definetly buying one. Are you going to include a fan with the new cooler.

 

speed = fan.. you normaly dont fan a tranny cooler

 

Just because a heat transferring core "looks" good does not mean it is . Fact is the cooler in the MR have already clearly shown they are not that efficient . When it comes to cooling this fluid we need a good core that will transfer heat at a faster rate base on flow . You have X amount of time while the fluid in the core , that fluid is X amount of temp . Now the core MUST be able to transfer enough hate to have a significant amount of change at the source which is in this case where fiction is taking place . The idea behind cooling the fluid is to be able to cool off the friction areas and that cooling takes place due to heat transfer . Installing a fan will help a bit but the real benefit will come through a replacement . As time goes along we'll all learn more about this system .

 

I agree with you in all points, (didn't want to start an argument ) however all it may take is a fan to take that "edge" away. Airflow through the core is important and a bigger core would definitely help heat transfer. Lap after lap it will just get more and more heat soaked. I've got a Hi-Tek cooler here we may try that has a t-stat to control the fan.
Do you happen to know what the temp is that causes the ECU to go into limp mode?

 

LOL , as long as we can have an adult conversation it can never be an argument I have some notes written down from a training class but I do not recall that number right now . The tranny temp is important and I've heard someone ask why not just rise that sensor reading like we do for water temp . That will be an issue because the car will also need ECU programming and prolong heating will also cause a distortion of the surfaces which in its self will lead to failure over time . We're looking to increase the cooler capacity and its efficiency . By bringing up the capacity that also gives us a better turnover rate for the fluid giving us cooler fluid . I will look in my notes later tonight when I get home and find you that temp info .

For now I think that the idea is to do something not too expensive that will help The MR owners enjoy their cars a bit more and at the same time give them a better piece of mind knowing they have a cooler working transmission . I would say an upgrade like this will be best for those that race their cars or that live maybe out west .

 

Yeah, it is very wise to upgrade the cooler\add a fan before road racing.
Don't need the trans to die early!

 

If the SST is similiar to the std auto transmission in that it needs line pressures .. you may have to worry about pressure drop going thru a bigger cooler .. maybe it's on the return line side .. maybe its not .. I don't know ..

Or maybe running 2 coolers in series
I'm going to install the fan .. and if that doesn't work I'll get a bigger cooler (or 2 ) .. .. Now to find SSTF

Lastly .. the temp for the previous auto evo where it triggers failsafe was 120 degrees Celcius .. Don't know if the number is close ..

 

Its very important to cover all possible avenues for failure , pressure drop can be an issue thus why we just haven't taken some random cooler and installed it . We must have a unit which will not only flow great but transfer heat with great efficiency .

 

You guys are great! What do you have in mind that can help with this? Please keep us posted!

 

Thank you sir We have worked on a like system as the MR now has and it can be done it just a matter of getting one apart which we're working on that . The R&D is expensive so we're waiting on a low-cost transmission . We'll have the cooler out shortly and the internal kit will take some time ..

 

You said the internal kit will take some time, but until it does come out, how much power do you think it can take before there are problems with it?

 

You plan on making upgraded clutch packs???

 

Most of the issues you'll encounter will be because of heat , so heat is a direct affect of how you drive the car ; in other words you can make low power but drive VERY aggressively and make tons of heat . We'll soon have some more testing time with the MR and a new cooler will be ready , taking some random cooler and placing it in a 40k is not a smart thing to do so we're taking our time to be sure we do a good job for you guys .

 

Thats the idea but we're looking at some time before that happens .

 

arc has a trans cooler core