View Poll Results: Which evo air filter?
Buschur
46
51.69%
RMR
43
48.31%
Voters: 89. You may not vote on this poll
evo air intake poll
I have Buschur's intake kit.. The man is super-respectful and honest. He states that it gives the EVO 4whp, and I believe it.. Definitely a little more throttle response, and slightly more peppy.. I can't honestly comment on any other though.. But, since the man dyno'ed his car and got 4whp, out of his fwd conversion, you're not gonna "feel" it all that much anyways.. But it definately sounds great!! My .02
Last edited by Jonasan50; Jun 22, 2003 at 04:33 PM.
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The intakes are all the same exept for filtration in which a test has been done in another thread. Almost all tuners agree that the intake on the EVO is similar to that of a BOV. There for audible pleasure only. Go with the better looking one!
Originally posted by mrdecibel
The intakes are all the same exept for filtration in which a test has been done in another thread. Almost all tuners agree that the intake on the EVO is similar to that of a BOV. There for audible pleasure only. Go with the better looking one!
The intakes are all the same exept for filtration in which a test has been done in another thread. Almost all tuners agree that the intake on the EVO is similar to that of a BOV. There for audible pleasure only. Go with the better looking one!
Originally posted by N10S
I think you are right about them being fairly similar, but it seems like I do remember the RMR having some kind of fixing bracket to secure the air filter, where the Buschur unit just sets in the engine compartment kind of loose. Anyone can feel free to confirm or deny this as I could be wrong?
I think you are right about them being fairly similar, but it seems like I do remember the RMR having some kind of fixing bracket to secure the air filter, where the Buschur unit just sets in the engine compartment kind of loose. Anyone can feel free to confirm or deny this as I could be wrong?
I have the Buschur and don't like the looseness of the air intake pipe, so I ordered an RMR to swap it out. It is not good for the MAF to bounce around too much. Like stock, I think it is better on rubber mounts to give it some vibration dampning so I will probably insulate the RMR bracket some with rubber mounts but at least I will have a bracket to work with.
I just picked up a great book today called "Forced Induction Performance Tuning..a Practical guide to tuning". It has some excellent info in it, and does have a lot of very technical oriented data in it.
Regarding the replacement cone/pod type filter set-ups they discuss the affects of the changes referenced to dyno info regarding stock, stock with drop ins, and several different pod/cone style filters. The car tested indicated an increase in hp at the high end, but no gains down low.
One of the other chapters covers air density and provides reference charts for the affect of heat and altitude on pressure and hp.More heat and/or altitude= less density in oxygen molecules. They focus a lot on the fact that the amount of air in the piston chamber will be constant but the amount of air molecules will not be and therefore the combustion event will be compromised. The author is definitely against the in-engine bay cone without any kind of cold air ducting to it. Again I know that this is a touchy subject so no flames guys.
The author does have an example of where the cone actually works well and that is on a Skyline with a 4" exhaust, and a cone filter in more of a CAI configuration. The car was so restricted from the factory that it really responded to the cone filter alone making 15whp, once the exhaust was added they retested with the stock, and then the cone filter again. This time the CAI cone was suddenly making close to double the hp when added on with the 4" exhaust. The EVO is the kind of animal that can potentially use this kind of flow if modified accordingly..no doubt.
Its really a question of adding the right parts at the right time....and for me also waiting for a true CAI.
My .10 ..again
Regarding the replacement cone/pod type filter set-ups they discuss the affects of the changes referenced to dyno info regarding stock, stock with drop ins, and several different pod/cone style filters. The car tested indicated an increase in hp at the high end, but no gains down low.
One of the other chapters covers air density and provides reference charts for the affect of heat and altitude on pressure and hp.More heat and/or altitude= less density in oxygen molecules. They focus a lot on the fact that the amount of air in the piston chamber will be constant but the amount of air molecules will not be and therefore the combustion event will be compromised. The author is definitely against the in-engine bay cone without any kind of cold air ducting to it. Again I know that this is a touchy subject so no flames guys.
The author does have an example of where the cone actually works well and that is on a Skyline with a 4" exhaust, and a cone filter in more of a CAI configuration. The car was so restricted from the factory that it really responded to the cone filter alone making 15whp, once the exhaust was added they retested with the stock, and then the cone filter again. This time the CAI cone was suddenly making close to double the hp when added on with the 4" exhaust. The EVO is the kind of animal that can potentially use this kind of flow if modified accordingly..no doubt.
Its really a question of adding the right parts at the right time....and for me also waiting for a true CAI.
My .10 ..again