Reversing the Water flow in the engine
#1
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Ok, so I've got a 55mm Koyo Racing Aluminium Radiator, A 13 Row Mocal Oil cooler, and 2 high speed SPAL fans.
I'm still not happy with my overall water temp at idle in traffic, the damn radiator is just too big for street. Then I hear some pals telling me to reverse the flow of the water in the engine, so that the 4th cylinder gets the coolest water FIRST, before the rest of the engine.
Questions:
1.Has anyone done this modification and does it actually work? My pal did this on a NB and NC and he swears by it.
2. Next in line for more cooling mods was probably going to be 2 small fans for the oil cooler. The question is - would computer fans work? Or can anyone point me to where I can find 2 small fans that would work with the Mocal's rectangular shape.
I'm still not happy with my overall water temp at idle in traffic, the damn radiator is just too big for street. Then I hear some pals telling me to reverse the flow of the water in the engine, so that the 4th cylinder gets the coolest water FIRST, before the rest of the engine.
Questions:
1.Has anyone done this modification and does it actually work? My pal did this on a NB and NC and he swears by it.
2. Next in line for more cooling mods was probably going to be 2 small fans for the oil cooler. The question is - would computer fans work? Or can anyone point me to where I can find 2 small fans that would work with the Mocal's rectangular shape.
#2
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Just wondering what Water temp. are you getting while idling in the traffic(Nice Asian Summer weather) ??
I am having the same problem, I just choose not to take the car out!
next thing I'll do its to put a few role of louvers such heat could escape from under the hood, and keep the heat exchange circulating while its stuck in traffic under the sun.
I am having the same problem, I just choose not to take the car out!
next thing I'll do its to put a few role of louvers such heat could escape from under the hood, and keep the heat exchange circulating while its stuck in traffic under the sun.
Last edited by Mimime; 08-30-2007 at 08:02 AM.
#4
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i run the all metal automatic factory radiator and have never had a problem with my coolant temps. i did the coolant reroute on my car, here's a link to diagrams and some pics of mine on my site. http://www.miatamx5.com/coolantreroute/index.html
the piping and thermo housing will all be redone shortly by TurboTim(ShoreMotorsports), we got some trick setup planned.
the piping and thermo housing will all be redone shortly by TurboTim(ShoreMotorsports), we got some trick setup planned.
#5
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If you have two Spals and a 55mm Koyo, and you're not happy with coolant temps, you have other issues. I have a 57mm CSF and the stock fans and the only times I've ever see the needle move past 12pm was on the track in 95-110 degree heat.
#6
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the design of the waterpump would prevent you from flowing water the way you want....but what you can do is search "coolant reroute"
but you shouldn't have any problems idling within range with your mods. are you sure its not full of air pockets? you should be at 87-98°C at idle.
https://www.miataturbo.net/general-miata-chat-9/beginning-my-spacerless-coolant-reroute-12027/
but you shouldn't have any problems idling within range with your mods. are you sure its not full of air pockets? you should be at 87-98°C at idle.
https://www.miataturbo.net/general-miata-chat-9/beginning-my-spacerless-coolant-reroute-12027/
#9
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On the laptop through the MS, I've seen up to 215 in 110+ degree heat on the highway, but I also have a 27" intercooler blocking all the airflow to the radiator.
Eventually I want to send the cluster off to miatagauges.com and have them drop a couple of analog 270 degree sweep VDO gauges into the stock locations.
#10
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Just wondering what Water temp. are you getting while idling in the traffic(Nice Asian Summer weather) ??
next thing I'll do its to put a few role of louvers such heat could escape from under the hood, and keep the heat exchange circulating while its stuck in traffic under the sun.
next thing I'll do its to put a few role of louvers such heat could escape from under the hood, and keep the heat exchange circulating while its stuck in traffic under the sun.
On most applications I see around 88 to 95 degrees celsius. Whe I am stuck in traffic jams, the temp goes to about 104 degrees celsius. Please remember that Im in Singapore with high temperatures and high humidity.
#11
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the design of the waterpump would prevent you from flowing water the way you want....but what you can do is search "coolant reroute"
but you shouldn't have any problems idling within range with your mods. are you sure its not full of air pockets? you should be at 87-98°C at idle.
https://www.miataturbo.net/showthread.php?t=12027
but you shouldn't have any problems idling within range with your mods. are you sure its not full of air pockets? you should be at 87-98°C at idle.
https://www.miataturbo.net/showthread.php?t=12027
I'm getting about there at idle. When I'm stuck in traffic, it can go up to about 105ish.
Sorry about the confusion, yes, my pal did mean coolant reroute. Sorry about that guys
#13
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Well, Im using a Pivot water temp gauge that taps off the ECU. This gauge is consistently higher than the readings off my Link Display, by about 2-3 degrees celsius. The pivot actually takes readings off the stock water temp sensor located at the back of the 4th cylinder.
On most applications I see around 88 to 95 degrees celsius. Whe I am stuck in traffic jams, the temp goes to about 104 degrees celsius. Please remember that Im in Singapore with high temperatures and high humidity.
On most applications I see around 88 to 95 degrees celsius. Whe I am stuck in traffic jams, the temp goes to about 104 degrees celsius. Please remember that Im in Singapore with high temperatures and high humidity.
#14
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i run the all metal automatic factory radiator and have never had a problem with my coolant temps. i did the coolant reroute on my car, here's a link to diagrams and some pics of mine on my site. http://www.miatamx5.com/coolantreroute/index.html
the piping and thermo housing will all be redone shortly by TurboTim(ShoreMotorsports), we got some trick setup planned.
the piping and thermo housing will all be redone shortly by TurboTim(ShoreMotorsports), we got some trick setup planned.