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Im throwing around the idea of supercharging my 3.1. Im looking for a max of 10psi and I was just wondering which would be better/cost efficiant for my setup, the m90 or the m62. Im not looking to have a 10 sec 1/4 mile, Im just looking for a little more pep.
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My CarDomain Site--------The Camaro Song -
M90
Even if it has teh ability to run higher than you want, it's better to do so, because the charge won't be heated as much. Better to be in a more effciant region than trying to get more out of something than it can in reality do.
Also you'll want more, once you get a taste, you'll want more, and more and more and....
I also believe the M62 is only god for up to 2.5L displacement IIRC. -
you can always keep an eye out on the bonehoards and grab a blower from a Lightning motor, I want to say they're the equivalent to an M90, and a bit smaller, IIRC. I think they can boost upto about 15-17psi, but can be dropped by changing the size of the blower pulley . . .N-body enthusiast:
{'87 Grand Am SE - 3.0 90* v6} / {'93 Grand Am LE - 3.3 90* v6}
{'98 Grand Am SE - 2.4 Q4} / {'99 Grand Am GT1 - 3400 60* v6}
Current Project:
{'90 Chevrolet C1500 Sport 350TBI}Comment
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M90's will be the cheapest and easiest to find. The only advantage the M62 has is that it'll squeeze into tighter spaces.1995 Grand Am SEComment
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Eatons website says that the m62 is for 2.5-4.0L and the m90 is for 3.0-5.0L. What psi is the m90 with the stock pulley? or is that something that is engine specific?
Ive been reading and leaning more twards the m90, if I go this way, but I just wanted to get some input.My CarDomain Site--------The Camaro SongComment
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boost depends largly on displacment. at a given rpm, it will make more boost on a small motor than a large motor. here is the formula:
drive ratio X blower displacement X 25.58 / Engine CID – 14.7
that being said, id go with an m90. it will make boost quicker and has more potential. the only downside is it takes a bit more power to drive, however that can easily be overcome with a smaller pully.
btw: the lightning came with an eaton m112, a lot bigger than an m90. and even so, finding a lightning motor in the junkyard, let alone one that the place will let you take the blower off of, is extremly slim.
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hmmm . . . didn't realize it was that big; guess it's been a while since I've seen a blown 3800. Damn skippy on that bonehoard comment, though - there are those that specialize in certain things, though, which was what I was getting at (shoulda been more specificbtw: the lightning came with an eaton m112, a lot bigger than an m90. and even so, finding a lightning motor in the junkyard, let alone one that the place will let you take the blower off of, is extremly slim.
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N-body enthusiast:
{'87 Grand Am SE - 3.0 90* v6} / {'93 Grand Am LE - 3.3 90* v6}
{'98 Grand Am SE - 2.4 Q4} / {'99 Grand Am GT1 - 3400 60* v6}
Current Project:
{'90 Chevrolet C1500 Sport 350TBI}Comment
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So you plan on leaving a hole cut in your hood or what?SpudFiles
Blast vegetables and whatever else you can think of!
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1996 3500GP Coupe, "Bright White".
3500 swap, 60degreeV6 1393 Cam, Ported Intakes, Comp Cams Valve Springs, 65mm TB, Custom Pushrods, S&S Headers, 97 PCM with DHP Powrtuner, 2.5" back to dual Hooker Aerochambers, SS Brake Lines, Addco swaybar, KYB's, Intrax Springs, STB's, etc!Comment
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Nope. This would be done on a Camaro, so I was planning on mounting it over one of the valve covers and keep the stock hood. But Im still not 100% on what kind of turbo/SC I want yet. Just checking out/narrowing my options.Originally posted by PCGUY112887 View PostMy CarDomain Site--------The Camaro SongComment
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