whoßs annoyed of too high oil temps??? how 'bout this setup!!! pics inside!
#1
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whoßs annoyed of too high oil temps??? how 'bout this setup!!! pics inside!
in summer, when you push your 7 to the limits, it's likely that oil temps rise like hell and don't seem to have any upper limit ...
in my opinion a bad thing so here's my idea of remedy! anyone think it's going to work?
in my opinion a bad thing so here's my idea of remedy! anyone think it's going to work?
#3
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Originally Posted by airworks-fc3s
in summer, when you push your 7 to the limits, it's likely that oil temps rise like hell and don't seem to have any upper limit ...
in my opinion a bad thing so here's my idea of remedy! anyone think it's going to work?
in my opinion a bad thing so here's my idea of remedy! anyone think it's going to work?
#5
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Running them one above the other like that will block airflow to the rad, which is a bad thing. The coolers will also operate more efficiently if they're run in parallel. The rate of cooling depends on the relative temperatures, running the second cooler after the first means that this difference is smaller, so there's less cooling happening.
I'd run them in parallel, one behind the other to not block too much radiator flow. If you do some ducting to give the oil cooler a dedicated airstream it'll cool better too.
I'd run them in parallel, one behind the other to not block too much radiator flow. If you do some ducting to give the oil cooler a dedicated airstream it'll cool better too.
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those are good thoughts thanks man!... might have to change my mind...
i would then take two Y splitters and let the oil get through both of them at the same time and return from them back to the engine... but if i do this, think i'll have some big pressure loss because i run double volume than stock!?
mounting wise, i don't think it'll make a difference, 'cause there is a huge intercooler right behind the front duct that is blocking air anyway... and i'm running the stock fan (which is quite strong)!
i would then take two Y splitters and let the oil get through both of them at the same time and return from them back to the engine... but if i do this, think i'll have some big pressure loss because i run double volume than stock!?
mounting wise, i don't think it'll make a difference, 'cause there is a huge intercooler right behind the front duct that is blocking air anyway... and i'm running the stock fan (which is quite strong)!
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#8
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Actually running them in parallel gives LESS flow resistance, because there's only half as much oil going through each cooler half as fast, over half as much distance, which significantly reduces the pressure drop and flow reductions compared to a series setup.
http://www.negative-camber.org/crisp...c/fcpart28.htm
http://www.negative-camber.org/crisp...c/fcpart28.htm
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It's also amazing how a little bit of ducting helps. Cut a hole at the front of the undertray and make a duct that leads from the leading edge of that hole to the top of the oil cooler. Instant 30 degree reduction...
#11
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i am running it this way for 2 years already, in series, both thermostats working and i am very happy with it
http://rx7cz.net/photos/workshop94/
http://rx7cz.net/photos/workshop94/
#13
Eats, Sleeps, Dreams Rotary
Why not use a pair of small e-fans or something? (suction-type of course)
And of course, better ducting.
And if you're really desperate, a vented hood.
And of course, better ducting.
And if you're really desperate, a vented hood.
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Originally Posted by Aaron Cake
It's also amazing how a little bit of ducting helps. Cut a hole at the front of the undertray and make a duct that leads from the leading edge of that hole to the top of the oil cooler. Instant 30 degree reduction...
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Originally Posted by papiogxl
To get more air to the top one, you can try the hole in the front bumper molding between the turn signals too.
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why not just get a larger aftrmarket oil cooler and be done with it, seriously I dont thik 2 coolers will be all the extra effective since u have so much extra ground to cover..
not only that but I never had a problem with my car this summer
not only that but I never had a problem with my car this summer
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I'm going to shroud my cooler independantly and within the shrouding of the FMIC in front of it, and Rad that sits behind it. Furhtermore, I plan on purchasing some NACA ducts and place them into the bottom plastic tray and have them pointed at the Oil cooler duct.
#23
Polishing Fiend
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Originally Posted by Black91n/a
Actually running them in parallel gives LESS flow resistance, because there's only half as much oil going through each cooler half as fast, over half as much distance, which significantly reduces the pressure drop and flow reductions compared to a series setup.
http://www.negative-camber.org/crisp...c/fcpart28.htm
http://www.negative-camber.org/crisp...c/fcpart28.htm
And yes I ran a second duct from under the front splitter to direct fresh air directly to the rear oil cooler. In essence each cooler gets it's own fresh air source without blocking flow to the radiator any more than the stock single cooler would.
....FWIW
Crispy
#24
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The stock coolers are large, but the rotary depends on oil for about 1/4 to 1/3 of all cooling, especially under high loads. Lots of people have looked at their on track oil temps and decided that they needed more cooling due to high temps, that's why two are used. If I were to get aftermarket oil cooler(s) I'd probably put them in the side brake ducts, that way the rad gets a completely seperate, not pre-heated airstream. The advantage of a second stock cooler is price, they can be had for less than $100, where aftermarket ones will run you several hundred each.