HX40W, WH1E on a tow rig

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HX40W, WH1E on a tow rig

Postby stillsmokin » Thu May 05, 2016 3:12 pm

I'm going to share what I have recently learned and gather from other peoples experiences. Back in the day when I was modding a street truck (2004) there weren't many HX40 or WH1E turbos laying around, HX35's weren't easy to find, and S300s were out of reach cost wise. FWIW, please do not bring the S300 into this discussion, as a sled puller I can tell you just how many engineering flaws that turbo has vs the merits of the turbine shaft. I've seen just as many of those blown up as anything else. This is more of a mild build discussion.

I recently acquired a quantity of new holset turbos to play around with. A few local first gen guys have been experimenting with new WH1E (early versions of the HX40) turbos on stock or near stock first gens. We swapped out a WH1C/16 for a WH1E/16 the 16 housing had its exducer machined by a local shop. The WH1E has 2mm additional inducer over the WH1C, the turbine is larger of course.

Test mule 1 was a stock 93 D250 5 speed, it spooled the larger charger pretty much the same as the WH1C. Boost was 1psi lower, possibly due to the larger free flowing turbine, which almost fits in the housing as is. Exhaust sound is slightly different, and acceleration vastly improved 35mph+. He doesn't have a pyro yet so egt numbers are not yet known but we estimate 200-300 lower with the WH1E. Peak boost was 19 psi for the WH1E and 20 for the WH1C, test was done unloaded.

Test mule 2 was a 92 W250 it has very minor mods and 4" exhaust, ill have to get the particulars. The stock H1C/21 lagmaster was swapped out for the same turbo in test 1. Boost peaked at 28psi pulling a trailer heavily loaded. Not really a fair comparison but, again a gain.

FWIW, I currently run a HX35/40W 60x86mm 6 blade/12 on my W350 with a 3200 GSK, Denny T 2 pin, and 4'' exhaust and about 1 turn of fuel. It spools easily, I open the gate at 30 psi, I can run 80 mph with my gooseneck fully loaded with ease if I want. It runs very well. It burns clean if you drive normal. With a 30" muffler all the farmers at the co-op stare as it walks right out of town and down the highway with a fully loaded gooseneck trailer. I see 1250F pre turbo on the pyro if I'm accelerating on a good grade at 65 mph heavily loaded.

What we have learned is the holset 12-16cm exhaust housing wastes alot of energy by allowing exhaust flow to bypass the turbine. We have also decided the VE engines really need more air. In the past pouring fuel in was the solution for more power, it's just $$$ out your tailpipe if you go that route.

My question is reliability of the WH1E and HX40 on a first gen. I know lots of people have broke the shafts on newer heavily modded trucks. Most of which are too hot for an HX40 or WH1E anyway. On a first gen lots of things live that a P7100 truck destroys. I think they may be a better tow charger than anything. I want to build an HX40W/12 with a KTS 60x86 mm billet wheel just to try. The idea is to get the exhaust out of the motor to gain a little more power and mileage, if it can be done reliably is the question.
92 W250LE REG CAB, SLED PULLER, S400
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Re: HX40W, WH1E on a tow rig

Postby Philip » Fri May 06, 2016 5:27 am

I have one of the 7 blade super 40's on my truck. Its been on for 10 years or so. I have not had any problems with it. On the last oil change it was still showing no wear in the bushings. I have bigger injectors with stock fuel settings and a 3200 spring. Boost tops out between 28 and 30 PSI.

It tows very well. I have been into the 24K range GVCW. This pic was scaled at 24,200 with two people in the truck.


Image
93 W350 Club/cab w/duals, buckets & console, B&W flatbed, G56, 6 spd, 3:07 rears, gages, HX40/16, 4" exhaust, 6X.018 sticks, rear air ride suspension
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Re: HX40W, WH1E on a tow rig

Postby spencerdiesel » Sun May 08, 2016 2:27 pm

Would love to hear more on this.

Philip how clean are those firehoses at low throttle?
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Re: HX40W, WH1E on a tow rig

Postby stillsmokin » Tue May 10, 2016 9:48 am

Philip wrote:I have one of the 7 blade super 40's on my truck. Its been on for 10 years or so. I have not had any problems with it. On the last oil change it was still showing no wear in the bushings. I have bigger injectors with stock fuel settings and a 3200 spring. Boost tops out between 28 and 30 PSI.

It tows very well. I have been into the 24K range GVCW. This pic was scaled at 24,200 with two people in the truck.


Image


I knew you were running a super 40 Phillip, you have gotten away with it for quite a long time.

All the HX40 and WH1E turbos I have are standard issue 12 blade turbines. I recently machined several 12cm gated exhaust housings for the 40 turbine and plan to put together a 60x86 7 blade billet wheel version on a truck with a lot smaller injectors, they may be stock injectors to begin with.
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Re: HX40W, WH1E on a tow rig

Postby CumminsPower59 » Tue May 10, 2016 10:16 am

I have a newer oddball HX40 on my pile, same wheels and specs as the older Super 40's, just a different compressor housing. It has the elongated inlet with sensors on it. I've beat on it pretty hard, accidentally barked it a few times at first, but I have adjusted my driving style to suit. It has seen over 1600 degrees and 45 psi. I have it dialed back to 40 psi now.
Ike

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Re: HX40W, WH1E on a tow rig

Postby Philip » Tue May 10, 2016 8:00 pm

My pump is running stock fuel settings. So smoke isn't bad. I have been seeing more for about a year now. These injector have 10 or so years on them now. I probably should pull them and get the pop pressures reset.

I don't beat on it and the boost levels I run isn't enough to bark the newer 40's. For what I do and the uses of the truck it has been a good turbo. Before this I went threw the stock H1C, a replacement H1C. Then a HX35. The 40 is still tight as the days I installed it many years ago.
93 W350 Club/cab w/duals, buckets & console, B&W flatbed, G56, 6 spd, 3:07 rears, gages, HX40/16, 4" exhaust, 6X.018 sticks, rear air ride suspension
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Re: HX40W, WH1E on a tow rig

Postby stillsmokin » Thu May 12, 2016 11:37 am

I'm hoping the 12cm gated housing will improve the low end spool and keep the shaft speed up on a mildly fueled truck. Hopefully, it will not bark much that way. Gating it at 30psi.
92 W250LE REG CAB, SLED PULLER, S400
93 W350LE EXT CAB, dually, 5 speed
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Re: HX40W, WH1E on a tow rig

Postby DMan1198 » Thu May 12, 2016 7:33 pm

If my 1st gen actually had a trailer hitch I feel like my little compound setup would tow very well. Though some of the parts certainly aren't cheap (S467fmw, and the steed speed primarily) I still want to go to a pair of sx-e bws though. I feel like they'll suit my goals better, and the dual puck internal gated housing is a much more appealing option than what's offered by holset.
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Re: HX40W, WH1E on a tow rig

Postby ellis93 » Fri May 13, 2016 7:22 pm

I'd like to know what needs to be machined in a 12cm housing for the 40s turbine to fit. I have an idea but would like an actual account of it.
93 D250 ,5 speed,4.11s,k&n autometer tach pyro trans boost guages,GDS 60mm h1c 14cm,honed 5x10,hplp/reg,1/8 timing,M+H M2 fuel pin, tims cooler tubz
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Re: HX40W, WH1E on a tow rig

Postby stillsmokin » Mon May 23, 2016 10:38 am

ellis93 wrote:I'd like to know what needs to be machined in a 12cm housing for the 40s turbine to fit. I have an idea but would like an actual account of it.


It depends on which turbine you use, there are 3 different turbine profiles if I remember correctly. The standard 40 turbine required the minor diameter to be opened up a touch and the profile needs minor adjustment. On 12 and 14cm housings the exhaust bore is unchanged but, 16's need bored clear through.
92 W250LE REG CAB, SLED PULLER, S400
93 W350LE EXT CAB, dually, 5 speed
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Re: HX40W, WH1E on a tow rig

Postby ellis93 » Mon May 23, 2016 11:00 am

stillsmokin wrote:
ellis93 wrote:I'd like to know what needs to be machined in a 12cm housing for the 40s turbine to fit. I have an idea but would like an actual account of it.


It depends on which turbine you use, there are 3 different turbine profiles if I remember correctly. The standard 40 turbine required the minor diameter to be opened up a touch and the profile needs minor adjustment. On 12 and 14cm housings the exhaust bore is unchanged but, 16's need bored clear through.

More than likely a 12cm will be used.

Soon I hope to be fitting one as my hybrid on the dodge is turning loose of its oil. Slight throttle has me leaving a blue streak behind me at times. I don't have confirmation of that,just a sneaky suspicion. Plus the oil pressure has been acting funny as well.
93 D250 ,5 speed,4.11s,k&n autometer tach pyro trans boost guages,GDS 60mm h1c 14cm,honed 5x10,hplp/reg,1/8 timing,M+H M2 fuel pin, tims cooler tubz
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