M90 rebuild or buy a different one?

**natethegreat** · 09-06-2013

Pulled the supercharger apart today and was not impressed. It appears something when through there, not sure what but doesn't look good.

Now heres my questions.

1. Theres a bunch of little scratches in the case, is it possible to hone that out to make it smooth, or is the case even salvageable? I could buy a supercharger from the pick n pull but i run the same risk of needing a snout rebuild.

2. Difficulty of rebuild? I checked out the videos and it doesn't seem to hard.

3. If i do rebuild it, im going to port it too. I checked out the thread and everybody says the way to do it is just extend the V Up and down, then just smooth it out, but then people said thats a terrible way to do it. If thats not the way, then what IS?

I didn't get a pic of the rotors, but they weren't much better.

Thanks!

**blackflag** · 09-06-2013

i bought a newish m90 with an mps and new rotors fror $100 on the f/s section....

**blackflag** · 09-06-2013

it was reptile ported if i might add!

**natethegreat** · 09-07-2013

Huh. Ill have to keep looking. Seems like everybody's just selling gen V' s

**indygrandprix** · 09-07-2013

Upgrade to a gen V then. lol

**natethegreat** · 09-07-2013

Too much lol

**Dee23** · 09-08-2013

Just bought me a Gen5, and honestly you'll probably end up paying more to rebuild your Gen3(if a shop does it) then what a Gen5 will cost now of days(there's people out there that just wants to get rid of it, moving on to different cars and builds). If you really want to keep a Gen3 then check Ebay, craigslist or keep checking here, people are selling Gen3 from left to right.

**buck531** · 09-08-2013

Looks pretty normal to me. How do your rotors look? I've never seen a case (stock) that's been perfect on the inside.

**Fivefingerdeathpunch** · 09-08-2013

I'd still run that blower.

**natethegreat** · 09-08-2013

I can get a pic of the rotors on monday, but they don't look great. They have most of the coating left but the edges look like something went through them. I took it too a shop and they said that its probably fine to run, just might not create as much boost

**txslow6** · 09-08-2013

Definetly normal. The higher mileage cars that have superchargers will look like. Infact I bet if most guys on this forum actually opened there's up they'd have similar pics.

**natethegreat** · 09-09-2013

**blackflag** · 09-09-2013

just run a smaller pulley for more whinez. it will still do the trick

**Dee23** · 09-09-2013

looks like normal wear and tear, but it does look like it lacked a few oil changes. Look like it may have had a lil to much of metal contact, due to the lack of oil and oil changes(fresh oil).

**blackflag** · 09-09-2013

well the oil is good for 100k so it can't be too bad. Its all good

**txslow6** · 09-09-2013

Originally Posted by BlackFlag

well the oil is good for 100k so it can't be too bad. Its all good

LOL. Funny, they say that about Dexcool.

**darkhorizon** · 09-10-2013

The blower will look like that after 10 miles off the dealer lot. The rotors are designed to cut into the case for a perfect fit new.

**2000gtpbt** · 09-10-2013

Originally Posted by txslow6

LOL. Funny, they say that about Dexcool.

Use Dexcool they said, It's what your engine needs they said.

**Dee23** · 09-10-2013

100k.....WOW. I remember once I changed my S/C oil 3 times just because...well once was bc I did the coupler and most would just reuse if its not bad but I don't believe in putting used oil back into anything when I can just put new oil in it. It doest hurt to change any oil. You could spend a few bucks on fresh oil or a few thousand for a new motor. 100k miles though, naw i'll pass on that one.

**blackflag** · 09-11-2013

Nothing like dexcool lol

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