Trouble with turbo kit

Nickitos · Mar 18, 2015

Hi guys! In Russia we do not have to much info for turbo's sled's) We install boondocker turbo kit on 2015 800 Pro RMK 163, and right piston broke's(((
So question! If we install this kit, what we must do with compression ratio?
Sorry if this question was on this forum! Language trouble with search))))

RDS88 · Mar 19, 2015

How much boost, and what fuel will you be using?

N.A84 · Mar 19, 2015

And what elevation are you running at?

Nickitos · Mar 20, 2015

boost was 8psi! elevation from 500 to max 2300 meters!
type of fuel 100 oktane! innovate gauge parameters was 14 on idle speed and 11 12 on ride!
This is all on all stock engine without intercooler!

Nickitos · Mar 20, 2015

Why on polaris pro rmk 800 broke engines? MAG cylinder always!! sleds run max 1200km and engine goes out! what about this in USA?

diamonddave · Mar 20, 2015

Post some pics

N.A84 · Mar 20, 2015

Is the head stock? I am going to use 11.5 comp, have been using 10.2 but that is to low unless you are running high psi all the time.

Nickitos · Mar 20, 2015

Engine all stock!! I think that for biggest boos need lower compression ratio!
We love polaris sleds but problems with stock engines is killing us((( We ride side by side with f*cking ski doo, and they all good, but polaris brokes and brokes(((

doudea · Mar 21, 2015

That was a lame post on my part.

Sorry.

Nickitos · Mar 21, 2015

doudea said:
What.... In America Pros rock. You must be doing something stupid........

Im work in Polaris dealer center in my town, and this is really problem!!!
And we dont know how decide this problem! maybe its gas problem all riders use 98 gasoline and ETH mode on dash panel!

markenyux · Mar 21, 2015

i have the same problem here, any suggestion will be great

likkerpig · Mar 21, 2015

So recapped and converted to US units:

8psi on 100 octane
1600ft to 7500ft elevation.

My 2 cents the compression ratio is probably ok. Lots of people running that in the US. The 8psi at 1600ft may be a bit light on the octane. I'm not a boondocker guy so my knowledge is limited. If that was me, I would turn the boost down add av fuel and work your way up carefully on a fresh rebuild. Stick with it, you'll love it when you get it figured out!!

Nickitos · Mar 22, 2015

Gas in Russia is no good quality! we think that problem can be in this!
Any thinks????

doudea · Mar 22, 2015

Nickitos said:
Gas in Russia is no good quality! we think that problem can be in this!
Any thinks????

Poor gas can cause issues, however the detonation sensor should be picking up and cutting the engine out if you are detonating due to poor fuel.

What boost levels are you running at?

Nickitos · Mar 22, 2015

N.A84 · Mar 22, 2015

Have you adjusted the oilpump?

Nickitos · Mar 23, 2015

Yes! 2 turn's!

Nickitos · Mar 23, 2015

And what about pistons???? OEM or anything else??
Wossner's good?

N.A84 · Mar 24, 2015

i would go for oem, their pistons after 2013-2014 is very good. I went for a mtntk (wiseco) look a like fix kit tho, for my old 2011 turbo.

doudea · Mar 24, 2015

Nickitos said:
And what about pistons???? OEM or anything else??
Wossner's good?

I have been running the RKtech rev 1 drop in kit for 2 years with my turbo set-up (Aero-Charger). Which use Wossner Pistons. I have about 1800 miles with this set-up, and haven't had any issues with the pistons. The kit includes a cylinder head that is 120 psi in each cylinder. I have been running 8 to 9 pounds of boost. The Wossner Pistons are top notch in my opinion.

I am skeptical about your issue being a fuel quality issue if your not kicking off the detonation sensor, which should be occurring if you are suffering from poor fuel (Lack of octane for you elevation/ boost level)

Trouble with turbo kit

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