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wisco310r

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Discussion starter · #1 ·
Hi everyone, I have a trx9 ported 310 esr bb cylinder with a +3 crank, 38mm a/s, esr reed block. I want to put the best pipe for this set up on my trike. If anyone can give me advice I would greatly appreciate it. I do duning, lots of high speed operation. Thanks Michael
 
My ESR ATC5 pipe works quite well on my ESR 78mm, stock stroke (344).

The only downside is ESR has had issues with the chrome plating and it's lack of durability. I have about 6 hours ride time on my pipe and there are a couple spots that plating is beginning to flake off...
 
A 310 isnt big enough to worry about having a big bore pipe. My pipe would be a good option for you and would be even better if you went with a bigger carb. Im working on building a lowend pipe right now. Should be done in a month or so. Is your 310 ported for the 3mill crank?
 
Man that oof is cool looking. Esr's 5 seems to be the most popular on this forum. I have one on my fourtrax and I like it. Order it unfinished and have someone chrome it if you want it to be pretty for longer.
 
On a 310CC cylinder, I would not suggest the ATC5 pipe, it is IMO to large of a pipe to be as effective as possible. I would use the PT HR ATC Pipe on 310CC and under or wait untill NOS_350x completes his small bore (<310CC) pipes.

Carlos
 
Discussion starter · #9 ·
A 310 isnt big enough to worry about having a big bore pipe. My pipe would be a good option for you and would be even better if you went with a bigger carb. Im working on building a lowend pipe right now. Should be done in a month or so. Is your 310 ported for the 3mill crank?
Yes, my cylinder is ported for a +3, I maybe switching to a 330 ported for my +3, so I would like to get a pipe that will run well with my future upgrade.
 
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