Re: Reverse cooling small blocks.
[Re: Devilbrad]
#890216
12/28/10 03:06 PM
12/28/10 03:06 PM
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Joined: Jan 2003
Posts: 8,038 Tulsa OK
Bad340fish
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Good topic.
I think for starters you will need a remote pump from mezziere or whoever. You will then likely need to drill and tap your intake to accept coolant at the rear of the cylinder head. I believe you could use the meziere WP adaptor on the timing cover and weld some AN fittings to it for your return. Your remote pump can then feed a manfold that pumps the coolant into each corner of the manifold.
That seems a little to simple I must be leaving something out. If its that simple I will consider this for my 416 build.
68 Barracuda Formula S 340
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Re: Reverse cooling small blocks.
[Re: Baxter61]
#890217
12/28/10 03:09 PM
12/28/10 03:09 PM
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Joined: Mar 2005
Posts: 2,489 Pacifica, CA
Devilbrad
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Quote:
isnt reverse cooling heating?
LOL, I meant reverse flow. Bad340, wouldn't you want the return lower, or at least as low as say a block fill?
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Re: Reverse cooling small blocks.
[Re: jg309]
#890222
12/28/10 08:29 PM
12/28/10 08:29 PM
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Joined: Nov 2004
Posts: 4,330 Lynchburg, VA
Leon441
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Done it and it worked great.
It's rocket science. No you do not need a remote pump. When I did it, I didn't want anyone to know what I was doing. Seemed I was a DA and didn't know anything. But, everytime I did something new some jerk was over taking pictures when I had the hood off or the engine apart. Next thing you know after going back to the same track a year later someone was running the same deal.
If you want to do it just look at a sprint car setup. The way they put water in the block is an excellent place to take it out. Their blocks have screw in core plugs. You will need something different with cast iron blocks. You also do not have to run lines to the rear of the heads. If you do that you need to change some other things to benefit from it. Look at your head gasket really close and it will tell you what to do.
Signed Smart Ellic
Career best 8.02 @ 169 at 3050# and 10" tires small block power.
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Re: Reverse cooling small blocks.
[Re: Jeepmon]
#890224
12/28/10 10:03 PM
12/28/10 10:03 PM
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Posts: 2,489 Pacifica, CA
Devilbrad
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Quote:
This maybe a dumb question.. but why not just run a water pump backwards with reverse flow blades on it?
I don't think anyone makes something like that, the blade that is. Besides you wouldn't need to reverse the pumps rotation, just make the blade pull instead of push. Did you see Rob's thread on NC1320? That's what made me start this one.
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Re: Reverse cooling small blocks.
[Re: cbarracuda]
#890226
12/29/10 01:10 AM
12/29/10 01:10 AM
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Joined: Jan 2003
Posts: 2,813 Blue Ridge, VA
Plumb Wired
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Here is a side view of the plumbing from the side of the block to the timing cover.
Mike Gray
RIP Monte Smith
aka: OutlawFish '98 Bickel Dodge Dakota PST
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Re: Reverse cooling small blocks.
[Re: Jeepmon]
#890228
12/29/10 07:40 AM
12/29/10 07:40 AM
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Posts: 413 Norway (old world)
Oyvind Mopar
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mopar
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Quote:
This maybe a dumb question.. but why not just run a water pump backwards with reverse flow blades on it?
Unfortunately not, because all these pumps work on the sentrifugal force principle pulling water in the center and trowing out on the periphery. The blade/angles just adapt the speed / pressure.
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Re: Reverse cooling small blocks.
[Re: Oyvind Mopar]
#890229
12/29/10 08:58 AM
12/29/10 08:58 AM
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Joined: Jan 2003
Posts: 6,151 Melbourne , Australia
LA360
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I was going to make the core plugs with AN fittings to sell, but with the way the Australian dollar is, it wouldn't be worthwhile to sell them in the US and the market over here wouldn't warrant doing them. The principal is very simple, pump cool water into the heads, pull the hot water into the radiator. This can be achieved with a conventional pump and or/a remote pump. I will check out a head gasket, as per Leon's suggestion though.
Alan Jones
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Re: Reverse cooling small blocks.
[Re: LA360]
#890230
12/29/10 12:20 PM
12/29/10 12:20 PM
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Joined: Jan 2003
Posts: 9,894 Weddington, N.C.
Streetwize
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I always toyed with the idea of a "2 circuit" cooling system. One for the heads and one for the block. Just isolate the head gasket cooling passages and run a remote pump for the heads that you could augment with a cool can at the track. To my mind if you can keep the heads cool independent of the block by using different flow rates and 2 smaller side by side radiators. Not reverse cooling but possibly more effective by allowing you to 'tweak' the respective temps. filled blocks especially tend to stay hot once they get hot and this taxes the system and also tends to keep the oil hotter than 'ideal'. Aluminum heads can wick away more heat and if the head gasket had some thermal isolation from the block deck surfaces you might not need a very large system if it was efficiently designed. If you wanted to get semi-sophisticated you could even make the systems closed-loop/self regulating using temp feedback (thermocouples or RTD) and even variable speed pumps and flow control valves. Lots of decommisioned industrial process control equipment can be found dirt cheap if you know where to look. I'm an industrial engineer...can you tell? ![](/ubbthreads/images/graemlins/grin.gif)
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Re: Reverse cooling small blocks.
[Re: Plumb Wired]
#890232
12/29/10 07:14 PM
12/29/10 07:14 PM
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Joined: Mar 2005
Posts: 2,489 Pacifica, CA
Devilbrad
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Quote:
Here is a side view of the plumbing from the side of the block to the timing cover.
Mike Gray
Thanks Mike! Your setup isn't reverse flow cooling though, right? Just a far superior way than stock. Love that engine! ![](/ubbthreads/images/graemlins/thumbs.gif)
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