Overheating at track - check here before you invest in an auxiliary oil cooler
#17
Banned
Join Date: Feb 2011
Location: Deep Downtown Carrier, OK
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I don't need another concern, thank you very much. It's hard to save up for performance upgrades, when I'm finding all these preventative maintenance upgrades to spend on...
So, do you have more concern about gear, syncro, or LSD wear from running the tranny hot?
Can I assume that for your purposes (enduro racing?), that transmission cooling is more important than for my 'light' duty. Currently, I'm only doing track days that are limited to 20-30 minute sessions. I'm hoping that fresh transmission oil is sufficient to prevent excessive wear.
So, do you have more concern about gear, syncro, or LSD wear from running the tranny hot?
Can I assume that for your purposes (enduro racing?), that transmission cooling is more important than for my 'light' duty. Currently, I'm only doing track days that are limited to 20-30 minute sessions. I'm hoping that fresh transmission oil is sufficient to prevent excessive wear.
In your situation though, I'd certainly change out fluid at least twice a year, if not a bit more. Delvac please.
#18
Burning Brakes
Thread Starter
A/C delete simplifies the install of a secondary oil cooler. I would have to think about whether I was willing to remove A/C. The oil cooler setups which work with A/C are more expensive.
#19
Burning Brakes
Thread Starter
Wow, I certainly haven't been doing it that often. I'll get right on that too.
#20
Rennlist Member
Thanks. Did you do this as a preventative measure; or were you experiencing over-heating?
A/C delete simplifies the install of a secondary oil cooler. I would have to think about whether I was willing to remove A/C. The oil cooler setups which work with A/C are more expensive.
A/C delete simplifies the install of a secondary oil cooler. I would have to think about whether I was willing to remove A/C. The oil cooler setups which work with A/C are more expensive.
#21
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I change mine every 15 hours now (every other race weekend along with most other fluids and the anti-freeze in the radiator). It's certaily easy enough and cost is relatively insignificant.
#22
Instructor
hi,
thank you for the interesting thread. i live in dubai and mine is a semi daily driver. our summers are brutal, 48 celsius....118f.
i will definitely take the front bumper and got through what was advised above.
would an auxiliary oil cooler while maintaining a/c affect ac performance?
are auxillary oil coolers which fit parallel to the ac condenser the same size as the condenser or smaller?
for example:
http://www.fvd.de/de/en/Porsche-0/96...r_with_AC.html
thanks.
thank you for the interesting thread. i live in dubai and mine is a semi daily driver. our summers are brutal, 48 celsius....118f.
i will definitely take the front bumper and got through what was advised above.
would an auxiliary oil cooler while maintaining a/c affect ac performance?
are auxillary oil coolers which fit parallel to the ac condenser the same size as the condenser or smaller?
for example:
http://www.fvd.de/de/en/Porsche-0/96...r_with_AC.html
thanks.
#24
Burning Brakes
Thread Starter
hi,
thank you for the interesting thread. i live in dubai and mine is a semi daily driver. our summers are brutal, 48 celsius....118f.
i will definitely take the front bumper and got through what was advised above.
would an auxiliary oil cooler while maintaining a/c affect ac performance?
are auxillary oil coolers which fit parallel to the ac condenser the same size as the condenser or smaller?
for example:
http://www.fvd.de/de/en/Porsche-0/96...r_with_AC.html
thanks.
thank you for the interesting thread. i live in dubai and mine is a semi daily driver. our summers are brutal, 48 celsius....118f.
i will definitely take the front bumper and got through what was advised above.
would an auxiliary oil cooler while maintaining a/c affect ac performance?
are auxillary oil coolers which fit parallel to the ac condenser the same size as the condenser or smaller?
for example:
http://www.fvd.de/de/en/Porsche-0/96...r_with_AC.html
thanks.
Anyway, from what I've read, installing an oil cooler does reduce the capabilities of the A/C; however, it was still functional for most climates. Dubai may be an exception (wow!), but I don't have any information to know one way or another.
#25
Nordschleife Master
#26
A/C is over rated--unless you live in Dubai
Eric, my guess would be that you are running around 230 to 248 on the track even with mild temps with a single cooler. This has been my experience riding with students in their 993's & 964's with one cooler. For reference the first single sold line is 194 and the second single solid line is 248.
This is my inexpensive set-up (in Porsche dollars) . Around $270.00 for Aeroquip lines & fittings. $275.00 for OE cooler. Modified a/c condenser bracket to accept OE cooler--welding required. I removed both fans to get the maximum air flow. I am running around 190 on the street & 200-210 on the track.
Eric, my guess would be that you are running around 230 to 248 on the track even with mild temps with a single cooler. This has been my experience riding with students in their 993's & 964's with one cooler. For reference the first single sold line is 194 and the second single solid line is 248.
This is my inexpensive set-up (in Porsche dollars) . Around $270.00 for Aeroquip lines & fittings. $275.00 for OE cooler. Modified a/c condenser bracket to accept OE cooler--welding required. I removed both fans to get the maximum air flow. I am running around 190 on the street & 200-210 on the track.
#27
Burning Brakes
Thread Starter
A/C is over rated--unless you live in Dubai
Eric, my guess would be that you are running around 230 to 248 on the track even with mild temps with a single cooler. This has been my experience riding with students in their 993's & 964's with one cooler. For reference the first single sold line is 194 and the second single solid line is 248.
This is my inexpensive set-up (in Porsche dollars) . Around $270.00 for Aeroquip lines & fittings. $275.00 for OE cooler. Modified a/c condenser bracket to accept OE cooler--welding required. I removed both fans to get the maximum air flow. I am running around 190 on the street & 200-210 on the track.
Eric, my guess would be that you are running around 230 to 248 on the track even with mild temps with a single cooler. This has been my experience riding with students in their 993's & 964's with one cooler. For reference the first single sold line is 194 and the second single solid line is 248.
This is my inexpensive set-up (in Porsche dollars) . Around $270.00 for Aeroquip lines & fittings. $275.00 for OE cooler. Modified a/c condenser bracket to accept OE cooler--welding required. I removed both fans to get the maximum air flow. I am running around 190 on the street & 200-210 on the track.
1. Run only the primary (clean) oil cooler: At the expense of engine heat.
2. Run only the primary oil cooler with fog ducts added to increase airflow: Does anyone know how much cooling one can expect from this mod?
3. Add auxiliary oil cooler/bracket kit (RUF, FVD, Cargraphic, etc) to A/C: Very expensive kits.
4. Remove A/C and add kit or fabricate my own bracket: Hot driver (although not bad for short stints on track); Weight reduction; Kits (RUF, FVD, Cargraphic, etc) are still quite expensive; I hate fabrication!
The slippery slope strikes again....
#30
Instructor
thanks Kai, but a cool shirt setup aint an option here unless im only tracking... on hot days and hard drives the needle will hit 9 o'clock.. traffic will see it go up to 930. last summer it stayed at 8-830 no matter what i did, so ill clean up the gunk which i expect is there and find out... fingers crossed.