What will doing a after market Y pipe do?

[ARMYSLEDER]

So I was talking with one my buddys and said I will lose some the bottom end if I do a whole pipe kit and I think thats debatable but my thing is I dont want to really mess with jets and clutching mutch on my new XP I am not worried about top speed because I already regeared it down so my question is what will doing a Y pipe do? If I got a ceramic coated Y pipe with stock pipe and my precision can will I lose power or gain with that set up? I want more power but dont wanna have to fiddle much with the sled. I remembered when I piped my tripple MM700 it was a nightmare getting jets and clutching dialed and it was spendy.

 

[Chazmanian]

I reasearched this very subject and came to the conclusion that the stock pipe works to well to justify the change....Trygstad tested a slew of pipe combos and essentially says:

*We do not offer any aftermarket Y-pipes, single exhaust pipes, silencer cans for 800R models, no gains were found in our testing of any products available.http://trygstad-motorsports.com/Products.html

That being said Big John over at Sled Head racing didnt even recommend a pipe for me when I called him and told him I wanted to do some bolt on mods this year for my 09' XP....Instead he suggested a compression bump to give me a lil' more snap at our high elevation and a can simply to drop 10-15 pounds. He also suggested and sold me a 20T gear in place of the 21 and said the clutching is key on these sleds.

I went with all of Big Johns suggestions and left my stock pipe in place.

I'm hoping to run across someone this season with the dynoport, pipe and can setup to do some comparo action. I've been led to believe if one were to doo a pipe setup this would be the one!

 

[ledoo]

Y pipe + 2-3 hp according to dynotech
dynoport Y and pipe combo another couple according to dynotech.
according to dynoport no jetting required.
pipe 3 lbs 8 oz less than stock. according to my digital fish scale.

 

[Snoclo]

SLP Y-Pipe/Pipe = Less weight!, more HP!
HPS can = Less weight!, more hp?
Jetting - 470
Clutching - Rooster Built
Set it & forget it

 

[Insaneboltrounder/sjohns]

Most say it adds a lil hp but I also liked that it dynod a wider powerband. sj

 

[mynewuseddoo]

I would stear clear of dynoport for the fact that they state that no jetting changes are needed. If your flow through the engine increases then you need more fuel to add to the extra air volume being drawn through motor. If no jetting is needed then this leads me to believe that no efficiency has been obtained. Look at the dynoport beside the doo pipe, they are basically the same pipe. If you want performance then be prepared to tinker a bit. Doo your clutches and gears first, they will make a much bigger difference than a y-pipe. It might not sound as cool or look as flashy but the performance left to be gained from your clutches is emense. I am also currious why you feel that dynoport is the best setup. I am not saying that it is a bad product by any means as it can be tuned depending on elevation but I want to know why you feel it is the best for you.

 

[Chazmanian]

Y pipe + 2-3 hp according to dynotech
dynoport Y and pipe combo another couple according to dynotech.
according to dynoport no jetting required.
pipe 3 lbs 8 oz less than stock. according to my digital fish scale.

The issue that I see with the Dynoport HP qoute scenarios is this...

2-3 Y pipe.
5 HP Pipe.
2.5 Head.


Thats what 10HP on top of the 155 they dyno a stock 800R at?

Well that makes 165?

Big Johns big bore kits make what 171? 175?

I dont buy the piping math.... Plus in 2 stroke pipe world you gotta give a lil' to get a lil right? So where would you be giving by going aftermarket? Low end?

Billion dollar company trying to make max power and spending mucho R&D money on the stock pipe to get there Vs ???

Maybe I'm way wrong?

 

[portgrinder]

I would stear clear of dynoport for the fact that they state that no jetting changes are needed. If your flow through the engine increases then you need more fuel to add to the extra air volume being drawn through motor. If no jetting is needed then this leads me to believe that no efficiency has been obtained.

Sorry but you are wrong. you are thinking like EFI. Carbs automatically compensate. The more air you flow, the more fuel they suck up from the float bowl.

Lots of good mods increase the efficiency of the motor (ie burn more of the available fuel sucked in) so you actually jet down.

Dynoport Y pipe was worth 1.5 or so on my 860

 

[badass1000]

my xp with slp pipe and head ran WAYYYY better then a stocker. Mostly mid range and throttle responce with some top end. Several have bought the slp pipe and head combo after riding my xp or seeing it run.
buy the slp pipe and head combo or ride some ones that has it. Then post up how you like it. I have seen quite a few post up that they like it. Can't remember a single one that didn't like it.
Most just post up what some one else said instead of their own experiance.

 

[mynewuseddoo]

I agree as I have dusted many dynoport setups with my SLP set up and my own jetting and shimming.........fact. And I can also say my jetting didn't go down, more air more fuel. If I want stock stock pipe with some flash then dynoport.....for the mountains that is. I think dynoport for low elevations is fine.

 

[mynewuseddoo]

And I also own the dynoport y-pipe and pipe. I will put this set up back on my sled when I doo a turbo. My SLP pulls much much harder, I tried the whole jetting down thing and when I went to the SLP pipe the first thing I noticed was that they state to jet up. The SLP has a much larger suction horn than the dynoport drawing more volume through the cylnder and is able to reflect a much larger volume back into the cylnder which is especialy important up high. Down low where the atmosphere is nice and dense I can see the dynoport working good and this is why I will use the pipe again in a turbo set up as it is very very very similar to the stock doo pipe. Last year I kissed a tree and decided to go aftermarket pipe and so I hit the forums to "see what was the best". With all the chatter about different products I decided to go one way and I now realize for the elevation I ride that that was a mistake. So another $800 and a new exhaust and some jetting time I had a superior system to my previous aftermarket adventure.

In everybodies opinion they have the best set up and that's fine but I have both systems and I'm not trying to blow smoke but the SLP slays the dynoport.

Just one guys opinion and experience. Now let the "you didn't jet it correctly" comments fly!! LOL!!

 

[dicey]

A guy i ride with went with the complete SLP setup and yes he jetted up ,his fuel economy wasn't as good,but it was a noticeable power increase probably close to 10hp .

 

[Chazmanian]

my xp with slp pipe and head ran WAYYYY better then a stocker. Mostly mid range and throttle responce with some top end. Several have bought the slp pipe and head combo after riding my xp or seeing it run.
.

I wonder how that same setup would perform with the stock pipe?

I find it hard to discount a credible source like Trygstad or to think that a bolt on pipe and can combo is gonna make within 5HP of an SHR 860R motor when all the testing they have done show no realistic useable gains?

Then again I'm a skeptic!!!'

I did just a head and can and stuck with the stock pipe.....Maybe I left 2-3 HP on the cutting room floor? Just Dunno. I'm gonna run mine as a simple 800 with a head and a can this year and then go with an SHR 860 next year. If BJ at SHR and his dyno or *** dyno claims the thing will rip harder and be a stronger faster sled with an aftermarket pipe I'll get me one too!

 

[badass1000]

slp has 3 dynos and has worn several out. Their dyno is at 5,700' elevation I believe they said.
I know several that have ran stock jetting with the slp pipe and head combo. Stock is fat anyways. I went up one jet size to 490's. That is with non ethanol fuel.
I just know it works. looks like several others have had the same experiance.
You have to have a lower compression head with the slp pipe and y pipe then those high compression heads and stock pipes. They said their pipe is alot bigger diameter and flows alot more air then a stock pipe so the runing compression is higher. Their head for 6-8,000' is only 13.2 I believe. They called for 13.7 on the 07 800r with just their Y pipe and stock pipe at 6-8,000'.
besides their head price is pretty good compared to most and so is the y pipe, pipe, and can combo.

 

[Chazmanian]

I'm thinking of dropping the $25.00 on a Dynotech membership to do some studying!

 

[mynewuseddoo]

My 3000-6000ft SLP head is only 12.8

 

[CBX]

A guy i ride with went with the complete SLP setup and yes he jetted up ,his fuel economy wasn't as good,but it was a noticeable power increase probably close to 10hp .

Any time you have to jet up its either the scavenging effect of the pipe reduce signal to the carb, Or it needs more fuel to heat it due to sizeing or mass. Most pipes are very thin. And dont have shields. Which makes it harder to keep them hot. Plus only the outsides are coated. Which does diddle for heat retention.

Just a different way of making power. Some guys do it in the motor, others do it in the pipe.

For the guys who want a pure bolt on setup, the SLP kit is a great option. But for the money, there are better setups out there if your willing to have your cylinders cut.

 

[bungeeguy]

I wonder how that same setup would perform with the stock pipe?

I find it hard to discount a credible source like Trygstad or to think that a bolt on pipe and can combo is gonna make within 5HP of an SHR 860R motor when all the testing they have done show no realistic useable gains?

Then again I'm a skeptic!!!'

I did just a head and can and stuck with the stock pipe.....Maybe I left 2-3 HP on the cutting room floor? Just Dunno. I'm gonna run mine as a simple 800 with a head and a can this year and then go with an SHR 860 next year. If BJ at SHR and his dyno or *** dyno claims the thing will rip harder and be a stronger faster sled with an aftermarket pipe I'll get me one too!

I know that the SLP head is made to work with their pipe setup and should give you the most HP for bolt ons.
I rode a XP with the SLP head and pipe combo last year back to back with my stock XP. Bought the setup this year, the mid and low end hit is much better with the SLP setup.

 

[SWEETXPBEATCH]

absolutely nothing!

I wouldn't waste your money.
Dyno's show nothing to nominal gains.
For that kind of many, hit up DJ and get a clutch kit

 

[badass1000]

I wouldn't waste your money.
Dyno's show nothing to nominal gains.
For that kind of many, hit up DJ and get a clutch kit

You dynoed a xp with the slp pipe and head at elevation? What elevation? What did the stocker dyno and what did the xp with slp pipe and head make? Most importantly what were the mid range gains?
Have you ridden a xp with the slp pipe and head combo?