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Originally Posted by TDIwyse
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Originally Posted by Chief Orman
TDI I don't get the comment on controlling EGTs. My water meth system always increases EGTs even at 30% meth...not a lot but still a bit hotter. Perhaps I am missing the point... EGTs acceptable relative to power generated?
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That's interesting. I'm specifically referring to peak power EGT's, not sure if that's what you're talking about as well?
I've always seen a reduction in EGT's, unless the methanol percentage and amount starts getting excessive. My experience is limited to a small sampling of diesel engines, however.
When looking at FAQ's from some water injection vendors they seem to indicate a position that mirrors my experience, that it lowers EGT's. A couple examples:
http://www.snowperformance.net/category-s/169.htm
http://www.alcoholinjectionsystems.c...ionSystem.html
Would be interesting to see your logs showing an increase in EGT's with and without injection. Maybe post them in one of the water/methanol injection threads? |
I will do that with torque pro. DWR and I had a long back and forth on this mod. I also spoke to the guys at Snow. Irrespective of Snow's website they make a big internal distinction between one of us and a pickup towing a boat over the continental divide. The Snow guy said that if I wanted to see my EGTs truly drop I needed to be under 20% methanol. Moreover, The pickup guys if pulling a heavy load up a long grade use 0 to 10% meth. Trucker's motto...meth = heat. At first this pissed me off given that Snow so prominently blathers on their site about reduced EGTs and regens which I have never experienced. At a 50/50 mix I can keep EGTs sub 900; 60% meth sub 950. Don't want to any hotter than 950 and only get that hot if I feel compelled to race an Audi. 60% meth the car absolutely hauls ass above 18psi of boost when my system starts spraying.