Buick 3.8L supercharger

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Gen III Eaton M90, if the epoxy is not peeling from the rotors and the coupler is good, you might get $150 - $200 out of it to the right person, but even then you could sit on it for a while.
 
Don't bother trying to use it on anything larger then the engine it came on (3.8) they are pretty inefficient even for that size engine, they create a ton of heat. The Gen V on the 2005+ Grand Prix supercharged is a little better, but still only an M90 and not much good for anything over 3.8 liters.
 
Yeah it's going to be used for a 3.8L lol. I don't even see how it would be possible to use this on a bigger motor, its so small.

Here's the deal in a nutshell, my mother has a 2000 Monte carlo SS and refuses to let it go. I hate those cars, no offense. They just don't feel like a real monte carlo, and like everything else GM sh*t out in the 90's and early 2000's they where put together by a 2 year old. But she loves the car and plans to restore it once it kicks the bucket all around.

The 3.8L in it is still chugging away with 180k, when it finally does pop she's going to have the whole drivetrain rebuilt. That's when i'll overhaul that SC and stick it on, still need to hunt down an intake and injectors but i gathered up everything else required.


In her defense, it's not like any of our cars where "fast" from the factory either lol. In fact stock VS stock that 2000 SS would wipe the badges off my 88 SS.
 
Honestly, its not worth it to just do a top swap if your spending the time to redo the bottom end. The L67 bottom end has lower compression for the blower and stronger rods and pistons. You would have to swap heads, injectors, fuel supply stuff, bit of wiring, ect.

Would be a lot easier to buy an entire lowish mileage L67 and stick it in.
 
81cutlass said:
Honestly, its not worth it to just do a top swap if your spending the time to redo the bottom end. The L67 bottom end has lower compression for the blower and stronger rods and pistons. You would have to swap heads, injectors, fuel supply stuff, bit of wiring, ect.

Would be a lot easier to buy an entire lowish mileage L67 and stick it in.


That's the info i'm looking for. C/R between motors and so on, it's kind've hard to come by. Any of this would be worlds away anyhow, the motor has 170k millage on it now and if im right it won't have a problem going another 100k. So who knows if the CAR itself will still be alive, Pennsylvania kills cars.
 
L36 compression ratio - 9.4:1
L67 compression ratio - 8.5:1

I definitely agree that if the engine is going to come out for a rebuild, to swap in an L67, or even an L32. That would be much better in the long run then doing a top swap if the engine is already out.

I also agree that the 4T65E trans is the weak point for sure. You will go through two or three transmissions / rebuilds during the life of a well maintained 3800. My '03 SSEi is sitting at 243,000 miles right now, I bought it with 125,000 on it. Dealer records show trans was replaced with an SRTA unit at 30,000 miles under warranty and I replaced it again at 168,000 miles. It gets driven every day, and every time I am behind the wheel the tires are spinning and the engine smacks the redline on the tach, only issue with the engine since I have owned it is intake gaskets and water pump. I can easily see this car lasting to 300,000+ miles, same with my '02 Bonneville SE that I drive daily with 241,000 miles on it.
 
The Buick 3800 (series II?) held up great. Lots of them out their that have been ill maintained and still running at 300,000. My father in law bought an 89 Park Avenue brand new. Lived between cornfields 30 miles from the nearest stop light. Maintained it well for 170,000 and gave it to his son who never changes the oil and would never do anything until it broke who sold it to his son who is the same way. It never had anything but routine maintenance; water pump, brakes, etc. When the grandson sold it she had 335,000 on the clock and had still never been apart. Yea she is rattling. I been meaning to throw another quart of oil in her. :blam:
 
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