CTS4V Blackwing Rear Brake Scoops - Page 2

cdb95z28 · 12-24-2021, 05:53 PM

The CT5 Blackwing video from Savage Geese is out, more video of the ducts

Mountain · 12-28-2021, 01:24 AM

Quote:

Originally Posted by cdb95z28

The CT5 Blackwing video from Savage Geese is out, more video of the ducts

The front duct PN doesn’t pull up (you can see the RH side in the video).

ZL1 1LE · 12-28-2021, 04:41 PM

Quote:

Originally Posted by h018871

I'm interested in looking at the front deflectors, can you scan installation instructions and take some pics of the items?

thx in advance

Sorry, I’ll get to this soon. It’s a possibility that they did not install the fronts during PDI and that I never received the rears.

RUQWIKR · 12-28-2021, 04:44 PM

FYI - on both the 4 & 5-V BW, the rear deflectors require you to pull the heat / dust shields off from behind the rear rotor. If not, the deflector end is almost up against the shield, and thus, directs the air right at the shield vs. the inboard side of the rotor. The Cadillac instructions say to put the shields back on after each track use and pull the deflectors I know, that’s not real practical. Just saying what I read.

On the 4-V BW front duct, it’s much shorter than the SS coupe track deflector, it’s not as tall inboard, and the link mounting positions are staggered cross-car and fore / aft compared to the Camaro. The 5-V BW front scoop looks like it mounts as the Camaro does but are missing holes for MRC strut harness. I’ll update once I know more.

ZL1 1LE · 12-29-2021, 07:13 PM

Sorry for the delay. Holiday and all that that entails. In any case, it's all a bit confusing regarding front and rear as the sticker on the bag that everything came in says front and the instructions just say front however, they contain instructions for the rears as well. I believe that the fronts are installed during PDI and the rears is what you see in the pic which are only to be installed for track usage. Please let me know if any other pics or dimensions etc... are required. Don't miss the link below the pics for the installation instructions.

cdb95z28 · 12-29-2021, 11:04 PM

Quote:

Originally Posted by ZL1 1LE

Sorry for the delay. Holiday and all that that entails. In any case, it's all a bit confusing regarding front and rear as the sticker on the bag that everything came in says front and the instructions just say front however, they contain instructions for the rears as well. I believe that the fronts are installed during PDI and the rears is what you see in the pic which are only to be installed for track usage. Please let me know if any other pics or dimensions etc... are required. Don't miss the link below the pics for the installation instructions.

Thank You for the info!

h018871 · 12-30-2021, 10:05 AM

Appreciate the info

ICTsccaCamaro · 01-09-2022, 09:14 PM

Is this the correct part number that we need to order for the rear only?
84946138

RUQWIKR · 01-10-2022, 08:03 AM

Top is SS 1LE and all ZL1 front. Then the regular SS track “only” version, then the 5-V BW. On my SS 1LE, I grind on track the bottom front quite a bit. The taller 5-V BW looks a little better for that. Might try them. As mentioned, the 4-V BW fronts don’t play nice for mounting to the link arm.

olblue75 · 01-10-2022, 09:11 AM

Can we get better rear vent pics.

Katech_Zach · 01-10-2022, 10:09 AM

Quote:

Originally Posted by RUQWIKR

Top is SS 1LE and all ZL1 front. Then the regular SS track “only” version, then the 5-V BW. On my SS 1LE, I grind on track the bottom front quite a bit. The taller 5-V BW looks a little better for that. Might try them. As mentioned, the 4-V BW fronts don’t play nice for mounting to the link arm.

What is the 5-V part number for front deflectors? Do you have those off hand?

Mountain · 01-10-2022, 10:10 AM

Quote:

Originally Posted by RUQWIKR

Top is SS 1LE and all ZL1 front. Then the regular SS track “only” version, then the 5-V BW. On my SS 1LE, I grind on track the bottom front quite a bit. The taller 5-V BW looks a little better for that. Might try them. As mentioned, the 4-V BW fronts don’t play nice for mounting to the link arm.

Thanks for posting this. The CT5-V BW front deflector looks a bit more "optimized" over the SS track deflectors. It would be interesting to run the SS track deflectors for a session, monitor caliper temp stickers, place a new sticker on, replace the deflector with the BW deflector and test again.

The SS track deflectors look to more-so simply deflect air towards the caliper and rotor hat.
The CT5-V BW deflectors look to attempt to scoop/guide air more strategically to the center of the rotor hat.

What are the part numbers on the CT5-V BW deflectors?

RUQWIKR · 01-10-2022, 12:04 PM

Quote:

Originally Posted by Mountain

Thanks for posting this. The CT5-V BW front deflector looks a bit more "optimized" over the SS track deflectors. It would be interesting to run the SS track deflectors for a session, monitor caliper temp stickers, place a new sticker on, replace the deflector with the BW deflector and test again.

The SS track deflectors look to more-so simply deflect air towards the caliper and rotor hat.
The CT5-V BW deflectors look to attempt to scoop/guide air more strategically to the center of the rotor hat.

What are the part numbers on the CT5-V BW deflectors?

They look it but don't have the lower front "finger" that might help some cars and hurt others via ground clearance. I'm keeping the SS track ones on my 17 SS 1LE and put these 5-V BW's on my new 22 ZL1 1LE that I just got since it is lower up front. I have all the ZL1 1LE aero on the 17, but, it's stock ride height FE4 suspension yet rubs the lower front finger on the SS track deflector as mentioned earlier.

Should be PN's 85536980 / 81.

FYI - on the rear deflectors on the 4 / 5-V BW's, they have external park brake calipers vs. drum-in-hat, so, they can get away with ducting towards the wheel bearing area besides the rotor without worry of debris getting into the drum-in-hat assembly. I'm not putting any of the rears on, and I have never had any rear dust seal heat damage in all the different "flavors" of brakes I have used on my 17 (J6M, J6H, J57).

h018871 · 01-10-2022, 04:48 PM

Quote:

Originally Posted by olblue75

Can we get better rear vent pics.

Top is the right deflector and spacer from the front, next is the left from the rear and bottom is the CT5-V BW right side control arm showing the inside and middle hole locations from the video. The middle hole makes it easy to duplicate the correct location because it's at the middle of the crosspiece between the holes.
I'm not cooking the rear boots either, but if I can get another session or even better another track day out of a set of pads, I'll be happy. My goal is to reduce consumable costs/day.

The backing plate would need only minor modification just below and to the rear of the caliper. You only need to remove ~ 2in, see bottom picture.

I really don't think the cooling will be as effective as the fronts, but the rears don't require as much.

Another step for rear cooling/longevity is to swap to Racing Brake rear pistons.
https://racingbrake.com/bc-42p
They're dimpled at the pad face to allow air in, no holes but still vented. Thx for the suggestion RUQWIKR

12-28-2021, 04:44 PM	#18
RUQWIKR Drives: 1LEs Join Date: May 2009 Location: DFW - Texas Posts: 1,319	FYI - on both the 4 & 5-V BW, the rear deflectors require you to pull the heat / dust shields off from behind the rear rotor. If not, the deflector end is almost up against the shield, and thus, directs the air right at the shield vs. the inboard side of the rotor. The Cadillac instructions say to put the shields back on after each track use and pull the deflectors I know, that’s not real practical. Just saying what I read. On the 4-V BW front duct, it’s much shorter than the SS coupe track deflector, it’s not as tall inboard, and the link mounting positions are staggered cross-car and fore / aft compared to the Camaro. The 5-V BW front scoop looks like it mounts as the Camaro does but are missing holes for MRC strut harness. I’ll update once I know more. Last edited by RUQWIKR; 01-15-2022 at 05:40 AM.

12-30-2021, 10:05 AM	#21
h018871 Geoff Drives: 2020 ZL1 Green Join Date: May 2013 Location: Houston Posts: 1,720	Appreciate the info __________________ Having a Blast https://www.camaro6.com/forums/showt...php?p=10741733

01-09-2022, 09:14 PM	#22
ICTsccaCamaro ITCRNRS Drives: 2018 ZL1 1LE Join Date: Jun 2012 Location: Wichita KS Posts: 1,575	Is this the correct part number that we need to order for the rear only? 84946138 __________________ 2018 ZL1 1LE Ordered 6/29/17 Built 11/6/17 Delivered 12/7/17, Summit White, PDR, NAV, https://www.youtube.com/c/tylerpotter SOLD: 2014 Summit White 1LE 2SS/RS, Recaros, NPP, NAV, KONI Yellow's SOLD: 2012 Black 2LT/RS, Fully 1LE swapped, Brembo swap

01-10-2022, 08:03 AM	#23
RUQWIKR Drives: 1LEs Join Date: May 2009 Location: DFW - Texas Posts: 1,319	Top is SS 1LE and all ZL1 front. Then the regular SS track “only” version, then the 5-V BW. On my SS 1LE, I grind on track the bottom front quite a bit. The taller 5-V BW looks a little better for that. Might try them. As mentioned, the 4-V BW fronts don’t play nice for mounting to the link arm. Attached Images

01-10-2022, 09:11 AM	#24
olblue75 Drives: 2010 2SS/RS Join Date: Dec 2009 Location: Clarksville Tennesse. Posts: 6,063	Can we get better rear vent pics. __________________ Orange Krush II 1LE Front sway bar, Splitter, shocks and struts, Z28 dual mode mufflers, Intake, UCA Bushings, and Toresen 3.91 Diff. 1 piece DSS Drive Shaft, ZL1/C7 Calipers, and 32mm JPSS Rear Bar. ASC race spec splitter and wicker. 6th Gen M017 Wheels. Stainless Works 1 7/8 LTs. DSE and PAFDT Suspension components.

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