New air box - Page 6

SFKLR · 03-22-2012, 11:31 AM

Still waiting on the 950 air filter here ...

BTW, what are "stacks"?

TheMuffinMan · 03-22-2012, 11:37 AM

Quote:

Originally Posted by SFKLR

Still waiting on the 950 air filter here ...

BTW, what are "stacks"?

http://en.wikipedia.org/wiki/Velocity_stack

Basically the black horn looking things that stick out of the carbs/injectors.

cjracer · 03-22-2012, 11:57 AM

The RC8 Stack or "Trumpet" as KTM calls it is shorter than the 990 ADV ones.

Thinking is that the shorter stack should let it more air for higher HP#s.

The Longer 990 ADv ones result in more torque.

These will be here soon for testing.

BTW,
Air filters just showed up so I hope to start shipping out Fri and Sat.

Spark01 · 03-22-2012, 02:16 PM

Quote:

Originally Posted by cjracer

The RC8 Stack or "Trumpet" as KTM calls it is shorter than the 990 ADV ones.

Thinking is that the shorter stack should let it more air for higher HP#s.

The Longer 990 ADv ones result in more torque.

These will be here soon for testing.

BTW,
Air filters just showed up so I hope to start shipping out Fri and Sat.

The orginal stacks for the 990 motor (Adv,superduke,SM/T/R) are the same
The RC8 stacks with 2nd flies removed used in a airbox should give a gain starting from 6500rpm till limiter.
But it doesn't loose torque down below.

And the fun part is they cost allmost nothing, i paided 5 euro (6-7 US dollars).

example from a superduke:

http://www.superduke.net/forum/viewt...rt=625#p221658

SFKLR · 03-22-2012, 02:22 PM

Quote:

Originally Posted by cjracer

BTW,
Air filters just showed up so I hope to start shipping out Fri and Sat.

The ones for the carb'd 950s?

Spark01 · 03-22-2012, 02:33 PM

Quote:

Originally Posted by Locul@hotmail.com

hi would these filters fit the rc8 or could it be done. my project is loosing weight where possible and this is very simple.

The RC8 stacks fit the standard 990 throttle body soo the hole size in the base plate are the same.

I measured the distance between the middle of the 2 holes and it is 12,6 cm
So if the distance between the middle of the 2 throttle bodies from the RC8 are the same...
And if you have more then 4cm distance between the throttle body and the frame...then it could fit??.

Johnf3 · 03-22-2012, 02:53 PM

Quote:

Originally Posted by SFKLR

The ones for the carb'd 950s?

No 950 filters yet. Two more weeks at least.

torinreality · 03-22-2012, 03:20 PM

Has there been much discussion about socks for these filters? That'd be super convenient.

dad2bike · 03-22-2012, 03:23 PM

I was thinking of takng mine down to Home Depot (when I get it) and see if one of the foam filters for a shop vac would be the right size. That would make it kind of a twin air.

K2m · 03-22-2012, 03:35 PM

Quote:

Originally Posted by tahoeacr

That's good info. I've cut the bottom of the shelf in my glove box off to make room for sensors. I could do the same thing and see if their is some pressure in there. I usually have a tank bag on that holds my wide band and data logging so my glove box is always strapped down. Your shrouds are helping alot. A 950 that doesn't run the fan in Summer traffic

.Great idea. I suspect that the fork legs create vortexes that probably spill over the stock fairing. The notch only being three inches from the radiator. Speculation of course since you can't really tell what's going on unless your in a wind tunnel. I've done some aero testing with various teams I've worked for. Some even had a big enough budget to afford wind tunnel testing. I thought that would be fun but it is one boring day I tell you. Looks like you have more than doubled that distance plus widened it out a couple inches. Nice mod with good results.
Suppose I could data log the airbox pressure sensor. Do some pulls on the dyno with no fans for a base line setting, then go ride and see what I get.

Just tying up a loose end here.......
I took some photos of the cover that was being lifted off at speed. As the air that passes through the radiator it is isolated from the carbes I know that the shrouds that I made are not responsible for pushing air to the carbes so this is air traveling through the steering stem area putting pressure around the carbes. My answer to the popping cover was to bolt it down This is the cover on the seat side lifting and flexing its clip open. It takes some pressure to do that.

cjracer · 03-22-2012, 05:00 PM

Quote:

Originally Posted by torinreality

Has there been much discussion about socks for these filters? That'd be super convenient.

A lot.... we've been working on that.

This project got huge before lots of little details could be worked out, but this will only get better.

Lots more info in Vendors.

LocuL · 03-23-2012, 12:50 AM

Quote:

Originally Posted by Spark01

The RC8 stacks fit the standard 990 throttle body soo the hole size in the base plate are the same.

I measured the distance between the middle of the 2 holes and it is 12,6 cm
So if the distance between the middle of the 2 throttle bodies from the RC8 are the same...
And if you have more then 4cm distance between the throttle body and the frame...then it could fit??.

thanks. i will measure today.

EdGear · 04-02-2012, 11:35 AM

Got my CPR Rottweiler through CJ and installed it yesterday.

I had to remove the SAS which was a PITA.
Followed instructions in the HOW and was doing great until re-reading and noticing the Edit at the end.
Had to remove the throttle bodies again to add the intake vent connection.

Anyone tell me what purpose the intake vent connection serves, pressure balancing?

Once you have the air box off there is lots of room to work and installing the Rottweiler is pretty straight forward.
I was worried about water splashing up and heat coming off the engine.
I made a prototype barrier under the Rottweiler base plate out of aluminum flashing.

Put everything bad together and the bike started fine, no SAS FI faults.

Looking straight down to see flashing in front of filter

Once I get the flashing dialed in I use slightly thicker material and add heat shield.
I'm also thinking about raising up the glovebox base about 1/4 inch.
This would form a slot all the way around the glovebox mask to allow air in.
Should work even with a tank bag.

Michhub · 04-02-2012, 11:46 AM

What is your plan for mapping?

EdGear · 04-02-2012, 01:48 PM

Quote:

Originally Posted by Michhub

What is your plan for mapping?

I have a 2 into 1 with Akra with quiet insert. This ran fine with the stock map. I'll give that a try but will be learning how to use Tune ECU shortly.

03-22-2012, 11:57 AM	#78
cjracer AWD please!! Joined: Sep 2005 Location: Mukwonago, WI Oddometer: 3,866	The RC8 Stack or "Trumpet" as KTM calls it is shorter than the 990 ADV ones. Thinking is that the shorter stack should let it more air for higher HP#s. The Longer 990 ADv ones result in more torque. These will be here soon for testing. BTW, Air filters just showed up so I hope to start shipping out Fri and Sat. __________________ My 2006 950S thread. 2006 950s update New product updates here! Wordpress BLOG click www.cjdesignsllc.com for the full line of products. www.outriderjournal.com FREE STUFF!!

03-22-2012, 03:23 PM	#84
dad2bike Cranky Old Fart Joined: Aug 2007 Location: Las Vegas, NV Oddometer: 2,325	I was thinking of takng mine down to Home Depot (when I get it) and see if one of the foam filters for a shop vac would be the right size. That would make it kind of a twin air. __________________ Tom 2006 950 Adventure "Big Orange", 2009 690R "Ginger", 2003 525 EXC, 2001 400 EXC To Think is to Create!http://my2wheels.com/forum/cmps_index.php

04-02-2012, 11:35 AM	#88
EdGear Edventurer Joined: Oct 2008 Location: Bay Area, CA Oddometer: 497	Got my CPR Rottweiler through CJ and installed it yesterday. I had to remove the SAS which was a PITA. Followed instructions in the HOW and was doing great until re-reading and noticing the Edit at the end. Had to remove the throttle bodies again to add the intake vent connection. Anyone tell me what purpose the intake vent connection serves, pressure balancing? Once you have the air box off there is lots of room to work and installing the Rottweiler is pretty straight forward. I was worried about water splashing up and heat coming off the engine. I made a prototype barrier under the Rottweiler base plate out of aluminum flashing. Put everything bad together and the bike started fine, no SAS FI faults. Looking straight down to see flashing in front of filter Once I get the flashing dialed in I use slightly thicker material and add heat shield. I'm also thinking about raising up the glovebox base about 1/4 inch. This would form a slot all the way around the glovebox mask to allow air in. Should work even with a tank bag. __________________ Get out and ride 2007 KTM 990 Adventure 2006 KTM 640 Adventure 2002 KTM 400/453 EXC

04-02-2012, 11:46 AM	#89
Michhub Major Medical Joined: Aug 2006 Location: Maricrapa AZ Oddometer: 3,191	What is your plan for mapping? __________________ Mike Reinheitsgebot '07 990ADV '08 530EXCR '04 XR650L Bonsai Elephant - "Life without a 990 is no life at all!"

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03-22-2012, 11:31 AM	#76
SFKLR BeniciaKTM? Joined: Jun 2006 Location: Benicia, CA Oddometer: 1,000	Still waiting on the 950 air filter here ... BTW, what are "stacks"?

03-22-2012, 03:20 PM	#83
torinreality metaconscious Joined: Mar 2011 Location: Vancouver, Canada Oddometer: 57	Has there been much discussion about socks for these filters? That'd be super convenient.