Nytro o2 reading

[Madprofesor]

09 nytro mtx. Push turbo. Running 8# boost. Was told to be at 12 to 13 on wideband gague reading. Wondering if that is right or not. Also clutching and gearing needs to be changed a bit. Seems to pull Down like stock in long climes. Oh and is there anybody that has a fix to the push turbo intake that will keep it from icing up in deep pow on warmer days.

 

[Iceman56]

Nytros seem to like fuel so at WOT I think you should be in the high 11's or low 12's... On a long pull that your loosing rpm make sure you are not dropping boost as well, if you are you have an exhaust or boost leak.

 

[Tuesday]

I agree, they like lots of fuel. Check for exhaust and boost leaks. Snorkels work great to avoid icing up. They look funny on the trail but in the deep snow its the only way to go.

 

[BigFish BC]

11.5 to 12.5 is where you want to be if you are at 13 that could be the loss of power on a long climb too.the icing on your filter is caused by the heat from the muffler, you need a tunnel dump for the muffler.

 

[Madprofesor]

11.5 to 12.5 is where you want to be if you are at 13 that could be the loss of power on a long climb too.the icing on your filter is caused by the heat from the muffler, you need a tunnel dump for the muffler.

It's a push turbo so the exaust is pointed to the front of the tunnel

 

[Madprofesor]

That for info. I gave the stock gearing yet was told to re gear for higher top end is there aneyone that has a gearing that works best Hits rev limiter at about 90 now

 

[Powder Man]

I have the push kit and found the included rivets to be a little heavy for the stock boost settings. Easy fix is to install a manual boost t and turn the boost up to 9-10lbs add a little race gas to be safe. I love the extra power and actually want more and will upgrade this summer. I also run a shockwave helix which really allows for fine tuning for conditions.

 

[BigFish BC]

It's a push turbo so the exaust is pointed to the front of the tunnel

you need a upturn on the intake to get it away from the turbo heat then like the mcx kits run its the heat that causes the icing.

 

[smwizzz]

Yup

I have the push kit and found the included rivets to be a little heavy for the stock boost settings. Easy fix is to install a manual boost t and turn the boost up to 9-10lbs add a little race gas to be safe. I love the extra power and actually want more and will upgrade this summer. I also run a shockwave helix which really allows for fine tuning for conditions.

You hit it right with the Shockwave. You need the primary weights to be right but you can dial it in or add boost on a special day and the Shockwave makes quick changes simple with an allen key. A good investment for the turbo... guy/gal.

 

[freight_train]

exaust

It's a push turbo so the exaust is pointed to the front of the tunnel

curious how that exaust sounds compared to stock loud?

 

[freight_train]

turbo

I have the push kit and found the included rivets to be a little heavy for the stock boost settings. Easy fix is to install a manual boost t and turn the boost up to 9-10lbs add a little race gas to be safe. I love the extra power and actually want more and will upgrade this summer. I also run a shockwave helix which really allows for fine tuning for conditions.

curious if you have any fuel system upgrades to run 10lbs ?also what elevation you run at? also can one just lengthen the actuator rod to adjust the boost or am I wrong? thx Pete

 

[apex jeff]

curious how that exaust sounds compared to stock loud?

Louder,but a nice loud,the turbo itself tends to blend the exhaust pulses.Aftermarket rear exits on S/C nytros are much louder and sharper.


Jeff

 

[Madprofesor]

it runs at 11 to 12 lbs boost at 3100 feet running 100 octane airplane fuel in it. at 10000 feet was running at 8 to 9 lbs of boost on 91 octane.
working on making a cover over the back so the exaust heat cant come out above the tunnel will get pics when i get back from cally

 

[Madprofesor]

if u want to run the push turbo at lower altitudes make a spacer plate for in between the turbo and where the muffler bolts on . i used .250 steel cut out on a plasma table. with the plate instaled (needed longer bolts) it allows the wast gate to open further thus reducing the boost to around 8psi. only downfall is if u dont run a boost controler it will only have 6 to 7 psi at 9000 feet.

 

[apex jeff]

curious if you have any fuel system upgrades to run 10lbs ?also what elevation you run at? also can one just lengthen the actuator rod to adjust the boost or am I wrong? thx Pete

I shortened the rod on mine to go from 8.5psi to 10psi.If you add fuel in mode 3 and 4 the stock system delivers enough fuel.You will need to add weight to the primary or reduce spring rate after going up in boost.The wastegate rod threads are coarse, a half turn tighter gains 1.5 to 2psi.I am turning 8800 to 8900rpm at 6500 to 7200ft.


Jeff

 

[Powder Man]

I run 9-10lbs between 4500-7000ft without problems. I've tried turning up past 10lbs but run out of fuel, this is why I plan on upgrading this summer. Not sure wich route to take as push has an upgrade that adds an extra injector and different fuel map. I'd like to add an intercooler and better fuel pump but I'm not sure this is possible with the push kit.

 

[Madprofesor]

I run 9-10lbs between 4500-7000ft without problems. I've tried turning up past 10lbs but run out of fuel, this is why I plan on upgrading this summer. Not sure wich route to take as push has an upgrade that adds an extra injector and different fuel map. I'd like to add an intercooler and better fuel pump but I'm not sure this is possible with the push kit.

I'm building an intercooler to go with my push kit will be posting picks of the design