Modifications - Performance Discuss aftermarket and DIY performance modifications

DAM K&N

Old 06-02-2019, 04:15 PM
  #1  
Senior Member
Superstock
Thread Starter
 
CaryDG's Avatar
 
Join Date: Sep 2013
Location: Costa Mesa, CA
Posts: 297
CaryDG is on a distinguished road
DAM K&N

I acquired a K&N filter with my SH when I purchase it years ago. I, like many others, was never able to get it to run just right with it so I went with 8451 Hawks guidelines with an OEM filter and have loved it for over 30k miles. I've read everything from K&N's causing turbulence to slide flutter. What ever the cause, I was looking at my unused K&N, and was bored, I decided to fabricate a dam/baffle similar to what is part of the OEM filter. So now it's like the stocker in configuration. Only the element is different. I did a half dozen plug chops and settled on an additional .20 additional spacer under the OEM needles and a 1/4 turn out on the fuel screws and it seemed okay. I took 'er for a 320 mile test ride today. the ride was a combination of 215 hilly curves and a 105 mile of freeway. Going from sea level to 7350 ft. elevation and back. Temps varied from 59 - 93 degree. Amazingly I found no noticeable flat spots or other carburation glitches! It "seemed" to run better at all rev ranges and altitudes. When my local dyno ban (long story) is over I'll see what the reality is. Another plus is that that YLOD doesn't come on until about 115 mi. I do run a 19 liter tank. so I picked up about 10% better mileage. It's apparent that I'm running leaner, but it's barely detectable on the plugs after 6 readings on new plugs. I readying a set of extra head pipes with bungs for AFR readings out of each cylinder rather than the (mixed) tail pipes. So, Dam the K&N! It works, for me. I should mention that I have Two Brothers Head Pipes, Yosh slip-ons, Dr. Honda stacks, TPS @500 ohms, 48 pilots, 175 frt. & 178 rr. mains, Shimmed OEM needles with 2 lift holes in stock slides.
CaryDG is offline  
Old 06-02-2019, 04:52 PM
  #2  
Member
Squid
 
Join Date: Feb 2019
Posts: 64
VTRsquid is on a distinguished road
Originally Posted by CaryDG View Post
I acquired a K&N filter with my SH when I purchase it years ago. I, like many others, was never able to get it to run just right with it so I went with 8451 Hawks guidelines with an OEM filter and have loved it for over 30k miles. I've read everything from K&N's causing turbulence to slide flutter. What ever the cause, I was looking at my unused K&N, and was bored, I decided to fabricate a dam/baffle similar to what is part of the OEM filter. So now it's like the stocker in configuration. Only the element is different. I did a half dozen plug chops and settled on an additional .20 additional spacer under the OEM needles and a 1/4 turn out on the fuel screws and it seemed okay. I took 'er for a 320 mile test ride today. the ride was a combination of 215 hilly curves and a 105 mile of freeway. Going from sea level to 7350 ft. elevation and back. Temps varied from 59 - 93 degree. Amazingly I found no noticeable flat spots or other carburation glitches! It "seemed" to run better at all rev ranges and altitudes. When my local dyno ban (long story) is over I'll see what the reality is. Another plus is that that YLOD doesn't come on until about 115 mi. I do run a 19 liter tank. so I picked up about 10% better mileage. It's apparent that I'm running leaner, but it's barely detectable on the plugs after 6 readings on new plugs. I readying a set of extra head pipes with bungs for AFR readings out of each cylinder rather than the (mixed) tail pipes. So, Dam the K&N! It works, for me. I should mention that I have Two Brothers Head Pipes, Yosh slip-ons, Dr. Honda stacks, TPS @500 ohms, 48 pilots, 175 frt. & 178 rr. mains, Shimmed OEM needles with 2 lift holes in stock slides.
Good work and great write up. But i need to know more about this dyno ban....... sounds like a good story!
VTRsquid is offline  
Old 06-02-2019, 06:13 PM
  #3  
Thread Killer
SuperBike
 
Join Date: Apr 2013
Location: Geneseo, IL
Posts: 1,626
VTR1000F is on a distinguished road
Why did you post about your dyno ban and waste all the space talking about carb set-ups and air filters?

Click bait.
VTR1000F is offline  
Old 06-02-2019, 10:06 PM
  #4  
Senior Member
Superstock
Thread Starter
 
CaryDG's Avatar
 
Join Date: Sep 2013
Location: Costa Mesa, CA
Posts: 297
CaryDG is on a distinguished road
VTRsquid, I got temporarily banned from the local dyno because myself, and a couple of other old guys, were paying the guy who ran the dyno a few bucks to let us test the tuning of our bikes. The problem was that we could only do it when the business owner was out of town. Well, long story endless, he got caught trying to retrieve some printouts for us and the owner got rather pissed and rightfully so. He missed out on a lot of chargeable hours @ $150 per hour. The group got together and pleaded with the owner to let him keep his job. He bought it with the conditions that we could not use his dyno until we paid for all the hours we had used! In fact he asked us not to step foot on the premises until we did. I don't know about the others, but since 2016 I've used at least 20 hours! Do the math.
VTR1000F, ….NVM
CaryDG is offline  
Old 06-03-2019, 02:24 AM
  #5  
Member
Squid
 
Join Date: Feb 2019
Posts: 64
VTRsquid is on a distinguished road
Yikes! Thats quite an obligation.
VTRsquid is offline  
Old 06-03-2019, 02:34 AM
  #6  
Senior Member
Superstock
 
Join Date: Jul 2018
Posts: 262
ACE VenTRa is on a distinguished road
Lol, that's expensive dyno time. It is what it is though right.
ACE VenTRa is offline  
Old 06-03-2019, 04:17 AM
  #7  
Moderator
MotoGP
 
Wolverine's Avatar
 
Join Date: Jul 2007
Location: Gettysburg, Pa
Posts: 4,477
Wolverine is on a distinguished road
I ran a K&N for years with great results. Never wrote down what I did exactly to the carbs, next time I'm in there I'll have to. I posted here but don't feel like spending hours of my time trying to search for it. Like mentioned, I was tickled for years, then I went and set the TPS near 500 and it took a turn for the worse. Can't explain why, but I ended up buying a HiFlo brand filter and slapping it in. I got a little better, so I backed the tps off to about 520 and left it there. One of these days I'll get back to the K&N.
Wolverine is offline  
Old 06-03-2019, 04:35 PM
  #8  
Member
Squid
 
Join Date: Jul 2018
Location: Champaign, IL
Posts: 67
YMRacing is on a distinguished road
I've used K&N filters on all sorts of vehicles...in the beginning I found I was being to **** retentive and cleaning them too often...seem to need a bit of restriction to work properly, otherwise jet like you're not running any filters at all...
YMRacing is offline  
Old 06-04-2019, 02:57 AM
  #9  
Senior Member
Superstock
 
Join Date: Jul 2018
Posts: 262
ACE VenTRa is on a distinguished road
Originally Posted by YMRacing View Post
I've used K&N filters on all sorts of vehicles...in the beginning I found I was being to **** retentive and cleaning them too often...seem to need a bit of restriction to work properly, otherwise jet like you're not running any filters at all...
The only time I use K&N with any luck is if I soak it in ATF and let it drip over night. Periodically clean I it with soap and water. I have known many people to drop them in with no oil, or to oil the hell out of them and drop them right in expecting performance and miracles. That being said, if I find a used cheap one I can be tempted to run it.

AV
ACE VenTRa is offline  
Old 06-04-2019, 07:05 AM
  #10  
Senior Member
SuperBike
 
Wicky's Avatar
 
Join Date: Sep 2008
Location: Essex, UK
Posts: 1,636
Wicky is on a distinguished road
Mine is fitted with a K&N after setting up professionally with a several dyno runs and rejetting way back in 2001 - since then just needed every couple of years servicing with a cleaner spray and reoiling with recommnded oil.

https://www.knfilters.com/cleaning.htm
Wicky is offline  
Old 06-04-2019, 09:41 AM
  #11  
Senior Member
Superstock
Thread Starter
 
CaryDG's Avatar
 
Join Date: Sep 2013
Location: Costa Mesa, CA
Posts: 297
CaryDG is on a distinguished road
Yup, I run K&Ns in all my street vehicles (5) and now in my SH. A little pricey at the outset but way worth it in the long run. Treat them as they are designed and I can go lots of miles between services. Even when they appear dirty they still flow great.
CaryDG is offline  
Old 06-08-2019, 08:15 PM
  #12  
Senior Member
SuperBike
 
NHSH's Avatar
 
Join Date: Jul 2011
Location: South of Live Free or Die & North of Family Guy
Posts: 1,394
NHSH is on a distinguished road
Very interesting, I use 8451Hawk setup with the OEM filter and I am very happy with it! I did read that K&N never worked well, I guess you solved it ;-)
NHSH is offline  
Old 06-09-2019, 07:04 PM
  #13  
Member
Squid
 
Join Date: Feb 2019
Posts: 64
VTRsquid is on a distinguished road
Yeah I had good luck ditching the pipercross filter my bike came with in favour of an OEM. Its got smooth torque all over the place now. Pretty sure my bike was dealer fitted with the Yoshi pipes and jetted as a package. Seems like a lot of unnecessary agro trying to rejett a bike for an extra 5hp through trial and error unless you enjoy the process.
VTRsquid is offline  
Old 06-10-2019, 01:43 PM
  #14  
VTR virgin
Superstock
 
Cadbury64's Avatar
 
Join Date: Mar 2015
Location: Auckland, New Zealand
Posts: 408
Cadbury64 is on a distinguished road
I too have had K&N in many bikes, and I put one in my VTR when I first bought it, and before I read that it would be a bad idea. My VTR runs beautifully, super smooth idle and pick-up, completely glitch-free. I have reset the TPS to 500, carbs are stock, I have gutted stock mufflers and I do my own carb balancing regularly.
Cadbury64 is offline  
Old 06-11-2019, 05:00 AM
  #15  
Senior Member
MotoGP
 
smokinjoe73's Avatar
 
Join Date: Jul 2007
Location: NYC
Posts: 4,923
smokinjoe73 is on a distinguished road
So any pics of your custom air dams/ spacers / setup? Sounds tuned to the job.

I have a k&n laying around that of course didn't ever work right.
smokinjoe73 is offline  
Old 06-11-2019, 08:30 AM
  #16  
Senior Member
Superstock
Thread Starter
 
CaryDG's Avatar
 
Join Date: Sep 2013
Location: Costa Mesa, CA
Posts: 297
CaryDG is on a distinguished road
Smokinjoe, I'll shoot some pics of my dam tonight and post them.
CaryDG is offline  
Old Yesterday, 09:05 PM
  #17  
Senior Member
Superstock
Thread Starter
 
CaryDG's Avatar
 
Join Date: Sep 2013
Location: Costa Mesa, CA
Posts: 297
CaryDG is on a distinguished road
Smokinjoe73 Here you go;





OEM filter w/dam, Air box lid, K&N, Air Box w/ added dam, and in she goes.
CaryDG is offline  
Old Yesterday, 09:11 PM
  #18  
Senior Member
Superstock
Thread Starter
 
CaryDG's Avatar
 
Join Date: Sep 2013
Location: Costa Mesa, CA
Posts: 297
CaryDG is on a distinguished road
And yes, VTR tanks can be tilted without disconnecting any lines. Makes it easy to service, sync, pull carbs Etc.

Last edited by CaryDG; Today at 03:41 PM. Reason: wrong information
CaryDG is offline  
Old Yesterday, 09:12 PM
  #19  
Senior Member
Superstock
Thread Starter
 
CaryDG's Avatar
 
Join Date: Sep 2013
Location: Costa Mesa, CA
Posts: 297
CaryDG is on a distinguished road
And don't try it with more than a half tank of fuel!
CaryDG is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
skokievtr
General Discussion
3
12-01-2008 03:14 PM
Condor
RANT!
51
09-19-2008 10:27 AM
selztoad
Classifieds
6
02-16-2008 07:29 PM
mikecronis
General Discussion
8
12-22-2007 12:32 PM


Thread Tools
Search this Thread
Quick Reply: DAM K&N


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.

All times are GMT -7. The time now is 06:07 PM.


© 2019 MH Sub I, LLC dba Internet Brands