Anybody running a turbo on '12 800cc @ Sea Level?

[aja636]

Yes, there is a difference with the low compression head. I rode Yamyboy's sled when he had the low comp head on it and it kinda sucked in the low end. But, this was high elevation I'm talking about. I'm sure the problem wouldn't be quite as bad at sea level.
As far as max boost on C16, ya I'd bet you could do 12-15 for race days. Obviously, this would be experimental though. I'd bet at that kind of power level you are starting to push the limits of engine components though. 15psi at sealevel is what 20-21psi at high elevation. Not may people are doing that on 2 strokes.
A cool running motor or cool head certainly can't hurt the DET problem.

I know some of the race guys are pushing 14-16lbs on the Crossfire 1200 turbos. That level is putting those engines in the 400hp area. I am not looking for that. 12-13lbs max I would be comfy on a nice cool engine, and the right fuel tune.

Anybody using head studs like we do on the 4 strokes? Is there any problems with blowing O-rings out or lifting the head under mid to high boost levels?
And I might be looking into it a bit much, just want to cover all angles before I build this sled.....The oil Ratio, once your on boost your dumping more fuel into the engine, has anyone seen that it washes some oil(lowers oil ratio) to any point that causes some harm???

I am new to 2 stroke turbos, but have years messing with 4 stroke turbo set ups. Just looking to build a turbo 2 stroke that is reliable as the 4 stroke set ups I have ran. From the looks of some they can be, considering you mountain guys run WOT for 20-30-40 seconds straight, where us flat land guys are lucky to get a 10-11 WOT second run.

 

[P_Ray3040]

my brother and i have 2011 pros with the 2012 silber kits on them and we live in wisconsin and we run 50/50 91 and vp 110 and they run awesome at low elevation

 

[RKT]

I'm running a boondocker racegaskit at sealevel on straight pumpgas.. Running 10psi of boost but with a RKTek turbohead for sealevel.. Better throttle response, much boost and very good torque..
The clutching that came with the BD is almost spot on to run 8-9 psi of boost..

The "Turbo Specific" head we offer has been designed through many years of turbo head testing.

It is NOT a super low compression head but rather a chamber design that allows for extreme pressures without detonation.. Sure you can still have detonation but with this design it is held off MUCH better than the stock head or other low compression heads.. Again, it is a design that has been tried and proven for almost a decade...
KON, you should recognize the name Morten Rushfeldt (European Champion, from Norway..) His championship sled runs this same design from RK Tek..

In short, with this design, there is no added throttle lag so response, as you mentioned, is very good, and higher boost pressure can be ran without issues... Usually one can run 2-3 PSI more boost with this head over a stock head that has been lowered in compression.. Works very good..

Hope this clears up a few things..

 

[PUSH TURBO]

PUSH TURBO 8-10 psi SEA LEVEL

NO ENGINE MODS!!!!!! 8-10 psi 91 pump gass.

 

[OutWest]

NO ENGINE MODS!!!!!! 8-10 psi 91 pump gass.

Hi Push, when are you updating your website so people can get info about that turbo kit for the polaris? I have sendt email, but i guess you guys are busy.

 

[PUSH TURBO]

PUSH TURBO

Last night ist up and running.

 

[m1kflyingtiger]

NO ENGINE MODS!!!!!! 8-10 psi 91 pump gass.

What elevation?

 

[Mark's RMK]

Turbo - Sea Level

Look at the latest issue of SnoTech and see what you think of the turbo system highlighted by the magazine.

 

[Vi-PEC Powersports]

What elevation?

sea level

 

[die hard poo]

Wow Push, your turbo kit looks very interesting! I really like the tial housing/waste gate system along with how you incorporated the oil tank into the turbo mounting. So with your TBBT system, are you having any type of issues with compressor surging by not having an open suction for the compressor when the throttle is closed? IMO for the price, that is going to be a hard system to beat with the Vi-pec! Thanks for all the great pics and info on your system. When will it be available?

 

[Rms Rydning]

What system, what boost levels? Pump Gas? Any issues, how is reliability? Are they finicky/inconsistent? What fuel system? I would like pump gas 8-10lbs if possible. Remember key words Sea Level, any guys have some real world run time? Email or PM me. shaynee@natchoice.net

Thanks Shayne

I have a M8 BD racegaskit with low comp+ a LOT of other mods that runs long pulls with 13,5 psi on pumpgas @ sealevel-3000ft
Our racegas here in Norway is extreamly expensive..
Normaly we run 2 stroke turbo with low comp head at 10-12psi with very good result. But they need a lot of fuel for cooling the pistons..