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JRE tests the HX40/16cm2 wastegated

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Anyone using larger then HX40 turbo?

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great review ted , looks like i may have one in my future , was the 99 a 2500 or a 3500 and what speed did you get to on the MOUNTAIN , (just a side note i have not been able to remove the VA since i installed the 275 injectors , and my convertor is not happy about it . #ad
) how do you think that combo on the isb would be with a set of DD 3's ? looking forward to the get together down there , i may pop in on my way to etown , if i leave home early enough .
 
In my little red Ram the power shifted to 4th from 3rd. This is when the boost hits. I am at 48 pounds with the gate set at 45. When it hits boost the rear end lets go! I was having big fun flat tracking my truck on the surface streets around Cummins West on Saturday #ad
#ad
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I was leaving long dual black rubber marks upon exiting the corners in 3rd.
Hot rod diesel is NOT an oxy moron!! #ad
 
Ted- thank you! Good info.

What would be your prediction for towing EGT with this turbo for 24v engines? At 'normal' speeds (70?) will the HX40 be higher or lower than stock; or the 35-14?

I admit to being one of the HP junkies; but the truck still needs to tow.

Thanks- Mike

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'00 3500 QC, 6x6, auto, 3. 54LS, Isspro gauges, TST injectors, 4 wire Blue Box, 3" Walker muffler, BD low stall TC, valve body, PressureLoc.
 
Hey MM how you doing?
The Ram was a 2500 quad cab short bed 4x4 auto 4. 10,
It went 105 mph 3/4 of the way up, had to let off, running up someones back door.
I am sorry I don't have any experience with the DDIII's, but they should work fine.
Are we flattening the turbine fins in the converter? raising the stall speed?
Look forward to having you stop by.

Hello Mike, Nothing will have lower EGT than the stock turbo at 2000 rpm towing, nor will any turbo beat the stock one Towing, It has the highest average boost, and best response, and highest torque, under those situations.

The EGT are about 200-300 higher than the stock turbo Towing, because your not using max fuel during tow situations, but naturally lower EGT at max fueling,

Keep in mind this turbo is sized for a larger engines at low rpm, or a small one at higher rpms, this is why I suggested a 4. 10 axle ratio.
Higher average operating rpms can make better use of the HX40 turbo.

Under full throttle high HP there is no match for the HX40 as of yet.

But you have to ask yourself a question, how often do you do that unless your HVAC.

Hello Doc,
Twin turbo's have been done already with good results, The Gentelman who owns Fuel Preporalator Company, has this set up on his truck, but He doesn't have anything to shut down the small turbo,
The exhuast gasses must pass through both turbos, first the big one, then the small one, that way a good portion of the heat energy is used in the big turbo, then the small turbo, this keeps EGT down.
The compressor housings will be the other way around, first the small one then the big one, The small one will feed the big one so response is totally and completely there, at any speed or fueling.

Ted Jannetty

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Ted Jannetty, Owner President Jannetty Racing Enterprises Inc.
97 3500 4x4 club cab 5spd. RED, JRE stage 3 power kit, JRE 4" exhaust
JRE 1/2 inch fuel system, Cummins 370 hp injectors, Prime loc,
Cummins chrome kit, US Gear 20% over drive, 3. 54 posi, Autometer
gauges, boost, and Pyrometer, BD exhaust brake.
97 Ski-Doo 670 turbocharged
99 Honda Forman 450 ES
 
I think Ted's experience is based on the extra boost from the 12 cm2 housing with moderately fueled engines. If you tow here in the west where the mountains are steep and have an engine with "earnest" fueling, you can (and I have seen) 1500+ deg egt at 2000 rpm pulling a trailer up the mountain. In these situations, the HX40 can make a major difference and pull the egt down.
Sure, total boost may be lower than with a small housing. However, when your engine is pumping enough to need a bigger exhaust outlet than that of a 1-5/8" OD pipe (the equivalent of the 12 cm2 housing), then the bigger housing can help cut egt by reducing exhaust restriction. The 18. 5 cm2 housing is like a 2" OD pipe, still not very big and you should make plenty of boost to keep the egts down if your engine is fueled enough that the HX40 is worth considering.
AT times you will hear that the big torque plates, etc. are not recommended for towing. That is for two reasons (1) egt can climb, especially with the HX35; and (2) you have to watch the gauges or have your fueling level carefully matched to the cylinder head airflow and the turbo.

Piers and I have been working on getting the right combination. Others have tried it and seem to agree with our findings thus far.
 
Sorry Joe, My information is based on real world testing, I live in a mountainous area, can't go anywhere without going up or down a hill.
I tow two trailers one in the winter and one in the summer nearly every weekend, both are 24ft and one is 10,000 lbs. and one is 8,000 lbs.

When I had the HX40 18 my EGT is as follows, while towing 8,000 lbs
1200 at 70mph and smokey 13psi 1950rpm
1150 at 75mph less smokey 16psi 2100rpm
1100 at 80mph clean 20psi 2250rpm
as you can see lower egt at higher rpm and visa versa.

The 16cm2 is much better than the 18cm2 for rams that operate at 2200-2500 rpm

The exhaust turbine housing determines optimum operating rpm, smaller is lower and bigger is higher.

All I am saying is; that every part out there has a specific application, and I am trying to offer as much info as possible so owners can make an educated decission, and not be pushed in to buying something just for the sake of a Dollar!

Who is EARNEST anyway? #ad




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Ted Jannetty, Owner President Jannetty Racing Enterprises Inc.
97 3500 4x4 club cab 5spd. RED, JRE stage 3 power kit, JRE 4" exhaust
JRE 1/2 inch fuel system, Cummins 370 hp injectors, Prime loc,
Cummins chrome kit, US Gear 20% over drive, 3. 54 posi, Autometer
gauges, boost, and Pyrometer, BD exhaust brake.
97 Ski-Doo 670 turbocharged
99 Honda Forman 450 ES
 
One more thing, I tow my 10,000 lb. trailer with a 5spd. in fifth and in 20% over with a US gear Dual Range, this gives me a 2. 10 final drive.
I have 31. 5in tires.
With the stock turbo, I have pulled some huge mountains at 1800 rpm at 75mph 1/4 throttle, move the throttle to 1/2 and will accelerate to what ever.

And never see over 1100 degrees pre turbo up to 2400 rpm.

The Key is RPM and Match your turbo to that rpm.

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Ted Jannetty, Owner President Jannetty Racing Enterprises Inc.
97 3500 4x4 club cab 5spd. RED, JRE stage 3 power kit, JRE 4" exhaust
JRE 1/2 inch fuel system, Cummins 370 hp injectors, Prime loc,
Cummins chrome kit, US Gear 20% over drive, 3. 54 posi, Autometer
gauges, boost, and Pyrometer, BD exhaust brake.
97 Ski-Doo 670 turbocharged
99 Honda Forman 450 ES
 
To the top again, for those who missed out on some great info.

Ted Jannetty

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Ted Jannetty, Owner President, Jannetty Racing Enterprises, Inc.
97 3500 4x4 club cab 5spd. RED, JRE custom power kit, JRE 4" exhaust
JRE 1/2 inch fuel system, Bosch 300 hp injectors, Prime loc,
Cummins chrome kit, US Gear 20% over drive, 3. 54 posi, Autometer
Ultralite 50lb. boost, and Pyrometer, BD exhaust brake.
Horton fan clutch

99 Ski-Doo 800 Formula III Pipes, reeds, studs and clutching 172 hp
99 Honda Forman 450 ES jet kit, pipe, lift kit, 27" Mud Runners
2001 Ski-Doo MXZ 800 X stock for now 140 hp
2000 TransAm Ram Air WS6 Flowmaster, K&N, Granatelli Mass air meter, LS1 Lid 370 hp
1973 Camaro Rally Sport Street Strip 850+ HP
 
Go with the HX-40 or wait till some more testing is done on some possible turbo options.

[This message has been edited by sport bike (edited 12-20-2000). ]
 
I've been running the HX40-18 on mine for the past 12 or so months and the truck sees 50+ psi every day. Egts are still in check, but the whole speculation with egts is simple. Piers and I can bury an 1800 degree pyrometer in the blink of an eye. This is fine for 1/4 mile racing, but in the real world, if you're running that high it's time to downshift and bring up the revs. Towing is just fine with it too, no hp problems pulling the A. W. D. racer on its trailer up and down the wonderful hills of Rte 280 in Essex County, NJ. I too did a bunch of testing with all the different turbine housing sizes before moving up to the HX40 and this is what I found. 12cm housing; boost comes on hard and fast and dies just as fast, lots of low end grunt--blown head gasket from excessive drive pressure and too many full throttle runs with it. 14cm housing; nice... . power is much more balanced in the low and midrange rpms, still dies off in the high rpms. 16cm housing; the best balance of power and response for a high horsepower 12 valve engine with a 5 speed. The only move to make it better would be to go with the HX40. HX40 is for extreme horsepower engines where the engine has outgrown the stock turbocharger's efficiency band.

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Chris Timochko
AUTO WURKS DIESEL R&D TEAM
1997 5sp 4X4, Espar Heater, A. W. D. HX40 turbo, ATS 3pc Manifold, BD 4" Brake, Marine Compression, A. W. D. Custom Tuned Injection Pump, A. W. D. Intercooler, A. W. D. 370B Injection Nozzles, Delivery Valves, Governor & AFC Spring Kit, Psychotty Air, A. W. D. Water Injection, NOS Diesel Kit, A. W. D. 6" Chrome Exhaust System, BD No Smoke Valet Switch, McLeod Dual Disc Clutch, Mag-Hytec Rear Cover, Cummins Chrome Kit, Optima Red Tops, Hadley Bully Horns, Hurst Line Loc, Goodyear Wrangler AT/S 305/70/16s.
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Project U96 - 1996 3500 2WD racer. A. W. D. Marine Ultra Low Compression, A. W. D. Teflon-coated Pistons, A. W. D. High Lift Camshaft, Ported and Honed Cylinder Head, Intake and Exhaust manifold; A. W. D. HX40 Turbocharger, ATS 3pc Exhaust Manifold, A. W. D. Water Injection, A. W. D. Custom Fabricated Fuel System, Race Spec A. W. D. /BD P7100 Injection Pump, A. W. D. Custom High Flow Fuel Injection Nozzles, BD Auto transmission and Custom TC, Weld Draglites, Goodyear Eagle Drag Slicks, 5" Single Stack Through The Bed, Mag-Hytec on Rear and Transmission.
 
DieselB59,

Sounds like you need a bigger turbo if your still seeing exh temps that high. I could easily bury my egt gauge with the HX-40. I switched to the H2E,and it gave me an extra 2-3psi of boost. Lowered my exh temps to 1350. I,m having it modified to get quicker spool ups and that should get me a little more boost. There are a couple of different turbos that i,m going to try. I should have the next one next week.
 
I sent the turbo to Majestic turbo in TX. They are doing a comp prep and clipping the turbine wheels. They ultra balance the assembly and liten the wheels. (One thang to keep inmind is that these are not race turbos,but are mass prodused low hp turbos for big truck engines). It ,s suppose to give you quicker spool up and a couple #,s of boost. I tested the turbo before i sent it so this will be interesting to see the difference. The cost is $200. I will get the turbo back on tuesday. If this works out good it would be an option for the guys that want a HX-40 to react like a HX-35.
 
Thanks Sportbike for doing all the leg work. It does not go by unnoticed. Thanks again.
-Michael

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2000 Ram 2500 SLT, 2wd Regcab, Driftwood/Agate, 6spd, ETC Diesel. Rickson 19. 5s, Simulators, Michelin 225/70R19. 5 tires, Reunel double break rear bumper, van Aaken CPC, TST Competition PowerMax, RV injectors, HX40-16cm2, 5" exhaust
 
What you guys need is not a bigger turbo but two so both of them will be operating within their range and they will be making cold air in stead of pushing the turbo out of where it wants to run thats when it starts making heat
 
gettem wiz. I want two also, but am confuzed on what way they go, big to small say a hx55 with a 22cm2 housing and maybe the h2 with the 17 housing or the opposite?
We need Pias to fugure this out.
 
If your going to stay with Holset,try the HX-55W off of a ISX engine. It has a 19cm wastegated exh housing. Uses a very high compressor ratio. Part # is 3592778. It is one of the turbo,s on my list to try.
 
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