Part # for K&N 'Shorty' 4 inch air filter
#53
4th string e-armchair QB
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heh, got filter? 6" bellmouth for the filter inlet, 10" long.
http://www.knfilters.com/search/prod...x?Prod=RU-3280
http://www.knfilters.com/search/prod...x?Prod=RU-3280
#54
"Elusive, not deceptive!”
#56
"Elusive, not deceptive!”
If everything is perfect I can maintain only 3ºC above ambient till a heatsoak event.
There is no increase in temp when boosting because of 50/50 water/meth injection.
It will still take a few miles to cool down after a heat soaking shutdown, say from 60 ºC.
I have an extra spray switch that will drop the temps faster if needed.
Barry
#57
rotorhead
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my K&N 7" long filter split in the rubber part, behind the clamp. I don't think it could take the torquing of the engine. I didn't like the design of it anyway, it had a little lip inside that kept me from being able to slide the whole rubber part on to the turbo.
I've got the 4 inch chode filter back on. I may switch to a cheapie Spectre from Pep Boys.
http://www.spectreperformance.com/#CATALOG.8136
I've got the 4 inch chode filter back on. I may switch to a cheapie Spectre from Pep Boys.
http://www.spectreperformance.com/#CATALOG.8136
#58
Original Gangster/Rotary!
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My FD made almost 500 rwhp on the dyno, and removing the shorty filter didn't seem to make any difference. There was a huge fan (like 4 feet square) that pushed more air as the car spun the rollers faster.
#60
Fast + Reliable = $$$$$
iTrader: (18)
Whatcha guys think? Just swapped for a bigger filter today... Monster V-Mount has been pushed all the way over and it was still a tight turn around the end tank , luckily Rene over at RMS fabbed me a perfect "S" pipe. I think next I'll build a nice carbon fiber box around the filter...
7" filter
9" filter
7" filter
9" filter
#61
3.3 Litres of Win
Join Date: Jun 2010
Location: Cincinnati
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This is why I just replaced my intake with a screen. Since it never gets driven in the rain or off roading I am not really worried about it haha. I had over 15k on my old set up with just a screen.
However for you guys trying to figure out a fix for the rubber lip on the K&N melting. Do this.
Pick up some DEI Cool Tape, Wrap around turbo inlet inside out, trim to fit and put the filter on tight. We did this on a friends car that was having continuous issues with the rubber melting and he never has had the problem since.
Here is the DEI Cooltape: http://www.designengineering.com/cat...ials/cool-tape
However for you guys trying to figure out a fix for the rubber lip on the K&N melting. Do this.
Pick up some DEI Cool Tape, Wrap around turbo inlet inside out, trim to fit and put the filter on tight. We did this on a friends car that was having continuous issues with the rubber melting and he never has had the problem since.
Here is the DEI Cooltape: http://www.designengineering.com/cat...ials/cool-tape
#63
3.3 Litres of Win
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Location: Cincinnati
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Wire mesh screen from Home Depot (non-silicone coated)
4" Rubber coupler
T-bolt clamp or Hose Clamp
Cut a 6" circumference circle of screen and place over turbo to form it to shape.
Put over coupler and trim to fit over inlet lip so the screen is between the turbo inlet and coupler (this prevents screen from slipping out)
Tighten down clamp.
4" Rubber coupler
T-bolt clamp or Hose Clamp
Cut a 6" circumference circle of screen and place over turbo to form it to shape.
Put over coupler and trim to fit over inlet lip so the screen is between the turbo inlet and coupler (this prevents screen from slipping out)
Tighten down clamp.
#64
Original Gangster/Rotary!
Thread Starter
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For guys that really don't have room, this is a better alternative than a mesh screen or (ahem) panty hose
http://www.knfilters.com/search/prod...Prod=RX-4130-1
It will be a tight squeeze for a 4 inch inlet, but I'll bet it could be made to fit.
http://www.knfilters.com/search/prod...Prod=RX-4130-1
It will be a tight squeeze for a 4 inch inlet, but I'll bet it could be made to fit.
#66
http://www.knfilters.com/search/prod...x?Prod=RC-9470
http://www.knfilters.com/images/l/57-0167.jpg
there ya go, that fits a gt35r fc with the Re-Amemiya exhaust manifold. ohh and its with the stock fan/fan clutch
http://www.knfilters.com/images/l/57-0167.jpg
there ya go, that fits a gt35r fc with the Re-Amemiya exhaust manifold. ohh and its with the stock fan/fan clutch
#67
Original Gangster/Rotary!
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I just picked up the RC-3600 K&N filter to replace my old shorty. This one is 5 inches long, so 43% longer. I had made a few minor changes to the engine bay to free up incremental room, so it fit (barely) with no problems
Air Filter Bottom Measurement
5.375 in. diameter
Air Filter Style
Conical
Air Filter Top Measurement
4.500 in. diameter
Filter Color
Red
Filter Material
Cotton gauze
Inlet Flange Inside Diameter (in)
4.000 in.
Length (in)
5.000 in.
Notes
With chrome end cap.
Air Filter Bottom Measurement
5.375 in. diameter
Air Filter Style
Conical
Air Filter Top Measurement
4.500 in. diameter
Filter Color
Red
Filter Material
Cotton gauze
Inlet Flange Inside Diameter (in)
4.000 in.
Length (in)
5.000 in.
Notes
With chrome end cap.
Last edited by GoodfellaFD3S; 03-03-11 at 07:03 PM.
#69
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For guys that really don't have room, this is a better alternative than a mesh screen or (ahem) panty hose
http://www.knfilters.com/search/prod...Prod=RX-4130-1
It will be a tight squeeze for a 4 inch inlet, but I'll bet it could be made to fit.
http://www.knfilters.com/search/prod...Prod=RX-4130-1
It will be a tight squeeze for a 4 inch inlet, but I'll bet it could be made to fit.
Thanks much.
#71
Eats, Sleeps, Dreams Rotary
iTrader: (52)
I wanted to add a little more information. After calling K&N today, the filter I use and the x-stream top that Rich posted have the same flow rating. I will be turning up the boost soon so we shall see how the little guy does. Honestly, if I lose 15whp, I don't mind. It's the best filter I could find for my setup.
RX-4130-1
256cfm at 1.5" of H2O
RC-4480
255cfm at 1.5" of H2O
RX-4130-1
256cfm at 1.5" of H2O
RC-4480
255cfm at 1.5" of H2O
#73
Eats, Sleeps, Dreams Rotary
iTrader: (52)
After being completely unable to swallow using a screen on my newly built engine, I called K&N today and they are custom making me a filter.
I managed to pull a 375cfm x 1.5 H2O filter from the molds they currently have. As a comparison, GoodFella's filter from his original post flows 340cfm x 1.5 H20.
Quite a gain from my current configuration. Matt, the tech support guy was very "on point" with his flow ratings, sizes and their ability to accomodate my setup.
I urge others with a unique need to give them a call. I will take pics and report back when it arrives in a few weeks.
I managed to pull a 375cfm x 1.5 H2O filter from the molds they currently have. As a comparison, GoodFella's filter from his original post flows 340cfm x 1.5 H20.
Quite a gain from my current configuration. Matt, the tech support guy was very "on point" with his flow ratings, sizes and their ability to accomodate my setup.
I urge others with a unique need to give them a call. I will take pics and report back when it arrives in a few weeks.
#74
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After being completely unable to swallow using a screen on my newly built engine, I called K&N today and they are custom making me a filter.
I managed to pull a 375cfm x 1.5 H2O filter from the molds they currently have. As a comparison, GoodFella's filter from his original post flows 340cfm x 1.5 H20.
Quite a gain from my current configuration. Matt, the tech support guy was very "on point" with his flow ratings, sizes and their ability to accomodate my setup.
I urge others with a unique need to give them a call. I will take pics and report back when it arrives in a few weeks.
I managed to pull a 375cfm x 1.5 H2O filter from the molds they currently have. As a comparison, GoodFella's filter from his original post flows 340cfm x 1.5 H20.
Quite a gain from my current configuration. Matt, the tech support guy was very "on point" with his flow ratings, sizes and their ability to accomodate my setup.
I urge others with a unique need to give them a call. I will take pics and report back when it arrives in a few weeks.
#75
Eats, Sleeps, Dreams Rotary
iTrader: (52)
For flow calculation, K&N rep told me what each one was, but they were essentially using these formulas.
CFM Formulas for Filters
Round: Diameter x Height x 6 x 3.14
Flat Panel: Length x Width x 6
Universal Round Taper: (Base + Top) / 2 = A
Take A x Length x 6 x 3.14
Universal Round Straight: Diameter x Length x 6 x 3.14