Holset Turbos, PART 8

[JusMX141]

Yes, it's billet....obvious by the machining cuts. There are billet Holset compressor wheels that are not shiny as well.

 

[kp116]

Well it was fun while it lasted; all 1500 miles or so.

HX-40 carnage

Still trying to figure out how it happened. Car was running great and then... POW! Like hitting a wall and a ton of smoke.

Sorry to hear that man! Mine did the exact same thing after about a year of abuse.

 

[donniekak]

Yes, it's billet....obvious by the machining cuts. There are billet Holset compressor wheels that are not shiny as well.

Really? I have a wh1c with machine marks just like a billet wheel. I figured the mold for the casting must have been made from a billet wheel.

 

[viperlp01]

Really? I have a wh1c with machine marks just like a billet wheel. I figured the mold for the casting must have been made from a billet wheel.

Ya thats what confused me. I had a Wh1c that isn't shinny but it seems like it had the machining marks.

 

[kmv]

Does anyone knows if a small h1c(8 blade 50mm ind/83mm exd and has a hx35 turbine wheel in a .55 bep housing) could out spool an evo 16g? My 16g is dying and I wanted to replace with something that would out spool it or at least the same and follows a bit more.

 

[JusMX141]

Really? I have a wh1c with machine marks just like a billet wheel. I figured the mold for the casting must have been made from a billet wheel.

Bear in mind the machined Holset wheels are simply made to be more durable than cast- they are not necessarily lighter, more aerodynamic, or any more efficient than their cast counterparts.

It's wheels like the HTA68 that push the billet's durability to the limit by having a much thinner and lighter blade with a smaller hub area that are much more efficient by design.

 

[donniekak]

Bear in mind the machined Holset wheels are simply made to be more durable than cast- they are not necessarily lighter, more aerodynamic, or any more efficient than their cast counterparts.

It's wheels like the HTA68 that push the billet's durability to the limit by having a much thinner and lighter blade with a smaller hub area that are much more efficient by design.

Yeah the good billet wheels have a smaller hub, and thinner blades. Kind of like the evo3 revision of the big 16g. I'm actually looking at a billet 20g for a taste test until i get a look at the new bw's. Should have 50 trim flow while lasting when pushed, hard. I've had the wh1c staring at me on the shelf though.

 

[JusMX141]

I'm actually looking at a billet 20g for a taste test until i get a look at the new bw's.

Look no further!

 

[donniekak]

Look no further!

Exactly what i'm looking at. I run e85 so the td05 turbine isn't much of a big deal. It's a toss up as to whether or not to buy a dsm housing for my wh1c, or run a 20g. The hx35/wh1c turbo's are way tougher than the hx40's, so the holset and 20g will probably both hold up to my bashing. I know what the hx35 compressor can do, i'm waiting to see some numbers on one of these 20g's, by someone who is really pushing it.

 

[Calan]

The hx35/wh1c turbo's are way tougher than the hx40's....

Now he tells me.

 

[viperlp01]

Holset HX40(HX 40, HX35, HX 35) 60mm Billet wheel: eBay Motors (item 320609182114 end time Oct-31-10 15:36:06 PDT)

I put some up on ebay for people interested in them

 

[JusMX141]

i'm waiting to see some numbers on one of these 20g's, by someone who is really pushing it.

I'd estimate that one of these turbos would outperform a FP HTA68. The 20G is already a 44 lb/min wheel in cast form- throw in the fact that the billet wheel has such a small hub area and the billet 20G is bound to be more efficient than it's cast counterpart.

Blouch is also building these from Evo III 16G's instead of the standard Big 16G that FP is using, meaning you're getting a lighter and better-flowing turbine housing right out of the box. Blouch is also clipping the turbine to support the added airflow the 20G wheel is providing.

I don't see why one of these 20G's couldn't reach 47-48 lb/min given the new technology....and to think that there may exist a direct bolt-on turbo with MHI reliability that is capable of 48 lb/min while spooling as quick as an Evo III 16G for under $900 new is insane. I don't know how companies like PTE are still selling their Garrett-based junk 50-trims anymore.

 

[dsmmatt28]

I don't know how companies like PTE are still selling their Garrett-based junk 50-trims anymore.

Cause people dont do enough due diligence on the type of turbo their about to buy. There are people out there that have a dsm and dont even know about this website to help them.. I know I was one of them a few years ago.. The amount of info that i have learned is priceless.. Thanks Dsmtuners

 

[jjrock5]

Wow I just started looking at the Blouch 20g and it looks legit. I am considering the 68HTA but it looks like the Blouch 20g may give it some competition.

Anybody have any data on which of these turbos may perform better?

YouTube - Blouch Dominator XTR series turbos

 

[turboboy4]

That turbo is sick the machining process is amazing

 

[Jokeri]

How do those guys develop their turbo wheels?

 

[dsmtalontsi95]

Blouch also makes the bbk for the evo's and they are crazy for what they are.

 

[joyfil2001]

I'd estimate that one of these turbos would outperform a FP HTA68. The 20G is already a 44 lb/min wheel in cast form- throw in the fact that the billet wheel has such a small hub area and the billet 20G is bound to be more efficient than it's cast counterpart.

Blouch is also building these from Evo III 16G's instead of the standard Big 16G that FP is using, meaning you're getting a lighter and better-flowing turbine housing right out of the box. Blouch is also clipping the turbine to support the added airflow the 20G wheel is providing.

I don't see why one of these 20G's couldn't reach 47-48 lb/min given the new technology....and to think that there may exist a direct bolt-on turbo with MHI reliability that is capable of 48 lb/min while spooling as quick as an Evo III 16G for under $900 new is insane. I don't know how companies like PTE are still selling their Garrett-based junk 50-trims anymore.

I can't get more than 47lb/min on my HX35 at 28psi. And I can't run higher boost due to knock(need meth, and it's a stock block). I am seriously thinking about this bad boy. Should be a hell of a lot easier to spool on my AUTO and just as effective as my HX35 now. Anyone interested in an HX35 setup?

 

[JusMX141]

I can't get more than 47lb/min on my HX35 at 28psi. And I can't run higher boost due to knock(need meth, and it's a stock block).

You either need meth or better fuel. You will notice quite a difference at 30+psi if you ever get to that point. TalonDave never ran more than 32psi with his previous HX35 on a fully stock 6-bolt, and I believe the most he logged was around 53-54 lb/min consistently with a few 56 lb/min spikes.

I would think with 35psi and with something better than the stock throttle body and intake manifold he would have no doubt seen 60 lb/min. Ricky's (dacowgod) brother's 1G logged 57 lb/min with a 7-blade HX35 in a DSM bolt-on turbine housing with a 2.4L engine. I believe boost was around 35psi as well.

 

[joyfil2001]

If we had E85 in Jersey I would switch in a heart beat. We don't yet so that sucks. And I don't really want to buy and set up meth right now. I don't want to push my stock 7 bolt too hard because I put 20k+ miles a year on it commuting.

 

[Pirrofab]

when my ignition system isnt breaking up and carrying on I have seen a best of 21-22 psi at 27lb/min. Turbo just starts to wake up at that point and it feels sweet. I just wish the ignition system would cooperate. Im not recording detonation so I believe the coil or the wires are crap. Even though the wires and plugs gapped (.28) are brand new, I may throw on my c.o.p set up and see were that gets me. I want to open this thing up so bad.

 

[bastarddsm]

I have seen a best of 21-22 psi at 27lb/min. Turbo just starts to wake up at that point and it feels sweet.

Some thing is wrong there. I'm seeing 40lb/min on my t3 8blade wh1c at that boost.

 

[Pirrofab]

Some thing is wrong there. I'm seeing 40lb/min on my t3 8blade wh1c at that boost.

This is on an 8 blade 35 with .55 bep housing. ported head, 272bc cams and magnus street smim. I just recently did a boost leak test and found some issues. I may have another boost leak. Im still trying to learn dsmlink v3 so I hope I have the thing calibrated right. I actually thought everything was ok and what I was seeing was good, guess I'll be driving around with the laptop tonight. The car spits and sputters in 1st and 2nd and seems to clear out and get better in 3rd and 4th.

 

[bastarddsm]

This is on an 8 blade 35 with .55 bep housing. ported head, 272bc cams and magnus street smim. I just recently did a boost leak test and found some issues. I may have another boost leak. Im still trying to learn dsmlink v3 so I hope I have the thing calibrated right. I actually thought everything was ok and what I was seeing was good, guess I'll be driving around with the laptop tonight. The car spits and sputters in 1st and 2nd and seems to clear out and get better in 3rd and 4th.

Somethings waay off on your tune, or something. There are several 45lb/min @25psi cars out there. Even in the bep housing. What are you measuring air with?

You can calculate your lb/min with your IDC.
1. find your injectors rating in lb/hr.
2. Take a log of idc and AFR
3. Find a sample where your car was running ok
4. lb/min = (idc/100)*(inj flowrate in lb/min)/60 * AFR.

 

[joyfil2001]

I'm running the .55 BEP housing and see about 40lb/min at 22psi. At 28psi I'm seeing 47lb/min. Stock motor, stock head. Tuned it myself. Fix your boost leaks. I guarantee that is what causes those low lb/min numbers you are seeing.