Author Topic: esr or prox 350 or 370 kit for atc250r (Read 17549 times)

Rupp250 · « **Reply #30 on:** August 20, 2014, 01:15:58 PM »

Quote from: udontknowme;41311

if you need a pipe made your best bet is to find someone thats familiar with that particular engine and has made pipes for it before. they will likely have some good insight on what works. the best pipe maker really doesnt meen much if they have no experience with that engine, as it would pretty much be a shot in the dark for them.r

I believe Mat does have experience with ESR cylinders.

But a off the shelf ESR pipe will probably perform adequate for the OP.

96motorhead · « **Reply #31 on:** August 20, 2014, 02:19:29 PM »

If I can get a raw esr atc5 I would so that. I like the raw look more to be honest, I just need to keep a ton of wd40 on it.

udontknowme · « **Reply #32 on:** August 20, 2014, 10:33:17 PM »

if theres a atc pipe available im sure it would be fine. something from arlen wouldnt be a bad choice. 100x better than a fmf thats for sure. fmf has always rubbed me the wrong way. $200-$300 and they do almost nothing for performance. im not up to date with atc stuff so im not sure whats out there . thats why i made the last post. some bikes arent so common and need a pipe made

cant say i ride in water much. mostly sand and occasional dirt but i rarely put any oil on the pipe. got 3 bikes with raw pipes and theyre all doing fine.

aberegg05 · « **Reply #33 on:** August 20, 2014, 10:45:22 PM »

Ive heard good things about eddies atc5 pipe. Heres the link. Theyr out of stock at the moment.http://www.eddie-sanders-racing.com/product_p/atc250r%20ps%20kit.htm

96motorhead · « **Reply #34 on:** August 20, 2014, 11:02:29 PM »

I agree, I will NEVER own any FMF pipe so nobody even bother recommending that, their stuff just makes racket. My dad only runs his bike at glamis and ocotillo and his raw paul turner rusted. That esr pipe/silencer combo you linked is what I was gonna probably end up getting. Also which port job is better for duning and drag racing, the trx9 or trx11?

aberegg05 · « **Reply #35 on:** August 20, 2014, 11:23:43 PM »

The trx11 is good for drag. My trx9 is a mid to high port. I trail ride with that also but can rip in the open.

patman13mia · « **Reply #36 on:** August 21, 2014, 11:30:34 AM »

Hey im gona be riding some dunes up here in washington this weekend. Ill post some videos up and you can see how my esr350 all around port with a trx5 pipe performs on straights and hill climbs.. That can give ya atleast a small look as to if you want a 350 or 370 ya know..

96motorhead · « **Reply #37 on:** August 21, 2014, 11:47:48 AM »

Cool, I'd like to see a video.

Jerry Hall · « **Reply #38 on:** August 22, 2014, 10:11:49 AM »

Quote from: udontknowme;41311

if you need a pipe made your best bet is to find someone thats familiar with that particular engine and has made pipes for it before. they will likely have some good insight on what works. the best pipe maker really doesnt meen much if they have no experience with that engine, as it would pretty much be a shot in the dark for them. and without time to test and develop it further beyond the initial first design, most likely it will only perform on a mediocre level. im sure arlen, jerry and eddie would all tell you the same thing. takes time to get a pipe working really well. ive went through this stuff before when cpi made a pipe for me. good chance it might of been the first pipe he ever did for a old ktm. with one chance to get it right, the odds werent in his favor. ya it works and runs ok but i have no doubts if a sent him a pile of cash he could develop the pipe further and get more power

This is very true. The chance of a pipe fresh off the drawing board being anywhere close to optimum is not very good. All of us pipe builders do calculations, use computer programs and rely on years of past experience when we design a new pipe. I see too many new pipe builders advertising their custom built pipes in a way that leads potential customers to believe that the software these new pipe builders are using will not need any further development. This is misleading and a blatant admission of their level of experience in designing/developing pipes.

patman13mia · « **Reply #39 on:** August 28, 2014, 04:31:11 PM »

Alright well i guess i lied.. I took 2 days of riding videos on a 32gb card. Had some cool shots and a big utv wreck that flipped over. When i try to upload them it keeps telling me the files are corrupt!! Its pissing me off!! I even called me nerdy friend over that knows tons about electronics and he said my go pro took a dump!! Wont record anything.. Sorry guys!!! I really wanted to upload them damn vids to. Ima purchase another over the winter and ill post more up next year.

Skeans1 · « **Reply #40 on:** August 29, 2014, 02:01:09 AM »

Where at in Washington? Moses Lake?

patman13mia · « **Reply #41 on:** August 29, 2014, 03:53:33 AM »

Yepp was up there this past weekend. You ride there? Where you located?

Skeans1 · « **Reply #42 on:** August 30, 2014, 01:05:17 PM »

Rainier, Or across the river from Longview, WA. Never rode there being it'd be a toss up to go to Moses Lake for Florence from here.

patman13mia · « **Reply #43 on:** August 30, 2014, 04:47:36 PM »

Ahh man i would def hit up oregon dunes!! Ive rode both and moses is half the play ground the oregon dunes are but its about 4 hours shorter of a ride for me so thats where we end up more. Maybe next year we could meet up out there and ride