Engine/Transmission (1994 - 1998) How much boost can a HX-35 handle.....

[onestackdram]

with a 16* cfm ex. housing? I ask this question because I finally decided today to slide the stock plate foward. And with nothing else done to it except 4" downpipe to dual 4" stacks (not like you could see my sig. ) There arent any neat inj in there just stock and a K&N filter in stock box. I NAILED 38 lbs not once but everytime I tried it. I can it that in 4th alone and in 5th I can bounce it off 40. The ex. housing is Non-Wastegated, so I am going to assume that has something to do with it. I am also assuming that this if anything is really pushing the turbo quite a bit so i have decided to stay out of it on the hotrodding until I either know other wise or can swap it out.



Russell

 

[Whitmore]

Russel,



I failed my oem hx35 with 12 cm housing at 36-38 psi after 1 year, autopsy results were bearing failure on the compressor side, the exhaust side didnt look to good either.



Cheers, Kevin

 

[WadePatton]

watch out.

Mine (OEM)went to 43psi a few times before I learned not to. Now I am adjusted to hit 36# max at 5x5 uphill. Usually 32-34 at other settings. I may back off another 1/2 turn on the gate.



I don't think the housing size matters when it comes to "overpumping" a 35. They're overheating the air when you run them over 35 or so PSI.

 

[onestackdram]

is having a non-wastegated turbo hurting or helping me being stock, keeping in mind that I AM going add a plate and injectors as soon as I get my hands on my H1E.



Russell

 

[Jff24Gordn]

Well, you could be lucky and get it to really push some air. Ive hit 50# and above 40 all the time for the last 3 years, and the bearings are still tight. Yes, I know the intake air is almost as hot as the exhaust, but it has more power like that than if i hook up the wastegate. I have herd from a little devil on my shoulder that they have survived 80+ psi. I'm surprised the boots didnt melt.

 

[onestackdram]

so with daily driving and holding off on the hotrodding for the most part i should be ok until i get a new turbo?



Russell

 

[vssman]

My stock 35/12 is set to 38. I can see about 42 on very rear occations. Jannetty had me set it that way and I have had no problems at all. EGT's stay in control too.

 

[C. Harlan]

I took mine to 50 one time, and grenaded it at 49 PSI..... Almost 1 year ago! autopsy was a failed compressor side shaft, which is somewhere on Loop FM 1604, San Antonio TX. . I would not take it over about 30-35 PSI... that is the max for the little turbo!



-Chris-

 

[vssman]

I believe Marine versions run our turbo at 37psi. Making it bark is worse than running at pressures under 40 psi. Above that, your on your own.

 

[Deezul1]

Mine sees 40 fairly often and has been for 2 years. If I could figure a way to back it off to 30-35 or so I would but its a non waste gated 16cm housing.