Aftermarket air filter necessary?
10-19-2010, 03:50 PM
#51
Super Moderator
No correlation at all...
But, oil did make its way into intake bellows..Early models..
But, oil did make its way into intake bellows..Early models..
10-20-2010, 09:29 AM
#52
off topic : Im thinking I should get the Mazda's ventilation kit to get rid of the oil in take problem.
Im not afraid of milky oil, problem is that kit cost an arm and leg. (like 200 bux yo!)
argh ...
on topic : Im using stock filters, reason i use it because I can get it cheap. if not, I probably gonna go back to K&N.
Im not afraid of milky oil, problem is that kit cost an arm and leg. (like 200 bux yo!)
argh ...
on topic : Im using stock filters, reason i use it because I can get it cheap. if not, I probably gonna go back to K&N.
10-20-2010, 09:36 AM
#54
Extraordinary Engineering
Either the catch can is junk (it never catches anything) or the residue isn't liquid until it gets to the intake.... Or it's coming from somewhere else.
Does the new vent use the LIM vacuum nipples?
Oh yeah, the topic!... I use standard paper filters, stock air box, RB ram air.
10-20-2010, 10:01 AM
#55
Yeah, I did a catch can to try to keep liquid out of the intake but it still accumulates...
Either the catch can is junk (it never catches anything) or the residue isn't liquid until it gets to the intake.... Or it's coming from somewhere else.
Does the new vent use the LIM vacuum nipples?
Oh yeah, the topic!... I use standard paper filters, stock air box, RB ram air.
Either the catch can is junk (it never catches anything) or the residue isn't liquid until it gets to the intake.... Or it's coming from somewhere else.
Does the new vent use the LIM vacuum nipples?
Oh yeah, the topic!... I use standard paper filters, stock air box, RB ram air.
but 200 bux a pop ... argh ... not sure if I want it. it has all new hose/tubes/intake manifold gasket/etc. but still ... grrr ...
10-20-2010, 10:16 AM
#56
Extraordinary Engineering
Can't you just plug the intake accordion tube fitting and run some vacuum line through your catch can over to the LIM nipple? What did they change on the oil fill pipe?
10-20-2010, 10:44 AM
#57
then another tube will be added to the solenoid behind the intake manifold to the intake.
this is also why the vent kit has new manifold gaskets, you need to take a lot of **** out to do this (probably 2-3 hours of labor)
10-20-2010, 11:12 AM
#58
Extraordinary Engineering
the new tube will split the tube into 2, it goes into both nipples.
then another tube will be added to the solenoid behind the intake manifold to the intake.
this is also why the vent kit has new manifold gaskets, you need to take a lot of **** out to do this (probably 2-3 hours of labor)
then another tube will be added to the solenoid behind the intake manifold to the intake.
this is also why the vent kit has new manifold gaskets, you need to take a lot of **** out to do this (probably 2-3 hours of labor)
The solenoids under the UIM are for air pump, VDI and SSV
They change out the oil filler for some reason I don't understand, probably to keep oil techs from filling the vacuum tube with oil.
Then they add another hose extension to change the location of one hose on the accordion tube. For reference this is step 28 of the TSB It isn't clear to me what they do with the left over hole on the tube since they seem to be using 2 of the 3. One for OMP and one for intake port air jet, the oil tube vent was moved to LIM.
Other than the new oil filler I see no reason to remove all the other stuff.
Last edited by DarkBrew; 10-20-2010 at 11:33 AM.
09-26-2011, 10:26 PM
#61
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K& N versus paper
You guys talk about how which one flows better and which one traps more particles. The paper one is great for filtration and yes it is what auto designers build into the equation. But it does restrict airflow at a point. Some of you have said that put the k&n up to the light and see how big the pores are, but when properly oiled, which is just enough to get the fibers pink to slightly red, those pores seal right up. The oil collects the sand and smaller particles, and will do so until all the oil is soaked up. I have seen those filters caked with dirt, sand, and mud and the motor still breathes fire. Personally, the k &n is better for rotaries because any sand that gets in will do more damage than a normal piston engine.
09-26-2011, 11:06 PM
#62
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You guys talk about how which one flows better and which one traps more particles. The paper one is great for filtration and yes it is what auto designers build into the equation. But it does restrict airflow at a point. Some of you have said that put the k&n up to the light and see how big the pores are, but when properly oiled, which is just enough to get the fibers pink to slightly red, those pores seal right up. The oil collects the sand and smaller particles, and will do so until all the oil is soaked up. I have seen those filters caked with dirt, sand, and mud and the motor still breathes fire. Personally, the k &n is better for rotaries because any sand that gets in will do more damage than a normal piston engine.
You state a paper filter restricts flow yet the numerous dyno sheets prove otherwise. Look at Shadycrews last dyno results for instance.
09-26-2011, 11:07 PM
#63
Super Moderator
No and Wrong....
Not you 9K
What part of what is written don't you get....
Mazda Japan spent a lot of time and a small fortune getting the Intake and Air Box and Accordion Tube-MAF Sensor at it's optimum design, performance and efficiency.
Every US and Europe RX-8 racers say stay with the OEM Air Filter Element at the very least...
WHY, because as said before it flows the best, filters the best and lasts the longest and most importantly protects the Engine internals from ultra fine abrasive dirt/dust.
Not you 9K
What part of what is written don't you get....
Mazda Japan spent a lot of time and a small fortune getting the Intake and Air Box and Accordion Tube-MAF Sensor at it's optimum design, performance and efficiency.
Every US and Europe RX-8 racers say stay with the OEM Air Filter Element at the very least...
WHY, because as said before it flows the best, filters the best and lasts the longest and most importantly protects the Engine internals from ultra fine abrasive dirt/dust.
09-27-2011, 12:49 AM
#64
No and Wrong....
Not you 9K
What part of what is written don't you get....
Mazda Japan spent a lot of time and a small fortune getting the Intake and Air Box and Accordion Tube-MAF Sensor at it's optimum design, performance and efficiency.
Every US and Europe RX-8 racers say stay with the OEM Air Filter Element at the very least...
WHY, because as said before it flows the best, filters the best and lasts the longest and most importantly protects the Engine internals from ultra fine abrasive dirt/dust.
Not you 9K
What part of what is written don't you get....
Mazda Japan spent a lot of time and a small fortune getting the Intake and Air Box and Accordion Tube-MAF Sensor at it's optimum design, performance and efficiency.
Every US and Europe RX-8 racers say stay with the OEM Air Filter Element at the very least...
WHY, because as said before it flows the best, filters the best and lasts the longest and most importantly protects the Engine internals from ultra fine abrasive dirt/dust.
10-22-2011, 01:40 AM
#65
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No and Wrong....
Not you 9K
What part of what is written don't you get....
Mazda Japan spent a lot of time and a small fortune getting the Intake and Air Box and Accordion Tube-MAF Sensor at it's optimum design, performance and efficiency.
Every US and Europe RX-8 racers say stay with the OEM Air Filter Element at the very least...
WHY, because as said before it flows the best, filters the best and lasts the longest and most importantly protects the Engine internals from ultra fine abrasive dirt/dust.
Not you 9K
What part of what is written don't you get....
Mazda Japan spent a lot of time and a small fortune getting the Intake and Air Box and Accordion Tube-MAF Sensor at it's optimum design, performance and efficiency.
Every US and Europe RX-8 racers say stay with the OEM Air Filter Element at the very least...
WHY, because as said before it flows the best, filters the best and lasts the longest and most importantly protects the Engine internals from ultra fine abrasive dirt/dust.
10-22-2011, 03:29 AM
#66
Super Moderator
Eric Meyer for one...
From memory Speedsource Racing...
I don't need to do the re-search...you can do the Searching.
10-22-2011, 03:35 AM
#67
Super Moderator
BTW..I suggest YOU go back and RE-Read this thread.....
10-22-2011, 10:14 AM
#68
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Wow, so instead of basing your generalized statements on fact, you not only become insulting to someone who's actually done their research, you, once again, don't read the whole statement, and just highlight whatever you want.
Oh, and yes, it does make a difference what kind of motor you run, since we're talking about the oem filter versus aftermarket in the renesis motor. So make sure that you do your research on your dumb, generalized statements, so you don't sound like some know-it-all who actually doesn't know anything. And instead of being a stubborn, prideful person, who can't think outside the box, look at all the options before saying which one is the best. Because, let's be honest, I doubt you've actually used anything different in your vehicle.
Oh, and yes, it does make a difference what kind of motor you run, since we're talking about the oem filter versus aftermarket in the renesis motor. So make sure that you do your research on your dumb, generalized statements, so you don't sound like some know-it-all who actually doesn't know anything. And instead of being a stubborn, prideful person, who can't think outside the box, look at all the options before saying which one is the best. Because, let's be honest, I doubt you've actually used anything different in your vehicle.
10-22-2011, 11:45 AM
#69
Super Moderator
YOU have put up no facts or data to support your statement, just opinion.
Do some more reading if you like..
https://www.rx8club.com/showpost.php...7&postcount=24
https://www.rx8club.com/series-i-tech-garage-22/k-n-air-filter-177971/#post3849277
Last edited by ASH8; 10-22-2011 at 11:50 AM.
10-22-2011, 03:59 PM
#70
SARX Legend
Thread Starter
iTrader: (46)
Wow, so instead of basing your generalized statements on fact, you not only become insulting to someone who's actually done their research, you, once again, don't read the whole statement, and just highlight whatever you want.
Oh, and yes, it does make a difference what kind of motor you run, since we're talking about the oem filter versus aftermarket in the renesis motor. So make sure that you do your research on your dumb, generalized statements, so you don't sound like some know-it-all who actually doesn't know anything. And instead of being a stubborn, prideful person, who can't think outside the box, look at all the options before saying which one is the best. Because, let's be honest, I doubt you've actually used anything different in your vehicle.
Oh, and yes, it does make a difference what kind of motor you run, since we're talking about the oem filter versus aftermarket in the renesis motor. So make sure that you do your research on your dumb, generalized statements, so you don't sound like some know-it-all who actually doesn't know anything. And instead of being a stubborn, prideful person, who can't think outside the box, look at all the options before saying which one is the best. Because, let's be honest, I doubt you've actually used anything different in your vehicle.
Have you torn apart a Renesis? Have you seen how dirty the intake tract can get even when a top notch paper filter was used? I have, and I have run plenty of aftermarket filters as well. I am actually on the hunt right now for the best filter for my Turbo setup. There is no doubt that a K&N flows slightly better than most paper filters but it has also been proven that they do not really add any usable wheel horsepower either and a few dyno runs have actually shown the K&N intake to lose horsepower. The Renesis is firsa fickle beast and even race teams and race builders are not making huge amounts of horsepower naturally aspirated over highly modified naturally aspirated street RX-8's. So which filter they run likely plays little into their search for horsepower which is why running a filter that actually filters well is top priority.
A filter should filter well.
10-22-2011, 05:01 PM
#71
i hate to do it but the k&N has the potential of helping the engine make a little more power. Intake restriction is a real deal but, the airfiter is only a small part of it. K&N has a more open design--meaning it doesnt filter as well. Whether it filters good enough--well that has caused many of a discussion.
Paper is the best filter--AEM makes a good one. One of the most important factors is getting one that has enough flow capacity. You need over capacity so when the filter gets a little dirty it still has enough left to do the job.
When you add FI to this engine you need a bigger airfilter. i did the math one time, but its buried in the Pettit thread somewhere. The size of the filter gets complicated because of the pleatting and different shapes.
Some good reading about the benefits of a huge pre maf pipe and airfilter can be found on Kenne Bells site. Check it out.
Paper is the best filter--AEM makes a good one. One of the most important factors is getting one that has enough flow capacity. You need over capacity so when the filter gets a little dirty it still has enough left to do the job.
When you add FI to this engine you need a bigger airfilter. i did the math one time, but its buried in the Pettit thread somewhere. The size of the filter gets complicated because of the pleatting and different shapes.
Some good reading about the benefits of a huge pre maf pipe and airfilter can be found on Kenne Bells site. Check it out.
10-22-2011, 09:07 PM
#72
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Thread Starter
iTrader: (46)
Yeah for a forced induction setup a bigger free flowing filter is needed so a stock style filter will not work but I am playing with the idea of using a huge OEM paper filter designed for a 6.0 Liter turbo diesel. Now if i can just find a place to put it then I will be set.
10-23-2011, 04:47 AM
#73
Super Moderator
