I would respectfully disagree with Bill. It really depends on the type of track time you are doing and the efficiency of your cooling system. If your are doing endurance racing, or races more than an hour in really hot weather, then you will need a separate oil cooler because the stock oil cooler does not have enough surface area to keep the oil cool unless the coolant temperature was around 170F for the entire race.
If you are running alternate short 30 minute sessions with 30 minutes in the pits, then simply wiring your fans to turn on with the ignition and leaving you hood up the entire time you are sitting in the pits will do just fine. So long as your cooling system is efficient enough to keep you from over heating on the track. Leaving the hood up and maybe running the fans a couple of minutes when you first stop in the pits will eliminate a lot of heat soak and lower your coolant temperature low enough that the extra load from the oil cooler will be a nit. Always remember; it is easier to keep something from getting hot than it is to cool it off after it gets too hot. ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Shaun Bogan Sent: Tuesday, 05 August, 2008 11:13 To: 'Bill Cardell'; [email protected] Subject: RE: Stock oil cooler Gotcha, So a theory could be to keep the stocker disconnected and add a stand-alone oil cooler. And add an oil temp gauge.. J Shaun ________________________________ From: Bill Cardell [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 05, 2008 11:06 AM To: Shaun Bogan; [email protected] Subject: RE: Stock oil cooler I think Keith is correct in its reason for being, but once on track your oil typically will be hotter than your coolant, so the cooler will be dumping a lot of extra heat into the oil that would be better addressed with a separate oil/air cooler. Bill Cardell TurboDog's Dad www.flyinmiata.com www.fmwestfield.com Sales 1-800-359-6957 Tech 970-464-5600 Before you call, check out http://www.flyinmiata.com/FAQ/ Come to our Open House! August 14-17 ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Shaun Bogan Sent: Tuesday, August 05, 2008 8:45 AM To: [email protected] Subject: RE: Stock oil cooler Yep. That was my hunch. I'd hope that my oil temps are not exceeding the coolant temps. Hopefully I'll be down around 200-215 on the track now. Shaun ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Keith Tanner Sent: Tuesday, August 05, 2008 10:28 AM To: [email protected] Subject: RE: Stock oil cooler My suspicion is that the stock oil "cooler" is actually there to aid the oil in coming up to temperature more quickly. The coolant reaches operating temperature before the oil does. Keith Tanner Flyin' Miata [EMAIL PROTECTED] http://www.flyinmiata.com <http://www.flyinmiata.com/> 1-800-FLY-MX5s (orders) 1-970-464-5600 (tech) 2008 FM Open House: August 14-17 ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Shaun Bogan Sent: Tuesday, August 05, 2008 8:04 AM To: [email protected] Subject: Stock oil cooler Does anyone know how much cooling the stock oil cooler actually does? I'm in the process of wrapping up a cooling system re-route and had decided to disconnect the stock oil cooler/throttle body heater circuit. Given that I was seeing 225 degree coolant temps on the track pretty regularly, I'd think that the oil cooler would be doing more heating than cooling. However, since I don't yet have an oil temp gauge, I don't know what my oil temps are. Thoughts? Thanks! Shaun
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