Big Dumb Truck
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I think Chris is talking about horse power not the volume the punk puts out.
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Your right in that more HP will not make the truck move at a faster top speed. What it will do is get you there faster ! It will also allow you to use taller tires which will allow you to go faster and still be able to do it quickly.Ok I might be completely dumb In saying this but I truly don't know if my thinking is correct.
More horse power doesn't mean going faster. Just means your engine doesn't have to work as hard to accomplish it's ability to move the vehicle.
The ability to go faster is determined by gearing in your tranny and your axles differentials.
This all being said educate me if I am as dumb as I said earlier.
However I am interested in the idea of a custom cam for the multi fuels. I have always wanted one. I am amazed by some of the things I have read guys on this site use for fuels. With the growing costs of fossil fuels an engine like the multi is ahead of its time.
Reminds me of the movie "Back to the Future" when at the end the character "Doc" puts garbage (and a can of beer�� in some sub atomic processor for fuel. Runs on almost anything!
The custom cam would be great if it impossible so as the give the engine more grumption to get up hills, haul loads, and just get the old rigs up to speed better so as not to Piss off the yuppies in their hybrids.
An issue I question is would the block not be to weak. I mean these engines were designed in the mid 1960's?
Metallurgy has come light years since then as stated. Wouldn't Prolong usage of an increase of horse power prove fatal as in engine case cracking or other internals failing.
I would love to use one as a daily use engine in my project. The extra horse power to get up to speed and be able to climb hills easier would be awesome. I don't want crazy horses just a more efficient and stronger multifuel.
I can't believe the multi hasn't been modernized to keep up to the rest of technology.
Yep and a intercoolerThe intake manifold has hot fluid running through it. It seems to me, in an effort to lower EGT's the Stock Intake manifold has got to go! Thoughts?
Yep and a intercooler
There was some talk awhile ago about different rockers, but it came to nothing. So the only way is to regrind the cam and yes it is a pushrod engine. Now Tracey's engines uses a roller cam but it needs a complete work around on the engine to accomplish this. He just has is own blocks built from solid steel now.A re-ground cam can be done for fairly cheap. Theoretically you can get any specs you want, and make up for the smaller lobe diameter with longer pushrods. I'm curious, can you get different rocker ratios? If so, then it is possible to get different cam specs without ever touching the cam. I'm speaking from experience with gasoline pushrods engines and assuming it would work the same for a diesel. It's late, are multi fuels pushrods engines?
Just a guess, but I think it is far more likely that the LDS injection pump cam has a faster rate of rise than the LDT/ LD. Do a google search for this and you will find a lot of information on this topic. The fueling rates for the different pumps can be found in TM 9-2910-226-34.I was trying to figure out how much more fuel would need to be injected to equal the LDS engine. If the HH cam could be modified for more stroke ? Just thinking out loud. I know a lot of people just adjust it up but that is not the same as having the stroke of the HH pump doing it. Think of a Chevy 350 versus a 383 stroker. You can make the 350 put out the same HP as the 383, but the 383 will always have it easier making the same power.
I was completely wrong. Every one of the multifuel injection pumps uses the exact same camshaft: SH9036A. However, it does appear that the plunger diameter of the hydraulic head varies. AMBAC lists the diameter for many heads but I can't find any information for the multifuel heads.....Just a guess, but I think it is far more likely that the LDS injection pump cam has a faster rate of rise than the LDT/ LD. Do a google search for this and you will find a lot of information on this topic. The fueling rates for the different pumps can be found in TM 9-2910-226-34.