Opinions on the Holset HX40 Turbo
 

I am looking into getting rid of my 20g and getting a holset HX40. Has anyone ran this turbo or have any information on it? It claims to be good up to 400-600 HP or so they say.

Re: Opinions on the Holset HX40 Turbo
 

Bullseye stuff for the lose. Just get a bolt on PTE.

Re: Opinions on the Holset HX40 Turbo
 

Im pretty sure that Bullseye does not make Holset turbos...

Re: Opinions on the Holset HX40 Turbo
 

Bullseye sells Holset turbos with their hotside, just like they do with Borg Warner turbos.

Re: Opinions on the Holset HX40 Turbo
 

But hes not talking about getting a bullseye turbo he is talking about getting a Holset turbo(Turbo truck turbo)

Re: Opinions on the Holset HX40 Turbo
 

Since he said he had a 20g and wanted to go to a Holset i ASSUMED he would be using a mitsu manifold which means he would need the Bullseye housing.

Re: Opinions on the Holset HX40 Turbo
 

What is the bad part of this brand turbo that you have come across or dont you have any personal experience with these turbos? Just wondering.

Re: Opinions on the Holset HX40 Turbo
 

Friend of mine had one and its just not all that great. He was running it on a 2g manifold so he had to cut the water pipe and make some sort of flexible section back there. That alone made me never want to do it. I'm sure that could be corrected with a different manifold, but i'd just get something like a pte thats been said above. I have a turbonetics 62-1 and love it.

Re: Opinions on the Holset HX40 Turbo
 

The stock hotside on a holset is likely way too big, since it is meant for a diesel truck. That means you have to run the bullseye housing, which isn't that great.

Re: Opinions on the Holset HX40 Turbo
 

It is all mitsu bolt on and comes with a spacer and longer hardened studs to space out the manifold so you dont have to dent the water pipe or anything like that. It bolts up to the mitsu manifold and 02 housing.

Re: Opinions on the Holset HX40 Turbo
 

Unless it was suuuuper cheap i would still go with other, more popular options.

Re: Opinions on the Holset HX40 Turbo
 

If it is a mitsu bolt on, then it has the bullseye housing on it already.

Re: Opinions on the Holset HX40 Turbo
 

Bringing thread back to life, I too have been eyeing up the HX30 or 35. What is sooo shitty about the bullseye exhaust housing? Its cast, probably half ass machined, but so what, it probably won't fall off the car. The Holset turbos are cheap as hell, and if you can make it bolt on I say why not. Anyone more recently install one?

Re: Opinions on the Holset HX40 Turbo
 

Poor driveability caused by high boost threshold and low power output. How can you justify 'its cheap'...don't you LIKE to drive your car?

Re: Opinions on the Holset HX40 Turbo
 

That seems to be the problem with most cars. they go for the "Cheap" route and end up with bad expirences later on because they rationalized with themselves and wanted the big turbo because it was cheap.

Re: Opinions on the Holset HX40 Turbo
 

Get a real turbo.

Re: Opinions on the Holset HX40 Turbo
 

I ended up getting a SCM61 instead.

Re: Opinions on the Holset HX40 Turbo
 

Good idea.

Re: Opinions on the Holset HX40 Turbo
 

Yeah.

Re: Opinions on the Holset HX40 Turbo
 

Sorry for bringing back an old thread. I was browsing around this pretty nice forum and I couldn't help myself. Boy, for not knowing anything about Holsets, you guys have a lot of advice about the HX40.

10 points to clear the dust about the Holset:

1)Bullseye Power (BEP) doesn't make Holsets. They sell/sold them.
2)Brent Rau, the fastest 4g63 driver in the world, has a Borg-Warner turbo procured from Bullseye Power.
3)The gt35r is a ford turbo diesel upgrade. Curt Brown's Evo featured a gt37, another “diesel turbo”.
4)The hx40 pro in the .55a/r BEP turbine has put down over 650whp by an amateur tuner
5)Considering the hx40 pro has a 68lb/min choke flow (60% efficiency), it is apparent that the .55 a/r housing is NOT a restriction to the HX40. The bolt-on hx40 still spools FASTER than the lower flowing gt35r. This is a testimony to the HX40 turbine wheel or the BEP turbine housing. Take your pick.
6)The hx40 in the .55 a/r BEP housing spools to 20+ psi by 4100rpms on a 2.0L motor with 272-style cams. How much later spool is this versus the OP's 20g if it is a td06 20g?
7)The HX35 in the bolt-on housing on a 2.0L4g63 with stock exhaust manifold at 25psi has put out 494whp. Another DSM with stock intake and exhaust manifolds has gone 11.2@ 126mph with a nearly stock weight AWD. These hx35 compressor wheels have the 52lb/min compressor map. It is apparent that the .55 a/r housing is NOT a restriction to the 52lb/min HX35.
8)The hx35 in the .55 a/r BEP housing spools to 20+ psi by 3500rpms on a 2.0L motor with 272-style cams. How much faster spool is this versus the OP's 20g if it is ANY 20g variant.
9)The HX35 and HX40 cores are rebuildable. Garrett ballistic turbos are not. Holsets have been known to last literally over a million of miles under constant surge and rapidly changing flow demands.
10) How much did YOU pay for your turbo?

If some of you are trying to steer sales away from BEP, then you're going to have to talk negatively about some product other than a Holset. A crappy GARRETT v-trim turbo performing poorly in a 4g63 application has nothing to do with a Holset.

All the proof, experiences, and data can be found in the links within the first post of this thread (and in the rest of the thread of course). I am definitely not trying to be smug. I completely understand why one wouldn't recommend a turbocharger they know nothing about. So this is the only reason why I am posting this.

Re: Opinions on the Holset HX40 Turbo
 

hahaha.

I kinda want a Holset just to really see if its any good. If it sucks, I sell the bitch and get what was proven all along, an FP turbo.

Re: Opinions on the Holset HX40 Turbo
 

What does #2 have to do with Holset's? BW's are a different animal.

Re: Opinions on the Holset HX40 Turbo
 

I think it had some to do with Bullseye selling a bolt on housing for them.

Re: Opinions on the Holset HX40 Turbo
 

It's to clear the air about what BEP makes and what BEP sells. Since they are different things, you can't exactly get b!tchy at BEP if a garrett fails. You get irrate with the turbo manufacturer. Considering that Brent Rau buys from BEP, there must be some goodness there. Somehow they manage to know what they are doing.

Many have yelled that the bep housing is a restriction and shouldn't be used because 50000more hp was made with a garrett turbine housing. The same can be said with any bolton housing. And for one to yell about his loss in power means that said person didn't choose his turbo properly. The bep housing is a specific piece and it takes TWO things, the turbine wheel AND the turbine housing, to make a turbocharger turbine. The flow is based on both. A turbine wheel should be used to determine flow, because if you know a charger, you know that a turbine housing TWEEKS flow and spool. It is not the chief dictator of it. If you have a t3 stage 5 turbine wheel and you chose a bep turbine housing because you want to have sub 4500rpm spool speed then why yell about the loss in flow? The stage 5 wheel is just that kind of animal. You cant get the flow out of it with out the lag.

Good thing about the holset is that thier turbine aerodynamics is drastically improved. The hx35 turbine wheel is about as big as the t3 stage 5 turbine wheel. And in the bep turbine housing, it spools to 20+ psi before 3600rpms. And spools to 20+ psi before 4K typically with a turbine housing that lets it flow enough for 600whp. . . BEP chose well. And their turbine housing with the stock hx35 turbine wheel matches well for the 52lb/min hx35 compressor.

Now the small bep housing with the hx40 turbine wheel has output over 650whp with the large hx40 compressor, so you know that the turbine housing isn't a choke for the hx40 turbine wheel either.

Re: Opinions on the Holset HX40 Turbo
 

Pretty sure Rau is sponsored by BW, so he likely doesnt pay for shit as far as turbos go.

Are there any hx35/40 cars out there trapping 145mph or higher?

Re: Opinions on the Holset HX40 Turbo
 

How about 150+..

Re: Opinions on the Holset HX40 Turbo
 

Buy is the wrong word. I should have said that apparently Brent Rau sees eye to eye with BEP on turbos. Kiggly runs a BEP Borg-Warner turbo as well.

If I'm willing to accept the lag of a ball bearing gt35r hotside with a compressor capable of pushing a 2700lb car to 154mph, i'd get the larger .70a/r bep turbine housing with the hx40. In the mean time the smaller housing gives me spool about 500rpms faster than that gt35r variant in an single scroll housing and has done over 650whp:

http://www.dsmtuners.com/gallery/fil...hx_working.jpg

It spools faster than the gt35r :) since as you can see, the power band looks pretty much the same as the comparison turbo from which directly swapped on the dyno. That comparison turbo was the gt3076r. And that was all he could get out of the gt30r. How much more could the hx40 do with one of the larger turbine housing options.

Now I agree that trap speed is a better indicator of hp, when you know the race weight. . . Are you looking to compare the garrett or other similar flowing turbine counterpart to the hx35/40? Since these ARE real turbochargers :) . There are similarly flowing turbos between brands but drastically different spool speeds. Airflow is airflow. Efficiency is efficiency.

Re: Opinions on the Holset HX40 Turbo
 

I'm aware they run BW turbos, but I'd think any credit for the performance of a BW turbo belongs to BW, not the middle man (BEP).

Do the fellows you mentioned use a BEP housing on their BW turbos? Did they get their turbos from BEP?

Re: Opinions on the Holset HX40 Turbo
 

Of course the credit goes to BW. Of course they don't use a BEP housing. Same with the V-trim. "Credit" goes to garrett. Who has drastically improved with the gt line. . .

Of course the BEP housing works well with the hx35. Of course the BEP housing works well with the hx40.

Again, BEP knows turbos well. And you don't have to buy their turbine housing. Earlier in this thread, holset was looked down on because BEP was attached to holsets on DSMs. Isn't the point clear? A turbine housing may do poorly with one turbine wheel and do well with another. Is that more clear? I got my holset from ebay from a cummins guy upgrading his truck. I guess that makes my turbo better than buying it from BEP. Can't complain about the turbine housing, because my turbo spools as fast as the 16g that was installed before and flows 3-4lb/min more at the same boost through out the rev range. Hol-sex:)

Re: Opinions on the Holset HX40 Turbo
 

To me it appears you are attaching BEP to BW in the same manner.

I just don't see the relevance when comparing a Holset to a BW simply because one company makes aftermarket housings for both.

Re: Opinions on the Holset HX40 Turbo
 

Wheelhop, do you work for BEP?

Re: Opinions on the Holset HX40 Turbo
 

No. Do you work for FP? I'm eliminating my BEP turbine housing this season for a divided runner manifold with the stock holset turbine housing. I would like to see what it does. So far I'm happy that the turbo has done what a 20g can do. I'd like to see how much more flow per psi I can extract. . .

OK ??? So you're getting it. I'm using the same attachment to BW. But we don't look down on BW do we, though the attachment is the same, correct?

I'm saying Holset, BW and garrett are the same thing: turbo brands sold by a vendor that had poor success with garrett turbos. ???

WTF would you all do if BEP started selling gt turbos? Regardless, the hx40 spools as fast as the gt3076r and has at least 100whp more potential. The hx40 spools faster than the gt35r and flows at least the same perhaps a little more. BEP or not.

I just don't want to see this sh!t abotu holsets are "bad seads" because they are BEP turbos. BEP can be lousy or not. That doesn't affect the performance of BW turbos, Holset turbos, or Garrett turbos. Their housings may clamp up one turbine wheel but what does that have to do with another? Different aerodynamic tech is involved. But I CAN see someone avoiding holset turbos because they want a bolt on and the only option is the bep turbine housing and after hearing the first part of this thread I wouldn't blame them. But as I mentioned, the information was by guys that don't really know anything about holset turbos in bep housings. . .

Re: Opinions on the Holset HX40 Turbo
 

Wheelhop, are you best friends with BEP?

Re: Opinions on the Holset HX40 Turbo
 

Does the HX40 make more power and spool faster than an SC61? How much do they cost? Or is an HX35/HX40 hybrid a closer comparision? Or is the HX40 too small?

Re: Opinions on the Holset HX40 Turbo
 

LOL, I see you're getting the hang of this board.

Re: Opinions on the Holset HX40 Turbo
 

I don't look down on either of them. Never once did I say I was against either of them.

I just don't think the success/failure of one turbo is a valid arguement for judging the success/failure of a completely different turbo designed by completely different companies (ie: Holset's are good because so and so run BW's). That's all I'm saying. Run what you want.

Re: Opinions on the Holset HX40 Turbo
 

YESS!!! thank you! You more than get it!

Well, the .63 a/r scm 61 with the t350 turbine wheel spool spools about 400rpms faster (based on my experience) as the 60mm compressor hx40 in the BEP .55 a/r turbine housing. You see what the hx40 in the .55a/r turbine housing can do. What cam the scm6152 do?

The scm6176 is a better choice to match that power level, no doubt. But the spool speed is several hundred rpms later than the scm6152.

The the scm61 has the 56 trim gt35r compressor map. great compressor, but the 69lb/min hx40 pro compressor hasn't even been very hard pushed yet.

LOL, this is the second time he's done that.

Re: Opinions on the Holset HX40 Turbo
 

I give up.

Re: Opinions on the Holset HX40 Turbo
 

Spoon feeding again:

"Holset turbos suck because bep sold a garrett turbo that sucks."

I_just_don't_want_someone_to_think_that_holsets_su ck_because_BEP_sold_them_or_because_for_a_bolt_on_ you_have_to_use_the_bep_housing. BEP doesn't build holsets and holsets work well in the bep housing. Simple.

Re: Opinions on the Holset HX40 Turbo
 

Poop-in-Your-Eye Power turbos!