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did you install it in the c91 or the modified c92 housing?
I installed the Mishi in the C91 housing.
Even after drilling and milling the center pin locator on the C92 there was still a slight gap on the flange and I understand why since the flange is stepped down deeper on the C92 than the C91.
Just guessing, but I would reckon it would take milling about half the thickness of the center pin locator in order for the t-stat to seat correctly.
At least with that particular housing it wasn't the pin depth that was the issue, but the actual pin housing is blocking the brass portion of the t-stat unit.
C92--no drilling, no boiling-just went right in. I was gonna pull it for measuring but haven't had the chance.
I wonder how many people with the c92 had no issues?
C92--no drilling, no boiling-just went right in. I was gonna pull it for measuring but haven't had the chance.
I wonder how many people with the c92 had no issues?
2006 F350 4X4
Interesting.
I think the true answer to all of this is for Mishimoto to offer the t-stat with housing and gasket.
In reality the Mishimoto t-stat is a lot of hassle for the price.
I think the true answer to all of this is for Mishimoto to offer the t-stat with housing and gasket.
In reality the Mishimoto t-stat is a lot of hassle for the price.
Josh
Josh I so agree with that statement that I will be sticking with the
IH one I got last February. It is still holding at 192º and not near
the price of this one. If they gave me one with a housing I would
give it a try.I am sure that my truck would like the added heat.
The 192º Vs the 180ºish I seeing last winter was a vast improvement.
Josh I so agree with that statement that I will be sticking with the
IH one I got last February. It is still holding at 192º and not near
the price of this one. If they gave me one with a housing I would
give it a try.I am sure that my truck would like the added heat.
The 192º Vs the 180ºish I seeing last winter was a vast improvement.
Sean
Happy New Year
It may well be psychological, but with around 10 degrees ambient the engine does seem quieter and idles smoother at 199 than it does at 189.
No issues with temps last 26 months until now with my old Motorcraft, so comparing anything to the Summer would be for naught. But it really did seem to behave better with the new Mishi versus the old Motorcraft.
I have read this entire thread and I am still on the fence about the Mishimoto. My temps are definitely low at 182 so I need to get the engine warmer. Do I go firth the Motorcraft or Mishimoto? $50 is an expensive thermostat, add $23+ for a housing (if needed) and coolant and a simple thermostat job ends up being $100.
I haven't read in the thread what Ford considers the engine to be full operating temperature? What temperature allows for closed loop or does that not apply to the 6.0? The other question is how can increased ECTs allow for lower EOTs, it seems contradictory.
I have read this entire thread and I am still on the fence about the Mishimoto. My temps are definitely low at 182 so I need to get the engine warmer. Do I go firth the Motorcraft or Mishimoto? $50 is an expensive thermostat, add $23+ for a housing (if needed) and coolant and a simple thermostat job ends up being $100.
I haven't read in the thread what Ford considers the engine to be full operating temperature? What temperature allows for closed loop or does that not apply to the 6.0? The other question is how can increased ECTs allow for lower EOTs, it seems contradictory.
I couldn't say myself but I was on my way to a full flush and oil cooler change due to my splits growing from 5° when I bought the truck to 10° in just a few months. The splits were due to coolant temps getting lower. I put the Mishimoto in and my temp splits came back to normal--made me very happy.
I have read this entire thread and I am still on the fence about the Mishimoto. My temps are definitely low at 182 so I need to get the engine warmer. Do I go firth the Motorcraft or Mishimoto? $50 is an expensive thermostat, add $23+ for a housing (if needed) and coolant and a simple thermostat job ends up being $100.
I haven't read in the thread what Ford considers the engine to be full operating temperature? What temperature allows for closed loop or does that not apply to the 6.0? The other question is how can increased ECTs allow for lower EOTs, it seems contradictory.
185 is the lowest you would want to see at operating temp. Ideal is 190+
Should be able to look at the housing and see if you have the C91 or C92 housing.
I have read this entire thread and I am still on the fence about the Mishimoto. My temps are definitely low at 182 so I need to get the engine warmer. Do I go firth the Motorcraft or Mishimoto? $50 is an expensive thermostat, add $23+ for a housing (if needed) and coolant and a simple thermostat job ends up being $100.
I haven't read in the thread what Ford considers the engine to be full operating temperature? What temperature allows for closed loop or does that not apply to the 6.0? The other question is how can increased ECTs allow for lower EOTs, it seems contradictory.
I think Ford describes "normal Operating Temp" as 190°.
I don't think increasing the ECT will reduce the EOT. It just reduces the difference between the two -a common indicator of the health of your oil cooler. Oil is usuially hotter at full operating temp and increases with this stat is greater on the coolant than the oil.
Closed loop and open loop refer to gassers, the oxygen sensor has to be within a specific operating range to work properly so it uses look up tables (open loop) using values from other sensors until the O2 readings are within limits. No O2 sensors on our diesels.
I'm not trying to talk you into anything but my experience was that the Motorcraft and a couple of aftermarket thermostats I tried seem to work well when they were new but dropped in temp over time. (I can change the stat in my '06 in 6min and 37sec, including draining some coolant )My truck uses an amazing amount of fuel when it's cold, just watching the lie o meter drop on a cold start is amazing. The Mishi got my temps up a few miles sooner which has to help some. I described this earlier in this thread but I also pull hills at lower speeds without downshifting. That would seem to be an indication of more power to me. In a nutshell, I think my truck runs better.
I guess my thermostat didn't experience any high temps in shipping as I didn't have to boil it. It fit in the housing I took off the truck, which was a Stant (or Motorad), and it has worked as advertised ever since. 204° is a common ECT for me. The only real test left for me will be if it holds temp like this next winter.
As for price, in my case I expect it to pay for it's self in fuel savings fairly quickly. $50 is what, about half a tank? Adding to that I won't be buying another one next year and it's a no-brainier.
My mishi has been operating great. I usually see about 203 temp. Ranges from 199.4 to 205. I agree with other posts, warms up sooner, seems to help mpg, runs smoother. I hated having to spend $100 on a stat and housing as well, but I think this is a "must do" mod if your temps are low anyway. With the lifetime warranty, fuel savings, and probability of it lasting longer than the ford unit, I think it is a no-brainer.
12-26-2014, 06:44 PM
)My truck uses an amazing amount of fuel when it's cold, just watching the lie o meter drop on a cold start is amazing. The Mishi got my temps up a few miles sooner which has to help some. I described this earlier in this thread but I also pull hills at lower speeds without downshifting. That would seem to be an indication of more power to me. In a nutshell, I think my truck runs better.