Bigger turbo - create problems??

[SKAG]

Help!
I am putting on an HX40 turbo in place of my HX35 and was warned that I might burn my pistons up. With more air, I will lower the EGT, but the actual piston temperature may rise - and the excess oxygen in the cylinder will burn the pistons. Is this a load of poop??? I was changing to the HX40 mainly because I wanted to run the engine a bit harder and keep the engine safe. My HX35 has a bad bearing and I found a reasonably priced HX40. (I'm also bumping the fuel plate forward. )

Thanks,

Craig

 

[illflem]

Craig,someone's talking turd to you, sounds like something a Dodge service writer would say. If anything the piston will run cooler most of the time. It's true you can only go so far adding fuel and air before the temps may get high,but not in your case. Just watch your EGTs,they give a good indication of the piston temp.

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95' 25004X4,AT,Driftwood,Banks Stinger,Warn fender flairs and running boards(work truck)
95 3500,5 speed 3:54,Driftwood,Banks&Psycotty,34,000 GCVW apple and tractor hauler(works harder truck)

 

[Joseph Donnelly]

Skag, please tell me how to contact the person who told you that. I have a real nice bridge to sell him #ad

Sickly's pistons haven't melted and dripped into the oil pan yet. #ad

 

[HEMI®Dart]

Skag,

Think about having your HX40 Competition prepped by Majestic Turbo before you install it. Its inexpensive and is said to really makes a difference. Mine is there now.

See here: https://www.turbodieselregister.com/ubb//Forum3/HTML/002349.html

[This message has been edited by HEMI®Dart (edited 01-12-2001). ]

 

[DieselB59]

I still pin my pyrometer on a daily basis, just don't hold it there for any length of time. A 1/4 mile blast down the highway at full throttle won't hurt it. I've been doing this for the past 72,000 miles and just like Joe, my pistons haven't melted and my head HAS been off. The head gasket failed from using too small of a turbo on the engine during a R/D session to find out if the moron who was using a 12cm housing to go faster was either a moron or worth his weight in gold. He was and still is a moron, and the head came off, but the pistons were still cherry. So the end result is big turbos have less drive pressure, lower egts and make much more power if given fuel is excessive. Myself and Joe D. are still underfueled in our minds, but we are also at the upper threshold of power.

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Chris Timochko
AUTO WURKS DIESEL R&D TEAM
1997 5sp 4X4, Rhino Linings, 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.