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Auxiliary brake cooling ducts same as the ZO6. In a bag in the rear.
Extra panels to be installed in the torque tube tunnel close out panel to fill the holes for better airflow under the car. In a bag in the car. For track use only.
Rear Wing installation bolts are Tamper Proof Torx Socket, 5 Point, T30, not your standard six point Torx drive. Not supplied with the car. If you want to adjust the rear wing angle you will need to buy one.
I read a bulletin that GM released yesterday stating the larger brake ducts can not be installed on the ZR1 due to interference with the front wheels. We're supposed to leave them in the car and not install or trim them to fit.
Last edited by Steve Garrett; 03-27-2018 at 11:03 PM.
I read a bulletin that GM released yesterday stating the larger brake ducts can not be installed on the ZR1 due to interference with the front wheels. We're supposed to leave them in the car and not install or trim them to fit.
If these ducts are the same as the Z06 then that doesn't make any sense. I've been running them on 18x11 front wheels without issue and I don't see how they could possibly contact.
If these ducts are the same as the Z06 then that doesn't make any sense. I've been running them on 18x11 front wheels without issue and I don't see how they could possibly contact.
If these are the duct that diverts air to the brakes those as you stated can definitely be installed if they are the same size as the Z06. They just can't be installed until the PDI because the cars cannot be transported with them on.
MODELS 2019 Chevrolet Corvette ZR1
TO All Chevrolet Dealers
ATTN Service Manager, Shop Foreman
** Please share this information with technicians **
The wide brake deflectors (loose items shipped with the car) will not fit due to an interference with the brake duct. The wide deflectors should not be installed.
DO NOT modify the brake duct to make the wide deflector fit.
The narrow deflector should be installed at the time of PDI and no change is required for track use.
Bulletin 16-NA-363 is being revised to reflect this information.
MODELS 2019 Chevrolet Corvette ZR1
TO All Chevrolet Dealers
ATTN Service Manager, Shop Foreman
** Please share this information with technicians **
The wide brake deflectors (loose items shipped with the car) will not fit due to an interference with the brake duct. The wide deflectors should not be installed.
DO NOT modify the brake duct to make the wide deflector fit.
The narrow deflector should be installed at the time of PDI and no change is required for track use.
Bulletin 16-NA-363 is being revised to reflect this information.
MODELS 2019 Chevrolet Corvette ZR1
TO All Chevrolet Dealers
ATTN Service Manager, Shop Foreman
** Please share this information with technicians **
The wide brake deflectors (loose items shipped with the car) will not fit due to an interference with the brake duct. The wide deflectors should not be installed.
DO NOT modify the brake duct to make the wide deflector fit.
The narrow deflector should be installed at the time of PDI and no change is required for track use.
Bulletin 16-NA-363 is being revised to reflect this information.
Probably a new ME grad hired last year, who, using the most "high tech" analytical tools known to mankind, spent that past year designing the air deflector, only to discover that it didn't fit once they started building production ZR1's.
The cooling deflector ,which bolts to the front of the lower control arm, supplied with the accessory front brake cooling kit is too wide and interferes with the brake cooling ducts which supply air through the grill. The standard brake deflectors that are installed during PDI are to be used. The accessory front brake cooling ducts that install below the front lower control arm and supply air to the rear of the rotor and caliper are OK to install for track use. This is the same accessory front brake cooling duct supplied with the 2017+ Z06
This kind of stuff is going to happen with many first-year models. Hopefully they will come up with a solution soon. In the meantime let's hope the current pieces are adequate for mild track use.
I have a hard time believing that with ALL OF THE TESTING performed prior to production that GM had no clue that the brake ducts didn't fit properly but went to the expense to manufacture and ship them with the car only to find out after the fact that they don't fit?????
I have a hard time believing that with ALL OF THE TESTING performed prior to production that GM had no clue that the brake ducts didn't fit properly but went to the expense to manufacture and ship them with the car only to find out after the fact that they don't fit?????
In going back to the reference to GM bulletin 16-NA-363 it appears that the smaller brake deflectors are to be installed as well as the 4 small air boxes (2 front and 2 rear). The larger brake deflectors I understand do not fit. The metal wheel rings and 2 long air ducts are for track events and are not put on at PDI. For some reason my dealer did not install the 4 air boxes although the bulletin says they get installed during PDI. Going to check with them but perhaps they don't fit as well? These 4 air boxes are shown in the bottom part of the left photo just above the plastic parts bag.
I doubt there is are any additional cooling ducts for the rear brake. The 4 air boxes you refer to appear to be very similar to what the Z06 got in 2017 in which case what you are looking at are the two halves of the ducts that go around the lower control arm to make one duct per front wheel. Item 2 in your picture looks like the duct on the Z06 that runs from the opening in the grill back to the front of the wheel well.
I doubt there is are any additional cooling ducts for the rear brake. The 4 air boxes you refer to appear to be very similar to what the Z06 got in 2017 in which case what you are looking at are the two halves of the ducts that go around the lower control arm to make one duct per front wheel. Item 2 in your picture looks like the duct on the Z06 that runs from the opening in the grill back to the front of the wheel well.
The bulletin says to install items in photographs marked #1 at PDI and that items marked #2 are installed by customer for track events.
probably a new me grad hired last year, who, using the most "high tech" analytical tools known to mankind, spent that past year designing the air deflector, only to discover that it didn't fit once they started building production zr1's.
03-27-2018, 07:19 PM
Few items supplied with a 2019 ZR1
Exactly!
