Turbo wear, is this normal?

[boske]

These pics are a HX35 pulled from a running dodge. My plan is to run it on my ka-t for at least a few months before rebuilding it myself. It will be run under 8 psi, but I don't plan on running a bov. There is no in/out shaft play but there is a little side to side play. Its hard to tell at first because it takes some effort to move it side to side, its not sloppy feeling. It does spin freely. The pics show some nicks in the housing, but it doesn't seem to be rubbing because the black stuff is grease that wipes off easily, its mostly untouched. I did try to turn it and force it to rub before I took it apart. I don't see any wear on the fins. Should this turbo be good for a while? Maybe the nicks are from something sucked through the turbo? I really have no idea.

http://img216.imageshack.us/img216/1310/scratcheskz4.th.jpg (http://img216.imageshack.us/img216/1310/scratcheskz4.jpg)

http://img20.imageshack.us/img20/4858/bladesfc6.th.jpg (http://img20.imageshack.us/img20/4858/bladesfc6.jpg)

Also, I guess I can just remove the pin that prevents me from spinning the housing to where I need it?

[frosti108]

badass turbo!! i would just run it and see what happens. the oil residue shit is probly just from the trucks stock crank case breather and what not going to the intake. it looks fine to me.
where in pa are you??

oh and why no BOV??? thats not the greatest idea. what do you think happens when you let off the gas??? all of that air is going to push its way back through the turbo the wrong way COMPRESSOR SURGE!!!!!!! not good

[kornaz]

No BOV is just going to kill the turbo. The turbo itself looks fine to me. I have a T3 with some shaft play,and there are marks on the housing (very minor). Yours do not have it, so it should be fine for now. Put that bad boy on right now! :D

[boske]

I actually decided not to run a bov from searching about it on here. Not everyone likes the idea, but a lot of guys are running some really high boost without one. I won't see over 8 psi, and there are turbo cars that never had a bov from the factory so I don't think it will be an issue for me. Plus I love that sound :)

frosti, I'm in Ephrata

[frosti108]

dude epghrata isnt too far from where i am. i went to that huge ephrata sonic meet.

your on pa-nissans right?

and umm, i would definatly run a BOV. it will make your turbo last longer. and trust me everytime you let off the gas, your gonna hear nasty compressor surge. it will get old, and your turbo will hate you

[SoSideways]

I don't think Holset turbos are meant to be run at a low pressure like 8psi.

They were designed to run like 30psi man.

Then again, IIRC, a guy put an HX35 on his KA and put down like over 500hp to the wheels at 30psi.

[drifter808]

i dont know how they handle with low boost, but with high boost they are insane. My brother in law was running 40psi and upgraded to bigger turbo and now pushes 50psi on his 12 valve dodge. No BOV for like 2 years now. they hold up fine.

[SoSideways]

i dont know how they handle with low boost, but with high boost they are insane. My brother in law was running 40psi and upgraded to bigger turbo and now pushes 50psi on his 12 valve dodge. No BOV for like 2 years now. they hold up fine.

Um...

Diesels don't need BOVs... just so you know...

[pr0tus]

Running too little boost will be a problem? I figured getting a Tial wastegate for my jgs manifold would work. The factory WG is 18psi so its gone for sure. I'm not exactly sure what my boost will be, I will tune it to max out my factory MAF or sr injectors which ever comes first. I didn't want this to be a bov vs no bov thread, theres plenty of those already.

[SoSideways]

Running too little boost will be a problem? I figured getting a Tial wastegate for my jgs manifold would work. The factory WG is 18psi so its gone for sure. I'm not exactly sure what my boost will be, I will tune it to max out my factory MAF or sr injectors which ever comes first. I didn't want this to be a bov vs no bov thread, theres plenty of those already.

Have you heard of the stall line? Where the turbo actually experiences compressor surge from the lack of pressure pushing it?

If your turbo is not matched to a motor that's going to run the turbo in the specific pressure that it was designed for, then you'll need to look at getting a different turbo.

That's why you don't hear of guys running T66 and running like 7psi and making 230hp, because they weren't meant to do that, and will more than likely stall and surge.

Seems to me like you have a lot of turbo compressor map reading/learning to do....

[blueshark123]

Running too little boost will be a problem? I figured getting a Tial wastegate for my jgs manifold would work. The factory WG is 18psi so its gone for sure. I'm not exactly sure what my boost will be, I will tune it to max out my factory MAF or sr injectors which ever comes first. I didn't want this to be a bov vs no bov thread, theres plenty of those already.

why dont u just get a smaller turbo if ur lookin for a low hp setup and then u spool will also be alot better

[burnsauto]

aren't diesel turbo's designed to run at lower temps, and hence why you shouldn't use them?

as far as that turbo you have pictured...the compressor wheel is fucked. don't even waste your time with that turbo. don't be another ka-t that pieced together with bullshit parts.

[ILoveMyRHS13]

frosti, I'm in Ephrata
Dude, no fuckin way! I'm in Denver right near the Cocalico high school. What do you drive, where do you hang, etc?

[boske]

Have you heard of the stall line? Where the turbo actually experiences compressor surge from the lack of pressure pushing it?

If your turbo is not matched to a motor that's going to run the turbo in the specific pressure that it was designed for, then you'll need to look at getting a different turbo.

That's why you don't hear of guys running T66 and running like 7psi and making 230hp, because they weren't meant to do that, and will more than likely stall and surge.

Seems to me like you have a lot of turbo compressor map reading/learning to do....

I have no idea what your talking about, neither does google: No results found for "turbo stall line". The turbo should get all the pressure it needs until my wastegate opens and holds that boost, its not like this turbo is so large my motor will not be able to spool it.

The main disadvantage I have heard is a higher rpm spool by running a larger turbo. I have been considering the bullseye power smaller exhaust housing for a faster spool, but I will wait on that for now. From the hx35 setups I have read about, I think other factors are changing every ones results, good or bad, so I will wait to see what my JGS manifold does for me, it should help out over a tubular manifold. As for the rest of what you said, I really have no idea. Can someone explain why running a low psi wastegate is bad if your turbo can run high pressures? I know its not the best turbo for the job all in all, but it will allow a lot of upgrading if I build my KA.

[boske]

aren't diesel turbo's designed to run at lower temps, and hence why you shouldn't use them?

as far as that turbo you have pictured...the compressor wheel is fucked. don't even waste your time with that turbo. don't be another ka-t that pieced together with bullshit parts.


:rofl:




length...

[boske]

Dude, no fuckin way! I'm in Denver right near the Cocalico high school. What do you drive, where do you hang, etc?

I'm usually hanging out in my garage, or a buddy's garage. My car is never on the road so I always drive a POS explorer around, you may have seen my white s13 hatch around the area a year ago. Do you drive a rhd s13 around denver? I rarely see modified 240s around here.

[Forge_55b]

the turbo most likely will be fine BUT you probably won't know 100% unless you run it, which could run the risk of the blade getting a small chunk shattered off and going into the engine, not likely but possible

and on the HX35, they use them on dsm's and stuff according to the link, and are roughly close to a T3 when you compare to a garrett turbo from what i've read, also no bov with only 8 psi isn't going to do anything, just make the fluttering but thats not your question so who really cares

Garrett and Holset Turbos (http://www.dentsport.com/2006/01/22/garrett-and-holset-turbos/)

[SoSideways]

TurboByGarrett.com - Tech Center (http://www.turbobygarrett.com/turbobygarrett/tech_center/tech_center.html)

Read up.

[turbo_dreams]

Do it right the first time, you'll be kicking yourself if your blowing smoke once its on the car, since you'll once again have to take it off.

[ILoveMyRHS13]

I'm usually hanging out in my garage, or a buddy's garage. My car is never on the road so I always drive a POS explorer around, you may have seen my white s13 hatch around the area a year ago. Do you drive a rhd s13 around denver? I rarely see modified 240s around here.
Nah, I drive a beat auto red hatch with two messed up quarter panels and an exhaust. Happen to hang out in your buddie's garage that owns a white RX7 FC? If not them, Kyle Ulrich's house?

[Automato]

Nah, I drive a beat auto red hatch with two messed up quarter panels and an exhaust. Happen to hang out in your buddie's garage that owns a white RX7 FC? If not them, Kyle Ulrich's house?

this guy with a white rx7 fc happen to be a jeff? haha, kind of funny that you guys all come out of the woodworks. this is all off topic, but i grew up in lancaster, pa. i drive through ephrata and denver all the time. you guys might have seen me driving through there with my black sileighty. in fact, i will be back next weekend.

for your turbo, why not just running a t25 or something until you are ready to upgrade? if your manifold is for a t3, just get an adapter plate for now. actually my roommate has one.

[boske]

Everyone I know drives around lame-ass minitrucks :) I can't talk shit because I have been driving/working on one for six years I guess. I have heard about your smashed up red hatch driving around, too many trees around here right? :) I'm pretty sure I have seen the black sileighty on my way to work on 272. You guys are like the only 240s around, there might be a couple in denver.

[boske]

Do it right the first time, you'll be kicking yourself if your blowing smoke once its on the car, since you'll once again have to take it off.

It shouldn't be hard to pull it off my top mount manifold, but I'm thinking I might just rebuild it. The holset rebuild kit is like 50 bucks, and its only 15 pieces it should be easy as hell.

[kornaz]

Do a rebuild and forget about it. It's not hard at all. I am in process of doing one right now.