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Location:
Canberra
Registered:
October 2004
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 MR2 supercharger on a 22re
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Mon, 08 November 2004 23:34
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Hey guys maybe someone could give me some advice. I found a MR2 supercharger for sale near me.
How much should I pay?
Does it need an oil line to it for lube?
How can you control the boost ie. blow off valve?
I should say I was toying with the idea of putting in on my hilux running low boost so I don't have to do any bottom end, but I have no experience with turbos or superchargers?
Whats something like this expected to cost?? 
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Location:
Toronto, Downtown
Registered:
September 2004
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Location:
Canberra
Registered:
October 2004
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Re: MR2 supercharger on a 22re
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Tue, 09 November 2004 01:57
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Thanks mate thats great advice!
I've got a some extractors for it already and I was going to upgrade the exhuast when I do the efi. Which is very soon.
But I thought of doing the supercharger as well, apparently the one I'm looking at has a electronic clutch like aircon, don't know how useful this is. Maybe I could turn it on when I need extra power, if the ecu can be incorporated to reconise this and change the mapping to suit?
Is an intercooler recommended, will it suffer heatsink in a 4wd?
With the pipeing where does it run on a supercharger? On a n/s you have airbox > afm > manifold
is there a return air? or does it bleed extra pressure into the atmostphere or just the pulleys set it and thats it?
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Location:
Toronto, Downtown
Registered:
September 2004
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Re: MR2 supercharger on a 22re
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Tue, 09 November 2004 03:29
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didnt realise the engine was a carby running it on efi would be much better. the afm needs to be placed infront of the supercharger. A intercooler is very adviseable to keep detonation away from a high comp n/a motor. If the i/c is front mounted there is no reason why it would suffer heat sink unless your making black lines for 10 minuites. an i/c to look for would be a vr4 galant item i guess or you might be able to pick up an aftermarket one on the forums here for cheap. The clutch is activated when the engine is not under load in the mr2 but i dont know if an aftermarket management can make this work. The supercharger would idealy be mounted on the exhaust side of the engine so that the intercooler piping can run from the supercharger to the front bar throught the intercooler and back to the inlet manifold.
The boost pressure is set by the pulley.
When you get your efi setup try to find some large injectors and buy a fully programable engine management instead of the standard ecu if you are planning to s/c it as there is no point in spending money twice. I dont know how large the hilux motor is but i think 365cc to 400cc injectors would be sufficient for 8psi of boost.
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Location:
Canberra
Registered:
October 2004
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Re: MR2 supercharger on a 22re
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Tue, 09 November 2004 05:59
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Thanks gave me heaps to think about. I'll have to keep my eyes open for a second hand ecu. I have a spare 22r do you think its a good idea to pull the head off that and get the ports matched to the extractors? What else should I do to the head?
Cheers
Anthony
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Location:
Toronto, Downtown
Registered:
September 2004
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Re: MR2 supercharger on a 22re
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Tue, 09 November 2004 06:55
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i think if you want to do something to the engine while its out of the car is probably the best time to do it. However if your on a tight budget and your gonna pay some1 to port it dont bother unless the supercharger will give u a good kick in the pants to keep u entertained for a while.
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Location:
Bundaberg, Qld.
Registered:
May 2002
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Re: MR2 supercharger on a 22re
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Tue, 09 November 2004 11:53
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if i can pick up a sc12 cheap enough i will be putting it on my Feroza for some extra low down grunt that it needs in the sand etc when i am out sand bashing and camping. a turbo will be heaps easier for me to put on but i would have to find someting small like the original exa turbo, as i need low to mid range torque.
it's EFI so adapting the s/c will be prity easy to get running compared to carby kinda, it's more the space to mount it and figureing out the belt set-up that's the hard bit. i would be relocating the thottle body before the s/c as the 4agze system does too.
for starters useing a 4agze i/c front mounted with a fan behind it, but prefer to make up a w2a system as when 4wding you spend more time at low speeds and higher revs. wont really get good air flow through the a2a i/c to make it a effeient system.
at the moment my mate and i are putting my old sc12 i sold him ages ago onto his VW Manx buggy, it'll be running a suck through carby set-up and water injection (he doesnt want to have a i/c sticking up at the rear).
should be interesting to see how it goes if we dont blow the fooker up. haha
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Location:
Canberra
Registered:
October 2004
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Re: MR2 supercharger on a 22re
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Tue, 09 November 2004 22:34
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Cool,
I was after low end torque as well, I just thought since I have a spare long 22r(blown head gasket) I could use the parts from this to setup the engine and then swap all the bits over. My hilux is still drviing at the momment.
how much is it to port the head what would I gain?
At the moment I ussually rev up to 3000rpm and when going harder 4000-4500rpm anything else is a waste of time and fuel. 
do you think I will benifet from a i/c, i do like the idea of cooler induction especially wen crawling up a hill on a hot day.
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Location:
Bundaberg, Qld.
Registered:
May 2002
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Re: MR2 supercharger on a 22re
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Tue, 09 November 2004 23:07
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you should deffinatly think about a i/c, if not water injection for when you are on boost.
http://www.aquamist.co.uk/
http://users.frii.com/maphill/wi.html
i'm not the full bottle on gains acheived from head work, i dont see what it would do in your favour when you arent after a HP hero lux.
yeah, i only take the feroza to about 4500rpm when it really starts to get boggy or i wanna keep a constant speed through a track. i want boost as most revs below that it starts to die in the ass.
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Location:
Toronto, Downtown
Registered:
September 2004
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Re: MR2 supercharger on a 22re
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Wed, 10 November 2004 00:04
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Dont bother porting the head as its more than likley your exhaust thats holding the engine back not the head. Unless you can grap a die grinder and have a hack yourself.
You will only gain a handful of hp by porting the head on low boost application i think.
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Location:
Canberra
Registered:
October 2004
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Re: MR2 supercharger on a 22re
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Wed, 10 November 2004 00:33
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As a matter of fact I do have a numatic die grinder, I just haven't used it yet. 
I haven't done this before. I'm guessing I put the extractors up next to the head and trace arround and then shave arround till I get a the same diameter opening, as in no lip.? Is it easy to do? 
The one thing I will have trouble with is making a mounting bracket for the s/c? Who/where would you find someone to do that?
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Location:
Toronto, Downtown
Registered:
September 2004
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Re: MR2 supercharger on a 22re
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Wed, 10 November 2004 02:23
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the mr2 supercharge has its own oil supply
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Location:
Canberra
Registered:
October 2004
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Re: MR2 supercharger on a 22re
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Thu, 11 November 2004 02:50
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Thanks again.
My friend says he has a book on porting might look in to it as I have this spare engine and wanna alteast put it to good use. Had a look at the water injection? Much does a simiple one cost? and how reliable are they, seems to me if it fails underboost your engine could denotant? is this right?
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Registered:
September 2002
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Re: MR2 supercharger on a 22re
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Fri, 12 November 2004 10:20
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definately go with an intercooler, I'm about to install a suby water/air setup. Your car will get very hot very quickly 4wheeling unless you do and water injection will not solve any problems as it will be on flat out.
I have supercharged my 4y-c hilux 4wd, driving around town and on the freeway temps are ok (still pretty warm but) and water injection setup works well to regulate any rise in temp and will 2ltrs would last around 80-100km . However for example when driving the vehicle on the beach the temps just kept rising and the water injection helped a bit but water ran out very quickly.
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Location:
Canberra
Registered:
October 2004
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Re: MR2 supercharger on a 22re
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Fri, 12 November 2004 11:39
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Thanks Cplux
Hope I'm not getting in over my head 
Cplux did you get better economy with the s/c on your hilux and did you get better torque, was it worth it?
is there room to mount a front I/c?
Did you make your own bracket for the s/c?
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Location:
Toronto, Downtown
Registered:
September 2004
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Re: MR2 supercharger on a 22re
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Fri, 12 November 2004 13:00
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water injection can seriously ruin your supercharger if not your motor if installed incorrectly. It does have good results but just a bit backyard for me.
Install a decent w/a ic if you use a liberty w/a unit and u want to do alot of slow speed 4wd driving then install a better water pump and a bigger heat exchanger think radiator size and a water storage unit for extra water capacity about 2-4 ltrs. With all this you wont need water injection.
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Registered:
September 2002
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Re: MR2 supercharger on a 22re
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Fri, 12 November 2004 17:38
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Economy at the moment is pretty poor actually, beacuse the intake temps are warm-hot without an i/c the computer is trying to dump more fuel in to cool things i think. Also i had it tuned for max power at the sacrifice of economy.
HEAPS more torque 20-25 + percent easy i'd have to say
power was 30% higher than stock on dyno
You probably could mount an i/c out front, but I'm currently cramming in a top mount liberty w/a one far better for 4wheeling
Yes i did make up my own brackets, not too hard just need to watch pulley alignment.
Craig
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Location:
Canberra
Registered:
October 2004
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Re: MR2 supercharger on a 22re
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Mon, 15 November 2004 03:38
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Is a w/a intercooler easy to install?
Do you put inbetween the raidiator outlet and head??
thanks
how much is a liberty i/c??
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