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Old 17th June 2015, 08:32
Mike Mike is offline
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The M50 Marlin Cabrio/Sporster solution is marginally more involved than your stright forward 180 degree rotation, but offers two significant benefits:
Significantly reduced effective elbow width, which will help with your rocker cover location on the opposite side, and
The ICV pipework remains at the bottom of the elbow, not rotated to the top as your photo shows.

I do not know that this will work with the M52, but the solution on an M50 is to cut off the concertina section of the elbow, which currently attaches to the MAF, and then use the new end to attach to the throttle body. This then positions the ICV port facing down.

I cut an old elbow up to test fit and prove it worked, and then bought a new elbow and made the change before for the final fit.

My elbow is rotated further round than you may need to, due to the position of my steel water tanks and my decision to take the air inlet pipe back to the bonnet.

[IMG]Complete M50B25 Inlet Manifold Fits - Just! by Mike Garner, on Flickr[/IMG]

Originally Posted by peterux View Post
At the moment I'm kind of doing space planning to work out where everything will fit.

I've had a look at the air intake elbow and MAF sensor. It clearly doesn't fit in its original position pointing towards the front of the car.

Air Inlet by marlinpeter, on Flickr

But borrowing the standard Marlin solution, reversing the elbow seems to work.....

Possible Air Inlet solution by marlinpeter, on Flickr

It's a bit tight so I've got to be carefull how much I move the engine across to clear the rocker cover on the other side.

Just got to figure out where to put the air filter and 'cold air' input. I've also got to re-route the ICV pipe.


Last edited by Mike; 17th June 2015 at 08:38.. Reason: Improved explanation
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