Husaberg
Go Back   Husaberg Forum > Mechanical and Technical > Mechanical

Mechanical Mechanical Forum - spinning bits and gyrating bobs


Thanks Tree686Thanks
Reply
 
LinkBack Thread Tools Display Modes
November 8th, 2014, 07:14 AM   #21
Senior Member
 
Joined: Nov 2011
From: Nordic countries

Posts: 928
Thanks: 373

I Ride: Two FE570 -12
With bigger temperature difference, delta T, more heat is transferred. Therefor parallel should be more effective as the delta T will be bigger and over a larger surface. So two parallel warmer radiators should do more work than two in serial as the downstream radiator contains already cooled down liquid.

Flow direction should be warm in on top and cold out at the bottom. That way the temperature of the water will not work against the circulation pump as colder water want to move down.
Thanks from Dr_C

Last edited by jon andersson; November 8th, 2014 at 07:19 AM.
jon andersson is offline  
 
November 8th, 2014, 10:20 AM   #22
Senior Member
 
Dr_C's Avatar
 
Joined: Oct 2003
From: Sweden

Posts: 791
Thanks: 625

I Ride: Husaberg Supermono, Ducati 888sp5
Originally Posted by jon andersson View Post
With bigger temperature difference, delta T, more heat is transferred. Therefor parallel should be more effective as the delta T will be bigger and over a larger surface. So two parallel warmer radiators should do more work than two in serial as the downstream radiator contains already cooled down liquid.

Flow direction should be warm in on top and cold out at the bottom. That way the temperature of the water will not work against the circulation pump as colder water want to move down.
Without a doubt, I would prefer a parallel connection! What about how the flow divides between the coolers? The path with lowest resistance will get more flow than the other. Any problem with that?
Dr_C is offline  
November 8th, 2014, 11:34 AM   #23
Senior Member
 
zaga's Avatar
 
Joined: Mar 2009
From: Portugal

Posts: 1,383
Thanks: 247

I Ride: KTM 300 XC
Hi

With a Y conection on top and bottom, you should be fine.

You're right, but differences shouldn't be noticeable, the best you can do is to try to recreate same conditions, the best you can, in both paths.


ZAGA
zaga is offline  
November 9th, 2014, 01:34 AM   #24
Senior Member
 
Dr_C's Avatar
 
Joined: Oct 2003
From: Sweden

Posts: 791
Thanks: 625

I Ride: Husaberg Supermono, Ducati 888sp5
Hm. Something like this, with the coolant temp sensor incorporated?

Thanks from bushmechanic
Dr_C is offline  
November 10th, 2014, 01:48 AM   #25
Senior Member
 
zaga's Avatar
 
Joined: Mar 2009
From: Portugal

Posts: 1,383
Thanks: 247

I Ride: KTM 300 XC
Yeap
Looks cool

It looks like you will have to cut the pipe of the radiator

As much as you have room to do it, the idea is to have same conditions from the Y to the radiator (length / corners), so the conditions would be as much as possible the same.


ZAGA
zaga is offline  
November 10th, 2014, 03:20 AM   #26
Senior Member
 
Dr_C's Avatar
 
Joined: Oct 2003
From: Sweden

Posts: 791
Thanks: 625

I Ride: Husaberg Supermono, Ducati 888sp5
Originally Posted by zaga View Post
Yeap
Looks cool

It looks like you will have to cut the pipe of the radiator

As much as you have room to do it, the idea is to have same conditions from the Y to the radiator (length / corners), so the conditions would be as much as possible the same.


ZAGA
Yes, that tube had to go. I have welded a short stub there instead. As both outlet and inlet on the engine is on the left side, it's not easy making equal pressure drop across both radiators. I'll just put a plastic strap around the hose as flow control, right Bushie?
Dr_C is offline  
November 10th, 2014, 05:33 AM   #27
Senior Member
 
Joined: Nov 2011
From: Nordic countries

Posts: 928
Thanks: 373

I Ride: Two FE570 -12
I'm wondering if it's so important that it must be equal to both sides..? If one get more water, higher flow, to one side maybe the pressure increases on that side due to temperature difference and friction? And the side with less flow get more time to cool the liquid down which should in theory give less pressure as the colder liquid get heavier.
Also as they get mixed at the outlets I think the temperature difference from a perfect system isnt that big.

I would do it as good as I could but wouldnt waste too much time on it.
jon andersson is offline  
November 10th, 2014, 11:05 AM   #28
Senior Member
 
zaga's Avatar
 
Joined: Mar 2009
From: Portugal

Posts: 1,383
Thanks: 247

I Ride: KTM 300 XC
Right on !
Cheers
zaga is offline  
November 15th, 2014, 02:38 AM   #29
Senior Member
 
Dr_C's Avatar
 
Joined: Oct 2003
From: Sweden

Posts: 791
Thanks: 625

I Ride: Husaberg Supermono, Ducati 888sp5
So, the inlet to the coolers is done with a y-piece and the left cooler's lower tank, will collect the outlet from both coolers before it returns to the pump.







Any ideas on the necessity of an expansion tank, where to connect it and the filler neck?
Thanks from bushmechanic
Dr_C is offline  
November 15th, 2014, 04:26 AM   #30
Senior Member
 
bushmechanic's Avatar
 
Joined: Jun 2007
From: south east WA Australia

Posts: 3,772
Thanks: 1065

I Ride: 2008 700FK, 2002 628FST
I think you have it right in that last pic Dr_C .. overflow straight into the crank vacuum

if its only required for scroteneering a non functional one would do it ?
Thanks from Smash101

Last edited by bushmechanic; November 15th, 2014 at 04:28 AM.
bushmechanic is offline  
Reply

  Husaberg Forum > Mechanical and Technical > Mechanical

Tags
adventures, drc, technical



Search tags for this page
Click on a term to search for related topics.
Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
The Underseat Adventures of CelticDude! CelticDude Fuel 9 September 16th, 2017 02:09 PM
Colorado 2 Day Adventures Exit Tours Marketplace 1 December 14th, 2012 08:58 AM
dr_c piston? popup Tech 8 April 22nd, 2009 05:16 AM
Jetting adventures BelgiqueBasterd Fuel 13 January 20th, 2008 12:50 PM
Dr_C tell us more about the billet rockers! LeFrog Mechanical 4 November 24th, 2007 11:48 PM


Facebook Twitter Google+ RSS Feed