How hot do you go?

[jknight]

I am planning on installing an oil cooler soon. This past weekend at the track, I let the oil temp reach 298 (while gaining on a Viper GTS) before I backed off. I know the oil has no problem lubricating at these temps, but I am concerned about the engine seals. How hot have you allowed the oil to get?

[02EBZ06]

252 is the highest I've seen in bumper to bumper traffic with 95-100 degree air temp. And I thought that was hot. 298 wow!

[jknight]

Sorry, I should have been more specific; 298 was at the track.

[Rollin Black]

At the track, any higher than 280 I get off her and give her a chance to cool down.

I usually have no need to worry because the "High Trans Temp" DIC warning usually beeps in around the same time

need to get some coolers soon also

[jknight]

There must be some difference between the 02s and 01s when it comes to trans. temp. Another guy at the track this weekend kept getting high trans temp warnings in his 01, but I have yet to get a warning in my 02 with oil temps much higher than his.

[Rollin Black]

Wow, JK. I'm not sure if that is good, or bad?

What tranny fluid are you using? How many miles on the fluid?

I know of no changes in the tranny between the 2 years.

Perry

[jknight]

6200 miles with the factory fill.

I performed a search for "trans temp" and found that the majority were posted by 01 owners. I only saw a few indications from 02 owners with the problem. Could be simply coincidence.

How about the difference in cat placement. Not real familiar, but don't the 01s have pup cats before the main cats. Maybe something to do with that ?????

[Rollin Black]

Very interesting.

I don't think it's the cats in my case any ways as I swapped out the 01 for an 02 center section (manifolds to catback) shortly after I got my car. Maybe something to do with my Borla stingers???

I have 11K on my car and have changed the tranny fluid at 5K?

[Silver Bullet]

Low 290's on some of the desert tracks out west and usually mid to upper 280's on east coast.
That's running hard for 30 minutes. Trans temp and oil temp only seem to have issue when i have to pull into pit and then go back out.
When moving the car vents.
Have heard from many top sources that 300 temp is where engine will blow but below that and all should be good.
They all have said 300 is the point they have seen them blow at several times so be aware.

[Dr. Z]

I've been running a little over 280 at the track with outside temps 90-100 when pushing it pretty hard. I found that the DIC warning of high trans temp occurs when really revving 3rd around the track. I've been running more 4th gear, working on my line and carrying speed through turns and find that my times aren't too much slower and both oil and trans run much cooler. I am getting pretty close to wanting that extra torque and power and will likely need to go to a cooler at some point. Either that or mix in some laps in higher gear during the session.

Pete

[the rave]

Originally posted by jknight
I am planning on installing an oil cooler soon. This past weekend at the track, I let the oil temp reach 298 (while gaining on a Viper GTS) before I backed off. I know the oil has no problem lubricating at these temps, but I am concerned about the engine seals. How hot have you allowed the oil to get?

if you run at sustained 300 degree oil temp, you will F up your motor. I don't care who says otherwise. and I certainly don't care what the Mobil rep has to say on the subject.

dave sometimes an arrogant ahole, but some experience on the subject..

[jknight]

Well, I don't think I'll let over 290 occur again. But I wanted sooo badly to catch and pass that Viper.

Anyway, one additional question:
For hot summer open track days, do you use 10W30 or 15W50?

[TX02Z06]

If you are running on the track, get an Oil Cooler!!!!, forget the poll BS, cause most folks running hard are going to see 275 on up.
And as the rave already said, ruin a motor.

Just take a look at racing oil temp gauges. Most don't go pass 280 on the dial. That has to tell you something!!!!

[jknight]

Ordered my oil cooler from DRM today. Should be here in 2 - 2 1/2weeks.

[J-Rod]

12480080 C5 Transmission Oil Cooler Kit 1999/2000
This kit includes the following parts:
12480081 Pump Transmission Oil Cooler 1999/2000
12480082 Cooler - Assembly Transmission Oil 1999/2000
12480117 Wiring Harness 1999/2000
12480118 Clamp - Pump 1999/2000
12480087 Switch - Termal 1999/2000
12480088 Package - Hardware Fasteners 1999/2000



12480081 Pump, Transmission Oil Cooler
This special design electric oil pump is for cooling 6-speed transmissions in HD applications. This pump is designed to direct transmission fluid through P/N 12480082 HD cooler. (Part of 12480080 kit.)


--------------------------------------------------------------------------------


12480082 Cooler, Transmission Oil
This HD transmission oil cooler is designed for cooling 6-speed transmissions in HD applications. This cooler is designed to regulate transmission temperatures in HD applications. (Part of 12480080 kit.)


--------------------------------------------------------------------------------


12480087 Switch, Thermal
This special calibrated thermal switch is used to control the transmission pump. This thermal switch is calibrated to properly regulate the temperature of the 6-speed transmission in HD applications. Use with P/N 12480080 transmission kit.


--------------------------------------------------------------------------------


12480088 Package, Hardware Fasteners
This is a complete package of all fasteners and components used to install P/N 12480080 transmission kit.