are the rover mini's a centre point injection or did they ever come out with a multi point injection set up.

if anyone has a photo of there manifold setup they could send me that would be great. as im interested to know how they are done

thanks Jacob

yeah there is single point injection (spi, 91 - 99) and multipoint injection (mpi, 99 - 02.) Same head though (mini 5 port) so MPI minis still had only 2 injectors. Both produced the same horsepower but the MPI had a little more torque

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Noli Illegitimi Carborundum

I would call the Rover Mini's MPI setup a `TPI' system, it's not `MPI' in the accepted sense of 1 injector per cylinder. Just not enough intake ports...

Has anybody yet got serious power from an MPI?
A 5 port 1330 with 45 Weber has now made over 160HP at the crank on GR's engine dyno, a hard number to beat. OK, so it's not a road car...

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Almost. SPI is from 1992 to 1996, and MPI is from 1996 to 2000

For the MPI's manifold look here:
http://www.ausmini.com/forums/viewtopic.php?t=42575

And here:
http://666kb.com/i/az5rxbg5odcl5bzam.jpg

The SPI's manifold is this one:

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No speakers, no bodykits, no six-inch spacers, no spak filler, no bullshit

This pic is the best from Ashpalt's links



My only comment is that 2 injectors is not enough for an engine that is going to rev.

Daniel

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Videos - Turbocharged A-Series on Dyno & at Wakefield
Mafs waz not my strong subgeckt at skkol

I'll let you know how I get on How often does GR read his e-mail

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'98 Mpi Sportspack + 7 port alloy head

What is the rpm limit of your engine?

Daniel

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Videos - Turbocharged A-Series on Dyno & at Wakefield
Mafs waz not my strong subgeckt at skkol

1430ccm and 110HP, with homemade inlet manifold, a road car

the biggest problem is injection timing. with the factory 63HP engine you have 5 miliseconds at 6000 RPM to inject all the fuel the engine needs per cycle. thats why the MPi injectors are very big, very fast and difficult to controll.
the Rover engineers were aware of the problems with higher revs, so they made it more torquey

4 inlet ports would help a lot

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Rover 214 atm ....

How about a seven port with Omex

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'98 Mpi Sportspack + 7 port alloy head

We are doing a Rover EFI computer with piggyback computer this week.
putting it on a warm 1.3 with a big ported head
it will be at minishow 2008 if anyone is interested.

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Miniworx Centre 0883741299
Sooperdooperminicooperexpertengineering
Online BMW Mini Shop

Just put a BMW twin cam motorbike cyl head on it & then all the injection stuff is easy-peasy

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

4 in 4 out makes it easy

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Miniworx Centre 0883741299
Sooperdooperminicooperexpertengineering
Online BMW Mini Shop

cool thanks guys for the reply with the information, i would like to know how hard it is to get one of the mpi manifolds cause i have so many ideas floating around in my head about wat i would like to do to my mini, like a efi system with a turbo setup

thanks anyway
Jacob

Bad idea - will cost you lots of money and pain - take my advice and buy a house.

If you must turbo it then keep the engine carby'd so it's easy to find people who can tune it for you.

If you want to go port EFI on an naturally aspirated engine then invest in Motec/Autronic or similar (so when you give up you can sell it for not much loss) and use 4 injectors. The twin point set-up only works well at low rpm and low load (relatively speaking) and is not for high rpm/power.

Have a look at Mokesta's manifold if you want a good starting point.

Daniel

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Videos - Turbocharged A-Series on Dyno & at Wakefield
Mafs waz not my strong subgeckt at skkol

I know in the UK some people have supercharged an MPI mini engine, but at the end of the day, if big power is what you want, factory parts won't cut it.