Mini MPi GT1752 Turbo
Turbo Mini Forums

Hey guys, first post so be gentle (:

I have a 1998 rover mini cooper MPi and would like a bit more poke. 55bhp just doesn't cut it any more. I have been juggling with the ideas of either installing a vtec, installing a turbo, or just trying to squeeze more power out with a stage 3 kit.
I am very tempted the idea of a turbo and from browsing the forum it seems like the one off a saab 93/95 is the one for me.

My plan is to do all the usual pluming in that the turbo needs, and keep the mini mpi injection system. I am planning on building a nice plenum chamber and having the injectors on there. Will obviously getting the usual new 4 pinion, uprated fuel pump etc for the build as well. Was also hoping to get the block bored out to a 1310 as well if I have the cash

I presume that keeping the fi system won't be a problem as all I am doing is squeezing more air in to the engine

What do you guys think? Will it work? Any problems that I might run in to? Potential power output?

Cheers in advance guys!

In short .....No. Not unless you bin the rover ECU.

I would be careful with the plenum arrangement as well, would certainly be worth looking at the SC injection throttle body arrangment which can be used on FI.

The standard fuel pump arrangment will probably be adequate for what you need as well.

If I was going down the late mpi car route again and wanted something relatively simple, effective and easily mot,d then I would probably fit an older engine so the emission regs are easier and go down the typical carb install or injection with a wet fannymold type configuration if on a 5 port........just my opinions though!

Edited by Andy500 on 22nd Nov, 2012.

Squeezing more air in will require more fuel. The mpi system isn't up to the job.

Easiest way is to slap on a carb. Best way is it do some clever injection stuff that Paul S, Jean and Rod can help you with.

In the 13's at last!.. Just

Thanks for the help guys
I presume because the rover ECU is closed loop it cannot be programmed to provide more fuel that the system needs.
SO, if I binned the rover ECU and sorted out a 3rd party map-able ecu, would the original injectors be able to provide enough fuel for say a turbo to run at 10psi?

I presume this is also the case if a supercharger was fitted as well.

Also, I hear the MPi gear box is a bit "crumbly". Would it be able to withstand the power of a 10psi setup?

I see paul S is manufacturing some nice looking injector bosses. Very tasty, will have to look more in to that

Have a read of this to give you an idea of what is involved.

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=408438

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Cheers guys! I tried to use the search before I posted but as you can see I haven't done a very good job of it

Another quick question whilst the thread is fresh, my MPi radiator fan has packed up recently. Stripped it down but couldn't get it to work. Are there any cheap options that will fit the MPi rad? Replacement MPi fans are rather overpriced.
Also was thinking of upgrading the rad when installing a turbo. Do you guys have any front mounted radiators that you would recommend?
Cheers

http://www.twinkam.co.uk/shop/category_7/E...Management.html


This is a good starting point as well.

BTW, the MPi rad is pretty good, why would you want to upgrade?

http://www.jbperf.com/

the mpi rad is poop. didn't come close to keeping cool on a moderate turbo engine.

This looks pretty good!
http://www.twinkam.co.uk/shop/article_SC22...3DSC220B.001%26

This is pretty much exactly what I need to tune my engine past the 90bhp limit.

The 7 port stuff looks real tasty but I would have to do a lot of saving.

Cheers for the link TurboDave. All this help much appreciated.

Does anyone know of anybody that has used this kit before for a fi turbo engine? I presume I can just take the air filter off and attach hoses to it to come from the intercooler.
If this all goes well I shall seriously be considering some 7 port injecting

Here we go again, lol

lets not forget the fact that Matt Woods has in the last year set up an injected wet manifold turbo pushing 200hp. Certainly more hp than any of the port injected set ups in the last 5 years. unless I missed something

On 23rd Nov, 2012 Sprocket said:

On 23rd Nov, 2012 jbelanger said:

On 23rd Nov, 2012 TurboDave16V said:
http://www.twinkam.co.uk/shop/category_7/Engine-Management.html


This is a good starting point as well.

BTW, the MPi rad is pretty good, why would you want to upgrade?

Am I seeing this correctly in that their MPi kit is actually their throttle body injection adapted to the MPI manifold? So that makes it a wet manifold setup?

Jean

Read it again

http://www.jbperf.com/

Edited by apbellamy on 24th Nov, 2012.

Taking everyone's points in to consideration I think I will stick with the MPi rad for now and upgrade if necessary. I won't be thrashing the engine too much, just on the odd track day to leave some tuned mk2 golfs in the dust