Opinions on the Holset HX40 Turbo

[95talonracer]

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.

[Super Bleeder!!]

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

[blageo23]

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

[Jakey]

Originally Posted by blageo23

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

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

[blageo23]

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

[Super Bleeder!!]

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.

[95talonracer]

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.

[92Laser]

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.

[JET]

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.

[95talonracer]

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.

[Super Bleeder!!]

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

[JET]

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

[sleepydsm]

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?

[scheides]

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?

[tpunx99GSX]

Originally Posted by scheides

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?

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.

[Super Bleeder!!]

Get a real turbo.

[95talonracer]

I ended up getting a SCM61 instead.

[Super Bleeder!!]

Good idea.

[User Name]

Yeah.

[wheelhop]

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.