ok, i need to work out (ie i need someone clever to tell me ) the most suitable supercharger for my engine

now, ive been looking at ebay (f**k me stuff's cheap in america ) and i think i've found something suitable:

http://cgi.ebay.com/ebaymotors/Eaton...40515723QQrdZ1

now its small, got a clutch on it (i can turn it on and off! yipee!) and seems to be the right sort of spec. it's off a merc SLK230 and says its an M62

also i've got a reccolection of somone telling me that 230merc superchargers "bolt straight on where the aircon went" so i think this is a blower thats been successfully used before

now, does this sound like the kinda thing i'm after?

ps i'm after a low boost setup aiming for similar power to a stage1 cossie (ie 260-300 ish, not too fussed about chasing figures)

 

For what you are saying there Jim, it will be perfect for what you want.

 

i would get a m90 jim

 

M90 seems like a hell of an overkill to me for 250bhp, but would certainly work.

If it was me though i wouldnt get an Mxx at all, i would get a rotrex SP30-94 on there or a procharger.

 

my mate is selling a merc charger. im sure i could get him to do you a decent price. He was selling the whole engine on ebay but nobody was really interested

 

M62 is fine.

M90s is crazy crazy overkill unless you going for crazy power.

Even a M45 can be pushed to about 230bhp, but thats obv too small on a 24v and would barely make any boost even revving the tits out the charger.

 

An M45 would be a good way of making a 230bhp@4500rpm car and set the limiter there, it would be ace as a daily driver like that

 

So my M90 is to big for my car then? And I was thinking it was about right. The two 12V I know that run Eatons both use M90's and we still only get 6 - 8 psi. And Jim my charger sits on top of the air con bracket. If you want ease of fitment I would tempted by a Rotrex although they do cost alot.

 

Yeah rotrex all the way. SP30-94, if you have the budget for it Jimbo?

M90 is what a manufacturer would use, big and understressed, but obviously slightly higher losses than an M62.

Have you tried a smaller pulley on yours if you want more boost, you are probably under driving it?

 

PS

As an example, have a look at this fellow (i think you might know him?)

http://www.xr4register.com/profiledavidward.php


He has a M90 on a 3.7 and its still not too small on that from what he says on that site, so one model down on a 2.9 sounds ideal

 

I'm currently running a 2:1 ratio so at 6000RPM its running at 12000RPM which eaton say is there max RPM.

Its about right size for a 2.9 or 3.7, Rob uses in his 2.9 very successfully. The M62 would be great on a 2.0 twinky though.

And yes I might know him.

 

chip yeah i know the bloke who's car tht is

price isnt huge issue on the chrager itself, especially if i'd save money on the installation. would one of these rotrex ones (theyre the ones that oook like turbos, right?) be a lot easier to mount up then?

 

Jim, mounting it is small beer, someone like aRSe will do it for you in a day no bother at all.

The rotrex is MUCH better for a revvy high comp engine as it makes lots of power at the top end where the volumetric effiency of the engine has tailed off more.

I would go for the SP30-94 if i were you and i could afford it, but you are talking 2 grand or so.

 

2grand? for a blower?

so, the M62 then...

 

Blower itself is about 1400-1500 + the vodka and tonic

Then you have belts and brackets etc, so a couple of K before mapping.


you can do the eaton for 500 notes.


The M90 is probably a better bet in the long run, as knowing you, you will want more later on, when i said M62 i was giving my preference for 250bhp.


M112 will do 400bhp+

 

I would go turbos Jim so much easer.

fanny moulds, boost performance good castings but the Mk1 version did not realy go in a sierra, more suited to kit cars. get some tubluar onemad expensive and you would have to loose your car for week or two and will cost.

I will not talk about the Topboss ones as you will not purchase them

 

My M90 cost Ł500 brand new. At work we have a rotrex C36 (big 600BHP jobbie) and that cost about Ł1500 but its very compact, simular to a large turbo but the Eaton is quite long and wide which might couse problems. I did hear Top Boss was working on a twin M45 setup for the 24v this may be down to space limitations.

 

ok m62, get someone to knock up a few brackets, get some pipes made up... bish bash bosh job done

how the feck do i mount the throttle on the blower tho... lol

 

Like sparkplug has mate, go and look at his pics, its all there!

 

is sparkplug david ward from XR4 register?

i'm confused

 

Yes I am, why?

 

ah... hello mate

 

Hello, I thought you might spot the car in my sig. BTW yours did very well on the roller the other week, have you got your emerald fitted yet?

As for throttle location etc have a look at: http://www.rotrex.eu.com/files/Rotre...tions-V1.0.pdf which has a section on this. Also check eatons website for size info but remember you need to get the air in and out of the charger which makes the charger alot bigger and more of a pain in the arse to fit. I think you saw mine at fitp last year and you might remember that the charger hits the bonnet at times and I think I've got a bit more room as it only a 12v.

 

i'm hoping if i use a smaller blower than the M90 i wont have space issues (hoping )

yeah i had a good nose round at FITP... awesome install

emerald gets fitted tomorrow (well, started tomorrow, will be a few weeks before its ready) so hopefully it'll go well after that

i'll check out those sites, thanks

 

im with sparkplug on the m62,
it will not flow the amount of air you need..
(m62 might just push 7psi but will be very hot charge temps and once ya intercool it the boost drops!)
im not sure if this link will work but this is a mazda blower that fits!
http://www.fordpower-uk.co.uk/index....pe=post&id=247

this gives up to 7psi boost intercooled, 9 psi non cooled, but more than enough to light up the wheels on a roundabout on my 4x4,,,

p.s. get a set of BOB cams and washers fitted with the new ecu you should see 230+bhp and a nice amout of powergains all through.
(mine made 236bhp N/A.)
tony

 

Tony, can you give a ball park figure how much it cost to get your set-up, just to give an idea.

 

tony, i cant see the link (not registered) but is that the blower you had on yours? if so i definately wouldnt consider that fitting well, i'm after something much more compact

also i'm not chasing power figured, 300 is my absolute "wow i'd be SOOOO happy if it ever ever made that" figure. i'm really after 260-280.

also i have cams (not BOB, aftermarket reprofiled jobs from kent) waiting to go in (by waiting i mean i need to post them to kent to regrind them still... lol) waiting to go in and i'm hoping to get some manifolds made up soon. so i should see reasonable power with that lot before boost added.

I'm also looking at replacing my plenum, but i dont like the twin throttle setup on yours/mikey's one. Do you do a version with a single large throttle body (bit like fitz's with a single cossie throttle on the front) as that'd suit me much better

 

jimbo, this is not all the costs but enough as a guide!

bottom pullie Ł200
plenum Ł450
charger via e bay USA Ł300
belt Ł20
aircon bracket with modded tesioner,, 5hours work
blower bracket 7hours work with Ł15 of steel
modded throttle/end case Ł150.
modded rover alloy intercooler Ł25
pefect power add-on Ł250+vat
2x 345cc injectors secondhand Ł50

note...non of this is for sale, its posted as an example of the costs involved on my supercharger kit, to give jim a ball park figure.

jim g,
the BOB cams are the same profile as the cossie YB, IMO ya cant get to much better than that for this engine, mine cost me Ł14.99 of e bay
i have two settings now, the normal road setting uses the BOB washers and thats ideal for daily use , i also reset the cam timing, for track use, this has less power below 4000rpm but above that it flys..

tony

 

madoldbugger
i have sent you a pm regarding your avatar
could you please either resize it or remove it
many thanks

 

 

Bloody hell Tony - how the frig are you long time no see

oh, and your avatar is too big fella

 

well hello paul
im eerrmm broke, oily and older!
but well i guess

regards
tony

 

makes 2 of us then chap, i'm in a pickle - fiesta engine hasexpired so i may not be able to goto germany again in april, if i buy a new runabout, which i will need

 

paul, you have a PM

 

i'm expecting to pay a bit more than that to be honest tony.

camwise i'm happy to stick to the kent ones even tho theyre more expensive. the thing i'm going to struggle with as far as i can tell it:

monting blower (inc brackets and belt runs etc.)
mounting intercooler (space is at a premium)
getting a suitable plenum+throttle

 

Price seems pretty good for such a big power and torque increase. I'm getting married in June but after that should have a bit of disposable income and really fancy a supercharger myself.

 

What type of belt does the 24v use, if its a like most modern engines it will have a single poly V belt (I think that is what they are called, flat with ribs). Then you should not need to mod the pulleys just add the charger to the existing belt run using a longer belt simular I would think to a car with air con .

You may also need to change the map sensor and you may have fun with the throttle cable due to mounting the throttle further away.

As for M62 I worried its a bit small as mine with the huge intercooler (so big pressure drop and thus less boost) all I get is about 7-8 psi according to my autometer gauge (with peak hold memory) last time I took the car out. But that said it may be worth a try as you will use less power to drive the charger so you might get the power you want from it.

 

M90 is totally fine

I've run one at 2.26:1 b4 now and melted the blower was kicking out muchos boost and heat was amusing 600 quid blower down the drain live and learn

Dave i'm pratty sure our M90's will go to 14k if i'm not mistaken.

the key is to keep the outlet temps down and it's not just by bunging a IC on.

Jim if you need a blower a have a medium length snout M90 spare that is in good nick. for the right price i will part with it as i was reserving it for a another project.

As for M90 being too large it's bull being running one for years

 

The fact you ahve run one without problems doesnt make it the optimum charger to use.

I know of people with 240bhp cossies running on T34.63 (well everyone who bought an escos really) but a T3 would do the job better at that power level!


Jim needs to make his mind up on what power he wants IMHO
A correctly installed and mapped M62 should comfortable see his 260bhp target, but if he wants 300bhp or more than an M90 sounds good to me.

 

I've been told that before but I've been unable to get details from eaton on this so I did not want to suggest is could go faster then find out later it can't.

See Fast Ford, out tomorrow, for a photo shoot they did on my car.

Dave