phenolic spacers for the rs4?

[dummi]

ZKNY, are you an engineer?
I think you don't.

If you use phenolic spacers, you will block heat dissipation from the HEAD to the intake manifold. And this thing is really dangerous. Cosworth engineers, in their project didn't include modifications like this one. I was suggested to buy a GOOD fmic instead of the phenolic spacers
Moreover, if you decide to buy the phenolic spacers..bring yourself a 5mm type. The 10mm ones are TOO thick.

Bye

what the hell are you talking about, LOL!!!

there is no dissipation from the head to the manifold. its the other way around, and that is what PHENOLICS do.. they help cool the air from the intake manifold to the head (i am repeating myself, read my thread -its all there).

the phenolics are a safe bet and add a lil HP. not too many mods that are this simple and add HP/TQ. every little bit helps. if anyone is looking for more air, i have lines to CUSTOM INTAKE MANIFOLDS, you cant find them anywhere in the world.

sorry i have to add you are wrong the manifold is used for heat dissipation the phenolics bypass it. the actual design in the 2.7 channels heat from the combustion chamber on exhaust up the heads it radiates heat from the cylinder head and manifold making use of much surface area as possible. it does mean there will be a focus of heat in the valve train

however evidence says you are also right about the colder intake does have the desired intake cooling effect. its just a choice if you want to make the compromise. most people who are looking into this have already made the compromise of higher performance with over sae recommended combustion pressure and temperature, so i do not see the problem with it in the line of modifying with the knowledge you are shortening the life of the engine anyway, maybe while your doing it add an oil cooler or another fan to the coolant radiator. though radiator wont remove the heat focus from the valve train it will reduce it. however there has been no-one saying they have had problems with their valve train after this mod, whether that is a matter of time or blamed on the oem design i don't know.

[ZKNY]

ZKNY, are you an engineer?
I think you don't.

If you use phenolic spacers, you will block heat dissipation from the HEAD to the intake manifold. And this thing is really dangerous. Cosworth engineers, in their project didn't include modifications like this one. I was suggested to buy a GOOD fmic instead of the phenolic spacers
Moreover, if you decide to buy the phenolic spacers..bring yourself a 5mm type. The 10mm ones are TOO thick.

Bye

what the hell are you talking about, LOL!!!

there is no dissipation from the head to the manifold. its the other way around, and that is what PHENOLICS do.. they help cool the air from the intake manifold to the head (i am repeating myself, read my thread -its all there).

the phenolics are a safe bet and add a lil HP. not too many mods that are this simple and add HP/TQ. every little bit helps. if anyone is looking for more air, i have lines to CUSTOM INTAKE MANIFOLDS, you cant find them anywhere in the world.

sorry i have to add you are wrong the manifold is used for heat dissipation the phenolics bypass it. the actual design in the 2.7 channels heat from the combustion chamber on exhaust up the heads it radiates heat from the cylinder head and manifold making use of much surface area as possible. it does mean there will be a focus of heat in the valve train

however evidence says you are also right about the colder intake does have the desired intake cooling effect. its just a choice if you want to make the compromise. most people who are looking into this have already made the compromise of higher performance with over sae recommended combustion pressure and temperature, so i do not see the problem with it in the line of modifying with the knowledge you are shortening the life of the engine anyway, maybe while your doing it add an oil cooler or another fan to the coolant radiator. though radiator wont remove the heat focus from the valve train it will reduce it. however there has been no-one saying they have had problems with their valve train after this mod, whether that is a matter of time or blamed on the oem design i don't know.

the heat dissipation is a none-issue. the blocks can handle plenty of heat.
valve trains are made to handle heat, and there is no/minimal additional heat.

as for shortening the life of the motor, if you do it right, you are not shortening anything. iv seen stock rods on stock cars fail on low mileage cars, ie 19-30k miles.

the spacer simply lengthens the runners, which provide a cooler charge and more air. this several mm piece will not destroy or shorten anything.

[S4TAN]

pls re-read my post. not only do i know from experience, but others have logged, as well as EPL w the dyno tests. that is all.

OK OK New Yorker, chill! - I'm sure others have logged, and you have experience etc etc... but empirical evidence equates to more than just one BRASH* guys experience! ... Whatever, I'm probably gonna go with the phenolics anyway (when I get my aux water pump changed) - so no further convincing is needed for me.

* You say HARSH - I say BRASH!

[Andiroo]

You say HARSH - I say BRASH!

ZKNY I say you come across as a bit of a dick TBH (that's like nob, cock, todger, womb broom, salami, sausage where you come from you yoyo ). Like S4TAN says, chill a bit my friend.

Substantiated and particularised evidence is what we're looking for, and you could be right about the phenolics - 'but' you haven't explained why you think extra heat that is now kept in the head/valvetrain is of benefit apart from cooling the intake whis is a good thing. So aside from reduced intake temps, does extra heat in the head equate to better combustion and therefore more power perhaps, as long as you can map it?

Cheers,

Andiroo

[Philws4]

You say HARSH - I say BRASH!

ZKNY I say you come across as a bit of a dick TBH (that's like nob, cock, todger, womb broom, salami, sausage where you come from you yoyo ). Like S4TAN says, chill a bit my friend.

Wise words Mate

[Nige_RS4]

small but valid difference, remember under compression there is a lot of heat, it all adds up in the course of the air going into the engine

Agreed - the air flowing through the IM will extract the heat from the manifold and that heat has to then go somewhere .... the cylinders! Surely better to have a nice cold IM for your air to flow through.

As you say, won't make a big difference, but every little helps ... and anything that lowers IATs is a GOOD thing.

Doug, are these a straightforward fit on an RS4, as I've read reports that the throttle body may not align properly and something about the after-run pump.

[Tomson]

You say HARSH - I say BRASH!

ZKNY I say you come across as a bit of a dick TBH (that's like nob, cock, todger, womb broom, salami, sausage where you come from you yoyo ). Like S4TAN says, chill a bit my friend.

Fair Play Andi, you have just made me piss in my pants with laughter

[tdiquattro]

Doug, are these a straightforward fit on an RS4, as I've read reports that the throttle body may not align properly and something about the after-run pump.

Nige, the thing is they raise the intake manifold by whatever thickness they are, so obviously the mani and everything above it is moved up and so is the TB entry hole. There is actually more room for the after run pump.

It may not cause trouble, but the y pipe will be even higher (mine already rubs on the soundproofing -it's an RS4 y-pipe) and the TB connection wont line up, so the pipework from the intercoolers has to be shifted up somehow.

Not a mod for me, like the earlier replies, I think the proof is a bit vague at best. There were other posts on this which talked about the ammount of time the incoming air actually spends in the intake mani, a fair point I think when you work out the volume of air moving through there when you are making progress.

Maybe on a drag strip it might help, but I'm not so sure there either.