If OEM exhaust systems are so well engineered for their application, what can we do to improve upon their design? Once again, we are not smarter than they are, but we are also not playing by the same rules. They have VERY strict guidelines to follow. Why do they need to concentrate on low-end performance improvements so much? Is it because the performance robbing restrictions they are forced to put in place to control noise and emissions FORCE them to creatively compensate? If so, the real question is… can we do better?
A true motorcycle performance enthusiast’s dream come true! In this episode of ‘Stock to Brock’, Brock’s Performance owner, Brock Davidson, dives deep into the theory behind full exhaust system development for our 2017 GSX-R1000 project bike. Brock addresses looks, sound, weight reduction and answers the question, “Will we measure a true performance increase over stock?”
As usual, Brock does his best to try and tackle this very complicated subject, while making it as fun and enjoyable as possible for all experience levels.
2017 GSX-R1K S2B: Episode 1 - Parts Introduction & Overview: • 2017 GSX-R1000 S2B: Ep...
2017 GSX-R1K S2B: Episode 2 - Initial Dyno Break-In with Chart: • 2017 GSX-R1000 S2B: Ep...
2017 GSX-R1K S2B: Episode 3 - Throttle Blade Derestriction: • 2017 GSX-R1000 S2B: Ep...
2017 GSX-R1000 Stock to Brock - SPECIAL EDITION (Q&A) from Episode 3 : • 2017 GSX-R1000 S2B: SP...
2017 GSX-R1K S2B: Episode 4 - Exhaust Installation and Theory (Part 1): • 2017 GSX-R1000 S2B: Ep...
2017 GSX-R1K S2B: Episode 4 - Exhaust Installation and Theory (Part 2): • 2017 GSX-R1000 S2B: Ep...
The details :
Brock’s Performance 2017 GSX-R1000L7 Standard model (not the ‘R’ version)
Traction control - Motion Track Traction Control Standard (TC=OFF during testing)
Suzuki Drive Mode Selector (S-DMS) Power Mode=A (max power selected during testing)
Fuel used during test: Shell 89 Octane (choices available at our local Shell are 87, 89, 93 octane - we selected mid-grade for our tests)
Rear tire: Stock Bridgestone Battlax RS10 190/55/ZR17 - 35 PSI Nitrogen
Motor oil: As delivered (unknown)
Air filter: OEM
PAIR: Blocked
Power Commander: On bike with ZERO map installed (equivalent to no Power Commander at all)
ECU: Stock or modified, per video requirements.
5th gear pulls
Exhaust: Brock’s Performance Alien Head 2 prototype (Brock’s Performance Predator™ full titanium exhaust system used for demonstration purposes.)
Dynojet Model 250I dyno using DynoWare RT and WinPep 8 dyno control - displaying the SAE scale (unless noted otherwise in video)
0:00 Video introduction
0:58 Time to get serious
1:43 Combinations
2:19 We do things differently at Brock’s Performance
2:56 The dragstrip is a tool used to measure acceleration
3:11 The 3 L’s of drag racing
4:29 The endoscope proves… we got it wrong!
5:37 Plugging a standard crossover tube
6:38 Can we outperform the OEM exhaust?
6:59 Weight of OEM exhaust = 23 lbs. (10.43 Kilograms)
7:40 Weight of Brocks Performance Predator™ Full Titanium Exhaust = 8.25 lbs (3.74 Kilograms)
8:34 Built to take the heat of the 2017 GSX-R1000 traction control system
8:45 Side by side OEM vs. Predator exhaust comparison/discussion
13:00 OEM narrow band O2 sensor
15:00 Exhaust considerations when lowering your motorcycle
16:28 Alien Head 2 exhaust on scale
16:50 Pipes must look good and sound good also
16:57 Predator noise insert is designed to reduce noise - not the best combination for the dyno/racetrack
17:42 Alien Head 2 weight = 9.35 lbs (4.24 Kilograms)
18:05 What’s up with the ugly welds on the Alien Head?!
18:50 Alien Head 2 design discussion
19:50 Nitrous oxide or larger displacement engines
21:20 A small change in gearing can yield big gains in acceleration
22:20 Oversized tube design compliments ram air performance
23:37 Use your hand to feel pressure at 60 MPH. The new GSX-R can go faster than that, in first gear
24:27 We are not in the business of selling products that don’t work well
25:14 Would the “Giants” sell you a pipe if mapping was mandatory? We don’t think so.
25:40 At Brock’s, we use what we sell
26:28 Alien Head 2 contains Ninja H2 baffle packing - use your traction control all you want
27:38 Bike warm up and dyno run with Alien Head 2 installed
28:25 Dyno run results comparison/discussion of stock vs. Alien Head
31:37 Stock vs. Alien Head 2 vs. Alien Head 2 with basic ECU flash (no tuning whatsoever)
33:05 No tune AFR (Air Fuel Ratio) readings
33:38 Conclusion and what to expect in Episode 5
2017 GSX-R 1000 Information Page: www.brocksperformance.com/bro...
Visit www.BrocksPerformance.com for additional information, installation instructions, information forums, and FAQ sections.
29 июл 2024
