Radiators

[Adz2332]

Afternoon all,

 

whats the go to these days on quality radiators for track use? kayo still the one?

[Dose Pipe Sutututu]

PWR if you're rich, superb coolers OR Koyo, just works.

I would avoid that brand that's big in America and looks like rebranded eBay radiators with flashy marketing.

[bcozican]

Koyo still decent do most jobs - $700

Recently wen PWR crossflow circa $1100 found big difference in cooling

[Adz2332]

14 minutes ago, bcozican said:

Koyo still decent do most jobs - $700

Recently wen PWR crossflow circa $1100 found big difference in cooling

 

big difference? at the moment sparesbox have 42mm or 52mm PWR for $850.

 

WHich did you go?

 

15 minutes ago, Dose Pipe Sutututu said:

PWR if you're rich, superb coolers OR Koyo, just works.

I would avoid that brand that's big in America and looks like rebranded eBay radiators with flashy marketing.

who might that be?? 

Edited May 25, 2023 by Adz2332

[bcozican]

https://shop.pwr.com.au/55mm-2-pass-crossflow-radiator-nissan-skyline-r32

 

55mm Crossflow is what I got went from 42mm (i think) typical koyo

koyo was fine but started to struggle on my setup as I pushed it harder - above cooler change has done the job well since no probs

[Murray_Calavera]

14 minutes ago, Adz2332 said:

who might that be?? 

Rhymes with Bishitomo.

[Adz2332]

22 minutes ago, Murray_Calavera said:

Rhymes with Bishitomo.

ohhhhhhhhh haha! 

[Adz2332]

35 minutes ago, bcozican said:

https://shop.pwr.com.au/55mm-2-pass-crossflow-radiator-nissan-skyline-r32

 

55mm Crossflow is what I got went from 42mm (i think) typical koyo

koyo was fine but started to struggle on my setup as I pushed it harder - above cooler change has done the job well since no probs

\https://www.sparesbox.com.au/part/pwr-radiator-55mm-suits-spal-16-fan-x-flow-fits-skyline-r33-gtr-gts-t-pwr5652sp

same one! ill grab it thanks for the info!

[Komdotkom]

I've got a cross flow in mine from Race Radiators, it's a twin pass 55mm core. It was a fair bit more than a PWR but has a swirl pot and a few other things I wanted which you can't get off the shelf.

He's the Victorian agent for PWR and does their warranty stuff, he doesn't use their cores.

[bcozican]

39 minutes ago, Komdotkom said:

I've got a cross flow in mine from Race Radiators, it's a twin pass 55mm core. It was a fair bit more than a PWR but has a swirl pot and a few other things I wanted which you can't get off the shelf.

He's the Victorian agent for PWR and does their warranty stuff, he doesn't use their cores.

Nice. Thats what I was going to get but at the time he couldnt get cores and said didnt know when he vould get me one

[niZmO_Man]

Do you have good ducting for the radiator? I've heard it can make quite a difference.

[Komdotkom]

On 25/05/2023 at 5:54 PM, bcozican said:

Nice. Thats what I was going to get but at the time he couldnt get cores and said didnt know when he vould get me one

It's a nice bit of gear, probably overkill but you know how it is 

[Adz2332]

alright stupid question,

Lever or no lever radiator cap? whats the point of a lever?

And what PSI cap should i get? race only car

[Duncan]

No idea if lever is better or worse, I've only every used the push down screw cap ones.

I run 1.3 bar cap on the race car and have got >130o coolant without blowing anything, not really recommended as best practice. Of course if you go higher pressure cap it is worth changing all water hoses to silicone and good hose clamps instead of the factory clips

[Dose Pipe Sutututu]

(personal opinion) I prefer to run a 1.0 to 1.1 bar radiator cap, FWIW with my 1st motor (stock), I had a 1.1bar radiator cap using an off the shelf 42mm PWR radiator and the car was thrashed and cooled down for a good 10 laps on a near 40 degree day at Wakefield Park.

Water temp never went past 120 C (from memory) and no coolant was gurgling, albeit it did have a 25 row Setrab oil cooler. I even used the A/C on cool down laps lol.