Oil cooler thermostat?
#126
Ayrton Senna Forever
Thread Starter
#127
SARX Legend
iTrader: (46)
Mazmart actual detailed how they operate and they are "open" at all times. they just open more as heat increases. Mine restricts flow and routes the oil back into the engine until the oil temp reaches 180F.
#128
Ayrton Senna Forever
Thread Starter
Yes, it is better to say that they close fully the cooler bypass way at the same temp.
#130
Ayrton Senna Forever
Thread Starter
#134
Ayrton Senna Forever
Thread Starter
Yes, I was thinking about it too, smaller dimensions, less weight, more possibility where to place it (a little better weight distribution of the car against front mount coolers).
#136
SARX Legend
iTrader: (46)
Does he have the Mocal setup? I just wonder how efficient the liquid coolers are compared to air/air. I found a huge high dollar fluidyne liquid oil cooler on ebay for like $100.00 a while back. I regret not getting it.
#137
Moder8
iTrader: (1)
Caution, Thread Revival !!!!
Synopsis of previous 6 pages...
Oil is hot, it does about 30% of the cooling in the car (if it flows through the cooler).
The current t-stats flow oil through the cooler at all times, what it adjusts is how much oil goes through cooler vs bypasses cooler. Coolers will get HOT, with just a little oil flowing. Especially without a fan on them. They will cool down quicker with air on them if the thermostat is closed, than if it is open. But, that test is a PITA.
Does this: Rotary Performance - Oil Cooler Thermostat Do what we want done? IE, drop oil temps, make oil last longer, maybe dump more heat from motor (oil cannot dump 30% of heat if not flowing through the cooler.
Thoughts?
Synopsis of previous 6 pages...
Oil is hot, it does about 30% of the cooling in the car (if it flows through the cooler).
The current t-stats flow oil through the cooler at all times, what it adjusts is how much oil goes through cooler vs bypasses cooler. Coolers will get HOT, with just a little oil flowing. Especially without a fan on them. They will cool down quicker with air on them if the thermostat is closed, than if it is open. But, that test is a PITA.
Does this: Rotary Performance - Oil Cooler Thermostat Do what we want done? IE, drop oil temps, make oil last longer, maybe dump more heat from motor (oil cannot dump 30% of heat if not flowing through the cooler.
Thoughts?
#138
SARX Legend
iTrader: (46)
I looked at those years ago, they are pretty common on other platforms. If you live in a warm climate just get rid of thermostats all together, that is what I did. I never drive my car without a few minute warm up anyway so it's a non issue for me.
I have custom oil lines and used to run a true bypass oil thermostat but deleted it for simplicity and since I run one stock oil cooler (and one large center mount) on the drivers side, I cut that thermostat just leaving the threaded portion and reinstalled it.
I have custom oil lines and used to run a true bypass oil thermostat but deleted it for simplicity and since I run one stock oil cooler (and one large center mount) on the drivers side, I cut that thermostat just leaving the threaded portion and reinstalled it.
#139
Registered
Damn .. is it that hot over there? I installed a bypass thermostat for exactly the opposite reason. I have cold climate here and the engine does not warm up under cruising speed with the Original Oil Coolers and the integrated thermostats. Did not get oil temps above 70°C (158°F) in winter...
Gretings
Thomas
Gretings
Thomas
#144
Moder8
iTrader: (1)
Making the plug is what I have to figure out. Or, buy the lower temp ones. Once way is more fun, one way has a lower chance of dumping crap into the oiling system.
#145
Scrappy
iTrader: (1)
Well these are mine... I didn't really measure them, but the top diameter only has to be bigger than the bypass hole, and the lower diameter only has to be smaller. I'm 100% sure just a bolt that fits in the bypass hole would work just as well.
Bypass Plug
Thermostat Bypass
Bypass Plug
Thermostat Bypass
#146
SARX Legend
iTrader: (46)
Yeah I mean I guess it is a bypass, but it cracks pretty early and is a small hole. I can't remember exactly but I want to say at like 110F and even when it is closed you still have the oil flowing thru the lines to both coolers and back to the engine. Where a true oil thermostat typically routes oil back to the engine before it hits the coolers.
I can tell that on mine, with the stock thermostat cut (no plug in the bypass hole, oil still flow thru the cooler. Path of least resistance I guess.
I can tell that on mine, with the stock thermostat cut (no plug in the bypass hole, oil still flow thru the cooler. Path of least resistance I guess.
#147
Moder8
iTrader: (1)
So,
Pulled out one of the spare oil coolers. Oil flows through both the hole and the cooler when cold. The only thing pushing it through the cooler is the restriction going through the hole. The T-stat does not plug the hole until it opens (closes??). Is backwards from water thermostat. I tossed it in boiling water. Did not open at 210 degrees. I gently touched it with a torch, opened right up. Tossed it back in boiling water, still did not open. I got a feeling that 194 is conservative.
Legot, I think you just put that plug in and let the thermostat hold it in, right?
Pulled out one of the spare oil coolers. Oil flows through both the hole and the cooler when cold. The only thing pushing it through the cooler is the restriction going through the hole. The T-stat does not plug the hole until it opens (closes??). Is backwards from water thermostat. I tossed it in boiling water. Did not open at 210 degrees. I gently touched it with a torch, opened right up. Tossed it back in boiling water, still did not open. I got a feeling that 194 is conservative.
Legot, I think you just put that plug in and let the thermostat hold it in, right?
#149
Moder8
iTrader: (1)
Thanks,
I am trying to figure out how to keep the pressure blow off function, with the factory thermostat but cannot think of a case where it would be needed. It would take an incredible quantity of gunk to plug the coolers, or an insanely low temp. Or, is that the purpose of the hole in the center, to allow pressure to push the stopper against the spring and open if necessary.
I wish I had a lathe.
I am trying to figure out how to keep the pressure blow off function, with the factory thermostat but cannot think of a case where it would be needed. It would take an incredible quantity of gunk to plug the coolers, or an insanely low temp. Or, is that the purpose of the hole in the center, to allow pressure to push the stopper against the spring and open if necessary.
I wish I had a lathe.