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I will have to see what the rules read concerning electronic control of the water injection unit. I do know that no electronic control for fuel is allowed. All things to think about before I go to the dyno again. Thanks! Adam

Great ideas. I will certainly look into those next winter when we are on the dyno. By the way, Winterbone's two book set departed the UK today for my doorstep. I HOPE they are worth the money!!

The rest of the engine should be able to handle extra boost with no problem. The lower end already has a girdle on it, billet pistons, room to crank the injection pump up some more, etc, etc.

The water injection is controlled by a pressure switch that references the intake manifold pressure. If you look at the first URL I posted earlier, you can see the fitting/line that attaches the pressure switch to the intake manifold.

Thanks for all of the tips; you guys are great. Pat, I wish I could stick an intercooler on this thing, but the rules for this particular class strictly prohibit them. I will certainly look into the heavy flywheel and turbo wheels. With our current water injection system, EGTS are ranging...

Thank you for all of the comments concerning reference material. Pat and TrackRat, thanks for the comments above, simple but informative. In this application I am not worried too much about response, mostly peak power output. The engine only runs about 14 seconds at a time, pulling a heavy...

I finally got some photos uploaded to photobucket. The links are all pasted below. They include the current intake manifold and spacer, exhaust manifold, and turbo inlet. I also plan on putting a bellmouth on the turbo inlet so my flow diameter is not decreased too much. Please feel free to...

Thanks for the comments. I am still in the initial stages of planning and deciding which route(s) I want to go, as far as design is concerned. I had similar thoughts about the exhaust, but wanted to read up on the subject a little further. We will probably keep the exhaust manifold that is on...

I forgot to mention, this engine utilizes a "lubricated water" injection system, injecting water into the intake to provide evaporative cooling and a higher charge density.

I am working on an intake and exhaust system for a high performance tractor pulling application. The engine in scrutiny is an International DT466. To give you a little background on the engine: -International DT466 (straight 6 cylinder) -Stock bore, stroke, connecting-rod length, exhaust...