Dyno Port Pipe???

[edavis0202]

I was wondering if anyone has run a Dyno Port Y-pipe and Pipe setup before.

They clam no fuel controller is needed because of the low compression ratio on a stock sled and how rich they run from the factory.

Also said I should be fine with me 12.5 PAR Head I plan on running.

Curious to see if anyone has any experience with these?

 

[HammsRMK]

I had it on my 2010 D8 nothing great. I really didnt notice any hp and i ran the same weights as a stock sled thought it would have had more power but not so much.

 

[edavis0202]

Thanks for responding.

Did you have the full setup or just the pipe? Pipe itself may not be a huge difference, but add Y-pipe and it could be noticable. I say that because on my m1000 it was the same way.

Also talking to some builders, that the stock pipe itself isnt a bad design and you're better off just doing a port job and making more HP.

If you want to lose a few pounds and "bling" factor then I guess its up to your wallet on what you want to spend.

Im a fan of being at the top first and looking good from a distance

 

[geo]

You have to respect someone that has been in the biz as long as Dynoport.

You also have to think about history and why you see more of one or two brands at elevation and more of other brands at sea level. A pipe designed at elevation usually works at elevation and the opposite is true.
For the same reason you need-benefit from higher compression at 6000' you need a pipe that holds it heat and pressure up there too. Without adding rpm you will lose HP as you lose air density unless the pipe is designed to help.

IMO someone at 10,000' needs a completely different pipe than someone at sealevel (to get a significant improvement). Some people say shift at 7950 some say 8300. With the same pipe, both might be correct depending on elevation because of the pipe design.
Most mountain riders will benefit more from a bolt in the exhaust outlet of the stock pipe (to create a restriction) over a pipe that is safe to keep pinned across a lake at 1000' for 7min.

It's amazing to think of the almost free hp manufacturers have to leave on the table with design, to make a product work from 0 to 12,000'. Compression, ignition timing, exhaust valve timing, exhaust restriction, even sparkplug heat range can make a very noticable difference for your riding style and elevation.

 

[edavis0202]

I agree completely, the basic idea of any aftermarket pipe is gaining more horsepower for everyone.

Speaking of different elevations and pipes, I was talking to Fast Traxx and they said SLP pipe will do more for you up high then Dyno Port.

Also said no need for fuel controller on either pipe with stock head or even the 12.5 PAR I plan on running, said the only time he would suggest a fuel controller would be a complete port job.

That tells you how rich it comes from the factory and from post on here SLP maps are a bit on the richer side also.

All in all I think either pipe would do great things for the engine. I just hope to see for myself next year.

 

[HammsRMK]

Stock y pipe i and the pipe and can was like that when i got it. Not sure if that helps but wasnt bad sound i liked that part!

 

[rcditchpickle]

I ran the pipe last year with a power commander five and PA Head 13.5 at 5000 feet.
Added 3 grams of weight and felt a good power gain. As far as running without a fuel controller you might want to get a air fuel guage and know how it works. I did add fuel but it was not a bunch. All the maps that I could find were way fat. I also ran with a SLP Pipe last year. Both sleds were the same 2012 with the same track and both ran good or better then stock. Clutching the combo to your snow and your riding style will take time but will also get you some gain. Good Luck