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Thread: Ltr 500 intake on lsr no link

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    Racer Dirt man's Avatar
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    Ltr 500 intake on lsr no link

    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.
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    Last edited by Dirt man; 08-30-2015 at 07:45 PM.
    It goes fast over bumps too!

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    Racer Dirt man's Avatar
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    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.
    It goes fast over bumps too!

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    Racer ytman's Avatar
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    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.

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    Pro-X rk88r's Avatar
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    The lt500 filter is not a clamp on style. I made an adapter that has a 10 degree angle in it.
    '99 Laeger narrow, cr link, +3+1 protrax, Peps, with a LED 363
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    A 450 filter has the same size inlet as the zilla boots, we ran 450 and 250r filters on the zillas.

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    Racer ytman's Avatar
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    cool. let's see 'em

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    Racer Dirt man's Avatar
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    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.
    It goes fast over bumps too!

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    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.

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    Hall filter setup.

    Sent from my SAMSUNG-SM-G890A using Tapatalk

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    This was for the stock setup

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    Racer ytman's Avatar
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    Thanks for sharing Skeans1. I always like to see different set ups

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    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!!
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    Pro-X rk88r's Avatar
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    Quote Originally Posted by Skeans1 View Post
    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?
    '99 Laeger narrow, cr link, +3+1 protrax, Peps, with a LED 363
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    Yes I am Rick Bd-6500 is the K&N part number.

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    Quote Originally Posted by supernutt View Post
    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.

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    Pro-X rk88r's Avatar
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    '99 Laeger narrow, cr link, +3+1 protrax, Peps, with a LED 363
    '88 265 pv peps
    One other '88

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    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?

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    Racer Langbolt's Avatar
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    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-TRX2...-Chassis/page3


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