{"id":2983,"date":"2014-10-05T15:37:50","date_gmt":"2014-10-05T22:37:50","guid":{"rendered":"https:\/\/www.gmcws.org\/blog\/?p=2983"},"modified":"2014-10-20T08:36:04","modified_gmt":"2014-10-20T15:36:04","slug":"manny-trovao-announced-his-plan-to-provide-a-drop-in-diesel-engine-for-our-classic-gmcs","status":"publish","type":"post","link":"https:\/\/gmcws.org\/blog\/manny-trovao-announced-his-plan-to-provide-a-drop-in-diesel-engine-for-our-classic-gmcs\/","title":{"rendered":"Manny Trovao announced his plan to provide a drop-in diesel engine for our Classic GMCs"},"content":{"rendered":"

\"IMG_0810\"<\/a>
\nManny Trovao announced his plan to provide a drop-in diesel engine for our Classic GMC motorhomes. Manny did not provide me with a written description but, fortunately, Jim Hupy posted the following on the GMCnet:<\/p>\n

\"No big secret. The engine is a BRAND NEW AM GENERAL 6.5 LITER DIESEL.
\nTURBO. pre-combustion chamber injected with glow plugs. Similar to the\u00a0engine in the Hummer. Manny and the Rep from the factory put on a\u00a0demonstration at GMCWS. The engine puts out about 400 foot pounds of torque\u00a0at 2200 rpm. Mates to the TM-425. Uses a 6 lug flex plate and an\u00a0appropriate torque converter. Manny beefs up the primary drive with special\u00a0Torrington style thrust bearings. Engine will pull 2:73 or 3:07 final\u00a0drive. Expected to produce 14 miles per gallon or so. It fits the engine\u00a0bay through the top or out the bottom with no alteration to the coach. No\u00a0raised hatch either. Looks to me like a winner. Cost? $10,000 +. \u00a0 \u00a0Jim Hupy\"<\/p>\n

Thanks, Jim<\/p>\n

Update 10\/5 8:30 p.m. from Jim Hupy:<\/p>\n

\"O.K. guys. Speculate all you would like, the FACTS of this situation is\u00a0that a conversion is currently in progress. When the install is complete,
\nthe coach is going to the AM GENERAL FACTORY for testing, and tweaking.\u00a0Final configuration of turbo sizes, manifold configuration, Injector pump\u00a0and lines and injectors, will be optimized for the GMCMOTORHOME. So if\u00a0you think you know all there is to know about the 6.5, please wait and see\u00a0how this one shakes out. I am very excited about this, as is Manny and Jim\u00a0Bounds. It will be a few weeks until this deal totally shakes out, then we\u00a0will see. Please be patient.\u00a0Jim Hupy at GMCWS in Manteca, Ca.\"<\/p>\n

Update 10\/7 from Jim Hupy:<\/p>\n

\"the current 6.5 turbo diesel fitted into the Hummer is an entirely
\ndifferent block and head configuration. It is NOT MANUFACTURED BY GENERAL
\nMOTORS. After GM wore out their tooling, they sold it and the manufacturing
\nrights to AM GENERAL. Upon inspection of the tooling and original castings,
\nAM GENERAL went back to the drawing board and spent a whole bunch of money
\non a new engine manufacturing facility with new tooling, paying particular
\nattention to placement of head bolt threads. That was a source of engine
\nfailures in the GM manufactured engines. AM General outsources the casting
\nof the engine blocks, not to GM. The factory rep told me the name of the
\nfoundry, but I am unsure of the name so I will not name them. The nickel
\ncontent was increased from what GM specified, and I believe that less
\nMolybdenum is now used. This makes a very durable engine, similar to what
\nOlds used in the 455. Also makes it more difficult to machine and hard on
\ntooling. The AM General engine LOOKS LIKE THE GM BUILT ENGINE , but is, in
\nfact, quite different. They pull one engine from the production line out of
\nevery 100 engines produced and test them on a dyno at maximum torque and
\ngoverned top rpm to destruction. Then engines are disassembled and
\ninspected to determine cause of failure. Improvements are incorporated into
\nthe engines as the solutions are determined. Are they perfect? No, but they
\nare getting better. As more info becomes available to me, I will post what
\nI learn here.\" by Jim Hupy from the GMCnet<\/p>\n","protected":false},"excerpt":{"rendered":"

Manny Trovao announced his plan to provide a drop-in diesel engine for our Classic GMC motorhomes. Manny did not provide me with a written description but, fortunately, Jim Hupy posted the following on the GMCnet: “No big secret. The engine is a BRAND NEW AM GENERAL 6.5 LITER DIESEL. TURBO. pre-combustion chamber injected with glow [read more]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[14],"tags":[],"class_list":["post-2983","post","type-post","status-publish","format-standard","hentry","category-tech-info","category-14-id","post-seq-1","post-parity-odd","meta-position-corners","fix"],"_links":{"self":[{"href":"https:\/\/gmcws.org\/blog\/wp-json\/wp\/v2\/posts\/2983","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gmcws.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gmcws.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gmcws.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gmcws.org\/blog\/wp-json\/wp\/v2\/comments?post=2983"}],"version-history":[{"count":0,"href":"https:\/\/gmcws.org\/blog\/wp-json\/wp\/v2\/posts\/2983\/revisions"}],"wp:attachment":[{"href":"https:\/\/gmcws.org\/blog\/wp-json\/wp\/v2\/media?parent=2983"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gmcws.org\/blog\/wp-json\/wp\/v2\/categories?post=2983"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gmcws.org\/blog\/wp-json\/wp\/v2\/tags?post=2983"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}