Holset Turbos, PART 5

[kraka]

After joining into these threads during Part II or III, I finally bit the bullet!

I just bought a low mile HX40 with the BEP bolt on housing for $500 off the link forums. My car is 250 miles away at home, while I'm here at school, but it was a great deal so I had to do it.

Oh, and setup wise, I will be running it with my freshly rebuilt 6 bolt w/ ARP's, FP1/2 cams, Dsmlink, PTE 880's, E3 Exhaust manifold, FP 4" Intake, 2g MAF, 3" Buschur TBE, ETS Street FMIC and blah blah blah.


I still have to buy a 2.5" Tubular o2 housing for a 38mm EWG. I should be able to use my current -4an feed (pte/garrett fitting) and -10an Return with the Holset, right?

 

[We're on Boost]

Small update for people, I am going to try and run the HX35 with a megan T3 header and see what it does.

Hey, if you try the Megan header I'd be interested in hearing how well the ports match at the cyl head, or any other fit problems.

Gary

 

[Iroc_g]

After joining into these threads during Part II or III, I finally bit the bullet!

I just bought a low mile HX40 with the BEP bolt on housing for $500 off the link forums. My car is 250 miles away at home, while I'm here at school, but it was a great deal so I had to do it.

Oh, and setup wise, I will be running it with my freshly rebuilt 6 bolt w/ ARP's, FP1/2 cams, Dsmlink, PTE 880's, E3 Exhaust manifold, FP 4" Intake, 2g MAF, 3" Buschur TBE, ETS Street FMIC and blah blah blah.


I still have to buy a 2.5" Tubular o2 housing for a 38mm EWG. I should be able to use my current -4an feed (pte/garrett fitting) and -10an Return with the Holset, right?

Damn! I was going to buy that! I was just on the link forums and saw it sold!
Glad it's going to a member here though. I was a little worried about buying one used, but hopefully you will have no issues.

Let us know how it looks when you get it.

 

[b00stedtalon2]

Anyone interested in trading there HX40 with T4 housing for a 52? I don't have the funds to see this turbo's potential.

 

[Slippi84]

Anyone interested in trading there HX40 with T4 housing for a 52? I don't have the funds to see this turbo's potential.

It will cost you just as much to run a hx40 man. Think about it you will still need bigger injectors, cams, smim, better trans ect.

 

[toofast82]

Kraka , u should be good with those oil lines, i would definitely oil it from the filter housing. I went through a holset pretty fast ### i oiled it from head. Those turbos should outlast ## car if oiled properly. but they do take a garret return but i forget the thread on oil inlet, may just need like 1 fitting. possibly a restrictor in the line too?

 

[kraka]

Damn! I was going to buy that! I was just on the link forums and saw it sold!
Glad it's going to a member here though. I was a little worried about buying one used, but hopefully you will have no issues.

Let us know how it looks when you get it.

Yeah, he wanted more but I told him I would take it off his hands right away for a lower price. Buying a used turbo is scary, but most people buy the holset's off ebay from high mileage Diesel's and still have zero issues with reliability and performance.

Three questions guys:

1. Will I need a restrictor on my Feed from the OFH, like mentioned above? I've already had the relief valve ported, I saw a max of 80-85psi at WOT.

2. What will I do for boost control? There does not appear to be a boost source on the compressor housing? Will I need to tap one?

3. Is there any chance this turbo has a 60mm wheel? It's an 8-wheel compressor, but the previous owner claimed its a 60mm, which I thought only appeared on the 6-wheel 'PRO' units?

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[dsm-onster]

Andy4g63 has an H1E with a 60mm 8blade wheel. You'll have to measure.

 

[GST95]

I should be able to use my current -4an feed (pte/garrett fitting) and -10an Return with the Holset, right?

I believe the feed adaptor you will need is 12mmx1.5 to -4an with an o-ring or one of those washers with a rubber seal. I can check for sure on the size this weekend unless somebody else can verify it.

 

[VETTE_50_TH]

1. Will I need a restrictor on my Feed from the OFH, like mentioned above? I've already had the relief valve ported, I saw a max of 80-85psi at WOT.

2. What will I do for boost control? There does not appear to be a boost source on the compressor housing? Will I need to tap one?

3. Is there any chance this turbo has a 60mm wheel? It's an 8-wheel compressor, but the previous owner claimed its a 60mm, which I thought only appeared on the 6-wheel 'PRO' units?

1. That still seems kinda high to be going to the turbo. Might need some other input. If its off the head, you don't need one.

2. Tap right before the TB. Best place to do it. Any vacuum leaks of anything else will be taking care of if its right before on on the intake manifold itself.

3. Dunno.

James

 

[Iroc_g]

Well, I too have joined the movement! I bought a 7blade hx40 today! I decided to go brand new, just to be safe.

I believe this has a 18cm housing, but I have been planning on going bep, so no big deal. I am just debating on if I should get a new manifold with a wastegate provision, or run my evo3 manifold and do a wastegate off of the o2 housing. Either way, I'm going to recirculate it though. Any input welcome.

 

[VETTE_50_TH]

Speaking of manifolds. Is it possible to get the TIAL manifolds to works with these turbos. I really want a V-Band but i dont think it will work.

James

 

[kraka]

I believe the feed adaptor you will need is 12mmx1.5 to -4an with an o-ring or one of those washers with a rubber seal. I can check for sure on the size this weekend unless somebody else can verify it.

EDIT: What do you know, re-reading all of the recommended threads actually teaches you a thing or two about these turbo's

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I found the adapter on ExPsi, however, I've never used a feed adapter with an o-ring?

Vette, are you saying I WILL have to tap a new boost source somewhere in my piping? I know that I can always tap into the BOV line, but that's obviously not the best option.

EDIT: More reading
--------------------------------

Ok, looks like Holset's DO require a restrictor for DSM's without B/S, even with Relief valve porting. Unfortunately, I still can't figure out what the correct size restrictor would be. I've seen 0.80 and above being mentioned, but no definitive answer on where to find them (besides the DIY option).

Any advice experts?

 

[1gDSM4g63]

Speaking of manifolds. Is it possible to get the TIAL manifolds to works with these turbos. I really want a V-Band but i dont think it will work.

James

Tial doesn't make manifolds and what turbo housing are we talking about here?

 

[GST95]

EDIT: What do you know, re-reading all of the recommended threads actually teaches you a thing or two about these turbo's

--------------

I found the adapter on ExPsi, however, I've never used a feed adapter with an o-ring?

Vette, are you saying I WILL have to tap a new boost source somewhere in my piping? I know that I can always tap into the BOV line, but that's obviously not the best option.

EDIT: More reading
--------------------------------

Ok, looks like Holset's DO require a restrictor for DSM's without B/S, even with Relief valve porting. Unfortunately, I still can't figure out what the correct size restrictor would be. I've seen 0.80 and above being mentioned, but no definitive answer on where to find them (besides the DIY option).

Any advice experts?

You just need to have something between the turbo and the fitting to seal. o-ring, gasket washer, crush washer, whatever works.

Do not tap into your BOV line. The port on the top of your bov uses boost to push the valve closed against the boost that is trying to push the valve open. If you have a vent in your boost controller, it will lower the pressure in the line and cause your BOV to leak at a lower boost level then it would normally.

Your source can be anywhere between the compressor and the TB. I favor having a port on the compressor cover because it allows you to keep your hoses short and reduces spikes. Its also an easy place to add a port if you need to.

 

[turbodsm18]

Does anybody happen to know where to get replacement CHRA's for Holsets......I looked everywhere online and cant seem to find anything.......?

-Kevin-

 

[delta448]

No disrespect at all but, am I missing something?
Why wouldn't you just buy a kit and rebuild it?
It's not like a Garrett BB where you have to replace the entire CHRA. PM jusmx141, he rebuilds turbos. I'm sure he'd at least point you in the right direction.

 

[Slippi84]

Tial doesn't make manifolds and what turbo housing are we talking about here?

He's talking about the turbine housing that hooks up using a Vband hook up very sweet looking. I"ll try and find a picture and post it



edit: here you go

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[turbodsm18]

Am I missing something?
Why wouldn't you just buy a kit and rebuild it?
It's not like a Garrett BB where you have to replace the entire CHRA. PM jusmx141, he rebuilds turbos. I'm sure he'd at least point you in the right direction.

well, when the shaft gets eaten up and you need oversized bearings it gets expensive, hence why not just buy the whole chra.....

-Kevin-

 

[Mike1992]

Kevins, just looking out for me. I called a few local places today and was quoted $450-550 to have my HX-40 rebuilt. Certainly a bummer~!

 

[delta448]

Ouch! That sucks, maybe it'd be easier to buy another used one and just rebuild/parts-swap that? Sorry to hear about the bad luck, I hope you get it together again soon. Looking forward to seeing what your results are with your setup Mike.

 

[Slippi84]

Kevins, just looking out for me. I called a few local places today and was quoted $450-550 to have my HX-40 rebuilt. Certainly a bummer~!

How were your blades? That is too high unless they are replacing the compressor wheel and in that case it's really cheap

 

[dsm-onster]

Contact Justin: jusmx141 first. It's worth getting a quote. He may be able to get you the parts you need and rebuild it for quite a bit less. It's worth a shot. He knows what he's doing, and is fast and affordable from what I've seen.

 

[Mike1992]

How were your blades? That is too high unless they are replacing the compressor wheel and in that case it's really cheap

The compressor blades look fine. I think I caught it just in time. Nothing is bent from what I can see, but then again I'm not a turbo rebuilder. As of now I'm using Kevins HX-40 CHRA in my compressor cover/turbine housing and its boosting just fine.

Contact Justin: jusmx141 first. It's worth getting a quote. He may be able to get you the parts you need and rebuild it for quite a bit less. It's worth a shot. He knows what he's doing, and is fast and affordable from what I've seen.

I'll shoot him a pm, thanks for the info~!

 

[Wicked95AWD]

Sorry to hear about your turbo Mike. Speaking of bad Holset rebuilds, the rebuilt super HX40 i bought recently off of Ebay has a problem. I had it shipped directly to the shop that is tuning my car and they immediatley contacted me saying the turbo makes noise when you spin it, almost as if one of the blades is hitting or grinding on something inside. The owner of the shop took the turbo to a local turbo rebuilder who suggested I ship the turbo back immediatley because it has a problem. I contaced the seller/rebuilder and he asked me to clock the turbo to the exact position I want it on the car and ship it back to him and he will fix it and return it promptly. The shop said the box was packed well and didn't appear to be damaged in shipping. Any idea what might cause a newly rebuilt holset to do this?