Help: BBI Clutch Slave Conversion Kit - 6SpeedOnline - Porsche Forum and Luxury Car Resource

Notices
997 Turbo / GT2 2006Ė2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.

Help: BBI Clutch Slave Conversion Kit

 
  #1  
Old 03-09-2019, 08:32 AM
Registered User
Thread Starter
Join Date: Jan 2004
Posts: 390
Rep Power: 58
NWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond repute
Help: BBI Clutch Slave Conversion Kit

Hi, hoping someone can help me with the BBI Slave Kit. I just received it, and in addition to the unit itself, I also received what
I think is the Clutch Pedal Spring.

I've researched the forum, and found out that many people install a GT3 Pedal Spring so the pedal is not so stiff. GT3 Pedal Spring 997-423-081-06.

The pedal spring that is included with the kit has the part numbers 997.423.579.00. I've tried searching this part number but nothing turns up?

I did find that ECS Tuning sells the GT3 Clutch Pedal Spring but the picture of the GT3 helper spring on their site has the same part number 997.423.579.00 of what I was sent. But on their site, they list the part number as 997-423-081-06.

https://www.ecstuning.com/b-genuine-...u/99742308106/

I'm assuming that the pedal spring included with the BBI kit is actually the same GT3 Pedal Spring, and that Porsche has just put their part number on the OEM suppliers part which has their own number?

Anyways, hoping someone can chime in. Thanks in advance!

Is this the GT3 Pedal Spring? 997.423.081.06

997.423.579.00 is the same as 997.423.081.06?
 

Last edited by NWturbo; 03-09-2019 at 05:00 PM.
  #2  
Old 03-09-2019, 11:05 AM
cannga's Avatar
Registered User
Join Date: Dec 2006
Location: Palos Verdes
Posts: 3,087
Rep Power: 247
cannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond repute
Hi got your PM. I am no expert in this matter but the spring used with my BBI kit (installed by BBI itself) is part number 997.423.081.06. https://www.6speedonline.com/forums/...bbi-slave.html

I never saw the spring personally, but IIRC this was what appeared on the actual invoice.

If no one could confirm either way for you, maybe call BBI and ask?
 

Last edited by cannga; 03-09-2019 at 11:10 AM.
  #3  
Old 03-09-2019, 11:18 AM
Registered User
Join Date: Nov 2018
Location: Tennessee
Age: 71
Posts: 33
Rep Power: 2
lflouie is on a distinguished road
Bbi

Also interested in the answer.
 
  #4  
Old 03-09-2019, 11:22 AM
Registered User
Thread Starter
Join Date: Jan 2004
Posts: 390
Rep Power: 58
NWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond repute
Hi Cannga, thanks for the response. It was your posts/experience that led me to look for 997.423.081.06

But in searching for it, on the ECS site, they list this exact part number but the picture of the part itself shows the number 997.423.579.00 on it. (The exact same part they sent in the kit)

I imagine BBI would not send a stock 997 Clutch Pedal Spring. I just don't want to buy the exact same part they already sent me.

I will call them up and ask.

Overall, I imagine it's a worthwhile upgrade
 

Last edited by NWturbo; 03-09-2019 at 05:02 PM.
  #5  
Old 03-09-2019, 12:36 PM
Registered User
Join Date: Jan 2016
Location: Campbell River,BC
Age: 66
Posts: 295
Rep Power: 30
bushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant future
GT3 spring

Originally Posted by NWturbo View Post
Hi, hoping someone can help me with the BBI Slave Kit. I just received it, and in addition to the unit itself, I also received what
I think is the Clutch Helper Spring.

I've researched the forum, and found out that many people install a GT3 Helper Spring so the pedal is not so stiff. GT3 Helper Spring 997-423-081-06.

The helper spring that is included with the kit has the part numbers 997.423.579.00. I've tried searching this part number but nothing turns up?

I did find that ECS Tuning sells the GT3 Helper Spring but the picture of the GT3 helper spring on their site has the same part number 997.423.579.00 of what I was sent. But on their site, they list the part number as 997-423-081-06.

https://www.ecstuning.com/b-genuine-...u/99742308106/

I'm assuming that the helper spring included with the BBI kit is actually the same GT3 Helper Spring, and that Porsche has just put their part number on the OEM suppliers part which has their own number?

Anyways, hoping someone can chime in. Thanks in advance!

Is this the GT3 Helper Spring? 997.423.081.06

997.423.579.00 is the same as 997.423.081.06?
Have a BBI slave & a SRM master waiting installation. Ordered a GT3 helper spring to complete the update. Number on spring housing is: 997 423 579 00

 
  #6  
Old 03-09-2019, 01:56 PM
Registered User
Thread Starter
Join Date: Jan 2004
Posts: 390
Rep Power: 58
NWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond repute
When you ordered your BBI kit, it did not come with a new Clutch Pedal Spring 997.423.579.00?

So I guess I lucked out and they gave me one for free???
 

Last edited by NWturbo; 03-09-2019 at 06:12 PM.
  #7  
Old 03-09-2019, 02:37 PM
cannga's Avatar
Registered User
Join Date: Dec 2006
Location: Palos Verdes
Posts: 3,087
Rep Power: 247
cannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond reputecannga has a reputation beyond repute
Originally Posted by NWturbo View Post
When you ordered your BBI kit, it did not come with a new Helper Spring 997.423.570.00?

So I guess I lucked out and they gave me one for free???
Mine did NOT come with the GT3 clutch pedal spring. They probably know you're a nice guy! Have fun with the new toy.

Remember also from now on you need to use DOT 4 fluid. I actually put a label on the cap. If you use the stock fluid, it would melt rubber component in the BBI unit. From BBI: OEM PENTOSIN FLUID MUST BE FULLY FLUSHED OUT AND REPLACED WITH DOT4 BRAKE FLUID. SEALS WILL FAIL IF THIS PROCEDURE IS NOT COMPLETED

BTW please allow a little nit picking here (for others reading this): "Helper spring" usually refers to the smaller spring of a coilover suspension system such as in my beloved Bilstein coilovers (to prevent noise etc. and has no function otherwise, hence "helper."). This spring we're talking about is simply the clutch pedal spring of every 911.
 

Last edited by cannga; 03-09-2019 at 02:40 PM.
  #8  
Old 03-09-2019, 04:13 PM
Registered User
Join Date: Jan 2016
Location: Campbell River,BC
Age: 66
Posts: 295
Rep Power: 30
bushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant future
Originally Posted by NWturbo View Post
When you ordered your BBI kit, it did not come with a new Helper Spring 997.423.570.00?

So I guess I lucked out and they gave me one for free???
Bought the BBI slave from a board member who purchased new and did not install. Bought the master from SRM and the spring from ECS
 
  #9  
Old 03-09-2019, 04:18 PM
Registered User
Thread Starter
Join Date: Jan 2004
Posts: 390
Rep Power: 58
NWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond reputeNWturbo has a reputation beyond repute
Thanks guys for all the replies and info. I guess I got really confused when BBI sent me a new Pedal Spring along with their conversion piece.

I revised my posts about the "Helper" spring to "Clutch Pedal" where I could Thanks Cannga and Bushrat!
 

Last edited by NWturbo; 03-09-2019 at 06:14 PM.
  #10  
Old 03-09-2019, 08:25 PM
Registered User
Join Date: Jun 2004
Location: San Diego, CA
Age: 38
Posts: 128
Rep Power: 20
jakethunder
You may want to try the unit without the helper spring. I have the BBI kit and love the stiff clutch. It didnít take more than a couple drives to get used to it. I have an extra spring I picked up, but decided against using it since itís not too bad.
 
  #11  
Old 03-09-2019, 08:53 PM
Registered User
Join Date: Jan 2016
Location: Campbell River,BC
Age: 66
Posts: 295
Rep Power: 30
bushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant future
Originally Posted by jakethunder View Post
You may want to try the unit without the helper spring. I have the BBI kit and love the stiff clutch. It didnít take more than a couple drives to get used to it. I have an extra spring I picked up, but decided against using it since itís not too bad.
Will give it a go before installing the new spring. Better to have it and not need it rather than to need it and not have it. :-) Thanks for the input.
 
  #12  
Old 03-09-2019, 10:35 PM
Registered User
Join Date: Oct 2012
Location: Orange County
Posts: 447
Rep Power: 130
TypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond repute
No harm in trying without the stiffer clutch spring, but trust me, you will end up installing it. You will still have a very firm and linear clutch pedal, but with the GT3 spring your leg won't quiver when you have the clutch pedal pushed to the floor .

Also, take a look at your clutch engagement point post-install....you might benefit from installing a clutch stop. In my case the GT3 spring and clutch stop made life much better.
 
  #13  
Old 03-10-2019, 12:31 AM
Registered User
Join Date: Jan 2016
Location: Campbell River,BC
Age: 66
Posts: 295
Rep Power: 30
bushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant future
Originally Posted by TypeRx View Post
No harm in trying without the stiffer clutch spring, but trust me, you will end up installing it. You will still have a very firm and linear clutch pedal, but with the GT3 spring your leg won't quiver when you have the clutch pedal pushed to the floor .

Also, take a look at your clutch engagement point post-install....you might benefit from installing a clutch stop. In my case the GT3 spring and clutch stop made life much better.
I take it you mean a stop to limit the clutch pedal travel ?
 
  #14  
Old 03-10-2019, 09:22 PM
Registered User
Join Date: Oct 2012
Location: Orange County
Posts: 447
Rep Power: 130
TypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond reputeTypeRx has a reputation beyond repute
Originally Posted by bushrat View Post
I take it you mean a stop to limit the clutch pedal travel ?
Yup, but I should also note I have a "Sachs 2.5" clutch/pp kit, so that changes engagement point and pedal travel. With this setup, I can further reduce clutch pedal travel by like 50%. Combined with the stiff clutch slave conversion (I have GT2, not BBi), the shorter travel, GT3 clutch spring, and better modulation are a winning combo as long as you are okay with increased pedal pressure.
 
  #15  
Old 03-11-2019, 12:20 AM
Registered User
Join Date: Jan 2016
Location: Campbell River,BC
Age: 66
Posts: 295
Rep Power: 30
bushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant futurebushrat has a brilliant future
Originally Posted by TypeRx View Post
Yup, but I should also note I have a "Sachs 2.5" clutch/pp kit, so that changes engagement point and pedal travel. With this setup, I can further reduce clutch pedal travel by like 50%. Combined with the stiff clutch slave conversion (I have GT2, not BBi), the shorter travel, GT3 clutch spring, and better modulation are a winning combo as long as you are okay with increased pedal pressure.
Clutch assy is out of a GT3. Will definitely adjust the setup to my liking. Really looking forward to a clutch with some resistance. Been driving manual transmission vehicles since 1970, can't recall driving one that I dislike as much as the stock setup in this car.
 

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Help: BBI Clutch Slave Conversion Kit


Join 6SpeedOnline
Visit our Sponsors

Contact Us About Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.