LoneStarS30Z

iTrader: (2)

How's it going folks, here's the ordeal, my automatic's radiator has sprung a small annoying leak which is turning into a medium, very annoying leak.

I have a Koyo rad for manual trans that I was holding onto in anticipation for the 5 speed swap, but time is running out. I've searched and read about people bypassing the trans cooler in the radiator without problem, but all those threads were 5+ years old, so I was wondering if the solution still stands.

Some suggested running another trans cooler, some said the trans cooler in the radiator was only necessary for colder climates which isn't a problem for me.

Would any of you guys happen to know the bottom line, yes or no answer, can I swap this manual only radiator in while bypassing the lines without any ill effects?

If the answer is yes, how should I route the coolant lines that go to the radiator?

Thanks guys.

RotaryEvolution

iTrader: (30)

get an aftermarket supplemental cooler and bypass the radiator, i have done it and it works fine.

those who say to omit the cooler completely have no clue.

LoneStarS30Z

iTrader: (2)

Mine showing me what size cooler you used and where you placed yours?

I'm sure going that route should be a couple hundred dollars cheaper than a new radiator that'll see just a few months of work.

LoneStarS30Z

iTrader: (2)

I'm thinking either one of these should work just fine right? Just gotta get under the car and figure out placement.

RotaryEvolution

iTrader: (30)

either of those will work, the second will mount a little bit easier for this application though.

i don't have the size, brand or fitment available. i installed it about 2 years ago onto a customer's car.

LoneStarS30Z

iTrader: (2)

Someone local has a cooler from a Z32 I'm going to give a shot, looks like it should work fine.

http://z32.wikispaces.com/file/view/...Oil_Cooler.jpg

Sorry at work, can't embed pics.

He's On Toroids

iTrader: (2)

While you are at it add a ATF temperature gauge. This way you can make sure that the fluid is up to operating temperature before getting on it. Also, you get the added benefit of monitoring the ATF temp so you know when you need to back off.

If you have to do it the cheap way, the trans will shift differently until you reach operating temperature. But, this is a poor tell to watch for. If you drive the car hard, get the gauge. Or, start saving for a new trans.

LoneStarS30Z

iTrader: (2)

That's a good idea, but this is really just a temp fix. I have everything I need for the 5 speed swap besides a shifter, starter and flywheel.

As of now the FD see's little hard driving, premium gas is insanely expensive out here, nearly $7 a gallon!!! I've driven hard for extended period only twice out of the 4 months I've owned it. I have to actually plan and schedule my finances before I can get some good spirited driving in. So hopefully after this swap I can trim my mpg for the better, I'm not a fan of this automatic at all.

But thanks a ton for the input fellas, I can rest a little easier with the Koyo doing it's thing.