This applies to the oil cooler supplement for the GTM Supercharger kit where the oil cooler is mounted in the driver side of the front bumper. This does NOT apply
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04-18-2012, 11:19 AM | #1 (permalink) |
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DIY GTM Supercharger Oil Cooler Fan Mount for additional air flow
This applies to the oil cooler supplement for the GTM Supercharger kit where the oil cooler is mounted in the driver side of the front bumper. This does NOT apply to those who are not FI'ed and have their oil cooler mounted in front of the radiator. This DIY is for those who have a FMIC and had to put their oil cooler in a less than desirable mounting location.
This DIY adds a fan to force additional air flow over the oil cooler. I had already vented the fender liner so the hot air can escape. Since I installed a louvered section, the exiting air is forced downward rather than directly towards the tire. GTM also sells a vented fender lining as well, but it does not fit the NISMO version unless they have started selling a NISMO version. EDIT GTM does have a NISMO version, you just request it in the notes on the order. As with all DIY installs, you are responsible for your own work. This one is not that hard but does involve wiring and the battery. I am not responsible for damage to yourself or your vehicle. As with everything, there are multiple ways of accomplishing the same goal. This is just how I installed mine and is just a rough DIY. Parts Required
Fan mounting brackets and fan strap kit Fan control temperature switch rather than a rocker switch Flex nylon wire loom Various size heat shrink tubing / heat gun Wiring for the relay (4 wires)
Wiring for Fan (2 wires)
Wiring for the Rocker Switch (2 wires)
Short directions Jack up the car and put on jack stands Remove the driver side wheel, fender lining, and engine undertray Remove the front bumper. I did not but would have given me a lot more room to work. Mount the fan using your choice of brackets Find a good spot and mount the relay Wire up the relay including a rocker switch or temperature switch Test the fan control Pictures Picture of the SPAL 6.5" fan Or you can use the 7.5" version. Comparison of 6.5" and 7.5" This is the front of the oil cooler and mount spot EDIT I replaced my original 6.5" with the 7.5" version This is the back of the oil cooler Picture for the relay and wire colors Photo from Zat_Zuma shows how the fan looks mounted. I could not get a picture because I did not remove the bumper. Picture showing the rocker switch Photo of my vented fender lining, here is my DIY on that mod. You can also buy a vented fender lining from GTM now. Misc I know that Baer383 used a fan switch from Summit Racing to control his fan. I bought these pucks and they work perfectly on the Z. I have not really had a lot driving time to rate the fan but it does push a lot of air over the cooler. Oil cooling efforts so far:
Hopefully someone will find this helpful. Thanks to Zat_Zuma and Baer383 for the tips, help, and some of the pictures. Last edited by wind.zero; 04-20-2013 at 04:35 PM. Reason: Updated with larger fan option |
04-27-2012, 07:46 PM | #4 (permalink) |
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^^
Thanks weiboy718 and Jamaica The scorched earth policy has not started yet, but it has been close to 90 with high humidity. Even with boost and playing around on the highway, I have yet to go past 220 with the fan. So far it looks like a great cooling mod. |
04-27-2012, 11:44 PM | #7 (permalink) |
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Any reasoning behind having the fan placed in front of the cooler 'blocking' part of it, blowing air through vs on the backside pulling air through?
And R&D to see which is the better option?
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04-28-2012, 07:23 AM | #8 (permalink) | |
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Quote:
There is not enough room on the back side of the cooler and the fender lining to mount a puller fan. The fender lining is almost sitting directly on the oil cooler itself. If you mounted a puller fan you would have fitment issues getting the fender lining to align back up with the engine under tray. |
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04-29-2012, 10:39 PM | #9 (permalink) | |
WFLYIDNNE
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Quote:
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05-05-2012, 09:29 PM | #10 (permalink) |
A True Z Fanatic
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You should get a switch for the pan so you won't have to turn it on.
good job anyway have a rep and a smile
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06-19-2012, 12:26 AM | #12 (permalink) |
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Windzero, any chance to do more testing on this and if there are good improvements versus without the fan?
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06-19-2012, 06:12 AM | #13 (permalink) | |
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Quote:
However, I have not see over 220 on the oil gauge since installing the fan. |
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06-19-2012, 06:39 AM | #14 (permalink) |
A True Z Fanatic
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I have the Greddy pan,vented liner,sensor on at 190deg.,CSF rad.,Spal 6.5in fan,Uprev fan speed re set @ 192-196-205,and haven't topped 200deg oil temp and our temps here in Atlanta are 90+ so far.
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2013 ZL1 754 rwhp 747 rwtq Last edited by Baer383; 07-02-2012 at 09:02 PM. |
07-02-2012, 08:40 PM | #15 (permalink) |
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Wind Zero, Thank you for this write up. My temp is hitting 250 even when driving my GTM SC Z like a baby to work and back. I did my first oil change yesterday and when I saw where the oil cooler was mounted I spent the rest of the day pissed at the installer and thinking about how to relocate it. I also thought about venting the splash pan (sorry, engine undertray) and ducting the air up to the oil cooler. Then I thought about drilling holes in the fender liner to let air flow thru, but figured water would sling off the tire and into the cooler fins. Thank You for saving me from a bunch of costly mistakes.
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