Nytro motor limits with stock compression

[julio]

2554

my experience with a little turbo like 2554 at 16 you need good fuel to compensate for the heat it builds..(i dont run at sea level tho) julio

 

[Wheel House Motorsports]

mindount, TiAl 3071 divorced downpipes. that could be why it snapped it! thats a lot of power at low boost. also tried a little trick with the extra injector and the IC wouldnt even barely melt snow after a long pull. scary is the only word for it and i have gotten to ride some fast sleds. the words of the owner (he weights 285, so makes it work!) are the sled was "violent"

 

[08nytromtxa]

I have run all Winter With 19,5 psi With my nytro mcx turbo with headshim and low comp pistions..
50/50 pumpfuel and avgas.

yeah not stock motor and not pump fuel and was that at sea level? We dont need people to come on here that dont know much about turbos and motors thinking they can run 16# on pump fuel at sea level with a stock motor, standalone or not.

 

[tjc]

so this sled runs 16lbs at sea level no head shim stock compression, no meth, stock timing . just your tune, so low 20s for boost at elevation. is it your turbo set up? that thing should be a beast.. julio

Its not gonna be stock timing, this is a standalone this is not a dobek box. It probably measures knock too. I would assume fueling and timing is based on a number of parameters (temps, throttle, elevation).

I have never seen one but I am interested. There is some good stuff coming out, much more advanced. Not just this stuff but for all manufacturers. I was reading on dootalk with a standalone they ran near 15 PSI on pump gas on the 1200 stock compression.

 

[M5-]

mindount, TiAl 3071 divorced downpipes. that could be why it snapped it! thats a lot of power at low boost. also tried a little trick with the extra injector and the IC wouldnt even barely melt snow after a long pull. scary is the only word for it and i have gotten to ride some fast sleds. the words of the owner (he weights 285, so makes it work!) are the sled was "violent"

Bingo. That's a good sized turbo with a really efficient housing so a lot of air at 11.5 lbs from that turbo. If you do the math its probably volumetrically equal to a 19T or 2554 at closer to 17 lbs. Snap. Forget about the lbs concentrate on the math.

M5

 

[BigFish BC]

you can pull unlimited timing with the stand alone so running 16lbs at sealevel is not a big deal. you wont make a ton more power because you have to pull so much timing.

 

[Vi-PEC Powersports]

yeah not stock motor and not pump fuel and was that at sea level? We dont need people to come on here that dont know much about turbos and motors thinking they can run 16# on pump fuel at sea level with a stock motor, standalone or not.

if you think we don't know much about turbos and motors, you are wrong, that<s what we do for a living. Beside that, i specificaly stated we were using our standalone in this configuration. Just for your reference too, at 9000 feet with a good fpr 1:1 riser you can run 20 psi on pump gas 91( no absolute pressure, the pressure you are refering too).

 

[julio]

not saying you dont

im not saying you dont know what your doing , just what your claiming is way beyond current norms, so you should expect some nay saying..

beyond that if i could pull that kinda boost on pump with an untouched motor i am interested.. julio

 

[Matte Murder]

So I have a MCXpress 270 kit. I don't know any details beyond that. Unload at 3000. Gauge says about 15lbs. Is that correct. Previous owner said he ran 14-15 or 17-18 if he needed it. Does that all sound correct? Does that kit come with a head shim? Thanks.

 

[YAMA S]

You'll see 14/15 below 5,000ft and up to 18 @ 10,000ft. The MCX box controls all that unless you take the automatic controller off and run it manually. With the 270 kit you have a head shim, 100% on that

 

[Matte Murder]

I have a manual controller. So if I end up riding lower I need to back off the boost?

 

[M5-]

I have a manual controller. So if I end up riding lower I need to back off the boost?

Short answer, Yes.

M5