Combating the heat

[BRZPDX]

Originally Posted by AJPG

@BRZPDX are you using the stoke radiator? From a couple of post ago it look like it, if so you are more than ok! I could live some time with that at autocross, but a bigger radiator would let you drive "maybe all day without need to cool down".

The fans, well they are use (or designed to be use) when the car is NOT moving, as well as the shroud... They won't pass more air through the radiator, compared with 20-25mph "car running".
The oil cooler, I'm really interested, you sir have better control that most on turbo, and that's the only thing holding me back to change from SC to turbo. By the way how many rows have your oil cooler?

*the rule is: if your car make more hp it will need more heat dissipation capacity, but if recycle exhaust heat then is no need, it's a urge.*

Yea I have a stock radiator at the moment. I can't exactly remember why but I was told setting the fan temps too low isn't a good thing either (something about coolant staying in the radiator too long or something).

The oil cooler I use is this one:
http://www.tomiokaracing.com/index.p...hermostat.html
it says 16 row.

I really want to resolve this high coolant temp issue (220F just driving stop and go traffic today again) and the next step I am thinking is drilling holes in the front bumper, FB shroud for stock rad/fan set up. My custom TC kit is so tight in their, I am not sure if the thicker Koyo Rad will fit in their without using thin spal fans.

Whether its Koyo or stock rad, I still think the issue is air flow and fans. Not the radiator it self.

[sw20kosh]

Originally Posted by BRZPDX

Whether its Koyo or stock rad, I still think the issue is air flow and fans. Not the radiator it self.

This.

People are not gonna wanna hear this but the koyo and the stock rad saw the same problem with temps at our local racetrack on pretty much identical turbo charged setups.

The problem is air flow not core thickness. But I do have a feeling if you get massive airflow increase through the radiator, the KOYO might start to show its superiority. As it stands there is just so little airflow with the bumper beam + FMIC + oil coler etc.

[CSG Mike]

Originally Posted by mkivsoopra

Would this design work better?

Theoretically, marginally better.

[mkivsoopra]

Originally Posted by CSG Mike

Theoretically, marginally better.

So... Something more like this?

[AJPG]

Originally Posted by CSG Mike

Theoretically, marginally better.

Yea right! Theoretically marginal better, but it look so bad ass!!!
If mine wasn't a highway sleeper I would install it today!!!

[AJPG]

Originally Posted by BRZPDX

Yea I have a stock radiator at the moment. I can't exactly remember why but I was told setting the fan temps too low isn't a good thing either (something about coolant staying in the radiator too long or something).

The oil cooler I use is this one:
http://www.tomiokaracing.com/index.p...hermostat.html
it says 16 row.

I really want to resolve this high coolant temp issue (220F just driving stop and go traffic today again) and the next step I am thinking is drilling holes in the front bumper, FB shroud for stock rad/fan set up. My custom TC kit is so tight in their, I am not sure if the thicker Koyo Rad will fit in their without using thin spal fans.

Whether its Koyo or stock rad, I still think the issue is air flow and fans. Not the radiator it self.

So you have the FB kit!? Congrats outstanding whp and service!!
And I think the koyo rad will not fit
Also agree with the fans and shroud, dose are vital! And you are correct is the airflow but the bigger the rad the lower flow need to cool
But you HAVE to cool your turbo! Also your engine, I have 20 rows for basically NA... Well have a vortech at 9 psi. For that setup the koyo rad is right but need 20 rows of oil cooler and use 7.5qts. And the SC have his own oil cooler + separate oil pump...

Originally Posted by sw20kosh

This.

People are not gonna wanna hear this but the koyo and the stock rad saw the same problem with temps at our local racetrack on pretty much identical turbo charged setups.

Yes! Yes! Yes! And off course! The 10-16 rows oil cooler are mostly ok for NA or SC, but for turbo at track? I use 20 rows and is SC, sure 20 rows aren't enough for tracking turbo.

The problem is air flow not core thickness. But I do have a feeling if you get massive airflow increase through the radiator, the KOYO might start to show its superiority. As it stands there is just so little airflow with the bumper beam + FMIC + oil coler etc.

Sorry airflow is married to core thickness, cross section area likes to look
So can't fit a bigger rad, and the oil cooler + intercooler are on the way...
Mmmmm
Bigger oil cooler behind fog light? 32 rows?
Really looking to solve this issue as I may go Turbo.

[Die$eL]

The Subaru STi used to come with a mist spray for the intercooler. Would something similar not help?

Also a black intercooler apparently expells more heat...
[ame="https://www.youtube.com/watch?v=f1QL9veQaNg"]https://www.youtube.com/watch?v=f1QL9veQaNg[/ame]

[Pete156]

Originally Posted by Die$eL

Also a black intercooler apparently expells more heat...

Thanks to AVO for doing their R&D homework. My bottom mounted turbo and black FMIC keep my motor cool all the time with no need for a vented hood. I was running the same autocross in Portland Sunday (96 degree heat) as BRZPDX and with the stock cooling system did not see temps anything close to his.

[CSG Mike]

Originally Posted by mkivsoopra

So... Something more like this?

I was gonna say that front and hood screams Andrew Brilliant... until I realized that it was the Under Suzuki car and it IS Andrew.

Yes, notice how every vent is louvered, and at the front.

[Dipstik-sportech]

Originally Posted by Pete156

Thanks to AVO for doing their R&D homework. My bottom mounted turbo and black FMIC keep my motor cool all the time with no need for a vented hood. I was running the same autocross in Portland Sunday (96 degree heat) as BRZPDX and with the stock cooling system did not see temps anything close to his.

Maybe he was just driving harder........lol

[mkivsoopra]

Originally Posted by CSG Mike

I was gonna say that front and hood screams Andrew Brilliant... until I realized that it was the Under Suzuki car and it IS Andrew.

Yes, notice how every vent is louvered, and at the front.

Haha yep, pulled it from one of the articles about him. Known him from before his timeattack days

[Sellout]

Originally Posted by mkivsoopra

Haha yep, pulled it from one of the articles about him. Known him from before his timeattack days

Same... He used to tell stories on Supraforums heh

[crazyfrenchbiker]

Originally Posted by Die$eL

The Subaru STi used to come with a mist spray for the intercooler. Would something similar not help?

I was curious about these types of systems as well and was considering putting one on my intercooler. Is there any downside?

[Synack]

Originally Posted by Die$eL

The Subaru STi used to come with a mist spray for the intercooler. Would something similar not help?

Also a black intercooler apparently expells more heat...

Watched the whole thing, pretty cool.
The only benefit to having it black versus normal color is when the car is stopped or driving slowly such as in traffic or at a stoplight. As soon as you're moving again at a respectable pace the black intercooler has no more effectiveness than a silver intercooler. You probably wouldn't see any benefits at all on a track. Maybe a little at the drag strip right before your launch.