Quote:
Originally Posted by oil pan 4
Water mist injection will lower EGTs by up to 300'F intake temps will show over 100'F reduction depending on starting air temps and how much water I can dump in.
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Not to be a "naysayer" but I've got a devils own progressive wi kit on my truck ( 1998 k2500 with a new 6500 Optimizer) using a 10gph nozzle.
Starts at a boost referenced 5 psi and is at full battle cry by 8 psi. I max out at just under 13 psi total for boost.
I only get about 100f drop in egt total. About 30-50 iat drop.
That's if I start spray on the way up in egts. If I wait for them to max out at 1100 and start the spray there is no difference in egt. Maybe a 25-50 f drop once theyre up, if I'm lucky.
Absolutely no improvement in mpg. Perhaps if you used WMI there would be improvement, but you're also adding a fuel source with WMI as opposed to just wi.
Wi works, but it's highly "overhyped" in the add copy. Results of mpg and egt drop seem pretty exaggerated IMHO.
I have no intention of dumping more than 10gph of water into my 20.2:1 engine either....
It's also never sat right with me to be spraying water into the intake stream. I'm in aviation, so I understand the principles behind it. For Otto cycle engines that is. I see the egts benefits in a diesel, but I also soo increased humidity and I know what that does to density also, not a good relationship (google humidity and density altitude).
Once I get my ata intercooler up and running, the wi is coming out of the intake stream and will be retasked to spray on the exterior of the intercooler for additional cooling effectiveness by pulling heat out of the aluminum faster than just the air can.
Ymmv.....