Dyno numbers?

[Andi]

Hey y'all,

• It looks like we've got our first CT4V-BW dyno. Click here for the IG post. Looks largely similar to ATS-V numbers.
• Has anyone dyno'd a CT5V-BW yet? I'm really curious to see.

Thanks! Cheers,
Andi

 

[Wing Nut]

Could we get a copy of the dyno graph?

 

[Andi]

Could we get a copy of the dyno graph?

 

[RDATLTE]

WONT TAP's CT4-V Blackwing

I'll start with a picture of my daughter and me sitting in a hotel room, waiting for the pre-order window to open up back on February 1.

www.cadillacvnet.com

 

[Andi]

WONT TAP's CT4-V Blackwing

I'll start with a picture of my daughter and me sitting in a hotel room, waiting for the pre-order window to open up back on February 1.

www.cadillacvnet.com

Oh dang my bad I didn’t realize there was a BW performance forum too

 

[poor-sha]

Oh dang my bad I didn’t realize there was a BW performance forum too

Me neither. I just posted a bunch of technical crap in this forum.

 

[Andi]

620rwhp!

Happy dyno or reality?

 

[Blackwing86]

620rwhp!

Happy dyno or reality?

I sure hope so. Would mean underrated by about 60hp

 

[burn813]

I sure hope so. Would mean underrated by about 60hp

Wheel HP is always about a 20% loss from the Manufacturers HP (At the engine)

 

[rdollie]

Not a happy dyno nor reality. These idiots did their run with around 100 mils on the car which is well before break-in at 500 miles. The redline is limited to 4,500 (and break-in spec is to not exceed 4,000 so I wouldn't touch that car) and my buttometer says their was definitely more area under the curve up to 4,000 during break-in than after. They need to re-run after break-in.

 

[marfan]

Not a happy dyno nor reality. These idiots did their run with around 100 mils on the car which is well before break-in at 500 miles. The redline is limited to 4,500 (and break-in spec is to not exceed 4,000 so I wouldn't touch that car) and my buttometer says their was definitely more area under the curve up to 4,000 during break-in than after. They need to re-run after break-in.

Per Mirza (I can't find the post at the moment) redline is not actually limited but just a visual reminder on the tach. Interesting that you perceived a drop-off in torque after break-in. Will be interesting to see what the dynos show with properly broken in cars.

 

[rdollie]

Interesting, thanks. Yes, the car was definitely more peppy down low when you stepped on it during break-in compared to after. But again, that's based on the buttometer, not actual data so we'll see!

 

[WONT TAP]

Wheel HP is always about a 20% loss from the Manufacturers HP (At the engine)

In the old days, 20% drivetrain loss was realistic for cars with automatic transmissions. Things are much more efficient these days, due to the evolution of things like torque converter clutches that completely lock up and have zero slip at WOT.

In my opinion, it's more realistic to use drivetrain loss numbers in the 8% (manual transmission) to 10% (automatic transmission) range. In fact, our CT4-V Blackwing A10 baseline dynos at 425 whp, which would be 10% drivetrain loss if we assume the factory chp rating is accurate.

 

[burn813]

In the old days, 20% drivetrain loss was realistic for cars with automatic transmissions. Things are much more efficient these days, due to the evolution of things like torque converter clutches that completely lock up and have zero slip at WOT.

In my opinion, it's more realistic to use drivetrain loss numbers in the 8% (manual transmission) to 10% (automatic transmission) range. In fact, our CT4-V Blackwing A10 baseline dynos at 425 whp, which would be 10% drivetrain loss if we assume the factory chp rating is accurate.

8% is pretty much where they are on the Manual with the dyno numbers if we are looking at a car that is a 668 and the high number they got was 627, that is about an 8% loss. I guess I was meaning "up to 20% loss" if that makes sense.

sorry for the confusion.

 

[Andi]

This impresses me more than anything because ZL1s tend to dyno 560ish… maybe they added a lot more power than they said they did…

also note, the ZL1 is 200 lbs lighter and GM advertises it as a 127mph car in the quarter. And the 5BW, at 129mph. One would expect more than 20 hp to be necessary to make that difference. Which lends credence to the theory that they added more than 20 horses makes me hope this dyno is right.

 

[drkchai]

C&D tested a 6mt with CCB and no sunroof. they got 11.6 sec @ 125 mph

DIMENSIONS
Wheelbase: 116.0 in
Length: 194.9 in
Width: 74.1 in
Height: 56.6 in
Passenger Volume: 98 ft3
Trunk Volume: 12 ft3
Curb Weight: 4092 lb

C/D TEST RESULTS
60 mph: 3.6 sec
100 mph: 7.7 sec
1/4-Mile: 11.6 sec @ 125 mph
130 mph: 12.4 sec
160 mph: 21.1 sec
Results above omit 1-ft rollout of 0.3 sec.
Rolling Start, 5–60 mph: 4.3 sec
Top Gear, 30–50 mph: 7.6 sec
Top Gear, 50–70 mph: 6.2 sec
Top Speed (C/D est): 205 mph
Braking, 70–0 mph: 154 ft
Braking, 100–0 mph: 321 ft
Roadholding, 300-ft Skidpad: 1.02 g

Tested: 2022 Cadillac CT5-V Blackwing Is an Epic Sendoff

Cadillac's final V-8 sports sedan before it goes fully electric is a jewel worth treasuring.

www.caranddriver.com

 

[drkchai]

C&D results on zl1 6mt vs. 10at

6mt
Curb weight: 3904 lb
Standing ¼-mile: 12.0 sec @ 122 mph

10at
Curb weight: 3933 lb
Standing ¼-mile: 11.5 sec @ 125 mph

I can see a 10at ct5v BW with CCB and no sunroof hitting GM's advertised 129mph number.

 

[CMac_FL]

#47 - on the dyno. CT5 10spd