Why Do FAST Drivers HATE Factory Suspension Bushes?
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No competent driver likes a car that moves around under braking and is lazy to turn in or out of a corner for no good reason, so they throw many OEM suspension components in the rubbish bin, including factory rubber bushings. Why?
James Bourn of Powerflex explains that while rubber bushings, aka bushes, provided by the OEM are good at cutting back noise, vibration and harshness (NVH), they are not made to last, nor are they made to perform. They are made to tick the right boxes for the price without compromising handling so much that they get land vehicles with poor safety ratings, as well as lasting just long enough to not be a warranty claim.
For better performance, one alternative is to remove as much compliance as possible using solid bushes, mounts and spherical bearings etc., such as you find in many dedicated motorsport applications. But this, 100% without fail, introduces incredible NVH that is white noise on a race track and permanent hearing loss inflicting, or divorce, territory on the road.
Instead of solid mounts or rubber, we can have our cake and eat it too with polyurethane options instead which offer less compliance than OEM rubber bushes along with a longer lifespan, to the point they come with a lifetime warranty (but only for road and classic car use, NOT the BLACK SERIES aimed at motorsport sadly!), along with levels of NVH that won't give you PTSD from a 12-hour cross country road trip.
On top of that, polyurethane bushes will give you, the driver, more confidence in the vehicle leading to more consistent lap times and pace, making better use of all that time and money it takes to get your car out on track in the first place.
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TIME STAMPS:
0:00 - The Last Thing Many Think Of
0:26 - Rubber OEM Bushings
1:15 - Why OEM Use Rubber
1:58 - NVH Considerations
2:51 - Compliance (Movement) & Solid Bushes
4:10 - Polyurethane Performance
5:02 - Powerflex Bush vs OEM/Factory Bush
5:59 - Deflection Testing Comparisons
6:35 - Less Compliance = More NVH
6:44 - 'Insert' Bushings
7:51 - Inserts Assume Bushes Are Serviceable
8:03 - Wear Over Time
9:07 - Driver Feedback
9:24 - Thank You, James!
10:00 - The More You Know, The Faster You Go!
------------------------------------
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🔧 Interested in learning how to do your own wheel alignment for the track or street? Start with a free alignment & suspension 101 lesson now: https://hpcdmy.co/aljyt
🛻 Learn more about performance diesel engine tuning. Start instantly with 4 free lessons: https://hpcdmy.co/essential-diesel-kn...
------------------------------------
LINKS:
Website and Courses: https://hpcdmy.co/hpa
Podcast: https://hpcdmy.co/podcast
Merch (HPA tees & hoodies): https://hpcdmy.co/merchy
------------------------------------
TAGS:
#highperformanceacademy #powerflex #bushes #powerflexbushes #bushings #bush #polyurethane #suspension #suspensionparts #racecar #auto #automotive #carmods #trackday #datanerd #gofasterwithdata #racecraft #learndriveoptimise #motorsport #buildtunedrive #sema @semashow @PowerflexSuspensionBushes
Get 50% off your first Suspension Tuning Fundamentals course: https://hpcdmy.co/offery50
No competent driver likes a car that moves around under braking and is lazy to turn in or out of a corner for no good reason, so they throw many OEM suspension components in the rubbish bin, including factory rubber bushings. Why?
James Bourn of Powerflex explains that while rubber bushings, aka bushes, provided by the OEM are good at cutting back noise, vibration and harshness (NVH), they are not made to last, nor are they made to perform. They are made to tick the right boxes for the price without compromising handling so much that they get land vehicles with poor safety ratings, as well as lasting just long enough to not be a warranty claim.
For better performance, one alternative is to remove as much compliance as possible using solid bushes, mounts and spherical bearings etc., such as you find in many dedicated motorsport applications. But this, 100% without fail, introduces incredible NVH that is white noise on a race track and permanent hearing loss inflicting, or divorce, territory on the road.
Instead of solid mounts or rubber, we can have our cake and eat it too with polyurethane options instead which offer less compliance than OEM rubber bushes along with a longer lifespan, to the point they come with a lifetime warranty (but only for road and classic car use, NOT the BLACK SERIES aimed at motorsport sadly!), along with levels of NVH that won't give you PTSD from a 12-hour cross country road trip.
On top of that, polyurethane bushes will give you, the driver, more confidence in the vehicle leading to more consistent lap times and pace, making better use of all that time and money it takes to get your car out on track in the first place.
------------------------------------
TIME STAMPS:
0:00 - The Last Thing Many Think Of
0:26 - Rubber OEM Bushings
1:15 - Why OEM Use Rubber
1:58 - NVH Considerations
2:51 - Compliance (Movement) & Solid Bushes
4:10 - Polyurethane Performance
5:02 - Powerflex Bush vs OEM/Factory Bush
5:59 - Deflection Testing Comparisons
6:35 - Less Compliance = More NVH
6:44 - 'Insert' Bushings
7:51 - Inserts Assume Bushes Are Serviceable
8:03 - Wear Over Time
9:07 - Driver Feedback
9:24 - Thank You, James!
10:00 - The More You Know, The Faster You Go!
------------------------------------
FREE LESSONS:
🏎 Want to learn how to EFI an aftermarket ECU like a MoTeC, Haltech, Link, AEM, Syvecs, EMtrom, Maxx, Ecumaster, MegaSquirt, Arduino, MicroSquirt, Holley, FuelTech, ME or something else entirely different? Start with some free lessons right here: https://hpcdmy.co/EFI101y
💻Start learning how to reflash tune your stock ECU using platforms like HP Tuners, EcuTek, COBB, EFILive, Hondata, ECUFlash, Romraider, WinOLS and more! Sign up for the next free lesson now: https://hpcdmy.co/hptly
⚠️ Want to learn more about motorsport wiring? Claim your spot in the next FREE lesson: https://hpcdmy.co/wiringlessonyt
🧰 Learn more about Performance Engine Building by coming along to the next FREE lesson: https://hpcdmy.co/eby
🔧 Interested in learning how to do your own wheel alignment for the track or street? Start with a free alignment & suspension 101 lesson now: https://hpcdmy.co/aljyt
🛻 Learn more about performance diesel engine tuning. Start instantly with 4 free lessons: https://hpcdmy.co/essential-diesel-kn...
------------------------------------
LINKS:
Website and Courses: https://hpcdmy.co/hpa
Podcast: https://hpcdmy.co/podcast
Merch (HPA tees & hoodies): https://hpcdmy.co/merchy
------------------------------------
TAGS:
#highperformanceacademy #powerflex #bushes #powerflexbushes #bushings #bush #polyurethane #suspension #suspensionparts #racecar #auto #automotive #carmods #trackday #datanerd #gofasterwithdata #racecraft #learndriveoptimise #motorsport #buildtunedrive #sema @semashow @PowerflexSuspensionBushes
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