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Cooling Systems Cooling Systems - Radiators, Water Pumps, Fans, Coolant, etc.


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April 1st, 2020, 04:14 PM   #1
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I Ride: Husaberg 650
Best possible radiator and cooling for 650

Hi!
I am building a 650 with a crosskart engine - producing 113whp in engine 93 on wheel...
On the cross kart they had a large radiator and a large fan.
Wondering for my Berg if it were better to change from standard to new 570 setup f.ex - with two separate radiators so i can have to separate fans... ? Any idea of if there is a difference in cooling effect on the 650 radiator and the new system on 570 (and many many other bikes.. )

I am also thinking to make an oil cooler.

workshop ho built the engine says standard radiator and the biggest fan i can get should be enough..
But if I can make it better - I will...

I also have radiator from KTM 990 R and Husqvarna 701 lying - anyway to find out what cooling they deliver compared to 650 or 570 setup ?

Thank you!

Last edited by mickey5; April 1st, 2020 at 08:38 PM.
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April 2nd, 2020, 03:53 AM   #2
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surely measuring the temperature is the best way? they used to say running at 60d C then 65d C was best but they were at 70d C last time I read a tech sheet.

also, lay the radiator at 45d and have a scoop at the front.

not sure which is the best fan but a look round a Motorcycle breakers would soon source one perhaps....and then tell all of us too!

113bhp. you've been to see my mate Knut!!!!! LOL!!!! ask him about the "tuned rotovator"!!!!

Taffy
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April 3rd, 2020, 03:42 AM   #3
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I had used the larger one from the kx 125
It does need welding and works great

All info are here on what was done Paolo6 a new start
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April 3rd, 2020, 03:52 AM   #4
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Also if you need an oil cooler polska a member in here is the best guy to contact,....and i am sure he posted somewhere the contact of the guy who can make them in one of his thread
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April 3rd, 2020, 08:58 PM   #5
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Hi mate. Yes I made cool engine oil cooler/filter. Improves filtering, cooling oil and doubles oil capacity. Best is to just google - 3 liters of oil capacity in a Husaberg. It'll take you there. J just don't want to repeat myself, again. There's lots of information, very good set-up and cheap. Does require some elbow grease.
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April 4th, 2020, 06:12 PM   #6
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Hi - sorry -my bad - 93 on wheel and 103 in engine - not 113 - but ut us very stable and was used in one year fro racing with just normal maintenance... , sorry for the typo.. But still , gonna be fun to ride!

https://www.facebook.com/kvstuning/v...51872765875730

Putting in a link to a FB video of dyne results when finishing the engine!

Thanks for all the help!
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April 4th, 2020, 06:16 PM   #7
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Thank you Taffy!

He he , yes it was built on Geilo in Norway by KVS Tuning and Knut Sveiningård! Excellent guy! I will ask!
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August 18th, 2020, 01:37 PM   #8
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Tell us about this engine, I'm really curious about the work done
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August 20th, 2020, 02:22 AM   #9
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Hi! I spoke to the builder, and he was naturally not very interested in me listing up everything that is done with the engine. He said, this is my livelihood So everyone that wants to know this , needs to buy the work from him and the open up the engine and see So sorry about that.

But he said there was many many custom made parts from all over the world, compression is key for high hp.

Almost done assembling the bike, will return with info when I have
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August 20th, 2020, 03:53 AM   #10
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my parts.... clearly from my humour you didn't make 2+2=4.

Taffy
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