wanted to see what everyone around here thinks of some of the bigger Holset line of turbos?

He351VE, HX30, HX40, HX50, HX52, HX55, etc.

im interested in them as well, im looking for one that puts out the same power around a gt35r, my friend with a hx35 told me he is pushing 50 pounds at 28 psi, so im guessing the hx35 is a gt30 and the hx40 is a gt35?

More specificly the He351ve

Contact GeneralTJI (Ithink he's near COSP), I believe he's running one on an EJ205.

Theyre OK, nothing that awesome. I would use a BW turbo before a Holset.

But you can pick up a holset for next to nothing.

An HX35w is going on in my Civic (h22) but it will be getting a t4 non-gated 12cm2 turbine housing with v-band outlet.

Should be good for some power once the boost gets turned up (like in excess of 450 :)

-Jerod

Btw, I picked up a low mileage HX for $150 in great condition.

seems like a really cheap option for those who want to piece together a dirt cheap turbo kit and make some good numbers but none of the less. it sure isn't a garrett or bw turbo.

For the money, they aren't bad BUT they are based off of ancient technology. Spool wise and throughout the powerband, there's almost no comparison to a billet wheel'd/dual bb but you get what u pay for i guess.

-Cody/HA.FAST.ENGINUITY

seems like a really cheap option for those who want to piece together a dirt cheap turbo kit and make some good numbers but none of the less. it sure isn't a garrett or bw turbo.


NO they are every bit as good as both of those without a doubt, don't let the fact that they are cheap(er) put you off them.

And they are not old tech at all. The billet 7 blade hx40 compressor wheel is a real nice bit of kit.

i used to have a hx55 on a ej22 spool wasnt that bad full boost was 5500
http://img7.imageshack.us/img7/6271/048aa.jpg (http://img7.imageshack.us/i/048aa.jpg/)

are all hx35 twin scroll? I found a really good deal on a holset but the guy didnt know what it was. It was not twin scroll and most of the hx35s I have seen are

sorry for thread jackin I am wondering the same thing about the holsets and am looking into them.

seems like a really cheap option for those who want to piece together a dirt cheap turbo kit and make some good numbers but none of the less. it sure isn't a garrett or bw turbo.


This cracks me up. Why do people make comments on things they know nothing about?
FYI Holset turbos are Garrett's diesel division of turbos. So to go off and say they are cheep poor quality turbos is not fair or accurate!

The reason why most Holset turbos are so affordable is because there are millions and millions of them on the road. Think about all the highway tractors, 3/4 ton plus pickups and flat bed vehicles stationary generators etc etc you see out there. These turbos are found in almost every Cummins engine out there. And considering the extremely long and termendous loads these engines/turbos go thru. I think it is safe to say that if Cummins has desided to use a Holset turbo on there extremely expensive design and built motors they are worth their wight in gold.
Why would they use a turbo that would not cut the cheese, and would tarnish the Cummins name?

LOL^^ Your biased! But PREACH on my BROTHA!:lol:

Holset's are very equal in spool and response and have very close if not better compressor maps then some of the big names like HKS or Garrett. Go to the DSM forums as we have talked about them to death and have proven their efficiency on 2.0 and Fully built and stroked blocks!

Here is a link to one of the postings: http://www.dsmtuners.com/forums/turbo-system-tech/145691-holset-turbos.html

There is no company out there like Garrett, HKS, turbonetics that can afford to put millions of dollars on everyone of their lines of turbo’s, when the only demand comes from highly modified cars, the market isn’t there. Like where else are you going to find a 35r on a mass produced vehicle? But if you have a company as large as Holset that uses and puts there large turbo’s on millions of engines all across the world they can afford to house a lot of reasurch on there turbos because they are used on everything. This would mean that a Holset Turbo would have more technology and R&R then your simple 35r would. I personally think that Garrett uses a lot of the proven designs in the diesel turbo’s and then duplicates them in a lot of ways.

This cracks me up. Why do people make comments on things they know nothing about?
FYI Holset turbos are Garrett's diesel division of turbos.

O RLY?

http://www.holset.co.uk/mainsite/files/1_4-heritage.php

I had a friend who worked for Cummins in NC. Holsets are proprietary Cummins turbos, he had a gazillion of them sitting on the shelves at work. The OEM Ford diesel turbos are all Garretts, and they say Garrett on them.

and the HE351VE are the variable turbine geometry models. you can't use those. They don't even have wastegates...the vanes are controlled by oil pressure, regulated through a solenoid. There are very few gas applications for VGT turbos. The Acura RDX has one, I've messed with a disassembled one before.

Why not? How much oil pressure does the HE351VE vane actuator need? Is it completely out of the range of a Subaru motor?

and the HE351VE are the variable turbine geometry models. you can't use those. They don't even have wastegates...the vanes are controlled by oil pressure, regulated through a solenoid. There are very few gas applications for VGT turbos. The Acura RDX has one, I've messed with a disassembled one before.

you can use them. Do a search on youtube and you'll see a couple cars running them.
heres a legacy running a VGT http://www.youtube.com/user/WhitelegacyGuy#p/a/u/1/y4lDkm6Xj5g

My next turbo will probably be a hx-40 or hx-50. Run with it. DSM'ers and Honda guys have been running them for years. They are in-expensive, durable, responsive, and there are plenty around. A friend of mine used a hx40 on a d16 build that ran a low 11, all garage built. Sometimes the subaru community gets too stuck in the mentality of gt35, gt30, 16g, 18g, 20g or stock location.... There are tons of other turbo options out there, and the Holset units are a good choice.

My next turbo will probably be a hx-40 or hx-50. Run with it. DSM'ers and Honda guys have been running them for years. They are in-expensive, durable, responsive, and there are plenty around. A friend of mine used a hx40 on a d16 build that ran a low 11, all garage built. Sometimes the subaru community gets too stuck in the mentality of gt35, gt30, 16g, 18g, 20g or stock location.... There are tons of other turbo options out there, and the Holset units are a good choice.

I will agree on you with that! I personally had a sr20 with a Hybrid HX30 housing with a HX40 turbine! It was a good match between responsiveness of the HX30 and the big kick and top end of the HX40! I ran a good 10.9 on that setup with slicks on my 240! It was a beast! After I get my motor built this summer I will try to save some money and go rotated intake manifold and then go with the a HY30 setup.

Why not? How much oil pressure does the HE351VE vane actuator need? Is it completely out of the range of a Subaru motor?

The controllers can't be used without CAN commands, CAN commands that nobody knows because it is proprietary. I don't know how that Legacy is doing it, but all of the VGT setups I have seen are vastly inferior to the factory design. Some people are using wastegate actuators to control the vanes and then running an external wastegate on top of that. An external wastegate defeats the purpose of a VGT turbo. The whole point of a VGT turbo is that all exhaust is always driving the turbo. There is no wastegate by design. And that is only achieved by designing the turbo, manifold, engine, and control system together as a system instead of slapping a junkyard turbo on your car. I've got a 2006 paper on VGT turbos for gas applications which discusses this if you want to see it.

You're better off with an HX35 or HX40 turbo. HX55's are also popular turbos on drag cars.

here's how it works on the Garrett VGT's for Ford applications:

http://i287.photobucket.com/albums/ll154/arghx7/VGT_turbine-1.jpg

http://i287.photobucket.com/albums/ll154/arghx7/VGT_turbine_control-valve-1.jpg

http://i287.photobucket.com/albums/ll154/arghx7/VGT_turbine_operation-1.jpg

http://i287.photobucket.com/albums/ll154/arghx7/VGT_turbine_low_speed-1.jpg

http://i287.photobucket.com/albums/ll154/arghx7/VGT_turbine_mid_speed-1.jpg

http://i287.photobucket.com/albums/ll154/arghx7/VGT_turbine_high_speed-1.jpg

you can see that there's no wastegate. It's a sweet design, but it's not conducive to being shoehorned into some other random car. The HX turbos are great for that, but not VGT turbos. Yes people have proven it can be done... but what's the point?

I was gonna go with an Hx turbo but I soon realized I was better off with a Borg Warner turbo, the price of a good hx40 has raised alot lately, the 6 blade pro was around 400 dollars, add the cost of a rebuild and a new exhaust housing from BEP and your basiclly in the same boat.

Gl guys, I've seen too many ppl blow holsets, they are good turbos, just too much maintenance for me, not to mention if you don't get a billet wheel your looking as longer respool times, the wheels are in fact old texhnolgy and are made for longevity, not to spool fast in 7000+ rpm's. Don't get me wrong it still spools there but compared to borgs and for the price, i decided to go with the bw.

My 2 cents though

Holsets aren't really that cheap anymore, not like a couple years ago.

The controllers can't be used without CAN commands, CAN commands that nobody knows because it is proprietary. I don't know how that Legacy is doing it, but all of the VGT setups I have seen are vastly inferior to the factory design.

So why not use the Subaru ECU's controller? Does anyone make an oil control solenoid that accepts a PWM signal, like the 3-port air control solenoids so many Subaru use? If you can solve that problem, you've got target boost at any throttle/rpm combination, with tunable proportional and integral feedback. (On the 32-bit ECUs anyway.)

What's the electrical signal that drives the oil control solenoids in the OEM VGT setups? If it's PWM, and if the oil pressure is comparable, then it seems like it ought to be do-able.