Ulmer Racing 2010-2011 FX Nytro Turbo Kits

[srxspec]

Ulmer Racing has been diligently working towards the 2010-2011 snow season. We have made some upgrades this season to the first question we always receive about our turbo kits, which is "where does the heat go?".

During the summer it is almost always better to email us than it is to call. We are constantly testing new items on our track dyno as well as getting a CNC machine setup, so we are not always available to answer the phone nor do we hear the phone when either setup is going.

We do have a new digital voicemail setup. This switch over in service did cause us to lose several messages from our old answering machine. Starting this week we will trying to return phone calls on Tuesdays or Wednesdays. Emails we will return as soon as we can after receiving them.

For those who have our last seasons mid mount turbo kit and want to upgrade to the new turbo, down pipe, and manifold blanket, please email us. I do have several who are wanting to upgrade already, we are just waiting to receive the new blankets. We also have Stage 8 fastener kits in stock as well for last seasons customers.

Email: Srxspec@Gwtc.net
Phone: 605-387-2833
Fax: 605-387-2883

 

[philsummers21]

what kind of boost can the stage 3 kit be run at 8000+ elevation

 

[srxspec]

what kind of boost can the stage 3 kit be run at 8000+ elevation

On stock connecting rods I wouldn't recommend over 14-15 lbs. Aftermarket rods then it will go up to 20 lbs @ 10,000 foot and that is about the max it can make. So 8,000 foot around 21 lbs before it is out of it's efficiency range. Obviously fuel quality required changes with changes in altitude.

 

[motojunkie101]

I thought that the SW "rule of thumb" was that you can run 17lbs pretty safely on stock rods and when you go 18+ you are rolling the dice without upgrades. I might be wrong on that, so anyone out there please correct me if I am. The reason I say that is the impulse kit runs 17lbs of boost with a headshim. Perhaps the lower compression doesn't beat up the bottom end as much??

That being said...I ran my boondocker at 15lbs on 110 to be on the safe side.

/unthreadjack

From what I can see, as long as the fuel controller will support the higher boost and you have good fuel you could probably run more than the 10lbs than they advertise, although I do not see a boost controller in their parts list. Even so, 10lbs of boost got me everywhere i wanted last year, my skis just weren't as high in the air. haha.

 

[srxspec]

I thought that the SW "rule of thumb" was that you can run 17lbs pretty safely on stock rods and when you go 18+ you are rolling the dice without upgrades. I might be wrong on that, so anyone out there please correct me if I am. The reason I say that is the impulse kit runs 17lbs of boost with a headshim. Perhaps the lower compression doesn't beat up the bottom end as much??

That being said...I ran my boondocker at 15lbs on 110 to be on the safe side.

/unthreadjack

From what I can see, as long as the fuel controller will support the higher boost and you have good fuel you could probably run more than the 10lbs than they advertise, although I do not see a boost controller in their parts list. Even so, 10lbs of boost got me everywhere i wanted last year, my skis just weren't as high in the air. haha.

The end user can run it at whatever boost level they truely like. I just recommend around 15 lbs as a max on stock internals, just my/our humble opinion. You can easily add a boost controller and crank up the boost, just need the octane to match the boost you desire to run.

 

[wilbilly]

boost

as motojunkie said careful with the boost on this engine . 15 psi on stock parts is no problem with 100% 110 sunoco we built a titanium nytro last year we installed rods, piston etc. at 21to 22 psi it cracked the pistons and lifted the head . iam building mine as we speak iam installing crower rods, stock pistons, arp head studs , and double stacking the head gaskets . should be good up to 18psi @ 7000ft. with 100% 110 fuel if anyone has anything to add please feel free to iam all ears

 

[Polarisrocks]

Nice to see someone stepping up with a lifetime warranty headers!!!

 

[srxspec]

as motojunkie said careful with the boost on this engine . 15 psi on stock parts is no problem with 100% 110 sunoco we built a titanium nytro last year we installed rods, piston etc. at 21to 22 psi it cracked the pistons and lifted the head . iam building mine as we speak iam installing crower rods, stock pistons, arp head studs , and double stacking the head gaskets . should be good up to 18psi @ 7000ft. with 100% 110 fuel if anyone has anything to add please feel free to iam all ears

Cracked pistons & lifted head = detonation. Either not enough octane to support the boost you were running or improper air/fuel ratios. Timing control can also come into play as well.

 

[wilbilly]

boost

after the failure of that engine je came out with a stronger piston but from what i have heard the head gasket is a weak spot but has been resolved with arp studs .as far as fuel we run stright 110 at 7000 /9000 foot i would think that should support 20psi boost with a a/f from 11.5 to 12.5 my hat is off to srxspec it looks like a good kit at a fair price

 

[motojunkie101]

I would be careful with your A/F gauge. Mine was reading 12.5 and still running WAY too lean. After that I have a hard time trusting it.

What did the plugs look like when you pulled it apart?