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Discussion Starter · #1 ·
I know a kid who has an gen 3 eaton m90 for sale. He is going to give me a good price for it. The question i have is he had it on a 99 buick regal 3.8L will it fit my engine? Also what else would i need for it. Do i need a new intake manifold?
 

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The buick motor was built with forged Pistons and rods. It is a really beefy motor. Your best bet who get a complete SC assemby off of a Thunderbird SC but you will need to beef up the bottom end of your engine with Forged pistons and rods. Actually the best way to go is a complete Supercoupe engine swap!!!! Any way you look at it it will cost you money
 

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Discussion Starter · #3 ·
How much power can the stock bottom end handle? Also didn't the T-Bird SC have an eaton m90 on it?
 

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greenpony02 said:
How much power can the stock bottom end handle? Also didn't the T-Bird SC have an eaton m90 on it?

The stock 3.8 Pistons and Rods where not designed to handle the high pressures built up in a roots style blower. Yes the T-Bird SC is a m90.
 

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from the prices i have seen of making an eaton m-90 work on a 3.8 (single or split port) you are better off just buying a centrifugal supercharger made for your engine
 

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Actually I recently saw a m90 set up for 3.8 and 4.2 motors. I have not researched this yet or have heard any people using it. I have been trying to find it but have had no luck
 

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How hard is it to install the M90 on a single port?
 

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You need a donor TBird SC with engine, wring harness and Computer. As I said The stock 3.8 is not built to withstand a roots type blower which build tremendous pressures on the pistons and rods.
 

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I know about the bottom end and all that just wondered if it was hard to do, that's all.
 

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sry to bring up an old thread, but i saw a kit for an eaton super charger on ebay for 99-04 6s it was an adator kit for 400 or 500 without the super charger. no welding yatta yatta but the sc it required was from chevy 3800 series 2. any one know of this kit??? any info?/
 
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