[flames_blue]

what are the compression ratio ranges for the eaton M90 supercharger or where could I figure it out? I figure if any could help me then you guys could.

[97stanger]

you dont want to get the Eaton. Its junk. I almost bought it until everybody on here told me all the cons about it. It really is junk. you want to get a procharger.

[flames_blue]

well I could get the eaton for like a 1/5 of the price. whats so bad about it?

[97stanger]

Originally Posted by flames_blue well I could get the eaton for like a 1/5 of the price. whats so bad about it?

Yeah, thats true. But you get what you pay for. You will need to get 43 parts to make it work. Then you are going to have to find a shop to fabricate a braket. The one from the supercoupe wont fit. it is not a good idea to get it. Believe me. Ask anyone on here. Juggalo, GreenFaleen, Chris, Cricket, AB, etc. They will tell ya, its not worth it. I dont have time to get into it, but believe me, buying the whole Eaton M90 setup for $500.00 is not worth it. You will not be happy. You are better off getting an intercooled Procharger for about 4k. That is what you should get. If you dont want that, you can get a nice turbo setup for about 3k.

[97stanger]

to get a better idea pm cricket or Faleen. they should be able to tell you more. Talk to Cricket about the Turbo setup also. Hes very helpful in the area. Good luck

[flames_blue]

ok thanks man

[g money]

Well, what are you looking for from you're forced induction setup? If you want moderate low end boost, which peaks at lower RPMs, then you do NOT want a centrifugal blower like a Procharger or Vortech. A centrifugal blower produces higher boost close to redline, and really eats up energy at the low end. I would recommend one if you are primarily racing, or hitting high RPMs regularly, but it is a suboptimal design for a daily driver. For a daily driver, a roots-style blower, like an Eaton, is vastly superior, technically. How difficult it is to install, I couldn't say, but it produces better boost at lower speeds, and less boost than a centrifuge at higher RPMs.

Of course, you can always go with a turbo, but unless you have forged internals, good luck finding one which is at all efficient for you're car. Most turbos are really wasteful unless running moderate boost at the top end, say 10psi.

[Roadhawg]

Installing a M90 is mostly a bolt, and only requires a custom tune.
For daily driving you cannot bet the low end torque of the M90.

[Juggalo_X]

not to mention if you get the eaton you will have to pull the whole top end off of the tbird just to get it to work. the compressions ratio are way different on your mustang as apposed to the tbird so you looking at a nightmare on wheels that will need ecu remapping and a wicked ass tune to even run or think about running. they also run alot hotter then anything you can buy third party.

[Roadhawg]

Originally Posted by Juggalo_X not to mention if you get the eaton you will have to pull the whole top end off of the tbird just to get it to work. the compressions ratio are way different on your mustang as apposed to the tbird so you looking at a nightmare on wheels that will need ecu remapping and a wicked ass tune to even run or think about running. they also run alot hotter then anything you can buy third party.

You know this from personal experience?

[the gillz]

yeah both would be freakin sweet. I actually saw an article about a new VW hatchback of somekind that has a supercharger sitting above a turbo. Supposedly the supercharger is to help it in the low end of the line, then the turbo spools up for the higher rpms. Its weird but actually does exist. But on a mustang I would go with a supercharger IMO because I like the trottle response almost like a killer NA motor.

[Ninjawafers!]

as said above you will need 40+ parts to make it work... in finding all the parts, buying them, and putting them on and the amount of hp you get from the M90 the Procharger would be a much better value. it gives more hp than the eaton and will bolt on in about 10 hours if you are decent with mechanics. either way you go, you will need forged internals an the other supporting parts, i.e. t-lok, and you will also need a dyno tune with forced induction.

[Juggalo_X]

Originally Posted by Roadhawg Originally Posted by Juggalo_X not to mention if you get the eaton you will have to pull the whole top end off of the tbird just to get it to work. the compressions ratio are way different on your mustang as apposed to the tbird so you looking at a nightmare on wheels that will need ecu remapping and a wicked ass tune to even run or think about running. they also run alot hotter then anything you can buy third party. You know this from personal experience?

nope i know this because i used to work at a ford dealership and have done a m90 swap from a tbird to a mustang... the compression ratio is so different the whole top end has to be moved over of optimal performance and less of a tuning nightmare :wink if you dont swap the top end fully you hav the biggest tuning nightmare ever and probably will get really really bad detonation even after tuned. no to mention it really does take alot of parts to make it work. and yes a custom bracket will have to be machined.
they are the exact same engine COMPLETELY different top end even the cam is different.

[itschristorres8]

the m90 is a no go.
especially on a 2002 v6, its even more difficult and complex vs the single port sn95 mustangs

[02ponypackage]

you can spend a lot more money in wiser places end of thread

[itschristorres8]

Originally Posted by 02ponypackage you can spend a lot more money in wiser places end of thread

big +1

and TIME

[ssajdowitz]

The stock mustang 3.8 runs 9:1 compression. The 89 supercoupe runs 8:1 compression. On my forged engine, I run 8.5:1.

The m90 is not junk if you know what you're doing. It is expensive though once you include all the other parts. But, it was still cheaper than buying a vortech. It does, however, require much more work. Check out my garage.

[itschristorres8]

Originally Posted by ssajdowitz The stock mustang 3.8 runs 9:1 compression. The 89 supercoupe runs 8:1 compression. On my forged engine, I run 8.5:1. The m90 is not junk if you know what you're doing. It is expensive though once you include all the other parts. But, it was still cheaper than buying a vortech. It does, however, require much more work. Check out my garage.

after looking at your garage, ive seen that you got lucky with alot of things or didnt add the install price or somethign

someone whose gonna have to pay full price for new things and for everything and to install everthing will pay more then you.
k now not including forged internals or the rear end
the vortech will be cheaper and more powerful at the same psi, if not cheaper then maybe $300 or so difference...
but i'd rather pay for the extra $300 and get a bolt on kit that is easier to put together and will make more power

[ssajdowitz]

Well, what do you learn by buying a kit? Not as much as making your own. There's value in that. I guess for someone who doesn't care to know more it would be good.

Oh yeah, the install price....I guess I could measure it in hours, but there's no place to type that in. I've never taken any of my cars to a shop.

A vortech has an exponential torque curve resulting in increases only in the higher rpm range. The m90 is a roots blower. Therefore peak torque is somewhere around 3000rpm. I want to race a vortech v6 mustang if I ever find one around, just to see the look on their face. I'd take my setup over a vortech any day.

[itschristorres8]

wat about a turboed v6 vs your car