Holset Turbos, PART 6

[dsm-onster]

That holset link stated over 1200cfm (about 87lb/min) capable. The hx52 "pro" compressor map from cummins goes to 87lb/min or about 1200cfm at it's absolute limit based on the map. They also state the super40 has over 850cfm capapbility and the map shows 68lb/min. The standard high flow hx40 flows 850cfm at it;s absolute limit.

That hx52 pro map they show (click) is farther to the right than the hx52 pro map they've shown earler, which everyone uses. . .

So, I'm thinking that the 'regular' hx52 flows 87lb/min. And the pro flows more. ? ? ? ?

 

[Slippi84]

That holset link stated over 1200cfm (about 87lb/min) capable. The hx52 "pro" compressor map from cummins goes to 87lb/min at it's absolute limit based on the map. They also state the super40 has over 850cfm capapbility and the map shows 68lb/min. So, I'm thinking that the 'regular' hx52 flows 87lb/min. And the pro flows more.______? ? ? ?

Yeah I don't think I have a 71mm inducer but knowing that they have one that SHOULD flow over 87lbs/min is very appealing to me. I don't think it's worth ditching a hx52 billet wheel model for a pro but if you are in the market for a gt42/s374/hx52 that would be the best bang for you buc out of the bunch considering potential and price.

 

[dsm-onster]

I agree completely!!!! It's not liek the 66mm wheel won't net 700+whp easily. So You're out to get something more if you must have this upgrade. And you know what you're doing to get the benefits of it

 

[Mike1992]

For anyone intersted here's a few pics of my oil restrictor setup on my Holset H1E.

.063 Nitrous Jet
ExpremePSI Oil Feed Fitting (Drilled out and grinded down to fit the nitrous jet)

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[cooldude919]

Whats the best air intake setup if you dont need recircuation or emissions stuff? Just a 4 inch filter off the turbo? Or is it worth getting a FP air intake?

 

[TimG]

Or you could get some 4" piping and weld it up yourself like most of us do. Much cheaper than an FP intake pipe.

 

[91-gsx]

Whats the best air intake setup if you dont need recircuation or emissions stuff? Just a 4 inch filter off the turbo? Or is it worth getting a FP air intake?

The best intake you can buy or make is 4 inch tubing to the stock sidemount location. The lower intake temps make a big difference. Basically a cold air intake.

 

[cooldude919]

So for an hx35 whats the best cams for the money? Comp 101200? Are the hks 272's worth the extra ~$200, or is that better put towards something else?

 

[gstryyder]

the dks 272's... i personally would pick their 264/272 if you want the low end a bit more... i will be running kelford 264/270 cams on my hx35 and see how those do. =D

 

[ninesixtwo]

Small update on mine, I have pretty much everything finished up. I've been driving the car around for a while, have about 200km on it and I'm really happy with the preliminary results. I'm seeing positive pressure before 2000RPM, full boost (1bar) by 3300RPM and a DSMlink estimated 398hp. Keeping in mind that 15psi is only WG pressure, I'm very excited to see what the next couple weeks and another 10psi have in store!

 

[red1993gsallmt]

For anyone intersted here's a few pics of my oil restrictor setup on my Holset H1E.

.063 Nitrous Jet
ExpremePSI Oil Feed Fitting (Drilled out and grinded down to fit the nitrous jet)

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you can also just tap some threads into the inlet of the supply fitting (where you put your nitrous jet) and then thread an allen key set screw into it and drill the set screw to what ever restrictor you want. That way if u ever want to change it u simply take the set screw out and drill it bigger or drill another one smaller. This is the easiest and best way i have come up with, and it uses less fittings

 

[interex]

Anyone know if there is a different turbine housing for the H2E series, to do away with this odd stock holset one?

 

[v8s_are_slow]

Okay, I've stumbled onto the Holset stuff that I've basically ignored for a long time now cause I've been pro E16g/20g turbo's. Was looking at the actuator mod shown on another thread so started looking for the actuators on ebay. That's when I noticed that these turbos go for pretty cheap on ebay. So I started searching on here but there's a LOT of info and so just trying to have a few questions answered real quick that I haven't found yet.

Where would I buy a bolton .55 housing? I see people saying BEP but is there a website? Tried doing a google search but don't think BEP=Black Eyed Peas. I'd like to stick with a stock (if possible) or FP manifold.

What would a HX35/40 translate to in other turbos? Such as GT35R, 16g's, 20g's, etc.? What is it close to? I've been wanting an E16g again or another 20g for a long time now cause the spool comes on quick so wondering how this turbo would compare.

What size injectors are you guys running for these things? Figure a 255 pump, and whatever size injectors? Also, went to turbodaddy.net cause I saw it mentioned somewhere and there's a ton of different 35/40 part numbers. Dunno the difference or what's best to go with. Anything I should be on the lookout for if I get one off ebay? Or is there a better place? Thanks.

Oh yeah, also worried about fitment issues cause I know space is tight on a 2g. I'll be going side exit exhaust and water/air i/c setup though.

 

[gbradley]

Okay, I've stumbled onto the Holset stuff that I've basically ignored for a long time now cause I've been pro E16g/20g turbo's. Was looking at the actuator mod shown on another thread so started looking for the actuators on ebay. That's when I noticed that these turbos go for pretty cheap on ebay. So I started searching on here but there's a LOT of info and so just trying to have a few questions answered real quick that I haven't found yet.

Where would I buy a bolton .55 housing? I see people saying BEP but is there a website? Tried doing a google search but don't think BEP=Black Eyed Peas. I'd like to stick with a stock (if possible) or FP manifold.

What would a HX35/40 translate to in other turbos? Such as GT35R, 16g's, 20g's, etc.? What is it close to? I've been wanting an E16g again or another 20g for a long time now cause the spool comes on quick so wondering how this turbo would compare.

What size injectors are you guys running for these things? Figure a 255 pump, and whatever size injectors? Also, went to turbodaddy.net cause I saw it mentioned somewhere and there's a ton of different 35/40 part numbers. Dunno the difference or what's best to go with. Anything I should be on the lookout for if I get one off ebay? Or is there a better place? Thanks.

Oh yeah, also worried about fitment issues cause I know space is tight on a 2g. I'll be going side exit exhaust and water/air i/c setup though.

BEP is short for Bulls Eye Power. I bought my hx40/dsm housing from them. As far as fuel supply I'm using fic 850's which are maxxed out at 30psi of boost and using a Walbro 255hp intank feeding a Bosch 044 on a KB boost-a-pump. The size of the injector needed depends on type of fuel used. For example pump and e85 require larger fuel injectors than race fuel. From what I've read the most desirable hx40 is the one with the 6blade 60mm comp wheel. Hope this helps.

 

[JusMX141]

Where would I buy a bolton .55 housing? I see people saying BEP but is there a website?

Bullseye Power Turbos

Tim's Turbos - Steel Turbine Housing, Mitsubishi Inlet

G-Pop Shop

What would a HX35/40 translate to in other turbos?

A HX35 will spool like a 50-trim Garrett but outflow a 60-1.

A HX40 will spool like a 60-trim Garrett and flow like a GT35R.

What size injectors are you guys running for these things?

My buddy's running PTE 780's with his HX35 at around 30psi, and he's seeing peak IDC's around 88% at wide-open throttle.

I saw it mentioned somewhere and there's a ton of different 35/40 part numbers. Dunno the difference or what's best to go with.

Read page 1:

http://www.dsmtuners.com/forums/turbo-system-tech/327647-holset-turbos-part-6-a.html

 

[v8s_are_slow]

K thanks guys. I feel like a dumbass now with the BEP=Bullseye Power. I should've known that one. Sheesh.

Wondering how the spool would be with a bolt-on housing versus a T3/T4 housing. I'd like to keep a Mitsu flanged manifold in case I ever blew the turbo and needed to bolt in something else. I'll research some more. Just had those quick questions. Thanks.

 

[boostcrazy92tsi]

Ive yet to see any pictures of how much everyone is porting their PR o2 housings. If anyone has theirs off the car and would snap some pics that would be great. I have an hx40 7 blade on its way and before I buy my turbine housing Id like to see how the PR housing works. From what ive noticed in this thread that alot of people are running that setup with the .55 bolt on. Lets see what you guys got!

 

[kawboy]

Just port match it to the housing. That simple

And if you search through these threads there ARE pics posted.

 

[v8s_are_slow]

Does anyone have their piping routed to the passenger side for the i/c pipes? I wanna go water/air i/c versus air/air but my concern is the engine mount and cross member being in the way. I've read thru 5 or 6 pages so far but too much Chuck Norris talk and other stuff not related to what I'm interested to wanna keep pressing on for now. Anyway, pics would be great. Thanks.

 

[Slippi84]

Does anyone have their piping routed to the passenger side for the i/c pipes? I wanna go water/air i/c versus air/air but my concern is the engine mount and cross member being in the way. I've read thru 5 or 6 pages so far but too much Chuck Norris talk and other stuff not related to what I'm interested to wanna keep pressing on for now. Anyway, pics would be great. Thanks.

Steve(biglady) does or atleast did on his hx52 setup.

 

[carbide]

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This is the 3" O2 housing I'm using on my .55A/R BEP 446awhp DynoDynamics stock block car.

It's from Ebay and I put v-bands on it. The pipe is kinda smashed a bit to fit under the wastegate tube and the hole in the flange is not 3". I did open both the wastegate and outlet holes up a tiny bit more.

 

[v8s_are_slow]

That thing looks pretty sweet. How much did that setup set ya back? Wouldn't do me much good though cause I plan to go with a side exit exhaust. You plan to use a gasket in between the turbo and the flange there? Wondering if one needs to be hacked up a bit to make it work properly.

 

[carbide]

I ground a stock 2G 02 housing gasket to fit.

It's an Ebay housing $95, Tial MS-V I paid like $250 for, a new v-band, and welding..so maybe $400, plus I had it ceramic coated later .

 

[dsm-onster]

Well a I4 Saab guy has made 666bhp with the hx40pro. I got this in my PM box 2 days ago:

Dynoed the car yesterday and gav 601whp on the 3rd run.
These sheets are bhp and the factor is roughly 10% in them all
http://www.stcf.net/ProjectX/run1.jpg
http://www.stcf.net/ProjectX/run2.jpg
http://www.stcf.net/ProjectX/run3.jpg
Max boost 2.2bar, begins to fall steadily from 7k rpm and around 2.1-2.15 at peak power.
Video of the 3rd run
http://www.stcf.net/ProjectX/x_in_dyno.wmv

Turbo is/was the HX40super with #18 turbine housing. Turbine back pressure raises steadily and is equal to boost at rev limitier.

This particular hx40 turbo is has the lower flowing 10blade turbine wheel, in the 18cm^2 twinscroll turbine housing with divided manifold. Only 31psi and with a head that, correct me if I'm wrong, probably flows a little less. The backpressure is what amazes me. Kiggly commented on his twinscroll setup's backpressure. With all his records, he said he hadn't even seen the same pressure as boost yet !

His build is detailed here. Vigge's Hx40 build thread. Good thread. LOTS of details/logs on the hx40. He's also another one who's swapped from a gt3076r to an hx40 and loves the difference. WAY more power, same spool .

 

[SpeedAddict62]

Well a I4 Saab guy has made 666bhp with the hx40pro. I got this in my PM box 2 days ago:

This particular hx40 turbo is has the lower flowing 10blade turbine wheel, in the 18cm^2 twinscroll turbine housing with divided manifold. Only 31psi and with a head that, correct me if I'm wrong, probably flows a little less. The backpressure is what amazes me. Kiggly commented on his twinscroll setup's backpressure. With all his records, he said he hadn't even seen the same pressure as boost yet !

His build is detailed here. Vigge's Hx40 build thread. Good thread. LOTS of details/logs on the hx40. He's also another one who's swapped from a gt3076r to an hx40 and loves the difference. WAY more power, same spool .

Well it should come as no surprise. A well matched compressor and turbine should produce more boost than backpressure. How was backpressure measured?