supercharging pinto engine!!!

[grimfandango]

hi people so has anybody done it? or possibley a turbo conversion? although i always liked the idea of a supercharger over a turbo, and i dont want to mess about with the exhaust! but if theres a suitible turbo manifold that would bolt onto my engine that could persuade me to go down the turbo route!

so anybody got any ideas on how to do this? looks like it'll probabley have to be mounted on the exhaust side of the engine with some pipework over the engine to the inlet manifold, as there seems to be far to much in the way on that side.

is the eaton m45 mini supercharger the best to go for, or are there better ones? although bear in mind im looking at around the £100 mark!

and would i have to get a crankshaft pully made up or is there anybody that supplies them or even makes them? or indeed is there any way i could knock one up myself (without a lathe!).

[grimfandango]

its a 2 liter pinto, i have got old book about supercharging here somewhere so looks like i'll be digging that up to be honest im not sure how much extra hp i'm looking for? somewhere between 20-50 i'd imagine on what im going to assume is a standard 100hp engine, (it could well be more than that as i belive the cams been changed and its got a tubeular manifold???) although extra would always be nice i'm not sure how much my engine would take with most of it being standard?

i was looking at the m45 as in the article in pcc it said 'you want to use the smallest unit which will do the job your looking for, that way its running in its most efficient zoneand your getting the best all round performance' ???

but would it be better to go up a size to the m62 just to be on the safe side!? just a question though, as superchargers draw power from the engine, i assume a bigger supercharger draws more power? so at some point will you see the power go down with the bigger supercharger youve put on???

[grimfandango]

CorseChris said:

An M045 would work fine I think for your 2l. FWIW, it's probably what I would pick for a moderate level of boost for a 2l. An M62 is probably OK as well, but you'd find boost dropping off a bit at lower revs as you'd be running it slower. This is where I'm at with an M90 on a 3l with a 1.6:1 drive ratio.

If you wanted (very!) roughly 7psi, then you'd want to run an M045 at about 2.1 x crank speed. That's well inside the spec for the blower revs-wise on a pinto.

Liek most things, it's simple in principle but complicated in practice. Read what you can, see what others have done then just suck it and see. It's what I'm doing anyway

BTW, mine goes onto the rollers tomorrow so I'll post up my results on Thurs, good or bad.

thanks that was sort of what i was aiming at, although i was going to leave charge cooling for a later project, although its probabley best to do it all at once as these things often are;) intercoolers dont seem to be dear so should be able to get one for not to much

BoRED S2upid said:

It seems like a lot of time, effort and possibly money for not much gain. I was thinking the same on a classic mini, how to increase BHP on the old engine a mechanice friend of mine simply said why continue with the old engine change it to a modern unit.

originally i intended to swap the engine. v6 cosworth was probabley favorite as it could be picked up for a few hundred quid and should more or less bolt straight on, but then i found out it wont, and i would need new bellhousing and clutch bits. not to mention ive got to buy a engine go and fetch it, borrow a lift ect. so chances are i would never acctually get round to it. so getting a cheap super charger and messing about with brackets and bits of pipe is probabley more realistic. although it may be a project for another day. it'll kick out way more power than a supercharger would on my pinto. plus i'll have a spare supercharger