularus,
I did the opposite many years ago, dropping a 3.8 V6 and turbo-hydra into a Chevy that had a 4cyl and a 4 speed manual. Of course the mileage dropped but performance was fine. If you can find the engine you want in a GM of about the same age it shouldn't be too much trouble. I found a Buick at a junk yard that had been sandwiched. I had to cut the drive shaft, this was in rwd days. And there was some motor mount welding and add some front spring spacers to get the front end leveled, but really minor stuff all considered. All told it was a pretty complete drive train swap for about $1000. So I think you can do it, and maybe cheaper too.
I think it is a good idea and in the long run will save you money.
-mort
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Man, we are way past the days of dirt cheap engine swaps with no legalities to deal with.
Nowhere near as easy at the BOF cars.