turbo trans cooler question

bertis · 14-06-2007, 04:38 PM

dunno if this has been covered before but sorry if it has i'm just trying to get the car ready to drag on the weekend :P.........
i've got a fairly decent btr box that I want to take good care off so i've just bought a low pressure trans cooler and I dont know if its a better idea to run it on its own..... or have the radiator oil cooler in series with it.... is it better to have it cooler or more flow?? how well does the standard cooler flow??

Cheers
Brett.

Christiaan · 14-06-2007, 06:05 PM

run it on its own.. the radiator water runs too hot to cool a btr properly.

Bypass the radiator, run the lines directly to the cooler which sits in front of the radiator.

Is it a big cooler?

bertis · 14-06-2007, 06:56 PM

280x220x19mm its called long tru cool lpd.. I can probably get hold off another trans cooler and run 2 of these if its not big enough??

trick_xd · 14-06-2007, 07:46 PM

Quote:

Originally Posted by 5spd_eb2

I've just bought a low pressure trans cooler and I dont know if its a better idea to run it on its own..... or have the radiator oil cooler in series with it.... is it better to have it cooler or more flow??
Cheers
Brett.

Run it by its self as the radiator water only keeps the trans fluid hot/warm

You say low Pressure ... you had better try it first ..
Hook it up and start your car. When the fluid starts to flow Time it..
IT MUST FLOW MORE THEN 1 LTR IN 15 SECONDS
If it does not then the trans cooler is no good for your auto and will course trouble for you.
A 4sp auto is High Flow and flows 1ltr within 15sec
A 3sp auto is Low Flow and flows 1ltr within 45sec

Christiaan · 14-06-2007, 08:03 PM

Quote:

Originally Posted by trick_xd

Run it by its self as the radiator water only keeps the trans fluid hot/warm

You say low Pressure ... you had better try it first ..
Hook it up and start your car. When the fluid starts to flow Time it..
IT MUST FLOW MORE THEN 1 LTR IN 15 SECONDS
If it does not then the trans cooler is no good for your auto and will course trouble for you.
A 4sp auto is High Flow and flows 1ltr within 15sec
A 3sp auto is Low Flow and flows 1ltr within 45sec

good information there, thanks

sexr6tasy · 14-06-2007, 08:34 PM

Id hook it up to the internal radiator then the outside cooler the theory being it warms up to operating temp quicker which is better for your trans but is also kept at a constant cooler temperature thats what i was told anyway.

galapogos01 · 14-06-2007, 10:14 PM

Quote:

Originally Posted by sexr6tasy

Id hook it up to the internal radiator then the outside cooler the theory being it warms up to operating temp quicker which is better for your trans but is also kept at a constant cooler temperature thats what i was told anyway.

correct. running your trans cold (especially on 0deg days!) aint gonna be good for it. run it thru the radiator, but make sure its relatively new. the main reason people bypass them is to avoid them bursting and making a nice coolant/transfluid soup.

private9 · 15-06-2007, 12:00 AM

Listen to trick_xd on this one! you don't want to be blowing a trans because of a low flowing cooler.

Definitely bypass though - the trans cooler lines have a habit of breaking down in the radiator over time resulting in coolant in your trans and trans fluid in your coolant....not good!

bertis · 15-06-2007, 09:25 PM

well I decided to run it through the radiator simply because its fairly new.... thanks for the info guys...... I got probably 1.3 litres in 15 seconds so cheers trickxd for that info.....
the way it was setup before was dodgy as..... i'm not surprised this thing went through so many transmissions.... it was going through the trans cooler and then back into the radiator before going into the transmission and the lines where doing some nasty bends..... I didnt flow test the old way.... but it wouldnt have been good..... the trans feels a little better on shifts now too..... so glad this got mentioned in a previous thread

....

cheers

Christiaan · 15-06-2007, 10:19 PM

i talked to the brake and clutch guy at work today, and he was saying you want the oil to warm, not hot. You should run it in series with the radiator, so that the oil is at operating temperature, and then goes to cooler to be cooled a little bit .. then back to transmission.

You don't want to bypass the radiator, cos otherwise the oil will become sludgy as it's too cold..

I drive a manual, but if i had an auto, it'd have a cooler shoved on right away!

trick_xd · 15-06-2007, 10:23 PM

if you want to keep it hooked up through the radiator and cooler then do it this way..

from trans to the radiator from radiator to cooler back to trans.

a lot of the times when running the 2 different coolers (radiator & cooler) the radiator where the trans hoses go onto will weep. to get around this most times just use 2 hose clamps on the 1 end of the hose.
put your trans cooler in front of the radiator but dont let the 2 touch as after a while they will rub together and make a hole in one of them.

hope it all works out for you

Cheers

bertis · 16-06-2007, 02:59 AM

done guys..... cheers...... will see if its any better at heathcote today

steven95falc · 16-06-2007, 06:11 PM

Hey Brett hows ya go mate ? all running okay ? What time did you get yourself ?
Cheers,
Steven

bertis · 16-06-2007, 07:11 PM

I got a 13.10 lol...... pretty good for a turbo setup with a stock computer and a rising reg......
I won the fastest forced/nos award

..and was the fastest car there which I really wasnt expecting.. a typhoon was giving me a good run for my money..... coming awefully close to it.....
I got it real late in the day when it was colder but it finished at 4 and at about 5 it had really dropped in temp so prob could have got into 12's if it kept going little longer.....

auto was in top form..... my tyres gave me trouble... couldnt launch with any boost... I could sit their with about 5 pounds but as soon as the handbrake went down it just lost it

trick_xd · 16-06-2007, 09:38 PM

well done 13.1 is a great time forced ..

I want to get to the 13.0 or at best a 12.5 when I hit the bottle in the next few mths.
What speed did you get to ?

bertis · 16-06-2007, 10:36 PM

thanks mate... not much money or time has gone into the mechanical side of this car yet so it was surprising for me and my mates :P... made a good day

105.4 which is strange because I got a 105.8 and ran a 13.4...... but sorta makes sense if I think about the different sort of starts I got..... really struggled with traction unfortunately.....

13.0 n/a????
I remember u got mid 13's or something that amazed me at the fordforums drag day...

nos + turbo hehe.... why not....

Christiaan · 16-06-2007, 10:42 PM

i'd be stoked with a 13.1 for a daily turbo. that's an awesome time.

Maybe grab some slicks for next meet? I'm not sure if BTR's can handle trans brakes so you can boost it up on the line?

A good launch with traction will see you in the 12's with 105mph ..

good luck with it!

trick_xd · 16-06-2007, 11:04 PM

yer I got a high 13 at the last drag day at 105mph
working it out at a perfect run that mph should see us in a 12.5

Have you thought of a brake lock off ..
I have 1 fitted to my car .. I lock off the front brakes that way I can stall up till I spin the wheels .

its just a ball valve in-line at the brake booster the I turn and lock off the front brakes... if I was to do it again I would mount it in the car or at least up through the floor.