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Author: Subject: Radiator Choice????
sammini7
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Building: GTS Panther (Honda K20A + RX8 6 Speed G.Box)

posted on 10/2/19 at 10:28 PM Reply With Quote
Radiator Choice????

Hi,

I have installed my K20A engine in my build and I am in the process of selecting a radiator, I am looking for a radiator good for up to 300bhp. Any ideas guys?

Regards

Sam

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loggyboy

posted on 10/2/19 at 11:39 PM Reply With Quote
How much horsepower do radiators give?
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Angel Acevedo

posted on 11/2/19 at 05:05 AM Reply With Quote
quote:
Originally posted by loggyboy
How much horsepower do radiators give?


Witty answer,
But A large percentage of energy contained in fuel is dissipated as heat.
Therefore not bad phrasing for the question, I think...
I am still thinking on what to use on my 5.0.
Either an old style rad, or a new style/tech rad from a modern engine of the same HP rating.





Beware of what you wish.. for it may come true....

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big_wasa

posted on 11/2/19 at 08:41 AM Reply With Quote
I havnt run it yet but I've just bought a 55mm thick alloy rad from Coolex on a polo frame format. It's modified with the in and out at opposite sides to make it a single pass. Nothing bigger is gong in there. But they do a 70mm thick one.

I am hoping it will be upto the job.

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Daf

posted on 11/2/19 at 08:55 AM Reply With Quote
quote:
Originally posted by big_wasa
I havnt run it yet but I've just bought a 55mm thick alloy rad from Coolex on a polo frame format. It's modified with the in and out at opposite sides to make it a single pass. Nothing bigger is gong in there. But they do a 70mm thick one.

I am hoping it will be upto the job.


I have a 55mm one from coolex exactly as descrived above. On the standard polo rad my fan was kicking in all the time, changing over to this though it never comes on anymore. Although I only have to dissipate ~180 horses worth of heat.

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swanny

posted on 11/2/19 at 09:32 AM Reply With Quote
I have a dolomite sprint rad in my locost. engine is a 4litre rover v8. seems to have done a good job over 8000 miles, and several trips to le mans in the sunshine
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40inches

posted on 11/2/19 at 09:37 AM Reply With Quote
I used one of these eBay Item Keeps the Jag engine at around 85 degrees, whatever the weather.
Done a couple of thousand miles, so far so good

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ian locostzx9rc2

posted on 11/2/19 at 03:20 PM Reply With Quote
Big vote for coolex radiator
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02GF74

posted on 12/2/19 at 06:54 PM Reply With Quote
Depends on budget and space where it will fit, as well as inlet/outlet position and to lesser extent diameter.

First port of call is on a radiator manufacturer website to look at radiator dimensions fitted to cars with similar bhp.

Once you have chosen a few that fit, see price and take a look at eBay if an aluminium radiefor the car/model exists and in budget.

The last resort is custom, down side it is ££££ and secondly not being a standard part may take a while to get a replacement.





Visit China. Meet the child that made your trainers.


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DavidW

posted on 13/2/19 at 07:40 AM Reply With Quote
I had a standard polo rad and it couldn't keep cool on a long hot track session. Swapped for the Coolex version which seems to have cooling capacity to spare.
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