2015年4月9日 · Here's my situation: I have two Peterbilt 379 EXHD daycabs. Both have the same 18 speed transmissions, same tire sizes, same rear ratios (3.70). Both have Caterpillar 3406E engines.One is a 1LW and the other is a 2WS. They both came from the factory set at 475 H.P., both were re-rated to 550...

2016年5月8日 · I'm looking for a document showing the power and torque curves or power/torque per RPM specifications of the CAT3406E (2WS) or the C15 (6NZ) engines (factory tuned). I've searched through the entire internet and simply can't find what I'm looking for.

2016年5月22日 · I've done a lot of internet searching and made a few phone calls and can't seem to get a clear answer on this. I'm looking at a couple of trucks for sale, both have 2WS 3406E engines rated at 435hp. I'm going to want to bump it up to 475 or 550hp and want to know if they have the internals to handle it, specifically the pistons.

2011年10月13日 · The 2WS and 1MM are LOW NOX from the factory.....the only thing you can do about this is have them flashed with a modified file, because CAT never wrote a file for these engines without LOW NOX. All files written after DEC 99 are LOW NOX files.

2012年12月14日 · The wrecking yards were asking between $5500 to $7000 for a running 2WS with no papers or history. I got an MBN that was rebuilt at CAT 2 years ago with papers,some warranty and all history from new from CAT for $9,000

2010年1月21日 · I have a 2WS in my 2000 Star and its was only rated for 475hp although now its flashed to a 7CZ. I ran it stock for a long time and it would keep up or outpull all our 550s. Not sure why theres a big fuss over the 6NZ.

2015年4月20日 · The 58 or 8502 Reman injectorswill not be any part of a Platinum kit from Cat for a 2WS engine. The max injector size will be 57 or 8501 from CAT with this kit. Also the 58 or 8502 injector will achieve much more then a 70 hp gain.

2013年9月28日 · The 1MM 15.8L 3406E and 2WS 14.8L 3406E went to the newer electronics know as ADEM II or 70 pin ECM. Otherwise they are basically the same engine as the earlier 40 pin 1LW 14.8L and 5DS 15.8L engines The main difference between these engines is Cat changed the gasket sealing of the oil pan, front structure cover and flywheel housing to ...

2009年7月19日 · I have a 99 Peterbilt with a 2WS 550 3406E with 1.2 million miles. I had just gotten fuel, started the truck pulled away from the fuel island and heard a miss. Couldn't get it to do it but one more time that evening. Only missed at a low rpm. Got out on the road went through the gears and never missed a lick.

2019年1月8日 · The truck has an SDP cat so I have the right oem cab harness. i was planning on plugging into a 2ws ecm with the factory harness since its a 70 pin plug on both 2ws and SDP ecms rydr , May 29, 2020 rydr , May 29, 2020