Author Topic: Esr (Read 10853 times)

havinnoj · « **Reply #15 on:** January 24, 2014, 06:45:28 PM »

Quote from: aberegg05;23293

Ever heard of a dyno port pipe? I have one and never heard of them

They show up once and a while in the R community. Some guys swear by them while others have never heard of them. Personally, I've never seen one nor have I seen dyno comparisons with other similar pipes. Dynoport seems to be more popular in the sled industry than the ATV industry.

etccb · « **Reply #16 on:** January 24, 2014, 06:51:08 PM »

If you can ride now pull that fmf and try it out. You are going big though so a b pipe might be better for you from that point alone. Just watch your temps a bit if you run this with your new kit at first to see where your going to be at.

05450r · « **Reply #17 on:** January 24, 2014, 07:00:36 PM »

Dyno port or Krank-It are killer small bore pipes!! But like etccb said above, your up there in the higher cc range and it may not be enough pipe. My Krank-it pipe flat out killed my Sparks Mx on a Hall ported 265, biggest mistake I ever made selling that pipe/silencer. Fyi, Scott at Krank-it hand welded/built pipes from Dyno port stamped pieces that he got from them.

aberegg05 · « **Reply #18 on:** January 24, 2014, 07:44:14 PM »

05450r · « **Reply #19 on:** January 24, 2014, 08:01:49 PM »

Yep, good pipe there. Do you have the other piece and the silencer?

aberegg05 · « **Reply #20 on:** January 24, 2014, 08:24:15 PM »

Yes I sure do. Whole exhaust

aberegg05 · « **Reply #21 on:** January 24, 2014, 08:28:25 PM »

How would this pipe do with my set up?

05450r · « **Reply #22 on:** January 24, 2014, 09:05:59 PM »

It might be on the small side, like ecctb said you would have to watch your temps pretty close. On a side note though, pm me if you ever decide to sell it!

Jar350r · « **Reply #23 on:** January 24, 2014, 10:13:16 PM »

LED got esr cylinders!!! Let him do your work for you that's if you don't want to spend the extra on a LED cylinder. I posted a dyno chart from my cylinder port by esr and then fix by Arlen at LED

etccb · « **Reply #24 on:** January 25, 2014, 01:40:24 AM »

That chart posted shows a trx7 low end woods port and trx 9b top end pipe. That is not a match to compare to anything that was made to work together and doesn't really represent itself.

Jar350r · « **Reply #25 on:** January 25, 2014, 11:36:54 AM »

Arlan tested Esr cylinder with 3 pipes and it never got over 54 hp just go Ed to show how a properly set up motor will do

Tador · « **Reply #26 on:** November 20, 2014, 01:08:24 PM »

I know this is an older thread, but for what it's worth DynoPort pipes are a WORKS pipe designed to pull throughout the RPM range, the owner Rich Daly is obsessive about performance; I run his pipes on everything I own and swear by them. You won't have to work so hard to stay on the pipe with his chambers, but they are designed for a specific displacement range. So if you want performance details for you application, call him directly; they are still in business but do mostly sled stuff now since the quad industry went to 4-stroke. Krank-It pipes are essentially relabled DynoPort pipes, and are equally good. Scott Carey at Krank-It used to build some incredibly nasty 2-strokes, mainly 250R motors back in the day. My Blaster has a Krank-It motor in it, and it really puts out.

rablack21 · « **Reply #27 on:** November 20, 2014, 01:34:57 PM »

Quote from: etccb;23294

I have never tried one but have read others that have say that they are not equal to the other options listed above. You own it you can test it or go with sure winners TRX5b or TRX9b etc.

Just in case you didn't know, etccb or anyone else for that matter, from now on when you buy a pipe it is already set up as a "b" pipe. Eddie did some testing and concluded that "b" really didn't help or hurt the power on the 310s, but it was a decent improvement for anything about 310cc.