Re: md turbo?

Posted by Bob M on September 14, 2001 at 11:35:31 from (165.170.128.65):

In Reply to: md turbo? posted by shannon on September 14, 2001 at 08:38:52:

Same as Denny, I've never seen a turbo'd MD/400/450 either. I suspect the reason is the gas-start diesel has a fiendishly complex (hence delicate) cylinder head assembly - doubt it would hold up satisfactorily under the additional heat and pressure loads of even modest boost. Also the IHC injection pump is a simple mechanical single plunger pump - it has no way to sense boost pressure and adjust fuel rate accordingly. You'd have to either modify the pump to increase the stroke volume, or else replace it with a bigger pump to take advantage of turbo boost.

Now I did once see large IHC gas-diesel crawler (a TD-24 I believe) with a turbo hung on it in the late 60's. It worked briefly in a gravel pit adjacent to our farm. The crawler spent more time in the shop than working and was replaced with a D-8 Cat after a few months.

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