JRW'S 91 318is turbo build

[jrw21]

Neat, where is your oil pickup going for turbo?

I am planning on using the port on the back of the head. If that doesn't work out so well I will pull off the oil filter housing.

That will vibrate a lot though with those mounts.

Yeah, I'm afraid of this too. I used the big green 5 series mounts before and loved them might be switching back to those if these don't work out. But,  this is just a "fun" car so it may be tolerable for what it is.

[Darky]

What about the oil port on the front of the filter? It's before the filter though.

[jrw21]

What about the oil port on the front of the filter? It's before the filter though.

Would there be a benefit to that port instead of the rear port?

[jrw21]

Intake manifold is done! Created it from two oem intake manifolds. Also you will see a throttle body from a land rover, its roughly 3" ID. Idle control valve has a bit of a tweak as well.

[Jaker]

Love the IM. That is awesome.

[jrw21]

Love the IM. That is awesome.

Thanks, my original plan was to build a complete custom manifold. I wanted to keep it true and create something out of the oem parts. Definitely spent a lot more time and effort creating this piece to give it that "oem" look. It won't flow like my original custom mani design... but, 25 psi down its throat It will be fine!

[jrw21]

Intercooler and throttle body side charge piping:

[jrw21]

Well, a lot has happened since my last post.. Just getting bad on updating this thread.

However, this is what I beat my head against today:

[Darky]

Love the intercooler and oil cooler, massive good!

[jrw21]

Love the intercooler and oil cooler, massive good!

Thanks

Here are a few things i have completed in the past few weeks:

[Darky]

Hi

Why did you go electric water pump? What's the advantage?

The oil filter cap how does the oil lines work? Very difficult to get something like that, typically adaptor plate, external oil filter and thermostat and bypass or cooler.

Cheers Rohan

[Tgoode318]

I have heard that going to the electric water pump is similar in principle to the Fan delete in that its one less reciprocating mass unit being driven by the engine. (even though technically the load is just transferred to the charging system which is still driven by the engine). I have heard that this can give you 1-3* hp? although i don't have any conclusive data on that. Could also be that its just a better unit. Jrw enlighten us! btw great build so far i love all the custom touches you are putting into this.

[jrw21]

The electric water pump has several advantages but, most importantly it will allow me to accurately control water temp and flow via customized ecu parameters. The stock system only flows at its full potential as RPM increases to the top end of the rpm band.  As Tg mentioned the side benefit is less parasitic drag which equates to a marginally peppier feeling and a small hp gain. It is true however, that you will be putting an additional small load on the alternator. However, the pump draws ~6amps which is roughly comparable to an aftermarket stereo system.

The filter cap is made by UUC I bought it years ago for my s52 m3. It fits the m42 perfectly with no mods. These used to be widely popular about 10 years ago in the e36 market. I don't see too much info about this particular unit on google right now though.

[varg]

Interesting intake manifold. I have been searching out design options for an upgraded intake manifold for my Turbo M42, since I've heard from multiple people that it becomes a weak link in the flow path around 300bhp, I can't weld aluminum though, which is a problem.

[MoMansi]

MAN! i love the intake manifold / throttle setup..... super car type!