Re: Cooling woes race motor
[Re: johnnyd]
#2332807
07/06/17 11:15 PM
07/06/17 11:15 PM
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Joined: Dec 2003
Posts: 22,734 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,734
Bitopia
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Your questions may answer a whole more here, but I'm curious how 5/8" line(s) figure into this set-up.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: Cooling woes race motor
[Re: jcc]
#2332977
07/07/17 10:52 AM
07/07/17 10:52 AM
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Joined: Nov 2004
Posts: 7,274 s.w.fl
bonefish
master
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master
Joined: Nov 2004
Posts: 7,274
s.w.fl
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Your questions may answer a whole more here, but I'm curious how 5/8" line(s) figure into this set-up. THIS.
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Re: Cooling woes race motor
[Re: Stelldo]
#2332987
07/07/17 11:38 AM
07/07/17 11:38 AM
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Joined: Feb 2008
Posts: 716 Central TEXAS!!!!
sr4440
super stock
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super stock
Joined: Feb 2008
Posts: 716
Central TEXAS!!!!
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what heads are you running? 35 deg seems like a lot of timing for a big bracket engine. I would use a IR temp gun and test to see if you are getting the same temps out of both heads.
you have run it long enough, what do the plugs look like? Are you idling rich on lean?
Joe
Without Data, you’re just another guy with an opinion.
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Re: Cooling woes race motor
[Re: Stelldo]
#2333020
07/07/17 12:27 PM
07/07/17 12:27 PM
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Joined: Jan 2003
Posts: 7,498 Minnesota
Hemi_Joel
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master
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Minnesota
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With that little pump and those little lines, I would speculate that there is not enough flow. The heads are way hotter than the radiator. It's boiling in the heads, since it's puking at only 200 degrees in the rad. The boiling point of H20 at 16 psi is 260F. So the heads are at least 60 degrees hotter than the radiator.
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Cooling woes race motor
[Re: Stelldo]
#2333224
07/07/17 06:20 PM
07/07/17 06:20 PM
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Joined: Oct 2005
Posts: 1,647 Ringtown, Pa.
Dartsport540
top fuel
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top fuel
Joined: Oct 2005
Posts: 1,647
Ringtown, Pa.
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I don't have pictures on my home computer. But I run a Shogun manifold with a Shogun Z water pump. I run "AN" lines close in size to 5/8" inside diameter. I forget what size "AN" lines they are. 35* of timing. My car runs cool and cools down quickly. I run on 112 octane fuel, a little over 14 to 1 compression. I usually stage at 135 to 140*., and cross the traps at 150* ,and at my trailer it is 160* to 165*.
Next week I can get pictures of my set up. I am off to the track in a few minutes, for Friday night racing, and Saturday and sunday points racing.
When I bought my car back in 2004. It used to run hot. It had a Dodge Omni 4 cylinder radiator in it. It used to hit 220 to 240* by the time I hit the return road. I had a custom built radiator, electric fan and shroud built by Be-Cool Radiator, in summer of 2004, Now I have no more cooling problems...
548 cu. in., Bill Mitchell Aluminum Block, CRT 727 auto trans, Alston Chassis. 8.981et at 149.46 mph. 1.204et - 60 foot, So Far....
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Re: Cooling woes race motor
[Re: Stelldo]
#2333336
07/07/17 10:53 PM
07/07/17 10:53 PM
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Joined: Dec 2003
Posts: 22,734 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,734
Bitopia
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A quick review of the pics of what stands out: 1. I don't see any advantage of using 5/8" Line (AN #10) vs a line matching the size of the radiator connections, unless you have a monster pump 2. Your fan shroud is bypassing I would bet 15-20%? of your radiator, not good 3. You have too many/large of an opening on the front side of radiator where it mounts, which lets escape/bypass any moving/pressurized air at speed, not good.
Not sure if any of above would solve your issues, but it does leave a lot on the table
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: Cooling woes race motor
[Re: jcc]
#2333443
07/08/17 02:50 AM
07/08/17 02:50 AM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
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Posts: 36,041
Lincoln Nebraska
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not enough airflow and or not enough water flow or retarded timing or vac leak or not enough radiator or slight combustion leak (into the cooling system).
live every 24 hour block of time like it's your last day on earth
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Re: Cooling woes race motor
[Re: RapidRobert]
#2333514
07/08/17 11:09 AM
07/08/17 11:09 AM
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Joined: May 2005
Posts: 2,013 Apollo, PA.
B1MAXX
top fuel
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top fuel
Joined: May 2005
Posts: 2,013
Apollo, PA.
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I'm not a fan of those little sirocco style rads. I had one a long time ago, with a small block in the car and it was un-raceable. By the time I drove to the staging lane, pulled up with 50-60 other cars, did a burn out, staged the car, made a run, drove to the ticket shack, then drove to the pits. It would severely overheat.. Back then I fixed that with a stock rad out of a 70's dodge truck. I now have a multiple tube core aluminum rad. I think those rads you have is something like a single tube core at 13" by 20". not enough rad is my Restrictors in the manifold probably don't help either. Could you drill them from the fitting end?
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Re: Cooling woes race motor
[Re: Stelldo]
#2333531
07/08/17 11:36 AM
07/08/17 11:36 AM
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Joined: Jan 2005
Posts: 4,243 Charlotte, North Carolina
sgcuda
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master
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Posts: 4,243
Charlotte, North Carolina
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That pump was never designed to flow enough coolant to cool the engine. That was designed as an auxiliary pump to circulate hot coolant through the heater core. My first step would be to replace that pump.
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