Greddy Air Filter w/ 4" inlet for GT35/40....The mushroom one
10-18-04, 12:08 AM
#3
Doesn’t Jason carry them?
Personally I don’t think those are all that good. They are barely a prefilter, they have a very open cell construction. I would think a KandN would be a much better choice for filtration.
Which manifold do you have the old unequal length or the newer low manifold?
The older one doesn’t leave nearly as much room for a good sized filter, but if you can make something work I think it will be to your benefit to get something with much more surface area and better filter media if you can swing it.
Personally I don’t think those are all that good. They are barely a prefilter, they have a very open cell construction. I would think a KandN would be a much better choice for filtration.
Which manifold do you have the old unequal length or the newer low manifold?
The older one doesn’t leave nearly as much room for a good sized filter, but if you can make something work I think it will be to your benefit to get something with much more surface area and better filter media if you can swing it.
10-18-04, 07:36 AM
#4
Eats, Sleeps, Dreams Rotary
Thread Starter
I have the older manifold so there's not much room...I will give Jason a call...Der...Didn't even think to call him. I have been asking Gotham to get one and they have ordered them some 3 weeks ago and nothing yet.
Thanks,
David
Thanks,
David
Originally Posted by rotarypower101
Doesn’t Jason carry them?
Personally I don’t think those are all that good. They are barely a prefilter, they have a very open cell construction. I would think a KandN would be a much better choice for filtration.
Which manifold do you have the old unequal length or the newer low manifold?
The older one doesn’t leave nearly as much room for a good sized filter, but if you can make something work I think it will be to your benefit to get something with much more surface area and better filter media if you can swing it.
Personally I don’t think those are all that good. They are barely a prefilter, they have a very open cell construction. I would think a KandN would be a much better choice for filtration.
Which manifold do you have the old unequal length or the newer low manifold?
The older one doesn’t leave nearly as much room for a good sized filter, but if you can make something work I think it will be to your benefit to get something with much more surface area and better filter media if you can swing it.
10-18-04, 02:43 PM
#6
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I don't think K&N's are very highly rated either on filtration but I have used all sorts of different types of filters and never had an engine blow from sucking in miniscule particles etc.
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10-18-04, 06:33 PM
#9
Eats, Sleeps, Dreams Rotary
Thread Starter
Originally Posted by Zero R
I have a simple cone filter that would work.
10-18-04, 06:39 PM
#11
Eats, Sleeps, Dreams Rotary
Thread Starter
Originally Posted by Zero R
measure from the rim on the inlet where the filter would push up to, out to the radiator assembly.
Thanks
10-19-04, 12:26 AM
#14
Originally Posted by Icemastr
I don't think K&N's are very highly rated either on filtration but I have used all sorts of different types of filters and never had an engine blow from sucking in miniscule particles etc.
10-19-04, 08:05 AM
#15
Eats, Sleeps, Dreams Rotary
Thread Starter
Originally Posted by rotarypower101
Have you ever considered what those particles consist of? Rock dust, and dirt all very abrasive when inside an engine. Keeping them out should be a no brainer when dealing with parts that have thousands of an inch tolerances.
Thanks,
Me
10-19-04, 11:03 AM
#16
I have seen MANY turbo's that ran with no filter, or those foam cell types. And let me tell you, I can always tell what kind of filter or no filter at all was used on a turbo when i inspect it. Poor filters or no filter at all litterally sand blast the turbos impellers and the inside of the comp housing. Eventually the the blades wear very thin at the ends and can break!! Now imagine all this sand blasting inside your motor too.
~Mike..................
~Mike..................
10-19-04, 12:13 PM
#17
It will take you figuring out which size you can fit in there and choosing one that is most appropriate.
Here is the link to there size charts, you need to find on that has a 4” flange and that will fit in your space + the 1.25 - 1.5” roughly extra to remove it unless you are able to just angle it in with minimal clearance.
Personally I think you would be happier with a little wiggle room, as I didn’t take this wrought and my filter takes a little effort to get out, and I only gained a inch or so extra.
And I don’t know why anyone would say KandN filters are not good? They have been proven to actually increase flow over no filter in many applications. (counter intuitive I know but true none the less) I think they are very durable and you can get just about any size you need without compromise.
http://knfilters.com/universal/universal.htm
Here is the link to there size charts, you need to find on that has a 4” flange and that will fit in your space + the 1.25 - 1.5” roughly extra to remove it unless you are able to just angle it in with minimal clearance.
Personally I think you would be happier with a little wiggle room, as I didn’t take this wrought and my filter takes a little effort to get out, and I only gained a inch or so extra.
And I don’t know why anyone would say KandN filters are not good? They have been proven to actually increase flow over no filter in many applications. (counter intuitive I know but true none the less) I think they are very durable and you can get just about any size you need without compromise.
http://knfilters.com/universal/universal.htm
10-20-04, 05:46 PM
#18
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Forget the GReddy foam and K&N filters. Find yourself an HKS Metalflow filter. They're stubby, use a stainless mesh, and are resistant to heat and water, two things that do the GReddy and K&N in. If you do a search for Metalflow or HKS filter, I'm sure my posts will come up regarding this filter. I cannot remember the part number off hand but I know I put it in my inital post. It's probably in the single turbo section.
10-20-04, 11:31 PM
#20
Hear is the HKS unit, http://www.tdi-plc.com/Technical%20PowerFlow.html
I have a very similar stainless mesh unit in my seadoo (necessary there obviously), and I find cleaning it is a very high priority, and it takes a lot of effort as well because the layers of mesh.
But I wonder about its filtering ability with the small dust particles, generally you can see through the mesh?
Assuming you filter dosnt get completely saturated with water (I don’t know I have never had that problem at all) wouldnt a fabric based material be the best for filtration purposes? The best mechanical filters are made of similar materials and work well even for the smallest micron sized particles. Ie hepafilters and air filtration systems until you get into electrostatic precipitators. Not likely on a car and unreasonable for the quality a engine needs.
The heat could be an issue, though I have never had a problem with that either, wouldnt the air going through the filter cool it regaurdless?
I have a very similar stainless mesh unit in my seadoo (necessary there obviously), and I find cleaning it is a very high priority, and it takes a lot of effort as well because the layers of mesh.
But I wonder about its filtering ability with the small dust particles, generally you can see through the mesh?
Assuming you filter dosnt get completely saturated with water (I don’t know I have never had that problem at all) wouldnt a fabric based material be the best for filtration purposes? The best mechanical filters are made of similar materials and work well even for the smallest micron sized particles. Ie hepafilters and air filtration systems until you get into electrostatic precipitators. Not likely on a car and unreasonable for the quality a engine needs.
The heat could be an issue, though I have never had a problem with that either, wouldnt the air going through the filter cool it regaurdless?
10-21-04, 09:06 PM
#21
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If you look at the bottom left of the link above, that's the Metalflow.
Some of the issues I mentioned. With the foam-type filters, heat actually dries the foam out and eventually it'll crack, deteriorate and get sucked up into the turbo.
With water and K&N filters, water will wash away the oil on the filter which will then be worthless. On the K&N's, it's the oil that gives the filter the abilty to "filter". Water and foam-type can cause rot as well.
I do clean my filter on a regular basis. I don't find it that difficult. Certainly no worse than an K&N. I think the mesh in the Metalflow is good for 10 micron particles. The only downside is that yes, it does have to be cleaned frequently. But if you are as **** about your car as I am mine, it becomes a non issue
The air going through it at speed I'm sure does cool it but there's still radiated heat at shutoff and heat transmitted into the filter body itself. I've never felt a cool filter after running although admittedly, I don't check often! I have removed filters after shutting the car off and they're always hot. Some people have had issues with the K&N filter bases melting on the hot turbos. Not good.
Some of the issues I mentioned. With the foam-type filters, heat actually dries the foam out and eventually it'll crack, deteriorate and get sucked up into the turbo.
With water and K&N filters, water will wash away the oil on the filter which will then be worthless. On the K&N's, it's the oil that gives the filter the abilty to "filter". Water and foam-type can cause rot as well.
I do clean my filter on a regular basis. I don't find it that difficult. Certainly no worse than an K&N. I think the mesh in the Metalflow is good for 10 micron particles. The only downside is that yes, it does have to be cleaned frequently. But if you are as **** about your car as I am mine, it becomes a non issue
The air going through it at speed I'm sure does cool it but there's still radiated heat at shutoff and heat transmitted into the filter body itself. I've never felt a cool filter after running although admittedly, I don't check often! I have removed filters after shutting the car off and they're always hot. Some people have had issues with the K&N filter bases melting on the hot turbos. Not good.
10-21-04, 09:44 PM
#23
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Same for the Blitz (same construction). Honestly, I don't clean mine nearly that often. Maybe every 5K or so. It's not as if the car doesn't idle...you can't even tell the difference going from dirty to clean.
10-24-04, 08:49 AM
#24
Bridgeport Anyone??
Does anyone know where to get this MetalFlow filter for just the filter. So far I can only find kits for like 200 bucks. I either want the Blitz one or the HKS Metal, but can't find just the filter itself. If someone finds it, post it here. I'll keep looking.
Mike
Mike
10-24-04, 02:37 PM
#25
Originally Posted by BoostorLose
Does anyone know where to get this MetalFlow filter for just the filter. So far I can only find kits for like 200 bucks. I either want the Blitz one or the HKS Metal, but can't find just the filter itself. If someone finds it, post it here. I'll keep looking.
Mike
Mike