Notices
Boxster & Boxster S (986) Forum 1996-2004
Sponsored by:
Sponsored by:

RSS | # 608 Harmonically Damped - Underdrive Performance Pulley Kit | 986

Thread Tools
 
Search this Thread
 
Old 01-10-2019, 03:54 PM
  #1  
RSSmike
Former Vendor
Thread Starter
 
RSSmike's Avatar
 
Join Date: Nov 2015
Posts: 593
Likes: 0
Received 8 Likes on 7 Posts
Thumbs up RSS | # 608 Harmonically Damped - Underdrive Performance Pulley Kit | 986

RSS | # 608 Harmonically Damped - Underdrive Performance Pulley Kit | (New) Fits 986 | In Stock!

Website Link: http://roadsportsupply.com/608-harmo...6-987-996-997/


The RSS Harmonically Damped Underdrive Pulley is ideal for engines that are running light weight flywheels, engines that are built - bored/stroked and stock engines that are driven hard.
  • Improved HP & TQ by reducing drag from the power steering pump, A/C, water pump and alternator without adverse effects on said ancillary systems.
  • Dampens/reduces internal engine harmonics for improved engine performance, efficiency and longevity.
  • Recommended for street and track use
  • Made in USA
Fits on all Porsche 986, 996, 987, 997 models EXCEPT 2.9L (multi hole crank pulley pattern), DFI engines, GT2, GT3 and Turbo.

Installation tool (wrench) and New OEM Pulley Washer included:

Dyno Image shows HP & TQ gain on 2005 997.1 Carrera S:Baseline Dyno Run Mods: OEM Crank Pulley, OEM Software, Cargraphic Headers, Hi flow 200 Cell Cats, and Medium Sound Cargraphic Sport Mufflers
Modified Dyno Run: Added RSS Pulley (Part #608) to baseline car with existing mods:
+16 HP / +8 ft lbs TQ

*NOTE: We recommend using/sourcing a new OEM Crank Shaft Pulley Bolt for your specific vehicle when installing the RSS Pulley. (Not Included with 608 Kit)

We recommend using the appropriate length belt RSS # 6PK which can also be purchased Website Link: http://roadsportsupply.com/6pk-conti...-kits-601-608/











Last edited by RSSmike; 09-19-2019 at 01:10 PM.
Old 09-19-2019, 01:10 PM
  #2  
RSSmike
Former Vendor
Thread Starter
 
RSSmike's Avatar
 
Join Date: Nov 2015
Posts: 593
Likes: 0
Received 8 Likes on 7 Posts
Default

RSS # 608 Harmonically Damped - Underdrive Performance Pulley Kit (New) Fits 986 In Stock!

Website Link: http://roadsportsupply.com/608-harmo...6-987-996-997/


The RSS Harmonically Damped Underdrive Pulley is ideal for engines that are running light weight flywheels, engines that are built - bored/stroked and stock engines that are driven hard.

  • Improved HP & TQ by reducing drag from the power steering pump, A/C, water pump and alternator without adverse effects on said ancillary systems.
  • Dampens/reduces internal engine harmonics for improved engine performance, efficiency and longevity.
  • Recommended for street and track use
  • Made in USA
Fits on all Porsche 986, 996, 987, 997 models EXCEPT 2.9L (multi hole crank pulley pattern), DFI engines, GT2, GT3 and Turbo.

Installation tool (wrench) and New OEM Pulley Washer included:

Dyno Image shows HP & TQ gain on 2005 997.1 Carrera S:Baseline Dyno Run Mods: OEM Crank Pulley, OEM Software, Cargraphic Headers, Hi flow 200 Cell Cats, and Medium Sound Cargraphic Sport Mufflers
Modified Dyno Run: Added RSS Pulley (Part #608) to baseline car with existing mods:
+16 HP / +8 ft lbs TQ

*NOTE: We recommend using/sourcing a new OEM Crank Shaft Pulley Bolt for your specific vehicle when installing the RSS Pulley. (Not Included with 608 Kit)

We recommend using the appropriate length belt RSS # 6PK which can also be purchased Website Link: http://roadsportsupply.com/6pk-conti...-kits-601-608/










Old 09-22-2019, 11:51 AM
  #3  
Brian in Tucson
Racer
 
Brian in Tucson's Avatar
 
Join Date: Jan 2018
Posts: 347
Received 14 Likes on 13 Posts
Default

Pretty pictures! I put a UDP on my 01 2.7. Just the plain, cheap one. It's married to a Tip, which only has a flexplate. Doesn't the increase in the performance come from the lower ratio pulley and not from the harmonic balancer? I would think more smoothness would be available by installing an alternator from a 5 speed engine--with the clutch pulley. Mine has the original with the solid pulley, I can't notice much engine vibration.

When I bought my relatively cheap UDP, it included a new, correctly sized serpentine belt. I would think that your high priced spread could include one, too. And maybe a new crank bolt, too. $415, WHEW! Spendy.
Old 12-02-2019, 02:41 AM
  #4  
YellowBoxster951
Rennlist Member
 
YellowBoxster951's Avatar
 
Join Date: Nov 2019
Posts: 116
Received 11 Likes on 4 Posts
Default

Originally Posted by Brian in Tucson
Pretty pictures! I put a UDP on my 01 2.7. Just the plain, cheap one. It's married to a Tip, which only has a flexplate. Doesn't the increase in the performance come from the lower ratio pulley and not from the harmonic balancer? I would think more smoothness would be available by installing an alternator from a 5 speed engine--with the clutch pulley. Mine has the original with the solid pulley, I can't notice much engine vibration.

When I bought my relatively cheap UDP, it included a new, correctly sized serpentine belt. I would think that your high priced spread could include one, too. And maybe a new crank bolt, too. $415, WHEW! Spendy.
How is it holding up? thinking of grabbing one off ebay for $199 with pulley and belt.
Old 12-17-2019, 06:05 PM
  #5  
RSSmike
Former Vendor
Thread Starter
 
RSSmike's Avatar
 
Join Date: Nov 2015
Posts: 593
Likes: 0
Received 8 Likes on 7 Posts
Default

For those shopping, we have a handful of 608 Pulley Kits left in stock!
Old 09-19-2020, 03:38 PM
  #6  
arscottp
Rennlist Member
 
arscottp's Avatar
 
Join Date: Feb 2020
Location: NC
Posts: 548
Received 262 Likes on 129 Posts
Default

wrong thread :/

Last edited by arscottp; 09-20-2020 at 11:00 AM.



Quick Reply: RSS | # 608 Harmonically Damped - Underdrive Performance Pulley Kit | 986



All times are GMT -3. The time now is 09:43 AM.