Super Jet Cooling question

[Rushford_Ripper]

So in a few days, I will hopefully be assembling my new to me RN. The hull has dual cooling and want to run it so I am going to tap the pump. The question I have is, will it be ok to run one line to the manifold and a pisser from the head and one line to the headpipe with a pisser? I don't see why not but wanted some input.

 

[Harbor]

So parallel cooling...

Are You planning to T off the head pipe to the stinger with or with out flow control valve then over board ?

You can do it, I had parallel cooling on an Rn with dry pipe.

Advantage, if you ride sandy surf or around other debri and get a restriction is easier to locate since the systems already split in 2

Downside, if the plug is in the engine cooling line, you don't have the second line as back up for engine cooling. Noticing the pisser not flowing is more critical

Same goes for the pipe.

Why do you want to run it that way, more head pipe pressure ?

 

[Rushford_Ripper]

Yes, I plan to T the line from the headpipe to stinger. I figured it would just be the easiest way to plumb it, easiest way to tell what's being cooled and what's not being cooled. I do ride in a sandy area but never shallow enough to swallow it as I always start off at least knee to waist deep.

 

[Harbor]

This way you don't have to drill and tap the manifold for a the second cooling line ? You only have one line out the head I'd guess then ?
Ya, I see where you say it's easier then.

 

[Rushford_Ripper]

I have 2 out the head. Don't really want to tap the manifold either. I was going to just block one of the fittings in the head.

 

[Harbor]

2 head fittings ok... On this Rn with parallel cooling we still used both outlets at the head... One line into manifold and 2 out head overboard

Had plenty of pressure and flow out the two head pissers and the pipe pisser. all 3 sprayed down the side of the hull out 90 degree pisser's evenly

You can see the black hose feed the pipe and below it is the silver clear bradded hose feeding the engine. 2 outs on head overboard

 

[speedysprocket]

Might make your pipe too cold, since it usually gets its water after it's been through the engine and warmed up. You don't really help cool your engine any more with the way you describe, either, which defeats one of the main advantages of dual cooling...

 

[Rushford_Ripper]

I can't see it running the pipe too cool being that the b-pipe is adjustable. I'm trying to figure out the best way to do this without pulling my manifold/engine apart to tap it since id like to just swap from ski to ski.

 

[Harbor]

Ya his pipe will be colder without the pre heated water.

The head pipe adjusters allow adjustment to the chambers temp not the head pipe temp.

I did like two out the head though, so both cylinders had a water exit, I felt cylinder cooling was more even.

 

[Rushford_Ripper]

Headpipe too cool a bad thing? So will it be ok if I run it that way it no?

 

[King Kang]

Having the head pipe too cold is suboptimal, that's why FP gives you the "water sizzle" test for tuning. I suppose you could adjust the flow going into your headpipe down to a minimum to compensate for this, but I'm worried that it might make it easier for your head pipe to get clogged. If your goal is just to make the installation as easy as possible, you can either do like you're suggesting or you can just run single cooling. Were it me, I'd take the time to tap the manifold, run a pisser out of the head, and a pisser off a T just before the stinger. Like this:

 

[Rushford_Ripper]

Guess I will be tapping the manifold then....

I should say that it's a stock 62t with b-pipe, no high compression head.

 

[speedysprocket]

Do it right the first time and do it once.

 

[sneds]

If you do use dual cooling, I would try to balance the two cooling circuits with 3 areas to cool each. One cooling the manifold, cylinder, and head pipe. The other cooling the manifold, cylinder, and stinger.

 

[Rushford_Ripper]

Have a diagram for the balance?

 

[King Kang]

He is suggesting that you do it like this:

 

[Rushford_Ripper]

I think I will just leave it alone and single cool it with 2 water outlets like factory pipe suggests, cap off the other cooling line.

 

[Harbor]

I think I will just leave it alone and single cool it with 2 water outlets like factory pipe suggests, cap off the other cooling line.

Why ? There is nothing wrong with what you wanted to do. Sure head pipe will be a little cooler but other than that your good. Plus you'll have a lot more water pressure with parallel dual cooling.

I'd do it as an interm to true dual

Your not still running the over heat temp sensor are you ?

 

[Rushford_Ripper]

So run the parallel then? It sounded like that was a bad idea? No the temp sensor is removed.

 

[BruceSki]

I run one to the pipe, one to the manifold, teed before the manifold so it enters both sides.

Two exits from the head overboard.

Fill head pipe from bottom, pull a t off the top of head pipe and dump one side overboard and other side into stinger(flow control optional)