07 X2 800 EFI ???

[rangertom]

No, BC, I've not looked at it closely. That's too bad. I agree with you about a finely-tuned single would out-do the dual they've come up with, but found it hard to take that the dual didn't improve performance, at least a little. I wonder how much power could be gained by putting a nice high-flow system on an 800 one could get. I've never read about any "real" results, merely heresay.

[BearCat]

Remember though, The Polaris EFI system doesn't map exhaust gas temperature. So simply bolting on an after market exhaust may make things worse. If you go with after market exhaust you may find that you will need a programable EFI set-up as well.

I wouldn't let the single or dual stock set-ups sway my decision either way. Like I said if you look at the dual set-up I dont see it being an advantage as the left muffler actually feeds from the right muffler instead of the header pipe itself. Which is where I see restriction starting and only getting worse the further the exhaust has to travel towards the outlet on the left side. Only my opinion.

BC

[MrBill]

What is this EFI you are talknig about?

[BearCat]

LMAO!!! Dont make this any more difficult, I'm tryin' to keep things simple here....Doesn't OldTrucks run an after market EFI set-up with his pipe?...Wait a sec, now I get it...You have one of those old funny jetted thingies on that little 500 of yours!!!!

http://www.powercommander.com/912-411.aspx

http://secure.dobeckperformance.com/sho ... at=Polaris

BC

[MrBill]

Yea I think it is a dubeck or something like that along with a pipe and clutch kit.

[BearCat]

Here ya go...Just found this....

http://www.aaenperformance.com/Power800.asp

BC

[MrBill]

Man look at that torque!

[Ken]

Wow...lots more low end.

Derrick...that's what is known as ROLL POWER, in the rock crawling business.

[rangertom]

BC, I wasn't taking into account having to re-map the injection, got me there. I took a look at the mega pipe. It doesn't include a new header-pipe, and still costs 400+ bucks to gain less than ten percent. This gain is consistent with a normally aspirated system. With the addition of a higher flow header, and the pipe, and I say again, and the intake, and your addition... the re-mapping of the injection system, the clutch would end up needing some work to handle a this much more significant gain.

Did I get it all? Who's done this out there? Anyone got some experience or a link to someone who has?

Whatcha think?

[BearCat]

No need for a clutch RT. I just changed my 05 primary for an 06 primary and belt, big difference. Now that things have broken in abit there is alot more bottom and mid range "pull" in both high and low gear. My 700 with the clutch, a K&N filter with the 800 snorkle (the 800 snorkle has an opening twice the size of the 700) theres plenty of power.

Are you looking at what can be achieved in HP through simply bolting on after-market parts??? A 10% increase on 50~55 stock HP on a utility quad is pretty respectable concidering your just bolting on a pipe. If you really want the pipe to work then some engine work would be needed IE...porting, cam timing. once you start going that far, do you lose reliability?

Take a new 800 polaris add the AAEN pipe a K&N filter and if you want go one step futher and add one of the programmable EFI boxes...I wouldn't be surprized if 60hp could be reached. Plus still have reliability.

BC.

[MrBill]

Timing advance key ways also..
That 06 primary clutch is the way to go!
I don’t know about the K&N because of the oil that gets on the Mass Air Flow meter. Some have trouble and some have no trouble.

[oldtrucks]

Doesn't OldTrucks run an after market EFI set-up with his pipe?...Wait a sec, now I get it...You have one of those old funny jetted thingies on that little 500 of yours!!!

NO NO, my quad is all stock, OK maybe I've tuned it a little. And yep, Bill has something called jets he puts in and takes out. He's got it down to a science, very impressive to watch....almost as impressive as how he can pack 40 gallons of fuel on that 500

Tom exhaust is a science. There still needs to be some back pressure for optimal performance, so two is not always better than one. You're correct that you can't force more air through without finding an exit. The limiting factor is still at the motor, so no matter how much air you force in and how free the exhaust is it still has to pass through the factory throttle body orifice. I've found the same issue on the Suzuki, nothing significant will happen until someone comes out with an aftermarket product to replace the throttle body. You'll only see nominal gains with exhaust and air cleaners.

[Ken]

stock is enough to kill ya.

[rangertom]

Alright fellas... I suppose this entire topic has been purely academic discussion. I hope someone got something out of it other than myself. I'll not be putting a pipe, K&N, maybe that snorkel from the 800, and certainly not a programmable EFI module on the 700. This will be my wife's as soon as the X2 800 lands in my garage in February. My focus will be on making it what I want.

So, gentlemen, I thank you for all your ideas and advice.

On to my next, however old, and new problem! Yeah... it's back again on the 700... Code 45... and this time, a Code 54. Un-#$%(-ing real!

[oldtrucks]

On to my next, however old, and new problem! Yeah... it's back again on the 700... Code 45... and this time, a Code 54. Un-#$%(-ing real!

Must be a Polaris thing