M42 / M44 Phenolic Spacer Kit - Reduce Intake Temps!

[JiXer]

*EDIT: I had to raise the cost on these a few bucks to cover increased material costs.
New price is: $150 for the complete kit with the gaskets plus shipping.

I have put together some phenolic spacer kits for M42's and M44's which isolate the intake manifold from the cylinder head. I developed and installed this product on my Supercharged M44 as the intake manifold and blower were getting really heat soaked from all of the extra compression and power and thus heat coming off the motor. It reduced my intake air temps almost 20 degrees F and the actual manifold surface temp over 40 degrees!

This is perfect for boosted applications and I have not tested it on an NA set up yet, but should also help keep NA intake manifold temps down a few degrees as well. We all know that the NA 4 bangers need all the help they can get.

The Spacer is Water Jet cut out of high grade phenolic fiber board which is rated at nearly 600 degrees! It is 10mm thick and for $150 the kit comes with extended studs, 2 additional locator dowels, phenolic washers, and for and 2 new manifold gaskets (one for each side of the spacer).

Let me know if you have any questions.

[Dj Buttchug]

very interesting. i may pick this up

[ZM Blue Devil]

shoot me your paypal, Ill install on Roxy our 318 project...

[RainierHooker]

This is a great idea. Maybe something like this could be the solution to all those cracked S14 intake blocks too...

[JiXer]

shoot me your paypal, Ill install on Roxy our 318 project...

j@bigfishmotorsports.com

[JiXer]

This is a great idea. Maybe something like this could be the solution to all those cracked S14 intake blocks too...

I don't much about S14's.
What cracks?
Any links to clue me in?

[JiXer]

bump

[noneone2]

pics installed?

[RainierHooker]

I don't much about S14's.
What cracks?
Any links to clue me in?

S14's use rubber isolator blocks between the head and the throttle bodies. They often crack and the 46mm ones used on stock US-spec cars are no longer offered by BMW's parts department. I'll try to come up with more info and pics. Being in aviation we use a lot of phenolic day to day, one of these days I might try to fab some up from scraps...

Edit: here's a recent thread on here about the problem: http://www.r3vlimited.com/board/showthread.php?t=187777

[JiXer]

Yeah, phenolic would be a great solution for that.
It would take a good order of 10 to make it worth it though.

[Adrian_Visser]

A word of warning to anyone who uses this stuff: if you have to grind or drill this shit do not breath the dust! Very poisonous shit. Or so I am told.

[samurai7]

A word of warning to anyone who uses this stuff: if you have to grind or drill this shit do not breath the dust! Very poisonous shit. Or so I am told.

JiXer,

How easy and/or messy would it be to drill through this for custom setups?

[JiXer]

JiXer,

How easy and/or messy would it be to drill through this for custom setups?

Will drill just fine. Slow speed drilling as not to melt the resin would be the key, but this stuff is rated over 500 degrees so it would be hard to f it up.
What exactly do you have to drill?

[samurai7]

Will drill just fine. Slow speed drilling as not to melt the resin would be the key, but this stuff is rated over 500 degrees so it would be hard to f it up.
What exactly do you have to drill?

I *may* have to drill/bore through to adapt an itb setup. The itbs will have an adapter that will be on top of this spacer.

In theory, I won't have to drill as the adapter should take care of "adapting" the mismatched stud locations etc.

Great info though. I will hit you up when I need them or when I have the cash (whichever comes first :)).

Say you run out of spacers, will you be making more soon? What quantity will you be making?

[JiXer]

Now that I have the template made and everything, I could cut as few as 3-5 again pretty cost effectively. Which ITB set up are you using?
You may not need the insulator. I mean, it will work to some degree no matter what, but its the heat soaking aluminum manifold that creates the higher intake temps.