He is tuned essentially identically to myself, but is running distilled water + water wetter.Īnother thing I've discovered about this stuff is.you can literally lay your hand right smack dab on the intake manifold when the car is running, and it is cool as a cucumber. My friend runs a similar setup as myself, somewhat less power.less compression, and IS getting some knock count under extreme conditions. Albeit with tons of hours spent tuning, I'm running 36deg of timing, yet no signs of detonation at all RPM's and varying degrees of load, neither detected by ear, or on a logger. I had just built my motor, and was attempting to run high compression on pump gas,(91 octane here in Ca.) I figured the Evans would help in achieving my goal. I am running a 160deg stat, BeCool radiator, and Meziere heavy duty electric water pump. I am running Evans NPG+ in my 575hp naturally aspirated 1996 Impala SS. I am a believer in the propylene glycol products Evans, Amsoil, Sierra etc. This product has some real good attributes. I am going to try it again at some point, but maybe not in my taurus. Also cooling systems that have an expansion tank (with the rad cap on the tank) cooling system instead of the overflow reservour can't utilize the lower pressure radiator cap set up. Bigger heater cores and radiators.Īlso they sell 2 different kinds of coolant as well as the Preflush. My daughter has the same car/engine in her 96 that has a little better heat output.įrom what I read on the the net it sounds like it would work real good in truck diesel applications. This makes me think the TSB has some effect on my heater performance. I am running Amsoil antifreeze right now the heat from the heater is better but not super good. I did consult with Evans on this issue and they said sometimes the heater cores are too restrictive for real good heater performance. So in all fairness that might be part of the problem I had also. The thing is my car has a major TSB on the coolant/heater system that involves major cooling system modifications. I had a sample sent to Evans and they said that I had too much water and Sierra and not enough Evans. They have a pre flush they now sell for this purpose. I had to try to flush out the water in the block with Sierra antifreeze per Evans. I had no way to drain the water to the block because there is not access to the drain plugs. I did not get real good heat when sitting at an idle.
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