How are sleds cooled for a grass drag?

4

440_chazz

Member
I was at Hay Days this weekend watching the grass drags and my friend and I could not figure out how the sleds were cooled for grass dragging. Somebody please satisfy my curiousity.

Do they have a quick connect valve that runs ice water through the cooling system or is it more sophisticated than that?
 
E

ezra

Well-known member
440_chazz said:
I was at Hay Days this weekend watching the grass drags and my friend and I could not figure out how the sleds were cooled for grass dragging. Somebody please satisfy my curiousity.

Do they have a quick connect valve that runs ice water through the cooling system or is it more sophisticated than that?
Click to expand...

you are correct sir.2 quick connect plugs 6ft or so of lines a pump a heat exchanger in a cooling cart or cooler depending on budget.a leaf blower to cool clutches ect.
 
B

bigred_tr

New member
My good friend Todd Siera races alot at the grass drags. He does the quick connect from the sled to a converted cooler which has ice in it. Pretty slick but sled can't run a whole lot. Down in back...thats about it.

BR
 
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ezra

Well-known member
I have been trying to convince a bud that we need to put the cooler in the seat trunk and dump a lb of Ice in the trunk just to keep it cool at the line .would not matter on days when not running back to back but some times you end up running then 2 races latter you are up then it would be nice I think
 
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blaine

New member
Just remember not to cool it off tooo fast. If you run cold water through it the cylinder/iron cylinder wall will shrink faster than the nikicil (SP?) and you can end up flaking the nikicil off the cylinder wall. I've talked to several guys who were water shipping thier sled, sank it and then had their nikicil start to flake/fall off of it. I've also seen a few grass/asphalt guys do the same thing by running cold and not cool water through their sleds @ the track. You can add ice to the water in the cooler but make sure the actual water temp doesn't get too low too fast.
 
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