Perhaps the cheapest performance ever

[tommyoneleg]

What part numbers were the filters?

Crank Case air filter 62-1250

Idle air hose filter 62-1160

For the air intake I used RU-2920 - This is the one I had to do a little extra since the Dual Flanges are 16mm apart and I needed them about 6mm apart so I put a little metal strips held on by metal straps around them and I got just enough of an angle so they all hooked up, if you can see it in the pictures. And it just fit with about 4mm or 1/8 inch to spare on the height. I also cut my air box apart to have something to hook the flanges to.

I should have ordered the RD-4600 and had K&N reduce the height of it from 6.5 inches to 3 inches but the cost was to much for me. That is the one reason I did not order a kit already made and I have been doing stuff since 1985 when I first started racing bike back then.

Also I have a 2009 RS, if you need more pictures I have some more.

 

[freebob]

intake tools

Sorry but the best I can tell this only applys to the GS/RS up thru 2012. In my quest for faster times this year at Spyderfest I had intentions of building a ram air airfilter for my Spyder during disassembly I noticed this part in the air box I had not noticed before. For the life of me I can't understand it's purpose other than a factory restrictor plate as in NASCAR. with this in place you only have two roughly 2 inch holes for the air to enter the air box, with it removed you get around a 3x5 hole for air flow. With the original air box still in place you still get the advantage of cool air flow into the intake unlike the after market air filter conversions that are pulling their air from around the engine (hot air). My 08 GS has been running an HMF muffler since the 1st year I owned it and has always had popping on decel, I considered 02 modifier, juice boxes, and other enrichment devices but never read good enough reviews to convince me. By removing this from the air box my butt dyno says it runs a lot better and virtually took out all of the popping from the exhaust. My times only improved slightly however I was having a terrible time getting enough traction off the line this year. Like I said I'm not sure of the purpose of this chunk of rubber, maybe water control or noise control but mine has become a permanent wall decoration. So not only is this mod free it also leaves you a very artful looking chunk of rubber to hang in your ManCave.

Yes back in the 08 GS days that was one of the first thing done along with K&N air filter Along with Two Bros or Hmf or other aftermarket exhaust..and 02 modifier.Those Tubes got put in the Junk Box....Still have mine somewhere in garage...OOPS

forgot about Performance plug wires and NGK Iridium plugs...


Freebob...:doorag:

 

[SpyderGirl]

Mo, I am very glad I stumbled upon this post. Tomorrow that thing is GONE!! I am going to at least shorten it, if not remove it all together. Thanks for the tip man! I'm tired of the popping on my Yoshi under decel.

Gonna miss you and Leslie at SITR this year. See ya around.

 

[Mo Lee]

Mo, I am very glad I stumbled upon this post. Tomorrow that thing is GONE!! I am going to at least shorten it, if not remove it all together. Thanks for the tip man! I'm tired of the popping on my Yoshi under decel.

Gonna miss you and Leslie at SITR this year. See ya around.

I thing you will be suprised, not sure if it will help to just cut it down. Mine has been removed since March and the only possible reason I can see for it is maybe in heavy rain. I think it may have improved fuel mileage as well but not sure because I don't think I've ever checked my mileage. We barely found time to attend Spydefest this year, work has been crazy and kids getting stationed back stateside has our calendar full.

 

[SpyderGirl]

I thing you will be suprised, not sure if it will help to just cut it down. Mine has been removed since March and the only possible reason I can see for it is maybe in heavy rain. I think it may have improved fuel mileage as well but not sure because I don't think I've ever checked my mileage. We barely found time to attend Spydefest this year, work has been crazy and kids getting stationed back stateside has our calendar full.

I totally understand. I will do this tomorrow when I change the fuel filter. I've got a 2,000 mile round trip to CA next Friday. That will be a great test. Any issues with rain or water?

 

[Mo Lee]

I totally understand. I will do this tomorrow when I change the fuel filter. I've got a 2,000 mile round trip to CA next Friday. That will be a great test. Any issues with rain or water?

Not yet, I'm pretty sure it will not be a problem except maybe in a downpour. Actually that is the main reason I went this route instead of building a whole new air filter setup with ram air. With this setup the air come in below the filter and then pulled upward to help remove the water from the air. Also disconnect your battery while you are doing this (30 minutes or so) this will allow to ecu to clear and seems to help it learn the new flow settings faster.

 

[SpyderGirl]

I'm installing a custom heat shield to reduce engine heat from entering the box.

 

[SpyderGirl]

Finished!

 

[Mo Lee]

Finished!

Let me know if it helps.

 

[SpyderGirl]

Let me know if it helps.

Just got back from a 20 mile ride. It's 92° here. Tested at varying speeds and plenty deceleration and downshifting. It reduced the popping by half, a more even idle, and it's running much cooler.