Questions for Justin...

[BlackMount]

well I'm excited to see what it will do on 15-20lbs++ with a mild tune. now that transmission is in order. I'm ready to throw it on.

 

[JusMX141]

I ran the old one.. Did you? I want to know if there was much of a difference. I think i found the turbo for my next build

Robert's claiming the new HTA compressor to be 54 lb/min capable....not sure if this is confirmed in the DSM bolt-on housing yet or if this is based on other platforms. For example, the 68HTA compressor has been proven to 47 lb/min on other platforms, but the TD05H turbine in a 7cm DSM bolt-on turbine housing tends to peak at around 42-44 lb/min....and I can't confirm anyone logging 47 lb/min with the DSM 68HTA yet, although they may be out there.

If the new Green is truly 54 lb/min capable in the DSM bolt-on turbine housing, that would be a substantial gain over the old FP Green....to the tune of around 6 lb/min of peak airflow- or the difference between a Big 16G and 20G.

 

[BoostedBeaver]

Jusmx I stored my turbo on the turbin side and after reading this and asking the question on page two i went out and checked it. The turbin wheel had a little oil on it. When I rebuilt it I used some heavy weight gear oil. My question is did this cause any damage??? Also what size coupler do you need for the compressor outlet. I know the intercooler side is 2.5. I measured the compressor outlet and it was 2.8@#. Just wondering what most people are using. Thanks for the info and hopefully she will be running soon.

 

[BlackMount]

Also what size coupler do you need for the compressor outlet. I know the intercooler side is 2.5. I measured the compressor outlet and it was 2.8@#. Just wondering what most people are using. Thanks for the info and hopefully she will be running soon.

Call me a Ricer, but me and friends always use Home Depot Couplars, They are cheap but good quality, and come in many shapes and sizes, and have yet to see one blow up. I don't know what they are rated for but friend with a HX35 laser has only those on his and he's running 23 psi with no issues. they measure the Diameter different then what our cars are so I bought some 2 inch couplars but they were more like 3 inches because they fit fine on the N\T throttle body so keep this in mind.

 

[BoostedBeaver]

Thanks for the reply. I will keep this in mind.

 

[JusMX141]

Jusmx I stored my turbo on the turbin side and after reading this and asking the question on page two i went out and checked it. The turbin wheel had a little oil on it. When I rebuilt it I used some heavy weight gear oil. My question is did this cause any damage???

Doubtful.

Also what size coupler do you need for the compressor outlet. I know the intercooler side is 2.5. I measured the compressor outlet and it was 2.8@#.

Once the lip is ground down a little a 2.5" coupler should slide over and clamp securely.

Call me a Ricer, but me and friends always use Home Depot Couplars, They are cheap but good quality, and come in many shapes and sizes, and have yet to see one blow up.

Great for intakes- not smart for charge piping. Perhaps at low boost, but nobody's going fast with HDR couplers.

 

[donniekak]

Great for intakes- not smart for charge piping. Perhaps a low boost, but nobody's going fast with HDR couplers.

I used one in a pinch to get home before, it exploded into pieces.

 

[BlackMount]

are we talking about the same thing??? I've never seen one even blow off let alone actually be destroyed.

 

[1990AWD]

What are the measurements of a T3 housing collector? I have a tubular manifold that I bought back when I was a complete newb and was told it was a T3/T4 manifold. I want to measure it and see if it would fit the original T3 housing on a 20G.

 

[Bud92gsx]

How much shaft play is too much on a small 16g..I just pulled my small 16g out of storage, and it has quite a bit of shaft play, but I want to get the ebay 16g off my car....

 

[JusMX141]

What are the measurements of a T3 housing collector?

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^ Bolt center should be 3.0", not 1.0".

How much shaft play is too much on a small 16g..I just pulled my small 16g out of storage, and it has quite a bit of shaft play, but I want to get the ebay 16g off my car....

Generally as long as there's not enough up/down play for the wheels to rub the housings you're OK, but a turbo doesn't really gain shaft play from storage so something may need to be addressed.

 

[Alex7747]

is it possible to run a tdo5h hotside and a tdo6h compressor? because what i was thinking was to get the turbine off a 7cm 16g and run the 10cm tdo6h compressor wheel so i could have the quick spool and the high end power as well. i was thinking that if i welded the wg flap shut then ran an external wg that was big enough it could work?

 

[JusMX141]

You're confusing the shit out of me because TD06H is a turbine wheel as well, not a compressor as you refer to it.

You can use a 7cm TD05H housing on a TD06H turbine after it's properly machined, yes.

 

[Alex7747]

for the hahn super 20g i thought they used a 10cm compressor wheel and a 10cm turbine wheel? if that is true could i use a 7cm turbine wheel with the 10cm compressor wheel? so that it wouldn't lagy.

 

[JusMX141]

A Hahn 20G has a 10cm2 T3 turbine housing- it has nothing to do with the size of either wheel. It still has a 20G compressor and a TD05H turbine.

That in mind, you can install a 7cm DSM bolt-on turbine housing on one of these turbos and the only fabrication you'd need is to make the wastegate actuator fit.

 

[Alex7747]

oh okay thanks for clearing that up.
would that be possible though to use a bigger compressor wheel from a hx40 and a turbine from a 16g so that you have full boost at like 2500-3000 rpm and have a ton of power? and run a huge external wastegate so it wouldnt creep or am i just being unrealistic

 

[Bud92gsx]

[iGenerally as long as there's not enough up/down play for the wheels to rub the housings you're OK, but a turbo doesn't really gain shaft play from storage so something may need to be addressed.

I can just about touch the housing with the wheel..I know that's bad..But I gotts get that ebay pos off my car, so should I even attempt it or have the problem addressed?

 

[JusMX141]

would that be possible though to use a bigger compressor wheel from a hx40 and a turbine from a 16g so that you have full boost at like 2500-3000 rpm and have a ton of power? and run a huge external wastegate so it wouldnt creep or am i just being unrealistic

This would never work for so many reasons.

• The HX40 shaft is larger than a TD05H....so the wheel would fit loosely on the shaft.
  
  
• The HX40 compressor is too wide so you'd never be able to get the compressor locknut on a TD05H shaft even if it were the right size.
  
  
• With a compressor that big you'd never have full boost at 2500rpms.
  
  
• Just because you have a giant compressor doesn't mean you'll be rewarded with giant airflow. The compressor will always be limited to what the turbine can flow...in this case, around 44 lb/min. At best you'd have a really, really laggy 20G.

I can just about touch the housing with the wheel..I know that's bad..But I gotts get that ebay pos off my car, so should I even attempt it or have the problem addressed?

I'd rebuild it; although that's easy for me to say.

Have you tried filling the cartridge with oil and seeing if the play goes away?

 

[Bud92gsx]

I'd rebuild it; although that's easy for me to say.

Have you tried filling the cartridge with oil and seeing if the play goes away?

That is easy for you to say sir you do it everyday..Nah I just got the turbo from storage today I can check tomarrow..Why don't you shoot me a pm on what it might cost to rebuild having your expetise do it..

 

[mindset]

Justin I've been meaning to ask you this for awhile. Hopefully you have some input and understand what I'm asking. Here's what I'm having an issue with. Let me explain.

So as you know, Holset chargers are great because of their spool rates because they were "made for slow moving diesel exhaust." I know they're cheaper, but I somewhat disagree with the fact that, that is why they "spool faster." I lean toward this idea, because when I would go to numerous truck/tractor pulls, the number 1 turbo charger used was a PTE. Some of the tractors used up to 4 large turbos. Yet when I talked to PTE personally, they don't advertise them as "a turbo that spools faster because they are for diesel engines." They are simply larger turbos. I believe this could be a possible reason why PTE is singled out, along with other turbo manufacturers, because they don't list the "Holset fact." When really, I don't think people should be saying Holsets spool faster, because it was on a diesel. Then I see numerous diesel engines, using different brands that aren't identified as a "diesel turbo"... just as a normal turbo. Understand what I'm saying?

So my confusion is why is that fact of Holset chargers being used? I think maybe it was solely the design of the shaft/wheel assembly that allows the charger to spool quicker.

Edit: If this fact of Holset was 100% true, why wouldn't the pullers, with the diesel engines, be using Holset, and Holset only?

 

[Bud92gsx]

Justing I pulled that small 16g apart today and yes I could touch the cover with the compressor as well as the exhaust housing with the turbine..Does the small 16g hace a 7 cm exhaust housing..And I'm still waiting on a pm for price fore a rebuild..ANd I'm waiting on another pm for a 14b..

 

[JusMX141]

If this fact of Holset was 100% true, why wouldn't the pullers, with the diesel engines, be using Holset, and Holset only?

Not sure of the size of the small PTE turbo they would be using, but it's possible that this turbo has a smaller cover, fits into tighter spaces, and has a smaller rotating assembly for quicker spool than a HX30 or HX35. This is only speculation, obviously.

Some PTE turbos work fine on other applications. The Grand National guys are all about the GT3251 and GT3255 turbos which don't last until the first oil change on a DSM before developing in/out play from excessive thrust wear.

Justing I pulled that small 16g apart today and yes I could touch the cover with the compressor as well as the exhaust housing with the turbine..Does the small 16g hace a 7 cm exhaust housing..And I'm still waiting on a pm for price fore a rebuild..ANd I'm waiting on another pm for a 14b..

You should definitely rebuild it before proceeding. Pricing would be at the low-end of what is posted in my Freelance ad.

 

[Ppayer38]

Boost Leak at the back of the compressor housing on 14b just beside the oil inlet.... Fixable with rebuild or junk??

 

[Kyle_T]

Is this gap in between the vband on my 14b fine or are they supposed to be touching? Its barely 1mm. I dont have the locating pin, so thats not the problem. and the housings are lined up.

i dont know if its normal... maybe im just paranoid.

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[JusMX141]

Boost Leak at the back of the compressor housing on 14b just beside the oil inlet.... Fixable with rebuild or junk??

All you need is a new compressor cover o-ring. You can probably buy one locally at a good hardware or auto parts store that will fit just fine.

Is this gap in between the vband on my 14b fine or are they supposed to be touching?

It's fine. Once you tighten the v-band there will be no more gap.