ATF cooler (CVT in particular) discussion

[twistedichc]

TS car gb quite sensitive. High speed for a period of time and it went in safe mode. My friend had the same car and he is aggressive driver meaning a lot of high revs in town driving and also it went to safe mode, so adding a cooler for this particular car seems like a good move....
The first batch of LGT also seems to have problem. Cannot reach Genting, as half way went into safe mode also. Seems later batch all have atf cooler...

In that case, if proven problem will be solved, than now it's the option that matters rite? By u'r POV bout the cooler, IMHO, the single tube should do coz at point of exit of the cooler the ATF have the cooler temp entering back the gb. y, coz the ATF route to exit is longer so the cooling proses is longer.

 

[stupidcar]

. y, coz the ATF route to exit is longer so the cooling proses is longer.

Good point.

---------- Post added at 12:21 AM ---------- 6 hour anti-bump limit - Previous post was at 12:20 AM ----------

Stupidcar, is that the breather? It has to be sealed with a one way valve cap. The preve has a new issue where the cap disappears or isn't put back, then when rain or driving over a flooded area the gb inhales inadvertently sacking in water. Water plus atf = bad

---------- Post added at 02:16 PM ---------- 6 hour anti-bump limit - Previous post was at 02:15 PM ----------

BTW other type of cars have a very long breather hose that goes all the way to near the air box. So prevents water seepage

No that's not. Its a somesort of ATF temp sensor. I have no idea what reads it. Tcu or ecu...or where to.

 

[vr2turbo]

In that case, if proven problem will be solved, than now it's the option that matters rite? By u'r POV bout the cooler, IMHO, the single tube should do coz at point of exit of the cooler the ATF have the cooler temp entering back the gb. y, coz the ATF route to exit is longer so the cooling proses is longer.

TS question is not which is cooler but which one not so restrictive in atf flow.....
Flat but multi tube or round but single tube?

 

[twistedichc]

TS question is not which is cooler but which one not so restrictive in atf flow.....
Flat but multi tube or round but single tube?

As per TS quest, IMHO multi flat tube may have better flow volume in the tube itself but the outlet still will be 1 single hole & definitely will be back pressure thus bit more restrictive.

 

[vr2turbo]

As per TS quest, IMHO multi flat tube may have better flow volume in the tube itself but the outlet still will be 1 single hole & definitely will be back pressure thus bit more restrictive.

This is what he wants to find out......

 

[twistedichc]

Where's Bro Izso, Have he made his mind for this thread??

 

[vr2turbo]

Where's Bro Izso, Have he made his mind for this thread??

He is busy, probably next week.....

 

[Izso]

In that case, if proven problem will be solved, than now it's the option that matters rite? By u'r POV bout the cooler, IMHO, the single tube should do coz at point of exit of the cooler the ATF have the cooler temp entering back the gb. y, coz the ATF route to exit is longer so the cooling proses is longer.

Not really. The length of the routing is about the same length as the stock routing. I think the only thing that might be lengthened is the path within the cooler itself. The stock cooler is just one straight tube.

TS question is not which is cooler but which one not so restrictive in atf flow.....
Flat but multi tube or round but single tube?

Exactly. I'm also trying to find out which one will have an effect on my car, constant oil pressure or a reduced oil pressure will affect the performance of the GB.

Where's Bro Izso, Have he made his mind for this thread??

Not yet decided. Just FYI, those tube coolers have fins inside the tube themselves, so in terms of pressure loss, those fins will bound to affect the pressure to some extent but cooling wise it'll probably be as good as stacked coolers.

Dammit. This is just a cooler. Why so difficult.

 

[vr2turbo]

Not yet decided. Just FYI, those tube coolers have fins inside the tube themselves, so in terms of pressure loss, those fins will bound to affect the pressure to some extent but cooling wise it'll probably be as good as stacked coolers.

Dammit. This is just a cooler. Why so difficult.

Inside the tube got fins? Then flow is not good?

 

[marv3]

Wahhhhh.....Just a simple ATF cooler also so much to think about.....Looks like modding car not easy.....Bukan main pasang saje....

Correct me if im wrong but to me i think the Fin type will cool better (fluid spread out to little fins faster to cool) but flow is slower and the tube will cool less efficient but flow better. I just use my imagination on how the fluid will flow. Example, the tube type is like those curly straws. If you put fluid through it, its all one way. Go straight, then left right left right, habis. The fin type, from fluid entry point, have to travel through the other little fins (i.e. like in male toilets those open urinal where guys stand in a row to piss, u notice how the flush doesnt really come all at once. Nearest to the water tank hose comes out first, follow by the rest), then after travel through the fins , have to travel back to the exit point (bottle neck effect).

But then again, this is just base on the assumption if the tube type, is empty inside. But if inside tube got fins, then i dont see very much difference. Depends on how much fins the tube have.

If all same, then i go for stacked fins type (if can fit my car), coz it looks nice...Hahahahahahah

Just my humble 2cents worth ya......

 

[Izso]

Inside the tube got fins? Then flow is not good?

Debatable. Have a look at this :

http://www.alamomotorsports.com/pmc/pmc_engine_oil_cooler.html

 

[vr2turbo]

Debatable. Have a look at this :

http://www.alamomotorsports.com/pmc/pmc_engine_oil_cooler.html

I would not call them fins but more like partition. Accordingly to them more contact surface to take heat away....:rolleyes:

 

[Izso]

I would not call them fins but more like partition. Accordingly to them more contact surface to take heat away....:rolleyes:

Still debatable whether it'll restrict flow or not wor

 

[vr2turbo]

Still debatable whether it'll restrict flow or not wor

Just plug either leh! Sure to be better then your original......

 

[gunnerzz]

ya la bro...
plug it in and if u dont feel good,put it up for sale in here.
i know people will fight each other for your used cooler.

come to think abt it,why dont u go for the easiest to install and one that reduces complicated joint and possible leak in the piping system?

both will work but the stacked fin is better as the fluid contact point is increased.i dont think it restrict flow.i said this because if u combine the fins,u will get a comfortable space in total for the atf to flow.
just take the radiator for example.go ahead and opem the cap then rev the engine to 3k rpm.does water comes gushing from the radiator?nope,because it has lots of the small water way or fins.

another example.200 people in a room and u ask the to get out using one door,it will be messy.flow is slow and there will be bottleneck at the door.
same scenario but provide 5 door for them to get out.flow is better.

so,stack fin does not affect pressure.

 

[vr2turbo]

ya la bro...
plug it in and if u dont feel good,put it up for sale in here.
i know people will fight each other for your used cooler.

come to think abt it,why dont u go for the easiest to install and one that reduces complicated joint and possible leak in the piping system?

both will work but the stacked fin is better as the fluid contact point is increased.i dont think it restrict flow.i said this because if u combine the fins,u will get a comfortable space in total for the atf to flow.
just take the radiator for example.go ahead and opem the cap then rev the engine to 3k rpm.does water comes gushing from the radiator?nope,because it has lots of the small water way or fins.

another example.200 people in a room and u ask the to get out using one door,it will be messy.flow is slow and there will be bottleneck at the door.
same scenario but provide 5 door for them to get out.flow is better.

so,stack fin does not affect pressure.

Good example, but best I like is fighting over the used cooler......hhahhahahhahhaha

 

[Izso]

Good example, but best I like is fighting over the used cooler......hhahhahahhahhaha

Yeah, that part I didn't understand.

 

[gunnerzz]

Yeah, that part I didn't understand.

Less one competitor....
now only vr and me in the running....

 

[Izso]

:hmmmm:

I don't get it. If I didn't like either one I'd use the one I don't like on my other cars la. Probably the Innova if it doesn't already have a cooler. Why would I wanna sell it at a loss?

 

[vr2turbo]

:hmmmm:

I don't get it. If I didn't like either one I'd use the one I don't like on my other cars la. Probably the Innova if it doesn't already have a cooler. Why would I wanna sell it at a loss?

Ah! If not wrong, you did sell one recently.......hahhahahhahaa