[SFV1LE]

You don't need brake cooling ducts on a ZLE, I drive mine hard on CA tracks in 95+ degree weather and the brakes with only stock pads and DOT 4 (Castrol SRF or Brembo Racing) are one of the most capable features of this car. In ~25 track days they have never faded, I did upgrade to SS brake lines I recommend this but not needed for your first days.

[clg82]

Originally Posted by SFV1LE

You don't need brake cooling ducts on a ZLE, I drive mine hard on CA tracks in 95+ degree weather and the brakes with only stock pads and DOT 4 (Castrol SRF or Brembo Racing) are one of the most capable features of this car. In ~25 track days they have never faded, I did upgrade to SS brake lines I recommend this but not needed for your first days.

I don't think you even need that for a regular ZL1 correct?

[SFV1LE]

Originally Posted by clg82

I don't think you even need that for a regular ZL1 correct?

No I agree you don't but he has a ZLE so that's why I specified that. ZLE has brake cooling blade things on front suspension arms IIRC, if so assume regular ZLE dues too. Brakes would be fine without those.

[Idaho2018GTPremium]

Originally Posted by XQZMYZ

The manual states on page 186:

Rear Axle Fluid
Axles must have 2 400 km (1,500 mi) before
being used in track driving.
The rear axle fluid temperatures may be
higher than when driving in severe
conditions. Drain and refill with new fluid
after the first racing or competitive driving
event, and then after every 24 hours of
racing or competitive driving. See
Recommended Fluids and Lubricants 0 313

Chevy recommends changing it AFTER your first track event, then every 24 hours of track use thereafter. I doubt if would hurt to change it before, but they recommend to change it immediately after the first track use. I'm guessing there is a reason for this.

In the break in section on page 199 it clearly says to change it before any track driving:
“. Should the vehicle be used for racing or competitive driving (after break-in), the rear axle lubricant must be replaced beforehand.”

[Maro_89]

Originally Posted by sanz521

I plan on going to the track on 5/21 with my car and after going through the stickys and what not, just wanted to see if theres anything else i shooud do. Car should be at around 1200-1400 miles by then.

500 Mile Oil Change: Done already at the dealer, should i get another one before the track day?

Diff fluid change: worth doing before or wait till after

High temp brake fluid/brake bedding: deff doing this, miami is already too hot

extra brake cooling ducts install: do they make enough of a difference?

I'm assuming your going to the Speedway race track over in Homestead since PBIR's track recently closed?

[sanz521]

Originally Posted by SFV1LE

You don't need brake cooling ducts on a ZLE, I drive mine hard on CA tracks in 95+ degree weather and the brakes with only stock pads and DOT 4 (Castrol SRF or Brembo Racing) are one of the most capable features of this car. In ~25 track days they have never faded, I did upgrade to SS brake lines I recommend this but not needed for your first days.

Thanks for this. Having cooked the brakes on my previous car i was a bit concerned, but then again my other did not have the massive air intakes for the brakes the 1LE has. Im just gonna swap the brake fluid and change the oil to the 15W30 since i do have the sticky ass tires.

[sanz521]

Originally Posted by Maro_89

I'm assuming your going to the Speedway race track over in Homestead since PBIR's track recently closed?

Yeah I haven't done PBIR before, I always do homestead. trying to do sebring next.

[XQZMYZ]

Originally Posted by Idaho2018GTPremium

In the break in section on page 199 it clearly says to change it before any track driving:
“. Should the vehicle be used for racing or competitive driving (after break-in), the rear axle lubricant must be replaced beforehand.”

Touche!

Just seems like a lot of oil changing...
After 500 miles? Change diff oil!
After 1500 miles and want to track? Change diff oil!
Had your first track day? Change diff oil!

[Vigilante375]

Originally Posted by XQZMYZ

Touche!

Just seems like a lot of oil changing...
After 500 miles? Change diff oil!
After 1500 miles and want to track? Change diff oil!
Had your first track day? Change diff oil!

It may be excessive but it's because they want to make sure that any of the metal shavings that are floating around aren't there anymore to potentially cause damage.