Hey Mickey Dunlap....
#3
#4
Hey Mickey Dunlap....
Mickey, can you elaborate on that. I looked up NPG+ a while ago when some of us prairie owners were overheating and wondered if it was good to use.
Do you just completely replace the Prairie/Vforce coolant without any modification?
Do you get a cooler running engine and less overheating as a result?
Do you just completely replace the Prairie/Vforce coolant without any modification?
Do you get a cooler running engine and less overheating as a result?
#5
#6
Hey Mickey Dunlap....
When you run your engine under stressful conditions there is metal that is hotter than the boiling point of your water-based coolant. Water vapor is the result. Once formed, water vapor prevents heat transfer from hot cyl head metal to the coolant - it actually insulates. Control of the metal temperature is lost and you get detonation. Evans NPG+ waterless coolant has a very high boiling point and won't make the vapor, preventing cooling system failure.
#7
Hey Mickey Dunlap....
I read all that on Evan's website. I wanted some first hand experience.
I sent a PM to Mickey. He said that he doesn't need radiator fans and coolant bottles on his racing machines as a result.
He wasn't overly detailed in what he said. But basically you can just put it in after doing a super thorough job of getting all the old coolant and water out. No mods necessary.
I am positive that we wouldn't need the coolant bottle. NPG+ doesn't expand with heat like water/glycol does, so the recovery bottle isn't necessary. I am not posiitive about the fan. I think it might be a good idea to leave the fan intact until I see for myself how NPG+ works.
I am not switching to NPG+ right away. I don't need it. I was looking into it when I was having overheating problems before I learned how to get all the mud out of my radiator.
I sent a PM to Mickey. He said that he doesn't need radiator fans and coolant bottles on his racing machines as a result.
He wasn't overly detailed in what he said. But basically you can just put it in after doing a super thorough job of getting all the old coolant and water out. No mods necessary.
I am positive that we wouldn't need the coolant bottle. NPG+ doesn't expand with heat like water/glycol does, so the recovery bottle isn't necessary. I am not posiitive about the fan. I think it might be a good idea to leave the fan intact until I see for myself how NPG+ works.
I am not switching to NPG+ right away. I don't need it. I was looking into it when I was having overheating problems before I learned how to get all the mud out of my radiator.
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#8
Hey Mickey Dunlap....
NYROC... I can give you a "real world view" on it in a little while... I got a jug with my big bore kit, after expressing concerns about over heating ( which was the cause of my rebuild in the 1st place )... the shop forgot to install it, when they put the new radiator & FST kit in... I'll be installing a fly wheel key in a few weeks, & planned to put the NPG+ in at that time, since I'll need to drain the whole system anyway...
If Mickey comes back on here... Mickey, I read somewhere that one BB kit you did, where you used this coolant, ( may have been regular NPG ??? ), you removed the thermostat...I haven't looked at the manual yet to see if it is possible, or you reccomend this ????
If Mickey comes back on here... Mickey, I read somewhere that one BB kit you did, where you used this coolant, ( may have been regular NPG ??? ), you removed the thermostat...I haven't looked at the manual yet to see if it is possible, or you reccomend this ????
#9
Hey Mickey Dunlap....
I talked to Evans today and got a gallon of their new NPG R instead of the NPG+. The NPG R is their new stuff and is supposed to run around 20* cooler than the NPG+. The R is the lowest viscosity they make, is rated for -10*, and is seasonal. The NPG+ is a long life version and does not need to be changed every season but is a higher viscosity and is I think he said rated to -40* ( I don't remember for sure). He said Mickey is running the NPG R and they also recommend pulling out the thermostat. The want the best flow possible and don't feel that there is a significant need for a thermostat on a 2qt cooling system with a temp controlled fan.
These types of products are probably a good choice for big bore kits because of sleeve being against, or in, the water jacket. The non-water products won't vaporize from the heat or vibration and have less pressure. I don't know how the Evans compares with Engine Ice. I ran Engine Ice and didn't have a temp improvement over regular coolant. However, Engine Ice and the like will not corrode like regular coolant/water mixes.
Peace,
Sgt_Rock
These types of products are probably a good choice for big bore kits because of sleeve being against, or in, the water jacket. The non-water products won't vaporize from the heat or vibration and have less pressure. I don't know how the Evans compares with Engine Ice. I ran Engine Ice and didn't have a temp improvement over regular coolant. However, Engine Ice and the like will not corrode like regular coolant/water mixes.
Peace,
Sgt_Rock