SuperCharging an M42-Opinions? Whats needed?

[deano325t]

you can route the brake vacuum and rocker vent to the other side of the blower ..(the suction side) if its a problem
my rocker vent goes to just before my turbo

Dean

[hoshy]

cheers lennie, always like to makesure I understand these things. so here's another question... anybody...

What exactly do the pipes to the servo do? and what sort of pressure or vacume are they designed to work with? I'm just wondering when, why and whoch way they operate. sorry I'm an engine n00b

[Turbo-Brown]

The hose to the servo should only see vacuum which is supplies to the servo.

If you're pressure charging an engine, there should be a one way valve installed in the hose which lets air from the servo travel to the engine, but not back again (when under boost)

Lots of cars seem to have a one way valve installed anyway which I believe is to safeguard against oily fumes finding their way into the servo and perishing the diaphragm.

EDIT> Hmmm, thinking about it, if you connect the vacuum hose inbetween the throttle and the supercharger (the charger's downstream of the throttle with the eaton's isn't it?) then you'd always have a vacuum, even when the compressor bypass valve's open

[hoshy]

Thanks turbo-brown. I'm with ypu up until the edit but then I lose you. If the vacume hose is connected between the cahrger and throttle, i.e moved from behind to infront of the butterfly if I understand what you mean.. wouldn't that mean pressure would be applied to the all the time and never vacume?

[Turbo-Brown]

Aah, don't think I explained it all that well

What you have is:

Air filter-----Throttle body--*-1-Supercharger--2--Engine

So the air comes in through the filter, you meter it into the supercharger with the throttle, the 'charger compresses the air and supplies it to the engine.

Now if you connect the vacuum hose to the bit with the *, you can see that it's on the side of the 'charger that's being drawn from, not blown to so it always sees a vacuum.

Now the bypass valve is connected at points 1 & 2 and typically is operated by a vacuum in hose 2 so that when under light load or when the throttle's shut, the compressor's bypassed. This means that normal engine vacuum exists in hose 2 all the way back to the throttle body and so at point *, there's still a vacuum to operate the servo

[hoshy]

ah ah, now I see, it was my error. I always assumed that the throttle body was on the exit of the charger.

if this is the case does the maf also go before the charger?

I always imagined

filter -> charger *-> maf -> tb ** -> engine

* some kind of blow off valve
** brake vacuum with one-way valve

It seems this is incorrect?

I'd not considered a light load bypass system.

cheers.

[Omi]

How did I miss this until now?!

Can I please be added to the list?

I'm going to have a spare iS to play with, so I can try this and/or a turbo before going ahead with putting it on the road car. Should be easy enough to put a user-guide to it at the same time too.

[E30Mark]

How did I miss this until now?!

Can I please be added to the list?

I'm going to have a spare iS to play with, so I can try this and/or a turbo before going ahead with putting it on the road car. Should be easy enough to put a user-guide to it at the same time too.

Same here, how long has this thread been going.... i've had my head stuck in the sand too long!

Is it too late to jump in???

[SwirlyE30]

Just to update. I may be up for doing this on my new is engine going in soon, do people not think that more than 170bhp is achievable? I thought the mini superchargers were good to up to 200ish.

Anyway on getting 200! Maybe using two

[SHAKEELE30]

will the mini supercharger fit on a e30 325, if so how much is it for the turbo, is it difficult to put on. what else would be needed to fit it on.

[frosted]

note- still on. will update when i know from my mate how many he has aqquired.

regards,

frosted

[hoshy]

sweet dude

[320Touring]

[hoshy]

hey frosted mate. was talking to 320touring today about the m45 and just thought I'd ask how things were lookin????

[frosted]

yeah good mate. current standing is at 6 i belive. mates been away for a few weeks. back end of month and then were gonna sort it all out.

soz this is taking so long plp!

[hoshy]

no need to be sorry man. cheers for the update! sounds like things are very !!!

I can feel the boost already

[Demlotcrew]

Looking good dude!

A

[320Touring]

yeah good mate. current standing is at 6 i belive. mates been away for a few weeks. back end of month and then were gonna sort it all out.

soz this is taking so long plp!

hey frosted, any more word mate????

cheers

neil

[hoshy]

mmmmm supercharger

[Russ]

So has anyone actually recieved a supercharger yet? Its been 4 months now!

No one was actually niave enough to believe you were going to get them were you?

[hoshy]

So has anyone actually recieved a supercharger yet? Its been 4 months now!

No one was actually niave enough to believe you were going to get them were you?

I live in hopes.

I'm not ready to fit one yet anyway as I've got other stuff to get so if one turns up for free then all good. if not then it's not the end of the world. but as they say you gotta be in it to win it.

[frosted]

No one was actually niave enough to believe you were going to get them were you?

since im running 3 full time businesss as teh moment how does "go fu*k yourself sound russ" sound?


im still waiting on my mate to check there all ok and packeage em so i could send them out. hes having to be carefull becuase he does not want to lose his job over it.

[Demlotcrew]

I dont mind waiting, the guy is doing us a favour and its on his time scales.

Frosted, dont worry about russ he has a sense of humour that requires some adjusting to understand. I wont say anymore.

A

[frosted]

grin, yeah im not really bothered. doing coldfusion with a client on the phone yelling at me and then reading that i was like DAMN IT!

[Demlotcrew]

grin, yeah im not really bothered. doing coldfusion with a client on the phone yelling at me and then reading that i was like DAMN IT!

Well hes only a little guy so you can say what ever you like, hes not going to do shit about it!

A

[Russ]

Just pointing out that it seems very unlikely that the event would happen. Why on earth would "Your mate" give these away when he could get Ԛ£150 each for them if he flogged them on Fleabay?

Demlot how about you stop being such an arrogant prick? Its really easy to play the macho man whilst hiding behind the keyboard.

Dont say things on the forums that you wouldnt say to my face.

[Demlotcrew]

Dont say things on the forums that you wouldnt say to my face.

[Jhonno]

Play nice guys....














Or i'll come and knock your heads together

[Russ]

He started it! ;)

[frosted]

funney shit

wel without sounding like a twat, prob will anyway

150 a pop WOW! dont really mean fu*k all to me considering i charge 500-1000 A day for what i do. plus the time it takes to sell on ebay not worth it. plus they were free and im not a cu*t.

people making comments like ur self and i can understand why people would think sod it ill sell em them.

[Russ]

150 a pop WOW! dont really mean fu*k all to me considering i charge 500-1000 A day for what i do.

I'll resist the easy rent boy jibe!

plus they were free and im not a cu*t.

I never called you that. Selling something wouldn't make you, as you so eloquently put it, "a c***"

This mate of your is supposed to have "loads" - so 10 chargers @ Ԛ£150 each is hardly to be sniffed at is it.

people making comments like ur self and i can understand why people would think sod it ill sell em them.

eh?

[frosted]

thought id help a good forum which has given me ooooodels of advice.

1500, not be sniffed at. but hardly mega bucks. not as far as im concerned anyhow.

anyway dont have time for this crap

will msg again when it all done.

[320Touring]

Russ and frosted, chill

Russ was being funny, and TBH the joke prob didnt come across just right

frosted, I can understand that your mate is trying his best for us, please pass him my thanks!

and also can I thank you for organising this

we gotta be one big happy family

[Russ]

1500, not be sniffed at. but hardly mega bucks. not as far as im concerned anyhow.

Wow, your mother must be so proud.

Russ was being funny, and TBH the joke prob didnt come across just right

I wasnt actually, I was being perfectly serious. Just seems like a long time for this plan to come to fruition.

If it happens, all well and good, just doing my bit to speed things along!

[frosted]

Wow, your mother must be so proud.

no im proud. all self made.

and you really seem like a bloody idiot who is trying to wind poeple up for no reason. cant leave it have to put another post?


4 months not really that long considering he has to be carefull when "aqquiring" the chargers from his work. plus not every bloody mini has the upgrade so it takes a while to get a decent number together.

hurrying up? no relevence to you at all this thread. not planning on using one on the mr2 are you?