DIY: Air conditioning for your Sump!.......

Modshack · 06-22-2009, 03:51 PM

Quote:

Originally Posted by Jon@Altered

PM replied! Just like the older Z33/V35 chassis, the Z34/V36 Oil Pan Spacer is interchangeable!

Score! There ya go!

wstar · 06-22-2009, 04:35 PM

It's ordered, should be here in time for the oil change

ejrives · 06-22-2009, 05:04 PM

I've been thinking about trying something like this out, especially with the vent combo.

custom heatsink extruded aluminum

It's pretty much a huge CPU heatsink and at only $26 it's worth a try in my opinion. Looks like this company makes custom sizes too .Easily installable/removable because you'd attach it on the bottom of the oil pan.

SoCal 370Z · 06-22-2009, 08:43 PM

I had placed this post in one of Modshack's threads, but it was the wrong thread! Sorry, it's deleted from that thread.

ARC Cool Fin

Now people might think this is joke, but ARC is a very serious company.

TipsZ · 02-19-2010, 01:19 PM

Is there any reason to keep the bottom plastic shroud? Or even a better question, any other drivers out there who ride around without the bottom shroud installed?

iceman21_23 · 02-19-2010, 02:53 PM

i believe the bottom plastic shroud is there for aerodynamic reasons and also keeps the engine and under the car clean.

Jordo! · 06-23-2010, 12:41 AM

That ARC cool fin looks ghetto, but the reasoning behind it is sound -- there's nothing special about cooling fins, but they do make a big difference and these can be easily added onto a surface.

I might just try these out.

Pretty inexpensive experiment... ARC Cool Fin: Evasive Motorsports | PH: 626.336.3400 Mon-Fri, 9am-6pm PST

Jordo! · 07-19-2010, 05:43 PM

Thread Revival:

Decided to order the Arc Cooling Fins to see if they really work. Will post a full report here later

kenchan · 07-19-2010, 07:45 PM

you are adding a vent to feed air over the fins, correct?

Jordo! · 07-19-2010, 07:55 PM

Quote:

Originally Posted by kenchan

you are adding a vent to feed air over the fins, correct?

Possibly. Depending on how much clearance there is between the pan and the undertray, it shouldn't make that much of a difference. Drilling a few vent holes should be sufficient.

BGTV8 · 07-19-2010, 08:59 PM

Guys, fiddling with the under-engine shrouding affects thge air-pressure behind the radiator and can affect the amount of air drawn thru the radiator .... you might be cooling the sump. but you may also be affecting the efficiency of the radiator .... take care to monitor engine coolant temps with mods like this.

I drove a Ford XR8 Ute (Oz spec "truck") with the hood unlatched (on the safety catch) for only 4 klicks having filled the washer bottle at a freeway services area several years ago, and was puzzled as to why the coolant temps were elevated ... had gone from normal 92DegC to 105DegC .... it was because air was going over the top of the radiator and pressuring ithe engine bay behind the radiator and radiator efficiency was compromised ... same thing can happen if you are letting air into the engine bay from below.

Jordo! · 07-20-2010, 07:49 AM

Quote:

Originally Posted by BGTV8

Guys, fiddling with the under-engine shrouding affects thge air-pressure behind the radiator and can affect the amount of air drawn thru the radiator .... you might be cooling the sump. but you may also be affecting the efficiency of the radiator .... take care to monitor engine coolant temps with mods like this.

I drove a Ford XR8 Ute (Oz spec "truck") with the hood unlatched (on the safety catch) for only 4 klicks having filled the washer bottle at a freeway services area several years ago, and was puzzled as to why the coolant temps were elevated ... had gone from normal 92DegC to 105DegC .... it was because air was going over the top of the radiator and pressuring ithe engine bay behind the radiator and radiator efficiency was compromised ... same thing can happen if you are letting air into the engine bay from below.

Hmm. Good point. I'll leave the underplastics intact then. I didn't think it would matter anyway -- the fins will still transfer heat away from the pan.

Modshack · 07-21-2010, 11:26 AM

Quote:

Originally Posted by BGTV8

Guys, fiddling with the under-engine shrouding affects thge air-pressure behind the radiator and can affect the amount of air drawn thru the radiator .... you might be cooling the sump. but you may also be affecting the efficiency of the radiator .... take care to monitor engine coolant temps with mods like this.

I drove a Ford XR8 Ute (Oz spec "truck") with the hood unlatched (on the safety catch) for only 4 klicks having filled the washer bottle at a freeway services area several years ago, and was puzzled as to why the coolant temps were elevated ... had gone from normal 92DegC to 105DegC .... it was because air was going over the top of the radiator and pressuring ithe engine bay behind the radiator and radiator efficiency was compromised ... same thing can happen if you are letting air into the engine bay from below.

Based on hard Data this would not seem to be a concern. Very little air is being introduced at the sump vent and it is close to where air is being extracted from the rear of the lower cover.. I've monitored my water temps with an accurate digital Scangauge for over a year now and this engine typically runs pretty cool...178-182 thermostatic controlled degrees with or without the vent. I agree that propping the hood open from the front as you describe is not a good idea and does significantly screw up the designed flow pattern, BUT introducing some air at the rear of the hood can be very beneficial at reducing engine bay temps with no affect on engine cooling numbers. Removing the Gasket at the point the hood meets the rear of the engine bay promotes flow into the bay and out the bottom. My Digital datalogging on two cars now, an Audi TT that runs hot, and an LS3 Corvette, has shown a reduction in these bay temps af around 18 degrees, again, with no impact on engine water temps. I haven't logged the Z temps, but here's a chart from my Audi experiments. (Cold start-up, light traffic, country roads, and heat soaking idle upon return)

On the Audi, this difference prolongs the Wiring and Vac lines (both problematic in this turbo'd car.

Gaskets on the Z:

Jordo! · 08-06-2010, 07:36 PM

Finally got the Arc cool fins in the mail. Will affix them next oil change if not sooner. Will let you guys know whether they make a difference once I have a chance to get them on the bottom of the oil pan

Jordo! · 09-25-2010, 07:33 PM

Quick update -- I have the cool fins on. As soon as they were afixed, you could feel heat being pulled off of the oil pan.

Now I also switched to 0-w30 Castrol, so not 100% certain that the cool fins are soley responsible for this, but after romping on it very hard in 90* F FL heat, oil temps stayed below 220 the whole time

I'll monitor temps suring normal driving and report more later

06-22-2009, 04:35 PM	#17 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3594	It's ordered, should be here in time for the oil change __________________ 7AT Track Car! Journal thread / Car setup details

06-22-2009, 05:04 PM	#18 (permalink)
ejrives A True Z Fanatic Join Date: Apr 2009 Location: Illinois Posts: 1,449 Drives: 09-6MT-T/S/N Rep Power: 18	I've been thinking about trying something like this out, especially with the vent combo. custom heatsink extruded aluminum It's pretty much a huge CPU heatsink and at only $26 it's worth a try in my opinion. Looks like this company makes custom sizes too .Easily installable/removable because you'd attach it on the bottom of the oil pan. __________________ "In a time of universal deceit, telling the truth is a revolutionary act." Stillen G3 CAI \|\| 35% tints \|\| FI CBE coming soon... Last edited by ejrives; 06-22-2009 at 05:07 PM.

06-22-2009, 08:43 PM	#19 (permalink)
SoCal 370Z A True Z Fanatic Join Date: Feb 2009 Location: US of A Posts: 2,842 Drives: Answers Rep Power: 33	I had placed this post in one of Modshack's threads, but it was the wrong thread! Sorry, it's deleted from that thread. ARC Cool Fin Now people might think this is joke, but ARC is a very serious company. __________________ ( Click to show/hide ) Why I NEVER say NO to the Panda Lou Fusz!!!

02-19-2010, 01:19 PM	#20 (permalink)
TipsZ Track Member Join Date: Mar 2009 Location: Lithia, FL Age: 51 Posts: 552 Drives: 09 Nissan 370z CS M6 Rep Power: 186	Is there any reason to keep the bottom plastic shroud? Or even a better question, any other drivers out there who ride around without the bottom shroud installed? __________________ Dynojet 285 HP/245 TQ (pre CBE)// Agency Power CBE // GTM Test Pipes // JWT Pop Chargers // B&M Short Shifter // Eibach Springs // Powder-coated Akebono's // Powder-coated Strut Bar // Black Chromed 19" Rays // // Redline Designs Graphics TipsZ journal

06-23-2010, 12:41 AM	#22 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	That ARC cool fin looks ghetto, but the reasoning behind it is sound -- there's nothing special about cooling fins, but they do make a big difference and these can be easily added onto a surface. I might just try these out. Pretty inexpensive experiment... ARC Cool Fin: Evasive Motorsports \| PH: 626.336.3400 Mon-Fri, 9am-6pm PST __________________ Enjoy it. Destroy it.

02-19-2010, 02:53 PM	#21 (permalink)
iceman21_23 Track Member Join Date: Jan 2009 Location: league city, tx Posts: 757 Drives: 09' Solid Red 370z Rep Power: 17	i believe the bottom plastic shroud is there for aerodynamic reasons and also keeps the engine and under the car clean.

07-19-2010, 05:43 PM	#23 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	Thread Revival: Decided to order the Arc Cooling Fins to see if they really work. Will post a full report here later __________________ Enjoy it. Destroy it.

07-19-2010, 07:45 PM	#24 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141521	you are adding a vent to feed air over the fins, correct?

07-19-2010, 08:59 PM	#26 (permalink)
BGTV8 A True Z Fanatic Join Date: Dec 2009 Location: 03350 Australia Posts: 1,514 Drives: 09 Nissan 370Z M6 Rep Power: 39973	Guys, fiddling with the under-engine shrouding affects thge air-pressure behind the radiator and can affect the amount of air drawn thru the radiator .... you might be cooling the sump. but you may also be affecting the efficiency of the radiator .... take care to monitor engine coolant temps with mods like this. I drove a Ford XR8 Ute (Oz spec "truck") with the hood unlatched (on the safety catch) for only 4 klicks having filled the washer bottle at a freeway services area several years ago, and was puzzled as to why the coolant temps were elevated ... had gone from normal 92DegC to 105DegC .... it was because air was going over the top of the radiator and pressuring ithe engine bay behind the radiator and radiator efficiency was compromised ... same thing can happen if you are letting air into the engine bay from below.

08-06-2010, 07:36 PM	#29 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	Finally got the Arc cool fins in the mail. Will affix them next oil change if not sooner. Will let you guys know whether they make a difference once I have a chance to get them on the bottom of the oil pan __________________ Enjoy it. Destroy it.

09-25-2010, 07:33 PM	#30 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	Quick update -- I have the cool fins on. As soon as they were afixed, you could feel heat being pulled off of the oil pan. Now I also switched to 0-w30 Castrol, so not 100% certain that the cool fins are soley responsible for this, but after romping on it very hard in 90* F FL heat, oil temps stayed below 220 the whole time I'll monitor temps suring normal driving and report more later __________________ Enjoy it. Destroy it.

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