Holset Turbos, PART 5

[gixrman]

Found this cool video. It's a good one for anybody who is thinking about getting a turbine housing machined to fit a different wheel. If the wheel is completely different it's not just a matter of boring out the turbine outlet to fit the exducer size of the new wheel. Looks to me like they machine the whole interior surface of the housing to a just-right contour for the new wheel. In this vid they show mostly the compressor housing being machined but I think the same thing would have to apply to the turbine housing. Found this on evom.

Well I did it to fit my H1E into a T3 16cm housing. I took it to a local machine shop and he basicly did the same thing as in the video. Honestly I cant say if I f-ed it up or not since I have'nt had the chance to run the car yet with the new setup.

 

[95tzlgst]

Exactly. Look at the holset results thread. You can see there is one with the stock hx35 hotside (stock turbine housing) who has seen 600whp trap speeds. So the stock hx35 hotside with a non-divided header is enough flow for 600whp. I'd venture to guess (bench race) that a t3 bep .70 a/r housing is close to the same flow as a stock holset 12cm^2 housing bacause it looks to be close to the same flow and has similar traits (similar voulme centered volute, t3 inlet, vband outlet). With an hx40, the .70 a/r housing spools about 400rpms slower than a bolton housing. A few posts down in the results thread you see the 7blade hx35 flows enough for 60lb/min. This should be good for 580ish whp on a decent setup. 4g63 motors consistantly show better than 10.5hp per lb/min.

There are 2different hx35 compressors a 52lb/min and a 60lb/min. It's pretty clear that one with the 60lb/min wheel and the proper turbine housing can flow enough for much more than what Jason Morrows setup did. But the lag of such an hx35 with a stock housing or .70 a/r bep housing is close to the lag of an hx40. Of course this is all bench racing. It would be nice for someone to prove that the hx35 can spool to full boost by say 3800rpms with the .70a/r housing and prove that it is enough turbine to push the limit of the 60lb/min hx35 compressor. Basically this would be a 60-1 turbo with the spool speed of a td06 20G and much better high boost efficiency than a gt35r.

Im in the process of peicing my kit together. I think by january ill have everything I need.

 

[dsm-onster]

Interex, here are the dimensions for some garrett flanges. The t4 flange comes out to: 82.5mm X 70mm. And the t6 flange comes out to 112mm X 70mm. So the h2e appears to have a flange that is close to the size of a t4 which is what the hx52 has, a flange that is close to the size of a t4.

Is the inlet divided? What is the size of the housing? It should be right under the flange cast into the housing surface on the outlet side or, if it's a floating charger (no wastegate), it should be right after the word holset on the turbine housing on the outlet side.

This is a 60mm compressor inducer. The hx40 60mm compressor shows about 68lb/min at the edge of the map. This is the only h2e compressor map that I have and shows about the same flow at the edge of the map:

ASSuming this above map is for your compressor, choke flow can occur as high as 3.5PR (37psi) and peak PR (51psi) is at 50lb/min. Both of these numbers are better than the hx40 pro compressor wheel, so this looks to be like an hx40 compressor wheel with SLIGHTLY more flow and quite a bit more high boost efficiency. . . As if you need more efficiency than the hx40 pro wheel, which has still over 70% efficiency at 63lb/min and over 35psi. Choke flow can occur as high as 25psi . The higher boost choke flow will allow you to more easily maxout the compressor on a 2.0L motor instead of overreving it before it gets to the farthest point right on the compressor map. . . I really interested in the turbine wheel specs. I wonder if it has the same dimensions as the hx52 turbine wheel. It would be interesting if we could get this compressor wheel mated to an hx40 turbine or an h1e turbine.

 

[Slippi84]

Is this a h2c we're talking about or some other H2 ? Sounds like a very good turbo but just curious how spool would be with a t4 like hotside. I have talked to boosted and the hx52 will suprise people how fast it spools.

 

[aero_sallee]

Since we are talking about flange measurements here are the measurements of the non standard flange on the HE351VE.

Sorry for the shitty drawing.

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[interex]

It does have a divided inlet. I'll get a picture of it in a little bit.
Also, the hotside has 6 bolts holding it on, unlike the cold side with the vband and those bolts are tight...

A rough measurement of the Turbine wheel exducer is 70mm or 72mm. I used my mic down in the housing and just roughly came up with that. I'll know better once I get it off.

On the hotside it says "HOLSET" "9M1A" "17 210" "352921G" That's all I see on the entire thing.
On the tag riveted to the cold side it says:

ASSY: 3528639
Serial: A 2043337
Type: H2E

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[xi Talon ix]

i just got done cleaning my hx35 up. bead blasted the compressor housing and polished the inlet. this is the 7 blade 35 that im gonna try and break the BEP housing hp record with.

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[xi Talon ix]

this is what the turbo looked like before

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[JusMX141]

Since everyone's posting up their Holset pics, I have to jump in.

Here's the HX35 I just rebuilt (tonight) for ChrisB33, from start to finish....


When I got the turbo, there was a nasty translucent brown paint on the compressor cover. I stripped the color off before I ever took starting pics as it was ugly as sin:

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Here's the monster next to a Small 16G:

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For visual comparison, this is the HX35 (right) next to a HX40 (left) that I bought cheap for parts:

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HX40 (left) versus HX35 (right), compressor covers removed:

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Here's the HX35 compressor wheel (right) compared to a Garrett 50 trim compressor (left)....the HX35 wheel looks like a "50-1"!

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Genuine Holset parts kit. I don't play games.

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THE FINISHED PRODUCT!

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[chrisb33]

Whoa!!!!

Thats my turbo! whooohoooo! wonderful, wonderful!

I cant seem to upload the "before" pic so that i can show everyone what Justin meant by "ugly as sin!"

thanks justin!!!!

chris b

 

[JusMX141]

No problem, bud.

I'm not done cleaning up the compressor cover yet, and before everything is tightened down I want to actually bolt the turbo to a manifold and mount it on my AWD to make sure everything lines up (oil drain and compressor discharge). I also have to mow down the v-band fitting on the compressor outlet a little so a rubber coupler can slide over it, but the hard part's done!

I left the old wastegate mounting tabs on the compressor cover in case you wanted to mount your boost controller to it or something. I saw a clever setup at the track one time where a guy had his MBC mounted right to the turbo with about 2" of hose going to the compressor fitting and 8" going to over to his wastegate on the o2 housing. It looked really clean, and I'll bet it had ZERO delay in controlling boost!

 

[GORBS88]

Dyno booked for Monday the 24th 9 A.M. 600 or BUST!!!!

 

[interex]

I know one thing, I can not get the turbine housing off of my H2E. WTF

Edit: Found another H2E on ebay... eBay Motors: Holset Turbo H2E with a 17cm turbine housing (item 270303170666 end time Nov-21-08 16:01:54 PST)

 

[dsm-onster]

Use a sledge like Maglin . Holsets are known to be devilish about removing their turbine housings. I used a pry bar and a small block of steal inbetween the housings. I pried on diametrically opposed sides a little at a time, so as not to damage the wheels or the shaft.

 

[interex]

Matt, did you read what I said on Post 81?

http://www.dsmtuners.com/forums/151671942-post81.html

 

[chrisb33]

No problem, bud.

I'm not done cleaning up the compressor cover yet, and before everything is tightened down I want to actually bolt the turbo to a manifold and mount it on my AWD to make sure everything lines up (oil drain and compressor discharge). I also have to mow down the v-band fitting on the compressor outlet a little so a rubber coupler can slide over it, but the hard part's done!

I left the old wastegate mounting tabs on the compressor cover in case you wanted to mount your boost controller to it or something. I saw a clever setup at the track one time where a guy had his MBC mounted right to the turbo with about 2" of hose going to the compressor fitting and 8" going to over to his wastegate on the o2 housing. It looked really clean, and I'll bet it had ZERO delay in controlling boost!

Thanks justin, take your time Yeah the wastegate mounting seems like a cool idea to mount my MBC on. I'll see how it goes when the turbo reaches me hope it's not going to be too hot to be touched when i need to adjust it!

chris b

 

[dsm-onster]

Matt, did you read what I said on Post 81?

http://www.dsmtuners.com/forums/151671942-post81.html

Yea. It appears you have a 17cm^2 housing. I don't know how the housing sizes go for the hx5*/H2C size.

 

[need2boostpsi]

ok guys so i just bought my holset on eBay from what im seeing its a 7-blade, anyone want to confirm this turbo or tell me if i got a good deal on it?eBay Motors: Holset Hx 35 Turbocharger , Turbo Cummins L@@K (item 270304157518 end time Nov-16-08 16:18:30 PST)

 

[interex]

I'm lost as to what that means... I was told it was 22cm housing but I might be wrong. Remember this is a H2E, which is suppose to be equal to the HX50.

Not much info around about the H2E. I know one thing the exhaust flange on it is really really big, so I'm guessing I'll need a different manifold, or turbine housing. :/

 

[bluegs03]

hey guys i stumbled across this gem on ebay, im thinking its a HX40 pro? the 60mm inducer wheel is a pro model right?
eBay Motors: Holset Cummings Diesel Turbocharger - Garrett (item 110311619735 end time Nov-17-08 10:43:57 PST)

 

[interex]

That is an H2C.

 

[need2boostpsi]

hey guys i stumbled across this gem on ebay, im thinking its a HX40 pro? the 60mm inducer wheel is a pro model right?
eBay Motors: Holset Cummings Diesel Turbocharger - Garrett (item 110311619735 end time Nov-17-08 10:43:57 PST)

if your interested in that turbo i would delete that link or ever member looking for a decently priced turbo will be on it.

 

[b00stedtalon2]

here's a little start up video on my hx52 build.

[youtube]JD7GuGtsY3U[/youtube]

 

[bluegs03]

i thought about that but if its an H2C im not interested.

 

[bluegs03]

That is an H2C.

What is telling you that it is an H2C, in fact what is an H2C, i did a google search and i know its a big sucker? but thats it. The info at the top of this thread only talks about H1C, which is basically a hx35.