Phenolic Spacer for N5x/S55

EOSpeed

Corporal
Nov 7, 2016
109
158
0
Chicago, IL
phenolic.jpg
So after doing some testing we have developed a Phenolic spacer to isolate our intake manifold from the heat of the cylinder head. The spacer is custom machined to fit all three platforms N54, N55 and S55 and will be included with all of our newer manifolds going forward. For those of you who have other intake manifolds, you may also want to consider this spacer for heat management. You can even install it with a stock manifold if you so wish. We will be selling it in three different ways:

1) 8mm thick Phenolic spacer with OE gaskets and custom studs for stock style manifold flange thickness. $129.99ea
2) 8mm thick Phenolic spacer with OE gaskets only $97.99ea
3) 8mm thick Phenolic spacer no gaskets or studs $79.99ea


There will be a link on our website to order in the coming days.

We will be releasing some data over the next few weeks. We will also be doing some testing with the stock intake manifold just for comparison.

Also for those interested the new manifold that fits all three platforms will be releasing over the next few weeks also. We will start another post on that when it is all ready to go!

Please use link below to order:

https://www.eospeed.com/collections...pacer-for-n54-n55-and-s55?variant=40327211465
 
Last edited:

JBarros

Specialist
Jun 26, 2017
98
22
0
Ride
335i
View attachment 4315 So after doing some testing we have developed a Phenolic spacer to isolate our intake manifold from the heat of the cylinder head. The spacer is custom machined to fit all three platforms N54, N55 and S55 and will be included with all of our newer manifolds going forward. For those of you who have other intake manifolds, you may also want to consider this spacer for heat management. You can even install it with a stock manifold if you so wish. We will be selling it in three different ways:

1) 8mm thick Phenolic spacer with OE gaskets and custom studs for stock style manifold flange thickness. $129.99ea
2) 8mm thick Phenolic spacer with OE gaskets only $97.99ea
3) 8mm thick Phenolic spacer no gaskets or studs $79.99ea


There will be a link on our website to order in the coming days.

We will be releasing some data over the next few weeks. We will also be doing some testing with the stock intake manifold just for comparison.

Also for those interested the new manifold that fits all three platforms will be releasing over the next few weeks also. We will start another post on that when it is all ready to go!

Please use link below to order:

https://www.eospeed.com/collections...pacer-for-n54-n55-and-s55?variant=40327211465
So where's the data I like to see some results?
 

Bmwfixerguy1

Lieutenant
Jun 5, 2017
873
288
0
Ride
07 335i MT
I second that big timeeee!

You can't post up a product like that with out logs lol!
 

R.G.

Lieutenant
Nov 17, 2016
669
325
0
Henderson, NV
Ride
E92 335, F10 M5
These work. Should be a must for aluminum intakes. Wish they were integrated into the actual mani.
 

AndersS

Lurker
Dec 10, 2016
12
2
0
I am struggling with heat soak in my setup with EOS manifold.

Nice that it will be included for future buyers but will there be any discount for us who already have bought your manifold.?
 

Twisted Tuning

Lieutenant
Platinum Vendor
Oct 25, 2016
962
879
0
New York
www.twistedtuning.com
Ride
N54 and N55 Cars
These are for people switching to ALUMINUM manifolds. If you have a plastic manifold they will do nothing, as for the people asking for logs. Jesus, it stops heat soak to a metal manifold end of story. If you need to google what they do, go for it. They work, and have done so for years across all platforms.

THISSSS
 

lil_bro

Lurker
Nov 7, 2016
19
4
0
houston
Been plagued with manifold gasket issues for the longest time and always wonder if someone would make a phenolic spacer and what you know I came upon this. The groves on this spacer is precise and it fit perfectly with the oem gaskets snugly. I also bought some viton gaskets for my sharp manifold and so far I have no more leaking issues. My trims are so close to each bank where as before they are about over 15% apart. If you have an aftermarket intake manifold, getthing this is a no brainer to save you the headaches later down the road.
 
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R.G.

Lieutenant
Nov 17, 2016
669
325
0
Henderson, NV
Ride
E92 335, F10 M5
IMG_6210.JPG Linen/resin to be as general as possible. It does resemble wood. Here's some I had laying around.
 
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Twisted Tuning

Lieutenant
Platinum Vendor
Oct 25, 2016
962
879
0
New York
www.twistedtuning.com
Ride
N54 and N55 Cars
Thanx for the clarification. The pic sort of looked like a wood mock up.

I'm not sure what that one is. but generally all Phenolic is the same material unless "Phenolic" is used as simply an indicator of what the part should be used for. There are many materials that can be used for a "Phenolic" spacer outside actual "Phenolic" material. One of which is Teflon. Which I'm testing also. EOS, would need to say themselves what they are using. But my spacers are Phenolic at the current version.
 

EOSpeed

Corporal
Nov 7, 2016
109
158
0
Chicago, IL
We are using Phenolic LE material. We chose this material due to it thermal insulating properties. There are many variations of phenolic material which can be used. In general Phenolic LE material has been used for a very long time in the automotive industry.
 
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Jeffman

Captain
Jan 7, 2017
1,494
545
0
I'm not sure what that one is. but generally all Phenolic is the same material unless "Phenolic" is used as simply an indicator of what the part should be used for. There are many materials that can be used for a "Phenolic" spacer outside actual "Phenolic" material. One of which is Teflon. Which I'm testing also. EOS, would need to say themselves what they are using. But my spacers are Phenolic at the current version.
Ahem...I think a little clarification on these plastic-type of materials is warranted.
I think you're confusing the term "phenolic" with the term "polymer" or "polymeric resin" (I spent 10 years in polymer R&D). Teflon is actually the tradename for a class of polymers based on polymerized tetrafluoroethylene, a.k.a., PTFE. The term "phenolic" is usually not used alone, but together with "resin", as in "Phenolic resin". Phenolic resins were the first synthetic polymers which were commercialized in the early 20th century and are based on phenol formaldehyde (Wikipedia). So while both Teflon and Phenolic resins are both polymeric materials, Teflon is not a Phenolic resin.
 

Twisted Tuning

Lieutenant
Platinum Vendor
Oct 25, 2016
962
879
0
New York
www.twistedtuning.com
Ride
N54 and N55 Cars
Ahem...I think a little clarification on these plastic-type of materials is warranted.
I think you're confusing the term "phenolic" with the term "polymer" or "polymeric resin" (I spent 10 years in polymer R&D). Teflon is actually the tradename for a class of polymers based on polymerized tetrafluoroethylene, a.k.a., PTFE. The term "phenolic" is usually not used alone, but together with "resin", as in "Phenolic resin". Phenolic resins were the first synthetic polymers which were commercialized in the early 20th century and are based on phenol formaldehyde (Wikipedia). So while both Teflon and Phenolic resins are both polymeric materials, Teflon is not a Phenolic resin.


I actually did not say that Teflon was a phenolic resin. I said it can be used as a substitute for phenolic resin.

And when I said "Im Not sure what type of phenolic that EOS used"..... I was stating less specifically that was unsure which of the two classes he used and which base material was used because there are a few common ones. So I'm honestly not confusing anything.

But as to not cloud up EOS's thread. Feel free to PM me to discuss.

Edit: as I look back. My post wasnt typed the best. Lol. Multitasking at the time
 

Aaron

Lieutenant
Nov 3, 2016
544
200
0
Colorado
Ride
Silver 2013 335is 6MT
I don't want to see logs, I want to see specific data points, and quite frankly none of these companies will put these through that testing, because retards like Tony will buy these on the ignorant belief that they work as advertised, and actually make a notable difference.

Tony is right, to a point, that this helps with heating of the intake manifold. However, I'd ask how much of that heat does the air moving through it actually pick up? Because a hot intake manifold doesn't hurt anything, unless it's heating the air moving through it. And I doubt it has any discernable difference on the intake air.

Remember at high throttle levels, a lot of air is moving through the manifold very quickly. And the interior of the manifold is going to be smooth of course, so surface area is minimized.

Saying these work because they've been around forever is complete bullshit. The little fin that goes into your intake piping to spin the air has been around forever too, and those don't do shit.

I want to see actual testing. Temperatures for a realistic volume of air moved through the plenum when the plenum is at temp with and without the spacer.