MPi intake manifold, again
Turbo Mini Forums

Hi,

I'm sorry to ask another time this question. Despite numerous posts I did not find precise answers in the archive.

I need an intake manifold for A-series MPi. I don't like the Rover one, it's a poor design and it's too expensive for what it is.
I'd like to have staged 2+1 or 2+2 (1 or 2 common) injectors.
And it would be great to have room to install a small T2-like turbo later below the manifold.

What does exist and where ?
Could we do a list here as I think some of us have the same question.

Did someone try to modify the stage 1 torquemaster manifold ?

Thanks

Edited by alpa on 20th Nov, 2007.

std 998 A+, g295, MD266, RHF4, 109hp @0.8bar/5400rpm

I've had to make my own:

http://www.turbominis.co.uk/forums/index.p...id=154962&fr=50

And:

http://www.turbominis.co.uk/forums/index.p...id=129557&fr=25

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."

Nice job !
However I'd like to find a stock-looking setup because in France any engine mod are forbidden. I saw this "Brede Alnes of TS Racing" in the same thread, but did not find it on the web.

std 998 A+, g295, MD266, RHF4, 109hp @0.8bar/5400rpm

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."

France is one of best countries for old cars. Look at the list of my cars. They cost nothing in taxes and insurance (Maserati costs me 100 euros per year). The MOT is ridiculous and there is no limitations for usage of old (well, after WWII) cars. But if one day cops see you going faster than a modern sport car they could ask you to open the hood. And then you are a dead man.

I'll see if I can weld alu.

Edited by alpa on 20th Nov, 2007.

std 998 A+, g295, MD266, RHF4, 109hp @0.8bar/5400rpm

How about inserting a 20mm alu piece between the intake manifold and the head. The piece would be the mount point for injectors.

std 998 A+, g295, MD266, RHF4, 109hp @0.8bar/5400rpm

sounds ok as long as you can get a decent angle on the injector.

It would be a bit tight. You would have to mount the injectors vertically. Ideally they should point into the port.

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."

I checked, it must be possible to have a proper angle.
So this sounds OK to you.

I'm trying to buy an original manifold, simply because it'd allow me to use a Polo GT dual core throttle (I like the dual-throttle feeling). Otherwise I'll try the plate solution with a torque master.

std 998 A+, g295, MD266, RHF4, 109hp @0.8bar/5400rpm

I still have to write the injection part firmware LOL. But it should not be so long.

std 998 A+, g295, MD266, RHF4, 109hp @0.8bar/5400rpm

Just make sure that you allow for individual timing of the injection firing.

If you have not done so already, study the siamesed port problem.

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."

Yes of course I'll do that. I'll have a very flexible injection timing.

std 998 A+, g295, MD266, RHF4, 109hp @0.8bar/5400rpm