I've never owned a turbo, I know how turbos work, but I don't have an experience with how they physically operate or the set up of them.
So anyway, I spotted this on eBay the other day, and was thinking about whether this would work with mine.eBay Link
Brand new, one off custom turbo manifold to fit BMW E36
318i. The flange's are designed to take any of the garrett GT
series turbo's. The heat wrap is in place to protect the spark
plug wires, coming out from the power pack. The rest of the
manifold has been heat wrapped to ensure, minimal heat soak into
other engine components, and also to ensure maximum gas flow
velocity. This manifold replaces the existing one, and the
Y-Pipe. You will need to take your car to an exhaust centre so
they can cut your exhaust just before the lambada sensor (on the
engine side), and then flare the pipe so the downpipe slides in
and clamps down. As shown in the picture. It is a very easy job
and should cost no more than £30. Or if you are fairly apt at
such things, you can do it yourself. The entire manifold and
downpipe is made of stainless steel, it is tubular for better
flow, it has also been heat treated against cracking. I have also
wrapped it in heat insulating tape. There is also a lambada
sensor bung in place.
The manifold is designed to be a top mount the turbo. This makes
its far more easy to get a good oil drain and positioning of
compressor outlet piping. It also makes a straighter and far more
efficiant flow of gas for the downpipe. Plus it looks great to
open the bonnet and see a turbo!!! The only two things that have
to be moved in the engine bay in order to fit this and a turbo
* The windscreen washer fluid bottle. It has to be moved to
make room for the turbo. A very easy thing to do, can be replaced
by a sports edition bag, or any plastic bottle.
* The top radiator hose. It has to be moved in order for the
compressor outlet (boost) pipe to go down into the intercooler,
or straight to the inlet manifold (whatever you decide.) Samco
sell a replacement radiator hose that can be manipulated to get
The manifold works with the M43 type engine. However it may work,
with the M42 and M44 type engines. I'm not entirely sure.
The testing alone cost many hundreds of pounds to make sure it
works, let alone the actual build. It is designed to be for the
serious tuner/customiser. This is not a "turbo manifold" that you
buy on E-Bay and have to hack your engine bay to get it to fit.
IT WILL FIT STRAIGHT ON, NO FURTHER MODIFICATIONS ARE NEEDED FOR
THE E36 M43 engine.. To whoever purchases the manifold, i will be
more than happy to answer any questions you may have to help
build your turbo BMW.
I probably won't buy it, but I'm just after technical information and advice.
It has been designed for use on an M43 engine, the sucessor to the engine in mine, the M40.
AFAIK, the only major difference between the two is the inlet manifold design the rest is just improvements.
Mine is a 316i and the manifold is designed for a 318i. Apart from the obvious differences (port sizes e.t.c) and assuming it fitted, would this work on my engine?
I'm assuming I would have to uprate the bottom end of the engine (rods? pistons? e.t.c)
How much would the right turbo cost?
How would I provide an oil feed? Direct to the turbo?
Adding an intercooler means I can have more boost?