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Eaton M112 on a SBC?
Posted: Tue Dec 16, 2008 5:20 pm
by Dom
Hi
This is my first post, I'm about to start rebuilding a chevy small block, 350ci 1 piece rear seal, built 86-88, 2 bolt main. It's for a cobra replica i'm building. I was going to keep everything standard and stick to about 240bhp, but i've just got the chance to get an Eaton M112 supercharger.
Has anyone fitted one of these to a SBC, do you have any advice on doing this?
Cheers, Dom
Posted: Tue Dec 16, 2008 5:35 pm
by Eliot
Hmm - might be a bit on the small side.
The holley/weiand 144 [low boost] blower is 144ci per rev - the eaton is 112 ci - so even smaller - so it will need to be spun hard and just generate extra heat.
Not saying it wouldn't work - but its not ideal.
Posted: Tue Dec 16, 2008 6:03 pm
by topcatcustom
6-71 with twin carbs
Might not be quite so replica-ey though!!!!!
Dont think I'd bother with a SC in a cobra, espec with a 350ci! Plenty of power to be got without a blower and it'll look more standard.
TC
Posted: Tue Dec 16, 2008 7:04 pm
by kiwicar
With an SBC on vortec heads (which you should have on an engine of this vintace with a single piece seal) you can easily and cheeply get 350 to 400 bhp or even just over normally aspirated, with a standard bottom end. Have look on the hotrod and carcraft websites for buildups. I would build to this spec first. If you want more then look at the super charger.
Mike
Posted: Tue Dec 16, 2008 8:09 pm
by Dom
Thank you for your quick replys, i've got no experence with superchargers, other than once driving a XKR, if it was going to be a simple bolt on and get good power gains i would have done it, but i've now decided not to buy it.
As you say, 240bhp in a car that is less than a ton should be quite nice for the time being, plus i wont have to worry about the clutch and gearbox taking the extra power.
Maybe i'll think about supercharging my next project, when i decide what it'll be.
Dom