Holset Turbos, PART 4

[We're on Boost]

Ok here's another weird housing question. Tim at Timsturbos says there is a BEP Steel, (not stainless) .55 ar turbine housing that is made with a T3 inlet and a DSM outlet! The only housings I see on the Bullseye list that were made with a T3 inlet and a DSM outlet were made for Garrett chras. Is there something weird going on here? Anybody know if there was ever a legit housing made this way for the HX35?
I'm looking at the pics for badman21's car and I can't tell what kind of turbine outlet he's got on his rig.

Gary

 

[420a-t]

I've heard of those too, hopefully it's not a typo.

 

[We're on Boost]

Yeah it was a bi*** to get the jhr manifold to bolt up to the hx52 I ended up studding one corner and bolting up the other 3 with lock-tite and lock washers. Def came out good though man

Did the bolt holes line up at least? Was the problem just getting at the bolts in the back with a wrench?
That JH manifold looks real good.

Gary

 

[doesitonall4rs]

Ok here's another weird housing question. Tim at Timsturbos says there is a BEP Steel, (not stainless) .55 ar turbine housing that is made with a T3 inlet and a DSM outlet! The only housings I see on the Bullseye list that were made with a T3 inlet and a DSM outlet were made for Garrett chras. Is there something weird going on here? Anybody know if there was ever a legit housing made this way for the HX35?
I'm looking at the pics for badman21's car and I can't tell what kind of turbine outlet he's got on his rig.

Gary

I just got my BEP bolt on housing last week, extremepsi had to directly order it from BEP, they told me that BEP just has a lot of td05 housings laying around that they just machine the opening on on a per need basis for the turbo that you need. mine fits absolutely fin, turbo bolted right in, no problems at all!

 

[GST95]

Are most of you guys just cutting off the v-band on the compressor housing and running a silicone 90 to you licp? I was thinking on getting a stock holset bend that the other half bolts to and welding it to my licp.

And what about oiling, what size lines, and from the head or filter housing do yous reccomend.

What are you guys doing?

Any info is much appreciated.

I think alot of people are trimming down the v-band lip a little. I left it alone so i could use it on my truck if i need to. I had a 3" coupler laying around and just slipped it over and clamped it down. I havent done a boost leak test on it, but i think its sealing. You might be able to get a 2.5" coupler to slip over it, but i didnt have one laying around. The holset bend that i have exits in 3". I wanted to be able to use it because it has an o-ring to make sure it doesnt leak. I didnt have room to use it because my licp goes towards the passenger side and there wasnt enough room for it. You might be able to use it if your licp goes toward the driver side though

For the oil feed, i went off the head. Mainly because thats where i was feeding my last turbo It didnt have any shaft play after 5 years, so i figured it was good enough. Im using a -4AN line. The housing is 12mmx1.5 with an o-ring, IIRC. Mine had an adaptor on it to inverted flare, but i couldnt find an adaptor to -4AN from that so i took it off.

 

[aero_sallee]

HE351VE on my diesel. So, my results won't help too much in comparison.

I've only got HE341s, HE351s and HE351VE's. HY35 and the HE341 are supposed to be identical, according to the Cummins contact. Based on posted info in the thread(s), the HE351's are simply later generation HX40's.

THe HE351VE has the same size compressor as the larger 7 Blade HX40, but the turbine wheel is smaller. I posted measurements of both wheels in one of the prior holset threads.

 

[We're on Boost]

I just got my BEP bolt on housing last week, extremepsi had to directly order it from BEP, they told me that BEP just has a lot of td05 housings laying around that they just machine the opening on on a per need basis for the turbo that you need. mine fits absolutely fin, turbo bolted right in, no problems at all!

Well that's interesting. Do you know if it's stainless steel or plain steel?
Can you look to see if there is a Bullseye part number stamped into the housing? I'd be interested in checking out the part number.

Gary

 

[JWoodley]

I think alot of people are trimming down the v-band lip a little. Im using a -4AN line.

I'm running a 2.5" vband from the compressor cover to my LICP.

I run -4an from the oil filter housing with a restrictor and Earl's inline filter. You don't want the Holset to see much more than 70psi of oil pressure.

 

[Slippi84]

Did the bolt holes line up at least? Was the problem just getting at the bolts in the back with a wrench?
That JH manifold looks real good.

Gary

No you have to open the holes up a bit. Nothing like really crazy but you have to bring them inward and I ended up using the internal hex head bolts because of how close it comes to the housing a regular bolt wouldn't turn. I studed one because even with the compressor side off you can't get to this bolt because it's on the exhaust side closest to the engine. A little cursing a dremell and the right bolts though you are good to go with a T4 manifold though.

 

[Slippi84]

Are most of you guys just cutting off the v-band on the compressor housing and running a silicone 90 to you licp? I was thinking on getting a stock holset bend that the other half bolts to and welding it to my licp.

And what about oiling, what size lines, and from the head or filter housing do yous reccomend.

What are you guys doing?

Any info is much appreciated.

Jason I'm gonna run a vband right there and utilize that. The less couplers teh better. I'm still not sure on the IC setup but I know i'll be going with wiggins clamps not couplers either way.

 

[D_Eclipse9916]

The ones, at least the one I got quoted, are stainless steel right from the mouth of David Hall at Bullseye. That is, I asked him for a bep bolt-on-housing for an hx35.

 

[D_Eclipse9916]

The ones, at least the one I got quoted, are stainless steel right from the mouth of David Hall at Bullseye. That is, I asked him for a bep bolt-on-housing for an hx35.

 

[doesitonall4rs]

When I took compressor housing off when i was clocking the turbo, i didn't notice a huge O-ring that goes around the compressor housing, similar to a 16G, ,td05, or td04 turbos. I was just wondering what was up with that? Are we just supposed to assume that metal to metal with a giant C clip seals air at 20, 30+ psi?

 

[GST95]

When I took compressor housing off when i was clocking the turbo, i didn't notice a huge O-ring that goes around the compressor housing, similar to a 16G, ,td05, or td04 turbos. I was just wondering what was up with that? Are we just supposed to assume that metal to metal with a giant C clip seals air at 20, 30+ psi?

I was concerned about this too. The Holsets with the v-band compressor cover has a big o-ring to seal the cover. At least my wh1c does. Neither of my my hx40s had any type of seal. One of them was new, so there isnt suppose to be one.

 

[doesitonall4rs]

I was concerned about this too. The Holsets with the v-band compressor cover has a big o-ring to seal the cover. At least my wh1c does. Neither of my my hx40s had any type of seal. One of them was new, so there isnt suppose to be one.

yea I downloaded a PDF from holset on how to rebuild the hx35 and hx40 and did not find that giant o-ring. I just cant understand how it can seal with just a giant C-clip, every turbo I have ever taken apart has had that huge O-ring around the compressor housing.

 

[Mike1992]

Clock it where you want it and put a thin coat of rtv around where an o-ring would be.

 

[b00stedtalon2]

Lol yeah man complete pain the ass.

Mocked up the exhaust and made a quick intake though.

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[projecTSI]

Ok here's another weird housing question. Tim at Timsturbos says there is a BEP Steel, (not stainless) .55 ar turbine housing that is made with a T3 inlet and a DSM outlet! The only housings I see on the Bullseye list that were made with a T3 inlet and a DSM outlet were made for Garrett chras. Is there something weird going on here? Anybody know if there was ever a legit housing made this way for the HX35?
I'm looking at the pics for badman21's car and I can't tell what kind of turbine outlet he's got on his rig.

Gary

Such a housing does exist, I know because I have one sitting in my basement!

 

[ihatedsms]

How will a divided t4 19cm hx40 housing spool? Is that too big and will be laggy?

 

[Slippi84]

How will a divided t4 19cm hx40 housing spool? Is that too big and will be laggy?

It depends on what kinda car your trying to build. I your not worried about lag and want a fast strip weekend car then it's perfect but if you plan on driving it on the street a good amount like even as a weekend warrior I think the t3 .70ar housing would be better. Now I know you want to run your t4 manifold so maybe in your case you should get like a .84 t4 garret housing cut to fit the hx40. That would probably be ideal for you.

 

[Slippi84]

Such a housing does exist, I know because I have one sitting in my basement!

Wrong not only does it exsist I have seen it and almost ran it on my car look on his site it should still be there. They are hard to find but exsist.

 

[dsm-onster]

How will a divided t4 19cm hx40 housing spool? Is that too big and will be laggy?

It will also depend on whether or not you run a divided runner manifold like just previously pictured. No one has run a housing that large on this site. TimG HAS run a much smaller 12cm housing with an open header design and his setup was logged achieving full boost about 400rpms after mine (h1c which is VERY close in spool to the hx35). . . Of course, his hotside has proven to have enough flow for a 600whp trap speed too with a compressor upgrade.

So you can expect a 12cm housing with a regular nondivided t3 manifold tubular or not to spool a 12cm housing hx35 or hx40 at about 400rpms later than the bep housing. The hx40 super40 (less than 8 blades on the compressor) reaches full boost at about 4100rpms with the typical supporting setup in the .55a/r housing. If you cut a 12cm housing to fit the hx40 and put it under a non divided manifold, I would expect to see spool by 4500rpms (400rpms later) and of course alot more flow. A 19cm housing is quite larger and I would imagine the spool would be much later.

BUT, if you get a divided runner manifold, I don't see why there would be any problem spooling the hx40 at an rpm between 4-4.5k. A twinscroll turbo using the twinscroll design properly is very different than a single scroll. Large numbers don't correspond with laggy spool. I wish someone would try it . I'll be trying it, but not until I push the limit of the h1c in the bolton housing these upcoming months.

 

[ihatedsms]

It will also depend on whether or not you run a divided runner manifold like just previously pictured. No one has run a housing that large on this site. TimG HAS run a much smaller 12cm housing with an open header design and his setup was logged achieving full boost about 400rpms after mine (h1c which is VERY close in spool to the hx35). . . Of course, his hotside has proven to have enough flow for a 600whp trap speed too with a compressor upgrade.

So you can expect a 12cm housing with a regular nondivided t3 manifold tubular or not to spool a 12cm housing hx35 or hx40 at about 400rpms later than the bep housing. The hx40 super40 (less than 8 blades on the compressor) reaches full boost at about 4100rpms with the typical supporting setup in the .55a/r housing. If you cut a 12cm housing to fit the hx40 and put it under a non divided manifold, I would expect to see spool by 4500rpms (400rpms later) and of course alot more flow. A 19cm housing is quite larger and I would imagine the spool would be much later.

BUT, if you get a divided runner manifold, I don't see why there would be any problem spooling the hx40 at an rpm between 4-4.5k. A twinscroll turbo using the twinscroll design properly is very different than a single scroll. Large numbers don't correspond with laggy spool. I wish someone would try it . I'll be trying it, but not until I push the limit of the h1c in the bolton housing these upcoming months.

Hmm intresting, Now do you think with a T4 non-divided manifold with the T4 divided 19cm housing will spool at least by 5k? That wouldnt be too bad for me.
Im worryed about spool by its not my main concern, the car will be mostly track car and not really street driven. The most boost it will see right now is 32psi.

If worst comes to worst im going to sell my t4 mani and get a turbonetics t3 replica and a BEP T3. housing. OR maybe keep my t4 maniold get a t4 to t3 adapter flange then run the BEp t3 70 ar housing.

 

[ihatedsms]

What will be my spool on a divided sink????

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Anyway thanks for all the info, i appreciate it. I didnt mean to come off like a brick my first few post. Dont worry tho, soon i will be representing for the holsets hopefully putting down some mid to low 10 second passes in a 2500lbs awd full drag radial, track car..

 

[GST95]

Hmm intresting, Now do you think with a T4 non-divided manifold with the T4 divided 19cm housing will spool at least by 5k? That wouldnt be too bad for me.
Im worryed about spool by its not my main concern, the car will be mostly track car and not really street driven. The most boost it will see right now is 32psi.

If worst comes to worst im going to sell my t4 mani and get a turbonetics t3 replica and a BEP T3. housing. OR maybe keep my t4 maniold get a t4 to t3 adapter flange then run the BEp t3 70 ar housing.

I have a 7 blade hx40 with a T3 divided 18cm housing that i will be trying with a T3 non-divided header. I dont think ill have time to put it on this weekend, but hopefully by next it will be on. Id be happy with 5k spool as well. My previous scm6031 wouldnt hit full boost until 4500rpm, so an exra 500rpm would be fine with me.