Mazsport Cooling mod - does it work ?
02-21-2007, 11:11 PM
#1
Mazsport Cooling mod - does it work ?
Was about to send off an order to purchase this mod but before I did I thought I would do some testing .
With scanalyser hooked up I went for a drive over the hill . This is a steep hill that I take mostly in 3rd gear at around 6000 rpm . Day was hot - 28deg C (82F) .
with stock fan control I'm seeing cooling temps up as high as 101C (214F) .
So then I turn the fans on manually so they stay on (at slow speed) and try it again .
From what I've read here about the Mazsport Mod it turn the fans on at slow speed at a lower temp so turning them on and leaving them on should yeild the same result - right ?
I was expecting to see a dramatic improvement as many here have the mod & say it works .
To my surprise I found no difference - still goes up to 101C just as quick .
Have I missed something about how the mod works or does the mod only work for more moderate conditions ?
With scanalyser hooked up I went for a drive over the hill . This is a steep hill that I take mostly in 3rd gear at around 6000 rpm . Day was hot - 28deg C (82F) .
with stock fan control I'm seeing cooling temps up as high as 101C (214F) .
So then I turn the fans on manually so they stay on (at slow speed) and try it again .
From what I've read here about the Mazsport Mod it turn the fans on at slow speed at a lower temp so turning them on and leaving them on should yeild the same result - right ?
I was expecting to see a dramatic improvement as many here have the mod & say it works .
To my surprise I found no difference - still goes up to 101C just as quick .
Have I missed something about how the mod works or does the mod only work for more moderate conditions ?
02-21-2007, 11:38 PM
#2
mazsport mod turns both fans on at full speed at around 190 degrees. I think they stay on till temp is 180 degrees.
Just lazy driving on the highway, and some stop and go traffic, I'll easily reach 205 degree temps (when stock), with the mod installed, temps are usually about 185.
No question that it works.
Just lazy driving on the highway, and some stop and go traffic, I'll easily reach 205 degree temps (when stock), with the mod installed, temps are usually about 185.
No question that it works.
02-22-2007, 12:18 AM
#4
Registered
Is this 'mod' equivalent to getting a FC thermoswitch for the FD? FC turns on fans @ 95 deg C FD @ 108 deg C. Cost is ~$50.00
Has anyone researched if there is an alternate thermoswitch for the RX-8? Or even converting as was done previously with the miata thermoswitch to FD?
Laters!
Edgardo
Details on FC thermoswitch for FD:
http://www.rx7club.com/showthread.php?t=447606
Has anyone researched if there is an alternate thermoswitch for the RX-8? Or even converting as was done previously with the miata thermoswitch to FD?
Laters!
Edgardo
Details on FC thermoswitch for FD:
http://www.rx7club.com/showthread.php?t=447606
02-22-2007, 07:09 AM
#5
Originally Posted by Brettus
this is what I was confused about - I thought Scott said somewhere that it only operated the first stage of cooling (both on slow)
The only problem with it is that my car seems unable to keep up with the current draw. I ended up plugging in only one of the cooling fan fuses, and using a stock one for the other. My idle problems (stalling due to rpm dropping and voltage dropping) have almost gone away. Cooling is still better than stock, but not as nice as it was with both fans operating on full. I do not this this problem is CAUSED by the cooling mod, but rather a side effect of something else, such as the batt/alternator being unable to keep up.
02-23-2007, 06:49 PM
#11
No, actually both are not on full noise. Both on at ~90c yes, but there still is a more aggressive stage right before you cook the water jacket seals.
Last edited by Brettus; 02-23-2007 at 06:53 PM.
02-23-2007, 08:03 PM
#13
Originally Posted by Brettus
hmmm - just found this quote from Scott ..... CONFUSING !
yeah, it might have higher settings. you don't want the engine too cool. Around 180 degrees is good.
btw, I can replicate the idle issue with just my headlights sometimes. So I'm very sure it's unrelated. This weekend I'll hook up a friend's 800 CCA batt to my car and test to see if it's just a batt problem. This is off topic, but anyone know if there's any issues with doing that (higher CCA batt)?
02-28-2007, 05:41 PM
#14
Never ever say Never ever
Join Date: Oct 2006
Location: South Texas
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I just installed this mod 3 days ago on my 2004 Rx-8 and I must say this kit really does the car well. The A/C feels alot colder, the car turns on faster and after a drive the fans stay on for about 15 seconds after the car has been turned off. I would really recommend this mod.
02-28-2007, 10:31 PM
#15
well - I did some more testing - this time with the fans on full .
Same hill - slightly cooler day (26 deg C) . Found that The car stayed cooler for longer but still ended up at 101 deg C by the top of the hill .
My feeling - mod is not as great as I had been led to believe but does help up to a point .
Same hill - slightly cooler day (26 deg C) . Found that The car stayed cooler for longer but still ended up at 101 deg C by the top of the hill .
My feeling - mod is not as great as I had been led to believe but does help up to a point .
03-01-2007, 08:30 AM
#16
Got Another Rotary
Originally Posted by Brettus
well - I did some more testing - this time with the fans on full .
Same hill - slightly cooler day (26 deg C) . Found that The car stayed cooler for longer but still ended up at 101 deg C by the top of the hill .
My feeling - mod is not as great as I had been led to believe but does help up to a point .
Same hill - slightly cooler day (26 deg C) . Found that The car stayed cooler for longer but still ended up at 101 deg C by the top of the hill .
My feeling - mod is not as great as I had been led to believe but does help up to a point .
If you are pushing the car so hard (with hot temps) that you exceed the radiator's capacity, your engine will heat up eventually even with the fans turned on early. If you do this type of driving a lot and want to keep the water temps down, you are going to need a larger capacity radiator as well.
03-13-2007, 10:13 PM
#20
it amounts to cutting your coolant line, putting the hardware in the cut line, plugging in the fuses and making sure it's grounded. Should take 15 minutes for a first time user.
03-15-2007, 02:29 AM
#23
Originally Posted by ecxel
thanks, can anyone take a picture of how the finished install looks like to make sure i'm going to do the right thing XD! Thanks lot
hope that covers it.. btw, the red wire has nothing to do with the mod.... pretend it is not there.
beers
