Got Over 400kw Atw?

[MrStabby]

What has boost pressure got to do with it?

Thermodynamics. Higher boost pressure = more heat.

[Roy]

Thermodynamics. Higher boost pressure = more heat.

For the same turbo yes. But when people are running different turbos etc then the thermodynamics of each compressor vary greatly and I think its an assumption to thing that say a GT35R running 20psi will heat the inlet air more then -5s at 17psi

[R32 TT]

.....I think what he is trying to say is that a 4L motor on an XR6 requires less boost (since its a bigger container) to get same airflow and HP as a 2.6 Litre motor does all things being equal - and therefore is concluding there is less heat to take out (due to less boost required) and hence a smaller intercooler for same or similar effective output....

[HYPED6]

CFM of air stops intercoolers from working.

We only measure it in PSI because its easy. You will get CFM in - CFM out = PSI drop, regardles of engine.

[Roy]

...I did read that the Hybrid coolers flow real well with very little pressure drop even at some big numbers. But when you look at the inlet temp at the manifold its higher then you would like to see. Whats the general rule of thumb on inlet temps again? Its something like 10deg C is 1% of hp ?!?!?!?

What is peoples experience of intercoolers and inlet temps? I have alway observed an inlet temp within 20deg of what my AC says is ambient temp. No idea if thats good or not...i know I have a HKS air filter and no cold air shroud around it

[SiR_RB]

How good are ARC coolers? Got one on my gtr, looks to be 70ish mm thick, delta fin style I think, definetly not bar and plate or tube and fin...

Would they support mid to high 300kw at 20 plus psi? It isnt that thick, could this be a problem?

It Came with the car otherwise I would of still be running the stock one lol

[Marko R1]

Well its better than the OEM cooler!

[Marko R1]

Paul (piggaz) showed me his cooler when I was at his place...he paid a bomb for it and I'm sure that was an ARC, good brand.

It was in his bedroom, scary stuff haw haw

[Piggaz]

How good are ARC coolers? Got one on my gtr, looks to be 70ish mm thick, delta fin style I think, definetly not bar and plate or tube and fin...

Would they support mid to high 300kw at 20 plus psi? It isnt that thick, could this be a problem?

It Came with the car otherwise I would of still be running the stock one lol

It's fine. Steve has a 70 mm ARC well past 400.

Daniel with the Midori 34 has a 70 mm ARC and has cracked 400 with 2530's.

[Marko R1]

I had a 120mm hks cooler on my black gtr

..that was nice for a 'brand name'

[SiR_RB]

It's fine. Steve has a 70 mm ARC well past 400.

Daniel with the Midori 34 has a 70 mm ARC and has cracked 400 with 2530's.

Awesome ! That's great news for me than

[SiR_RB]

You guys running 400kw + are you still using the stock rubber intake pipes between AFM's and turbos??

[Marko R1]

I was using rubber hoses from china with t-clamps making over 400awkw

[Piggaz]

Steve is, all Racepace cars do, I don't. I think I lost a hose at some point so I just went aftermarket.

[R31Nismoid]

Interestingly they mention the magic 400kw on their front page and offer a 'big' intercooler for it...

Doesn't say how big - just in the 'intake size'.

And read the rest of the sentence

If chasing numbers in the 400 rwkW plus range you can order what is known in-house as the BIG BIG cooler. Still using the same intercooler core this until has a larger alloy cast end tank that takes a 63mm inside diameter hot side intercooler pipe

Anyway I'm going on holidays for a fortnight. Keep discussing, i'll return and call you all wrong in 2 weeks

[R32 TT]

Oops... What did I miss?

Do you mean the bit about it being the same core? Bris already pointed that out.. Or something else?

[R31Nismoid]

Just meant the cooler is the same size, end tanks are different as they state.

Not sure what it means by "big big" if it's the same core... (im confused also)

[R32 TT]

Yeah it's weird. Bigger end tank you wouldnt think would make any real difference..

[GTR_JOEY]

That graph is hilarious btw...

There would be some leaky eyes if a few big $$ spenders on this forum took a look bahaha

[The Bogan]

3500 RPM = 150 RWKW 400 nm

4000 RPM = 210 RWKW 500 nm

4500 RPM = 300 RWKW 610 nm

5000 RPM = 355 RWKW 660 nm

5500 RPM = 395 RWKW 655 nm

6000 RPM = 412 RWKW 645 nm

6500 RPM = 412 RWKW 590 nm

7200 RPM = 412 RWKW 545 nm

Limited to 7500 RPM, and running out of injectors