But the more heat you transfer to the coolant from the block the more heat is leaving the block. A higher delta T at the radiator means more heat transfer occurs there. Think of it as heat flow and not temperature. The more heat you can carry away form the block via transferring it to the coolant the better off you are at maintaining thermal stability under high load.
I would still run a separate oil cooler as well though. Bob ----- Original Message ----- From: Bill Cardell To: Bob Bundy ; [email protected] Sent: Tuesday, August 05, 2008 6:59 PM Subject: RE: Stock oil cooler I've fallen on my sword already for my typo, yes, the oil heat would be going into the coolant. Which is usually already overloaded trying to get rid of heat. Better to offer it another path to dump heat to the air without involving the poor radiator. Bill Cardell TurboDog's Dad www.flyinmiata.com www.fmwestfield.com orders 1-800-FLY-MX5S Before you call our tech line (970.464.5600) please check out the FAQ section of our website Don't miss Flyin' Miata's Open House! Aug 14-17, 2008 ------------------------------------------------------------------------------ From: Bob Bundy [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 05, 2008 7:39 PM To: [email protected]; Bill Cardell Subject: Re: Stock oil cooler I think you mean the oil will be dumping extra heat into the coolant. But I don't under stand how that can be a bad thing. One more way for heat from the engine to get extracted from the engine and sent to the heat exchanger resulting in more heat rejection. I would guess the amount of coolant flow through it is on the low side though. the B6 and BPT GTX's have a cooler that is twice as big and run the full flow headed for the heater core through it. Bob ----- Original Message ----- From: Bill Cardell To: Shaun Bogan ; [email protected] Sent: Tuesday, August 05, 2008 8:06 AM 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 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 ---------------------------------------------------------------------------- _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
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