[Catmonkey]

Pretty sure the plate is retracted, so the by-pass port can flow coolant freely. When it warms up, the stem should extend and block off the by-pass hole in the bottom of the housing.

 

[palacios289]

Here is a Reische next to a OEM thermostat.
Seems the stem/plate is already extended on the Reische cold.

 

[Robert M]

Pretty sure the plate is retracted, so the by-pass port can flow coolant freely. When it warms up, the stem should extend and block off the by-pass hole in the bottom of the housing.

I was not fully up to speed on the bypass function..........So it is not a bypass through the thermostat like a hole or passage allowing coolant to pass when the engine is cold, but it is that plate on the end that blocks off the bypass passage inside the thermostat housing when the thermostat has extended fully open?

R

 

[Catmonkey]

Here is a Reische next to a OEM thermostat.
Seems the stem/plate is already extended on the Reische cold. View attachment 281150

I don’t think it is.

 

[Robert M]

I dug out my Super Snake take-off parts, I remembered there was a t-stat box with a t-stat in it. This is what Shelby installed in my 2008 during the Super Snake upgrade Jan. 2009 and the ultra low mile oem t-stat is in the box. It's been in my car since that time with no issues that I know of.......



R

 

[Catmonkey]

It's just going to by-pass all the time. It's not optimal from a cooling standpoint as all hot coolant isn't being divered to the radiator. However, I'm going on what Reische discribed the moto-rad working. I have not dumped all three units in a pot of hot water. But here is the Reische next to OEM. The OEM by-pass is obviously NOT fully extended.

 

[palacios289]

It's just going to by-pass all the time. It's not optimal from a cooling standpoint as all hot coolant isn't being divered to the radiator. However, I'm going on what Reische discribed the moto-rad working. I have not dumped all three units in a pot of hot water. But here is the Reische next to OEM. The OEM by-pass is obviously NOT fully extended.

View attachment 281151

That’s my concern. If the OEM isn’t fully extended that means the bypass is open. Once it extends it closes the bypass. The Reische and Motorad seem to be extended when cold.
I shall see what my Motorad does today. It’s in transit so I should have it later today for testing.

 

[Mr.GT.500]

here are the "rat stat" pics, hope this helps...

 

[Catmonkey]

Pic's don't really help unless someone can heat them up and deomonstate what they do. @palacios289, how do you know the Reische doesn't extend outward further when it's heated, or that the motorad doesn't retract when it it's heated?

 

[palacios289]

Pic's don't really help unless someone can heat them up and deomonstate what they do. @palacios289, how do you know the Reische doesn't extend outward further when it's heated, or that the motorad doesn't retract when it it's heated?

I don’t. I will at least find out on the Motorad today.
I just don’t think there would be enough room in the thermostat housing for the plate to extend more.
We shall see.

 

[Catmonkey]

I dug out my Super Snake take-off parts, I remembered there was a t-stat box with a t-stat in it. This is what Shelby installed in my 2008 during the Super Snake upgrade Jan. 2009 and the ultra low mile oem t-stat is in the box. It's been in my car since that time with no issues that I know of.......



R

Robert, I seem to recall Reische coming out with their unit about the time I got my Shelby in 2011. It may have been the only game in town when your car was converted.

 

[palacios289]

Just had a text conversation with Reische. What a standup company.
So the Motorad and Reische thermostats have a longer bypass stem than OEM. According to Reische, this would mean the bypass would close sooner than OEM due to extended length.

 

[Catmonkey]

Do did they say whether the Motorad extends enough to close off the by-pass?

 

[palacios289]

According to Reische, yes the Motorad would extend enough to close the bypass.
It seems by looking at a OEM thermostat, the OEM plate would have to extend the furthest to close off the bypass.
Both the Reische and Motorad seem to have the plate at roughly the same height.

 

[Robert M]

Robert, I seem to recall Reische coming out with their unit about the time I got my Shelby in 2011. It may have been the only game in town when your car was converted.

That may be the case, my build was a couple of years earlier. I just bought one of the RAT 170 degree for a side-by-side comparo with the Reische 170. It will require a removal of my Shelby installed MotorRad to get a 3-way comparo.......actually it will be 4-way with the oem GT500 t-stat.........

R

 

[Robert M]

If a t-stat seal is stuck and the t-stat is hard to remove, what is the best way to remove the t-stat without damaging it? Even the Reische info. mentions the seal/t-stat may be stuck.........

R

 

[Catmonkey]

I'd try a little WD-40. The seal isn't anything special if you tear it. If it's hard, you may want to replace it anyway.

You can use a screwdriver to pry on the exposed part of the housing, but try not to damage it in doing so. If it's stubborn, try from a few different angles until it starts to loosen.

 

[palacios289]

Here we go. Motorad 354-180 This is some kitchen stove top testing. Ha
First is closed. 1.501 inches.
Second is with thermostat open. 1.925

i measured as best as I could from bottom thermostat plate to top of the bypass plate. Is this enough to close the bypass port? I guess I need to know test a OEM and take the same measurements.

 

[Catmonkey]

Well, we know it's expanding in the right direction. If not blocking the passage, it will be restricting the flow of coolant going to the bypass.

 

[Robert M]

Here we go. Motorad 354-180 This is some kitchen stove top testing. Ha
First is closed. 1.501 inches.
Second is with thermostat open. 1.925

i measured as best as I could from bottom thermostat plate to top of the bypass plate. Is this enough to close the bypass port? I guess I need to know test a OEM and take the same measurements.

View attachment 281292
View attachment 281293

Yes, how did this compare to the Ford engineered oem thermostat?

R