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I have a '90 dt 360 w/intercooler that is rated @ 180 hp. I would like to see 25-45 hp more.What would be the most likely route(s) to pursue ? Is there a company/person that is familar w/ modifications to this motor/ thanks karl
You have a great engine, there, but it is the smallest one of that particular family. An easy conversion would be to swap out the 360 for a DT466 (optional engine for bus chassis). There is a little performance stuff out that should bolt up to the 360, but a lot more for the 466. One of the guys on the design team for this series of engines started his own high-performance company, "Hypermax". Really high quality stuff, designed specifically for the particular engine. Google "hypermax"; sometimes parts will show up on ebay. The easiest fix would be to turn up the fuel (pressure). More fuel=more power. Any mechanic at the county bus garage should be able to take care of you. The factory injectors should be able to flow more fuel than the engine can burn with a stock-trim turbo; they aren't holding you back. You aren't driving a '99 civic, here.
What rpm's are you turning? The easiest way to increase hp is to turn up the govenor. Most skoolies come from the factory with engines that are governed far below redline.
I have the dt360 in my skoolie. She was turning 2,300 rpm's with a max speed of 60 mph when i bought her. 10 minutes work on the injector pump and now she turns 2,700 rpm @ 65 mph.
I'll try to find the link on how to turn up your rpms it in the next couple days. I'm not a diesel mechanic, but this is a really simple fix.
onother option:
You can also "turn up" the fuel going to the motor and get crazy amounts of hp from the engine. You need to have a pyrometer installed before you do this mod so you can monitor the exhaust gas temperatures. This is also a very simple mod, but will have a negative affect on fuel economy, and perhaps longevity of the engine.
Both mods are absolutely free.....except the pyrometer