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Old 01-07-2018, 09:00 AM   #1
gandolf
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Default extra small rad. location

I have a kawasaki rad I want to put in the system.Where should I connect the in flow and exit too.The bike connecting pipes are 20mm dia.The engine is the 1.6 and the and the main rad is the alloy mini rad.
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Old 01-07-2018, 09:19 AM   #2
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Itís completely up to you wether you fit it before or after the main rad, I would look at where it will fit and which way it would be easier to run the hoses.
Either way it will come off the outlet on the head, into rad 1, out of rad 1 and into rad 2 out of rad 2 and into the engine thermostat at the rear of the engine.
Do you need it? I run a Mini rad and have no issues with keeping the engine cool, sirs right around 90 degrees when driving which is spot on.


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Old 01-07-2018, 03:43 PM   #3
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I'm running an alloy mini rad in my 160 vvc conversion and it doesn't have any problem with cooling, just make sure your cooling fan is wire in to the proper cooling circuit and that it cuts in & out when it should and it should be fine. For piece of mind I have connected in an override switch which I haven't needed to use yet!

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Old 01-07-2018, 08:25 PM   #4
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I would say fitting that radiator in line with the Mini radiator will reduce the flow as the pipes are smaller and actually not cool as good as not fitting it.

The only possible place to run it would be a heater bypass circuit. You may find this over cools though.

I also have standard Mini radiator without issues, including track use.
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Old 02-07-2018, 07:52 AM   #5
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I would say fitting that radiator in line with the Mini radiator will reduce the flow as the pipes are smaller and actually not cool as good as not fitting it.

The only possible place to run it would be a heater bypass circuit. You may find this over cools though.

I also have standard Mini radiator without issues, including track use.
Thanks Andy your suggestion is what I was thinking of .Does the coolant flow throgh the heater without the heater being turned on?

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Old 02-07-2018, 08:48 AM   #6
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Default extra small rad. location

Quote:
Originally Posted by gandolf View Post
Thanks Andy your suggestion is what I was thinking of .Does the coolant flow throgh the heater without the heater being turned on?



Thanks for all help from members.


When the heater is off and with it in the cold position to close the heater valve the flow should be cutoff to the heater.
Are you sure youíll need the extra cooling? Over cooling will mean your oil will not be reaching its optimal operating temperature and will cause unnecessary wear to your engine.


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Old 02-07-2018, 08:53 AM   #7
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The heater circuit has no thermostat control, simply a valve to control the flow through the matrix. I think you could use the small radiator on a separate circuit, tee'd off the heater inlet (top of head) and returned via another tee at the thermostat housing. This would mean the circuit would be constantly flowing coolant. This will have more down sides than benefits. First, the engine will take far longer to warm up. Second, as using the heater pipes, the heater it'self will be rubbish. Third, during cold weather, you may find that it never reached normal temperature which, as Dan says, means the oil won't lubricate properly.

So I suggest if that is the case, fitting a control valve in the circuit but needs to be 20mm bore.

In all honesty, I think a few small holes in the thermostat has done all you are wanting to achieve here without complicated pipework or extra radiator.

This is mine in Phoenix. Works great.

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Last edited by AGoaty; 02-07-2018 at 10:22 AM.
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