Eaton m45 / m62 / m90
Turbo Mini Forums

Hi all

I'm gonna be getting a supercharger fro my mpi shortly and have a couple of q's

could i get either the m 62 or m 90 under the bonnett? and if so would it work? or would it really need some extensive mods and testing?
if it would work what sort of figures do you think would be looking at? i know that stu @ vmax says i'm looking at around 150 - 160 bhp with my current spec using the m45. which rr'd at 98 bananas and 98 curley wurleys.

only asking as i know the m 62/90 have not been done before something pioneering if you get my drift?


Dev

TurboDave said

"Fab's right of course.

Maybe you should take your styling ideas off the French instead! "

I think the m45 moves enough air for upto around 180BHP.

Assuming the MINI uses an m45 they go to 220bhp.

Alex

AlexF

at risk of getting out of my depth by going into thermo dynamics....

Yes they'll make that power on the bimmer, but on a mini engine you need more boost to make that kind power due to the size of the engine, and the rootes blower isn't the best suited to high pressure.

also the Bimmer is intercooled where most mini installs won't be.

mini1071s - no it isn't the stock spi, its MPI. but i can pm you the spec if you like?

mini 13 - i'm thinking of runnig the vmax charge cooler so that would help.... i think.

maybe try to contact stu and see what he thinks.
dev

TurboDave said

"Fab's right of course.

Maybe you should take your styling ideas off the French instead! "

i've never seen an M45 go that well to be honest. people claim a lot but ive never seen one go as well as a turbo mini with 150 bananas.

i'm sure the supercharger sounds good on paper but the surge from a turbo is adictive.

i should be recomending the charger, so preventing there being yet another turbo mini. BUT the turbo surge is so adictive.

thats it i'm using the mini tonight, i need my fix of boost. ( mmmmm boooost )

I'd like to have a go in a charged mini to see what they're like.

I reckon the power will be a bit limited due to the problem of intercooling them but they're probably a nice fast daily driver due to the bottom end.

I was up at vmax friday, Stu's a helpful bloke, but he's developed the package, and could be less than keen to give away his ideas unless you spend some money with him.

Supercharged Stu is definately different to Stuart Gurr from Vmax.

Supercharged Stu chose the over-sized DB& unti for his - but these are still rootes blowers that don't like high boost no matter what you do to them.

As regards the spec of Devs's mini to make the power he says - do realise he mentioned bananas and CurlyWurly's... IE he understands the way we work around here LOL!

Ahh,

Ive re-read this, and I'm at cross purposes,

I didn't realize you looking at vmax stuff, I assumed you were looking at making your own kit, hence stu (at vmax) maybe being less than willing to give away ideas.

These are the only superchargers I'd currently consider. Although I don't know much about them, they are a beautiful bit of kit.

http://www.rotrex.com/

Wil

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

Stu from Cornwall (aarrgghh! ANOTHER STU, WTF is it with that name and the obsession with superchargers?) seems to be the most knowledgable on this site when it comes to the different blowers IMO.

Stu from cornwall aka hedgemonkey,

the supercharger kit that minispares is/was floging is/was based on the lysholm blower, these are supposed to be as efficient as turbo compressors, they were available from sprintex and whipple industries, not cheap though!

mini1071s - cause some of the spec i'm not sure of. ie. the guy who built my car, couldnt remember the exact bits he used. ie dished pistons but couldnt recall what to. Basically when he bought it he ripped theengine apart and replaced most of the internals.

But as TD says bananas and curley wurleys wise its been on two rr's and made slighlty more on the second one. but as i didnt rr it standard i dont know what it was making before "90 bhp" kit was added.

I'll get some pics and post it though.

I know stu wont part with the secrets of it but he does the kit fitted and i want to build it myself over the winter. its an educational thing.

just as a matter of interest would i be better if going TC rather than SC with a T25 or T2?

Dev

TurboDave said

"Fab's right of course.

Maybe you should take your styling ideas off the French instead! "

Dev - Without a doubt, the Turbo will make more bananas. BUT you need to decide what you want. You have to retain the MPi flywheel setup, so you're limited on what you can do clutch-wise, so your outright power is limited.

In that respect - a SC could well be a better option IMO...

The Dysys unit I told you about will controll another set of injectors happily, so the fuelling shouldn't be an issue TBH. Oh - that's another thing, SC fuelling is a lot easier to sort than Turbo fuelling, so that's another pointer for the SC.

No its defo gonna be SC.

I've looked in to the quad injector route as i discussed but i think its a bit advanced for me at this stage.

dev

TurboDave said

"Fab's right of course.

Maybe you should take your styling ideas off the French instead! "

Well, you're going to be pissing in the wind then as for even 7psi you'll need around 50% more fuel than your MPi injectors are already maxing out to given your current mods...

The Vmax setup runs extra injectors btw - but does them on a wet-manifold basis...

thats only cos i havent finished reading about it matey.

when i spoke to stu @ vmax he told me he just runs two injectors!? hmmm keeping his thingys secret!!

right quad it is then.

Dev

TurboDave said

"Fab's right of course.

Maybe you should take your styling ideas off the French instead! "

Sorry - I mis-understood what you meant about "at this stage"

I understand Vmax has two injectors hidden under the SC in the fabricated manifold, and two up near the throttle body?

I might be wrong - but I'm sure it's been described before by someone who had the conversion.
There are some bods discussing it on minifinity recently - maybe they're ideal to ask for if it does run extra injectors (It must do though - you'd struggle to get enough fuel from just the two methinks; we also know the stock MPi injector is a VERY high flowing unit already as well)...

Edited by TurboDave16V on 31st Jul, 2006.

Dont worry about it mate. Just trying to get my head round the science of it. got a basic grasp but some of the tech stuff is just wooosh over my head.

do you guys speak english?

TurboDave said

"Fab's right of course.

Maybe you should take your styling ideas off the French instead! "

jsut tp pipe in quickly, there is a mini up this way runnign a rotrex supercharger, so defo do-able.

also been in and raced against a few saxo's equipped with rotrex bloweres and they go exceptionally well, and there warranty service is exxelent aswell.

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

right where can i get my hands on a second set of injectors MJY100460 there are no mpi's in the scrappers round here?

TurboDave said

"Fab's right of course.

Maybe you should take your styling ideas off the French instead! "

Do a search on the internet to see if the injectors are fitted to any other Rover vehicles.....if you are lucky you may find for example a 2.0 litre Rover may use them?

quick search of this forum says there used in dizzyless rover 2.0 turbo's. so try nagging your local rover enthusiasts.

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

200/400
=> 92 (M series) MYJ10011
92=>96 (T nasp) MJY10029
92=>96(T Turbo) MJY10023

600
=>AM246796 (T Turbo) MJY10023
BM246797=> (T Turbo wasted spark?) MJY100460

800
91=>AM152056 (T nasp) MJY10011
AM152057=>230966 (T nasp) MJY10029
91=>230966 (T turbo) MJY10023
96(230967)=>(T Turbo + nasp) MJY100460

MJY100460 also fits
MPI Mini
RT420 T nasp





Just ask the daddy

Edited by TurboDave16V on 2nd Aug, 2006.

TD - how much of the loom am i gonna need for this i reckon at least the from injectors back to the main part but should i cut further back?

just off to scrappers on sat with some snips.

dev

TurboDave said

"Fab's right of course.

Maybe you should take your styling ideas off the French instead! "