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That is what I was planning on running, I very rarely see over 205-210 water temps unless I am stuck in bumper to bumper traffic for 20 minutes.
My oil cooler is a bit annoying, there are lines running to migrate the oil filter to the other side of the oil pan, and then my oil cooler itself is located underneath the driver side headlight tucked away. Venting that fender liner would probably do more benefit cooling wise than fan speed change. Saw your next post, I have the CSF radiator, lasted a year with stock before I upgraded. |
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With the CSF you should be able to use a table like the one I posted and have a reasonable expectation of the car keeping itself under 200 deg. With the stock table...not so much. I think it's an emissions thing or something that makes Nissan run the temps so high, but the car definitely pulls timing and makes less power when you let the temps get that high... Now what I have no data on is what voltage is being reported when you are running your A/C. Can we even log that? Because it may be running your fans wide open already in traffic if you have the A/C on and it's a billion degrees outside. You could at least log the duty cycle and see where that is landing? |
I can add the duty cycle to the things I log just to get it included and more data.
Not sure on voltage, but it should be able to log it. I know chuck has asked I do the same logs with A/C off if possible, I think he just wants me to sweat in my car. |
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The only time I get the temp gauge to start creeping up is 100+ degree days when I get stuck in traffic with the AC running full blast. No problems with the AC off and windows down. It would be interesting to see the actual water temp difference between running the AC and leaving it off. |
When looking at fan duty tradeoffs (well, post-warm-up - obviously we want the fans off until the car is basically warmed up), as far as I can tell there's only two downsides to running the fans full speed all the time: Current draw on the alternator adding drag to the engine, and wearing out the fans faster. I could care less if the fans fail every 3 years instead every 5 years or whatever, cost of doing business. I would expect the current draw to be offset by the power gains from running cooler by a mile.
Then there's MPH thing, but if you've got other devices stacked up with your radiator for direct flow (oil coolers, intercoolers), then even at speed I think the fans are helping move air through the stack better. So my philosophy on the whole thing tends to come out to "ignore speed and AC stuff. If the coolant temps are 180+, fans go 100%" |
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This is some good data right here ,and the main reason why I got rid of my CSF radiator. Driving around and having almost 210 degree coolant temp is hot one pull and your over 220 easy. |
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I can agree, even with the CSF radiator I can hit 220, but I am also on stock fan settings still but that is mostly for post hard driving to help cool down. After my hood upgrade, if it works, my next cooling upgrade is going to be the SPAL fans by GTM to hopefully just drop in and pull more air. |
Also, for an update, I have hit a wall with excel. I am acquiring 100k plus data points and Excel 2007 only allows for a graph with 30-40k data points. Working on my office to order a licence for office 2013 so I can upgrade, as with Excel 2013 my only limit is memory.
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I just swapped it for the Mishimoto radiator 2 days ago so far I am loving the results. So far I haven't had any 85 degree days to compare it in the same temps I was having high coolant temp issues. I will say this much testing it in the same type of conditions I have the last two days has given much lower temps. I had my tuner Vince change my fan settings for them to come on sooner and it help very little with the CSF radiator. |
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Just curious, I find your results very interesting! |
How did the Mishimoto radiator look? The one I bought from them years ago was a mess. It held water, but the welds were crap and it barely fit. Have they improved?
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There is a detailed DIY with the mishimoto rad somewhere on this forum. Has good pictures too. I'll try to find it and share the link.
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Found it, thanks to Google :tup: (the forum search sucks donkey balls)
http://www.the370z.com/diy-section-d...r-install.html |
I was hoping for something a little clearer. The pics are nice, but you can't really tell what the welds look like, and that was a problem when I had a Mishimoto on another car.
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Nissan 370Z Performance Aluminum Radiator, 2009+, by Mishimoto |
Better, but I'd hope the pics on their own website would be good. :rofl2:
Their problems seem to be hit or miss, leading me to believe their quality control is still as good as it's always been. That's why I wanted to hear back from Mr. Squeeze, since he doesn't **** around with his car. |
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Wait, what? I have a hard time believing that Mishimoto has developed anything better than "on-par" with CSF. We need a good 'ol Texas car to report, where we have frequent 100 degree days.
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It didn't look bad at all here are a few crappy cell phone pictures I took. http://imageshack.us/a/img713/8162/klw7.jpg http://imageshack.us/a/img30/5584/icff.jpg http://imageshack.us/a/img46/7787/vbsp.jpg |
It looks like the Mis is overall deeper versus the CSF.
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When you were running the CSF radiator, were you running 50/50 antifreeze and water? |
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With the CSF I ran a 50/50 mix at first and I also ran a 70/30 mix with Recline Water wetter neither worked . I pretty ran simular temps to the OP of this thread witch is hot. One pull on the highway and your running real hot. |
Those pics settle it for me.. Mishimoto is definitely the superior unit for performance applications.
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I ultimately believe that the GTM radiator would be the best for our cars its just very expensive. |
I went with my $250 PWR radiator that required heavy modification of the support simply because the CSF was too expensive and too small for its price...
Didn't know the Mishimoto was so much larger or I might have just gone for that. The GTM unit is marvelous, but it's really expensive... |
Do you know what is the capacity differance in the radiators?
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I am not sure of the capacity difference but the Mishimoto is 40MM vs 30MM for the CSF ,and you can clearly see the size difference in the two. |
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Im really shocked that Mishimoto made something better than CSF.
I went with CSF radiator because i was 90% sure that GTM fans will work with it (I wanted to go with GTM radiator but they didnt have it in stock at that time) If radiator didnt cool the engine down then dont blame it on radiator, this car was not designed for boost so there is no air duct to engine as much as factory boosted car. You cant really depend on radiator and throw it away if it didnt work out. you have to upgrade hood, bumper, hoses, fans, settings, etc. |
I'm looking forward to your results and impressions of the CSF rad/GTM fan combo now that you've told us it fits. That may be my next purchase. If it works well in your climate, it'll be fine anywhere.
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In my case the radiator just didn't have quick enough recovery in getting the temps back down so it was thrown away. Now upgrading the fans vent the hood will help, its still doesn't change the face that the CSF is to small. Once you start getting up there in higher boost levels it just cant keep up. Your combo of the CSF with the GTM fans should get better results than I had though. Once my bleeder screw crossed threaded I was done with it. If anyone wants a used CSF radiator for cheap send me a pm. |
I have the mishimoto radiator and it's awesome. Keeps the car cool in the hot n humid Miami. Yesterday had fun with an old school m5 and stayed cool after multiple high and long boost runs
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Going from the OEM to CSF I saw a good drop in temp after pushing it and recovering, but the CSF is a bit small. It looks to be a solid upgrade for N/A track car, but throwing in boost and high rev driving I think it will fall short. Now new fans, hood, etc might bring it up against others but being smaller will keep it falling short. |
Getting my re-tune this Friday and one of the main settings we are adjusting the fan speed, finally. Been looking over different options, considering Texas heat I found 2 very good options, thoughts on which to go with?
Option 1: http://www.specialtyz.com/images/seb/fanmodsetting.jpg Option 2: http://www.the370z.com/attachments/f...fan_speeds.jpg |
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