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Workshop => The Mad Scientist => Topic started by: Dirt man on August 30, 2015, 02:36:08 PM

Title: Ltr 500 intake on lsr no link
Post by: Dirt man on August 30, 2015, 02:36:08 PM

I'm wondering if or how much  the lt 500 air filter is bigger than a stock 250r air filter. I'm trying to fit a air box around the filter.  If I go to a lt 500 air filter it will move the filter forward a half inch which will help. If the lt 500 air filter is a lot bigger than a stock 250r then I'm not gaining anything.

Title: Ltr 500 intake on lsr no link
Post by: Dirt man on August 30, 2015, 02:39:51 PM

I built an adapter to run a stock filter with the 500 intake....  This moves the filter closer to the brake caliper and rear sprocket which creates more clearance issues.

Title: Ltr 500 intake on lsr no link
Post by: ytman on August 30, 2015, 04:59:27 PM

I don't understand. Won't the bigger filter clamp on in the same place? You still need a sleeve between the boot and the filter.

Title: Ltr 500 intake on lsr no link
Post by: rk88r on August 30, 2015, 05:07:39 PM

The lt500 filter is not a clamp on style. I made an adapter that has a 10 degree angle in it.

Title: Ltr 500 intake on lsr no link
Post by: Skeans1 on August 30, 2015, 05:37:04 PM

A 450 filter has the same size inlet as the zilla boots, we ran 450 and 250r filters on the zillas.

Title: Ltr 500 intake on lsr no link
Post by: ytman on August 30, 2015, 05:42:27 PM

cool. let's see 'em

Title: Ltr 500 intake on lsr no link
Post by: Dirt man on August 30, 2015, 06:32:10 PM

I am going to use the lt 500 boot.  The problem is the ID of the 500 boot is bigger than the OD of the stock 250r filter. So a adapter is needed to get the two to connect. My goal is to not use an adapter and this will allow the filter to move closer to the carb which will make more room for a air box.

Title: Ltr 500 intake on lsr no link
Post by: Skeans1 on August 30, 2015, 06:51:06 PM

A stock zilla filter has a screw through the rear of the cage that secured it to the air box flange. A 450r has the 4.5" inlet just like a zilla boot. Hall uses a 6" filter that's 10" or 12" long filter.

Title: Ltr 500 intake on lsr no link
Post by: Skeans1 on August 30, 2015, 07:07:05 PM

(http://i58.tinypic.com/hx9jl0.jpg)
Hall filter setup.

Sent from my SAMSUNG-SM-G890A using Tapatalk

Title: Ltr 500 intake on lsr no link
Post by: Skeans1 on August 30, 2015, 07:09:43 PM

(http://i62.tinypic.com/mwwart.png)
This was for the stock setup

Title: Ltr 500 intake on lsr no link
Post by: ytman on August 30, 2015, 07:29:33 PM

Thanks for sharing Skeans1. I always like to see different set ups

Title: Ltr 500 intake on lsr no link
Post by: supernutt on August 30, 2015, 09:43:53 PM

Dam Skeans1, I was on the quadracer site looking for that exact picture of a HPR intake setup!!!!  Thanks for the pic!!  It really helped me out!!

Title: Ltr 500 intake on lsr no link
Post by: rk88r on August 30, 2015, 10:17:16 PM

Quote from: Skeans1;57761

A 450 filter has the same size inlet as the zilla boots, we ran 450 and 250r filters on the zillas.

Are you sure the 06+ 450 filter is a 4 1/2 inlet?

Title: Ltr 500 intake on lsr no link
Post by: Skeans1 on August 30, 2015, 10:25:53 PM

Yes I am Rick Bd-6500 is the K&N part number.

Title: Ltr 500 intake on lsr no link
Post by: Skeans1 on August 30, 2015, 10:26:52 PM

Quote from: supernutt;57772

Dam Skeans1, I was on the quadracer site looking for that exact picture of a HPR intake setup!!!!  Thanks for the pic!!  It really helped me out!!

No problem if you need more I have some of my setup off my Zilla as well I can post.

Title: Ltr 500 intake on lsr no link
Post by: rk88r on August 31, 2015, 06:45:54 AM

http://www.knfilters.com/search/product.aspx?prod=BD-6500

I'm reading 4 inches.

Title: Ltr 500 intake on lsr no link
Post by: Skeans1 on August 31, 2015, 07:58:45 AM

Thanks Rick I looked at the wrong spec, would it be easier if the filter was almost the size of the frame rails? They you guys could just fill the rails and then a bottom piece maybe?

Title: Ltr 500 intake on lsr no link
Post by: Langbolt on August 31, 2015, 12:53:57 PM

I used the Zilla boot on my hybrid....it's 4.5" ID and I used a K&N filter - Part#RU-3480

See here for pics

http://trx250r.org/threads/4899-TRX250R-Motor-in-a-TRX450R-Chassis/page3

:)