06-27-2022, 10:35 AM | #15 | |
Drives: 2020 Camaro 2SS A10 Join Date: Jun 2018
Location: Michigan
Posts: 1,373
|
Quote:
The point is basic physics and gearing ratios. Lower gear slows you down faster if you let off the gas, the addition of brakes beyond that only adds to slow down the car in a shorter distance.
__________________
2020 Camaro 2SS A10 | Rebuilt by: CBI Street Cars | 2" SE LT Headers | 3" SE X-Pipe | 3" MBRP Axle-Back | Pri & Sec Cat Deletes | K&N Typhoon CAI | LT2 Ported | 95mm ZR1 TB | DOD Delete | BTR Stage I Cam | ECM, TCM & E85 |Tuned by: Shane Hinds | Dyno: 510 rwhp 472 rwtq
|
|
06-27-2022, 11:34 AM | #16 | |
Hot Camaro
Drives: '20 2SS Convertible 6MT Join Date: May 2020
Location: CT
Posts: 3,532
|
Quote:
In a rear drive car, the assist from the engine will come only from the rear wheels. Those wheels are not going to have the same level of grip as the fronts because how the weight of the car shifts to the front-end in a panic stop situation. In a front drive car, the brakes are already pushing the tires past their limit to kick in the ABS. |
|
06-27-2022, 01:15 PM | #17 |
Drives: Hyper Blue 2016 2SS 6M Join Date: Sep 2017
Location: North Ga
Posts: 1,786
|
[QUOTE=Crushin_LT1;11192306]I didn't realize unintended acceleration went back that far, I recall it being an "issue" circa 2010 for Toyotas.
You're just not old enough, obviously! The Audi 5000 started it all back in the '80's
__________________
Baby Blue
2016 Hyper Blue 2SS/6m/MRC/NPP/Silver Rally stripes/ZL1 wheels & brakes/GForce DS and axles/ZLE Cradle Bushings/FE4 ARB front & rear/SEMA Grill/Rotofab dry/95mm TB/Magnuson 2300/Full LT4 fuel system/JMS boost-a-pump/E85 Sensor/Ported CID heads from LME/Cammotion PD cam/Thompson Motorsports forged shortblock/catted Kooks 1 7/8 headers /JRE remote tuned |
06-27-2022, 01:26 PM | #18 | |
Drives: 2022 LT1, 1981 320i Join Date: May 2022
Location: Massachusetts
Posts: 71
|
Quote:
Basically, the tire is more important. For panic stops as long there is enough clamping force it all comes down to the tire. Other things than can help are forms of traction control to compensate for surface irregularities and change in direction, e.g. ABS. Don't get me wrong, brake bias, sizing, and weight distribution play an important role but if those things are setup right (as they usually are from the factory) it really comes down to reaction time, brake pads, and most importantly tires. |
|
06-27-2022, 01:38 PM | #19 | |
Drives: 2020 Camaro 2SS A10 Join Date: Jun 2018
Location: Michigan
Posts: 1,373
|
Quote:
__________________
2020 Camaro 2SS A10 | Rebuilt by: CBI Street Cars | 2" SE LT Headers | 3" SE X-Pipe | 3" MBRP Axle-Back | Pri & Sec Cat Deletes | K&N Typhoon CAI | LT2 Ported | 95mm ZR1 TB | DOD Delete | BTR Stage I Cam | ECM, TCM & E85 |Tuned by: Shane Hinds | Dyno: 510 rwhp 472 rwtq
|
|
06-27-2022, 02:52 PM | #20 | ||
Drives: 2017 Blue Camaro 1SS 1LE with PDR Join Date: Sep 2018
Location: Houston, TX
Posts: 954
|
Quote:
Quote:
"whether to downshift through all the gears or do what’s called skip-shifting (going directly from 6th or 5th to 3rd) is a matter of preference, as it rarely makes a difference to lap times...It also helps by allowing you to focus completely on using the brakes, and not worry so much about all the downshifts. If it sounds like I recommend skip-shifting downshifts, you’re right." Source: https://speedsecrets.com/q-should-i-...all-the-gears/ |
||
06-27-2022, 03:38 PM | #21 | |
Drives: 2020 Camaro 2SS A10 Join Date: Jun 2018
Location: Michigan
Posts: 1,373
|
Quote:
But that's exactly what it does downshifts to the lowest possible gear relative to speed. I imagine there is quite a bit of skip shifting in the 10 speed autos, but rather or not M6's can do it automatically I would imagine that is not the case. Specifically sharp turns, heavy braking or heavy acceleration is when performance shift kicks in automatically aside from manually engaging it. Would the M6's be able to do no lift downshifting? I mean if they had to?
__________________
2020 Camaro 2SS A10 | Rebuilt by: CBI Street Cars | 2" SE LT Headers | 3" SE X-Pipe | 3" MBRP Axle-Back | Pri & Sec Cat Deletes | K&N Typhoon CAI | LT2 Ported | 95mm ZR1 TB | DOD Delete | BTR Stage I Cam | ECM, TCM & E85 |Tuned by: Shane Hinds | Dyno: 510 rwhp 472 rwtq
|
|
06-27-2022, 04:42 PM | #22 |
Drives: 2017 Blue Camaro 1SS 1LE with PDR Join Date: Sep 2018
Location: Houston, TX
Posts: 954
|
Yes it makes sense for the automatics to downshift in those braking situations so you will be in the correct gear for maximum acceleration after the corner or panic stop. I was pointing out that downshifting during this braking does not reduce the braking distance compared to downshifting at the end of said braking.
|
06-27-2022, 09:29 PM | #23 |
Drives: 2023 ZL1 Vert M6 "Sharky" Join Date: Mar 2020
Location: Earth
Posts: 4,028
|
My front brakes, will definitely keep my vehicle from moving while stationary, 15.7" x 6-rotor/piston vs. RWD via the tire grip which will become a smoke show. The rear brakes will become toast due to the HP/TQ - as with most modern performance "high HP/TQ" RWD vehicles.
But as stated the road surface, then tires, then brakes matter. In that order. AND!!! I will add people say that situational braking is moot (and maybe in most cases) but say you are braking a lot in traffic, or on winding roads or just generally heating them up - with "normal" brakes you are increasing your distance, while rare from some, I have 10000000s of highway miles and... I have seen it 100s of times on the highway where people are in stop and go on the highway then they get moving and BLAM! Everyone says they were not paying attention; I blame the brake fade that people are not accustomed to. Think about it. In normal everyday driving you stop "like this", but you have just subjected the vehicle to heat overload, then get to speed and everyone stops - BLAM! brake fade. Main reason I keep my dusty ass pads.
__________________
2023 Camaro ZL1 Vert TR-6060 Sharkskin "Sharky"
Firecracker Red Wrangler Willys, 3.6L eTorque, 850RE 8 speed automatic, 25W Willys package, Technology Group, Convenience Group (aka $600 garage door opener), Cold weather Group, Trailer Tow and HD electric group with AUX switches, 3 piece black freedom top. |
06-28-2022, 12:04 AM | #24 | |
Drives: 2SS 1LE Join Date: Oct 2011
Location: AK
Posts: 2,292
|
Quote:
If the car in front of you just stopped...would you be able to stop? I'd bet in 99% of cases, the answer would be no. Having raced, sure, I've experienced brake fade. You gotta be pushing a car pretty hard (with brakes) to experience brake fade.
__________________
Everything happens for a reason, except when it doesn't, but even then, you can, in hindsight, fabricate a reason that satisfies your belief system.
2018 2SS 1LE 2023 Colorado ZR2 2022 Stinger GT-line AWD |
|
06-28-2022, 05:59 AM | #25 | |
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,136
|
Quote:
For the Audi 5000: Isolated owners reported cars taking off --> 60 Minutes picked up the story --> everybody with an Audi started crashing through their garage wall --> Government investigation. Conclusion: "Pedal Misapplication" caused the events. Audis of the time had European style setup with gas pedal closer to brake pedal. Despite many other vehicles having nearly identical pedal arrangements, Audi owners disproportionately found a way to hit the gas instead of the brakes. |
|
06-28-2022, 06:12 AM | #26 |
Drives: 6th gen Join Date: Aug 2013
Location: US
Posts: 3,664
|
If I remember correctly the 2016 motortrend head2head has the SS stopping shorter than the m4 with the $8,000 ccm brake package
__________________
‘22 2SS 1LE M6 Summit White - RF, Flexfuel, LT2 intake, 95mm tb, ATI udp, VT ramair, full 28” dragpack - 11.68@122
‘16 1SS M6 LT2 intake + boltons on DR 11.0@126+ (Sold) |
06-28-2022, 07:07 AM | #27 | |
Drives: 2021 LT1 6spd Join Date: Nov 2020
Location: Arlington, VA
Posts: 763
|
Quote:
I can't argue with you there, lol.
__________________
Current: 2021 LT1 Camaro, 6spd, Crush, Corsa NPP, GMPP CAI, Soler Performance Throttle controller
Previous: 1997 V6 Camaro, 5spd, Black |
|
|
|
Post Reply
|
Thread Tools | |
|
|