Notices
W211 AMG Discuss the W211 AMG's such as the E55 and the E63
Sponsored by:
Sponsored by:

*** 80mm AMG Throttle Body ***

 
Old 06-30-2006, 06:53 AM
  #101  
MBWorld Fanatic!
 
Join Date: Jun 2004
Location: Moscow, Russia
Posts: 2,596
Likes: 0
Liked 0 Times in 0 Posts
E55K
Originally Posted by vrus
I am working on 2 parallels right now.. I ordered a new stock supercharger inlet which I received. The machine shop is working on mating the 80mm AMG TB to the inlet. It should be done by Wedn next week (they are busy and this is the long weekend).

At the same time I am working on the original inlet I bought (the one without the bypass in it -- which is a complete bolt-up to the 80mm AMG TB) to see if we can get the electronics for the bypass valve to be circumvented. That bypass valve on its own is good for at least 20hp - 30hp based on some talks I've had with a few different people.

If we can come up with a way to stop the ECU from bleeding off boost we would see a fairly significant increase in power right through the rev range. My programmer in Germany has been looking for the code in the ECU that controls this part but he cannot find it (Powerchip, Kleemann, and everyone else hasnt been able to figure it out either).
You should contact Wetterauer they know how get HP out of Bypass valve...They do in their last stage 3...Chip, pullies and bypass valves 590 HP !!!
E55 RUSS is offline  
Old 07-01-2006, 11:11 AM
  #102  
Member
 
Join Date: Sep 2005
Location: Cary, IL
Posts: 224
Likes: 0
Liked 0 Times in 0 Posts
2003 CL55 Kompressor Horizon Blue Metallic
Originally Posted by vrus

At the same time I am working on the original inlet I bought (the one without the bypass in it -- which is a complete bolt-up to the 80mm AMG TB) to see if we can get the electronics for the bypass valve to be circumvented. That bypass valve on its own is good for at least 20hp - 30hp based on some talks I've had with a few different people.

If we can come up with a way to stop the ECU from bleeding off boost we would see a fairly significant increase in power right through the rev range. My programmer in Germany has been looking for the code in the ECU that controls this part but he cannot find it (Powerchip, Kleemann, and everyone else hasnt been able to figure it out either).
I went back and reviewed the old posts about the bypass valve and some of the parts drawings Vadim provided.

I'm wondering if the intent of the bypass valve is to actually improve throttle response and performance during times the SC is not engaged (??). Essentially, air can flow from the TB straight through to the engine when the valve is open ??? And, it provides a modulation (similar to the wastegate actuators on Audi's) to smooth the boost transition. I believe this modulation activity can be clipped by adjusting the specified engine load parameter in Audis.

My guess is that if the bypass valve were closed when the SC is not engaged, the ECU will be forced to engage the SC sooner and at lower RPM's in normal driving. When it is closed and the SC is not engaged the airflow is impeded, forcing the driver to use more throttle to get the car rolling. This would be great news for me, I've been trying (with moderate success) to find ways to get the SC to engage "sooner" and smoother.

Maybe the bypass valve is also a tool we could use to go to a solid pulley and ditch the SC clutch?

If I am even partially on the right track with the above, I can foresee that there are performance improvements that can be gained with the bypass valve. Also, it makes sense to me that the bypass valve activity is independent of boost, if it was intended to purely bleed off boost I would think the guys that add pulleys without ECU updates would not be seeing significant improvements.

Last edited by mclarenm8d; 07-01-2006 at 11:43 AM.
mclarenm8d is offline  
Old 07-01-2006, 01:18 PM
  #103  
Banned
Thread Starter
 
Join Date: May 2004
Location: Richmond Hill, Ontario
Posts: 3,797
Likes: 0
Liked 1 Time in 1 Post
2003 E55 AMG
I sent them an email.. We'll see what they say.. I hope you are right. Thanks for the tip!

Originally Posted by M5 RUS
You should contact Wetterauer they know how get HP out of Bypass valve...They do in their last stage 3...Chip, pullies and bypass valves 590 HP !!!

I went back and reviewed the old posts about the bypass valve and some of the parts drawings Vadim provided.

I'm wondering if the intent of the bypass valve is to actually improve throttle response and performance during times the SC is not engaged (??). Essentially, air can flow from the TB straight through to the engine when the valve is open ??? And, it provides a modulation (similar to the wastegate actuators on Audi's) to smooth the boost transition. I believe this modulation activity can be clipped by adjusting the specified engine load parameter in Audis.

My guess is that if the bypass valve were closed when the SC is not engaged, the ECU will be forced to engage the SC sooner and at lower RPM's in normal driving. When it is closed and the SC is not engaged the airflow is impeded, forcing the driver to use more throttle to get the car rolling. This would be great news for me, I've been trying (with moderate success) to find ways to get the SC to engage "sooner" and smoother.

You make a very good point... I actually had similar thinking... I know the bypass valve helps with airflow when the SC is disengaged, BUT... Think about this --- What did they do to control airflow on the early 2003 SL55 that I got this 80mm TB from? It had NO bypass valve (as you can see from the photo of the supercharger inlet) on it. I know there is a way to make the car work without the darn bypass because the early model cars were missing it.

Damn.. I wish I had a Euro SL55 around me somewhere that I could partially take apart.. I would love to know how things are wired and put together in the engine bay... It would help greatly...

Originally Posted by mclarenm8d
Maybe the bypass valve is also a tool we could use to go to a solid pulley and ditch the SC clutch?

If I am even partially on the right track with the above, I can foresee that there are performance improvements that can be gained with the bypass valve. Also, it makes sense to me that the bypass valve activity is independent of boost, if it was intended to purely bleed off boost I would think the guys that add pulleys without ECU updates would not be seeing significant improvements.
vrus is offline  
Old 07-01-2006, 01:23 PM
  #104  
Banned
Thread Starter
 
Join Date: May 2004
Location: Richmond Hill, Ontario
Posts: 3,797
Likes: 0
Liked 1 Time in 1 Post
2003 E55 AMG
Originally Posted by stevebez
Any chance its mechanically triggered then ?
No. I traced a wiring harness that runs from the bypass valve up to the ECU box on the driver's side. The wire is a duplicate of the wire that is on the throttle body and even the pinouts are the same. In fact, the only way to distinguish the 2 cables is that the TB cable has a blue dot/tape to identify it so you don't mix them up.

It is definitely ECU controlled.
vrus is offline  
Old 07-01-2006, 04:22 PM
  #105  
Super Member
 
Join Date: Aug 2005
Posts: 665
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by vrus
You make a very good point... I actually had similar thinking... I know the bypass valve helps with airflow when the SC is disengaged, BUT... Think about this --- What did they do to control airflow on the early 2003 SL55 that I got this 80mm TB from? It had NO bypass valve (as you can see from the photo of the supercharger inlet) on it. I know there is a way to make the car work without the darn bypass because the early model cars were missing it.
I think the answer to your question is the airflow on the earlier cars was forced to go through the S/C. MB probably added the bypass valve to make the throttle response more linear, and as a means to bleed boost when needed. If this is the case, a good programmer could compare before/after valve ECUs and see where code has been added.


Originally Posted by vrus
I traced a wiring harness that runs from the bypass valve up to the ECU box on the driver's side. The wire is a duplicate of the wire that is on the throttle body and even the pinouts are the same. In fact, the only way to distinguish the 2 cables is that the TB cable has a blue dot/tape to identify it so you don't mix them up.
Wouldn't it be interesting to tap into the line that actuated the stepper motor and monitor voltage levels during all kinds of driving conditions.

If the reflash is now using this valve to limit power, the different perforrmance levels reported by various posters could be something as simple as the closed-position calibration of the valve. Since very little valve opening would be required to bleed a few pounds of boost, just a slight miscalibration could cause a lot to be bled, or almost none, depending on which side of zero the valve is actually sitting. Something to think about.

I could see a control box in your future. Something that sits between the ECU and bypass valve that passes signals during normal operation, but commands the bypass valve closed when the S/C clutch engages. Something else to think about.
Grumpy666 is offline  
Old 07-01-2006, 05:45 PM
  #106  
Member
 
Join Date: Sep 2005
Location: Cary, IL
Posts: 224
Likes: 0
Liked 0 Times in 0 Posts
2003 CL55 Kompressor Horizon Blue Metallic
Originally Posted by vrus

You make a very good point... I actually had similar thinking... I know the bypass valve helps with airflow when the SC is disengaged, BUT... Think about this --- What did they do to control airflow on the early 2003 SL55 that I got this 80mm TB from? It had NO bypass valve (as you can see from the photo of the supercharger inlet) on it. I know there is a way to make the car work without the darn bypass because the early model cars were missing it.

Damn.. I wish I had a Euro SL55 around me somewhere that I could partially take apart.. I would love to know how things are wired and put together in the engine bay... It would help greatly...
My theory (and since I've never driven a Euro SL55, it's just a theory :-) ) is that the early Euro SL55's "suffered" from complaints of poor throttle response at idle that turned to hyperactive response once the SC engaged and the intake system got a good flow going. Maybe the 80 mm TB helped alleviate the lack of a bypass valve.

Does it appear that the valve is designed to open without voltage applied or to be closed? I could almost get the courage up to see if my car will not CEL with the bypass valve harness unplugged.
mclarenm8d is offline  
Old 07-06-2006, 07:40 PM
  #107  
Banned
Thread Starter
 
Join Date: May 2004
Location: Richmond Hill, Ontario
Posts: 3,797
Likes: 0
Liked 1 Time in 1 Post
2003 E55 AMG
You bring up some very good points. I wish I had someone's car that I could take apart to find the answers..

For now, this route cannot be followed without more information.

Originally Posted by mclarenm8d
My theory (and since I've never driven a Euro SL55, it's just a theory :-) ) is that the early Euro SL55's "suffered" from complaints of poor throttle response at idle that turned to hyperactive response once the SC engaged and the intake system got a good flow going. Maybe the 80 mm TB helped alleviate the lack of a bypass valve.

Does it appear that the valve is designed to open without voltage applied or to be closed? I could almost get the courage up to see if my car will not CEL with the bypass valve harness unplugged.
vrus is offline  
Old 07-06-2006, 07:46 PM
  #108  
Banned
Thread Starter
 
Join Date: May 2004
Location: Richmond Hill, Ontario
Posts: 3,797
Likes: 0
Liked 1 Time in 1 Post
2003 E55 AMG
As you know my last action was to order another stock supercharger inlet and have it machined to accept the 80mm AMG TB.. For now, until I find a better way to do it, this is how it will be installed.

I received the part back from the machine shop today. They did a great job on the welds and the machining. They basically attached a 3/8 aluminum plate to the mouth of the SC inlet and bored it out to 80mm to fit perfectly with the TB.

Scheduled to go in on Tuesday for the install... Because the install was Tuesday I decided to get a baseline dyno pull done today.. Numbers are lower than before but are attributed to 3 factors; 1) I have the stock exhaust back on the car now instead of the 3" race exhaust. 2) I am not sure if the recall issues are still plaguing me or not. 3) My A/F is still PIG RICH at the top end so I am not making peak power.

New baseline numbers were 435rwhp, 545rwtq. Right now I am down 37rwhp, 2rwtq. I did this so I can retest on the dyno with the 80mm TB and see what the differences are. Below is a pic of the new supercharger inlet.

vrus is offline  
Old 07-06-2006, 08:27 PM
  #109  
Banned
Thread Starter
 
Join Date: May 2004
Location: Richmond Hill, Ontario
Posts: 3,797
Likes: 0
Liked 1 Time in 1 Post
2003 E55 AMG
Grumpy,

Great idea about the control box. Once these current issues are dealt with and my plate is clear this is one of the next issues I want to address.


Originally Posted by Grumpy666
I think the answer to your question is the airflow on the earlier cars was forced to go through the S/C. MB probably added the bypass valve to make the throttle response more linear, and as a means to bleed boost when needed. If this is the case, a good programmer could compare before/after valve ECUs and see where code has been added.


Wouldn't it be interesting to tap into the line that actuated the stepper motor and monitor voltage levels during all kinds of driving conditions.

If the reflash is now using this valve to limit power, the different perforrmance levels reported by various posters could be something as simple as the closed-position calibration of the valve. Since very little valve opening would be required to bleed a few pounds of boost, just a slight miscalibration could cause a lot to be bled, or almost none, depending on which side of zero the valve is actually sitting. Something to think about.

I could see a control box in your future. Something that sits between the ECU and bypass valve that passes signals during normal operation, but commands the bypass valve closed when the S/C clutch engages. Something else to think about.
vrus is offline  
Old 07-07-2006, 11:50 AM
  #110  
MBWorld Fanatic!
 
stevebez's Avatar
 
Join Date: Jul 2005
Location: London, UK
Posts: 3,004
Likes: 0
Liked 2 Times in 2 Posts
No longer stock '06 E55, A3 3.2 Quattro, LRD4 HSE, R107 280SL
Vrus - is it just an optical illusion or is the inlet housing more restricted (than 80mm) inside ??
stevebez is offline  
Old 07-07-2006, 04:14 PM
  #111  
Super Member
 
Finny's Avatar
 
Join Date: May 2006
Location: Australia
Posts: 523
Likes: 0
Liked 0 Times in 0 Posts
03 E55 AMG
Originally Posted by vrus
My A/F is still PIG RICH at the top end so I am not making peak power.
Would this be roughly after 3000 rpm?...This happened to me as well... Was your fuel economy **** too?

Your pulley is slipping...thats it. After putting extra tension on via the crappy mod I did, the air fuel richness was pushed up the scale to around 4700 rpm after that, rich again... still slipping.

Thats why I need that new tensioner with the added extra one inch foot print.

Any news?
Finny is offline  
Old 07-07-2006, 04:18 PM
  #112  
Super Member
 
Finny's Avatar
 
Join Date: May 2006
Location: Australia
Posts: 523
Likes: 0
Liked 0 Times in 0 Posts
03 E55 AMG
Originally Posted by stevebez
Vrus - is it just an optical illusion or is the inlet housing more restricted (than 80mm) inside ??
By-pass hole...
Finny is offline  
Old 07-07-2006, 04:26 PM
  #113  
Banned
Thread Starter
 
Join Date: May 2004
Location: Richmond Hill, Ontario
Posts: 3,797
Likes: 0
Liked 1 Time in 1 Post
2003 E55 AMG
Yup.. Optical illusion.. It is 80mm opening.. They smoothed out the supercharger inlet to port match it to the adapter plate. It is a nice job actually.


Originally Posted by stevebez
Vrus - is it just an optical illusion or is the inlet housing more restricted (than 80mm) inside ??
Mine is pig rich just after 4,000RPM.. My programmer is probably cursing me cause he keeps telling me the tune is correct but yet my car dives down to below 10:1 after 4,000RPM so I can never make the peak power on the dyno.

I have the new pullies from Evosport. They arrived on Monday but I didnt get a chance to take a pic.. I will snap a pic later and post it here.

Originally Posted by finny
Would this be roughly after 3000 rpm?...This happened to me as well... Was your fuel economy **** too?

Your pulley is slipping...thats it. After putting extra tension on via the crappy mod I did, the air fuel richness was pushed up the scale to around 4700 rpm after that, rich again... still slipping.

Thats why I need that new tensioner with the added extra one inch foot print.

Any news?
vrus is offline  
Old 07-07-2006, 04:46 PM
  #114  
Super Member
 
Finny's Avatar
 
Join Date: May 2006
Location: Australia
Posts: 523
Likes: 0
Liked 0 Times in 0 Posts
03 E55 AMG
Angry Slip Slippin away

Originally Posted by vrus
Mine is pig rich just after 4,000RPM.. My programmer is probably cursing me cause he keeps telling me the tune is correct but yet my car dives down to below 10:1 after 4,000RPM so I can never make the peak power on the dyno.
Same problem.... He is right, the program is fine, Same problem with my tuner as well... I drove him nuts..ha... I eventually conceded that he was correct.

Originally Posted by vrus
I have the new pulleys from Evosport. They arrived on Monday but I didnt get a chance to take a pic.. I will snap a pic later and post it here.
I'm assuming that the above pulleys are already installed with this problem?

Last edited by Finny; 07-07-2006 at 04:48 PM.
Finny is offline  
Old 07-07-2006, 08:09 PM
  #115  
Banned
Thread Starter
 
Join Date: May 2004
Location: Richmond Hill, Ontario
Posts: 3,797
Likes: 0
Liked 1 Time in 1 Post
2003 E55 AMG
No. The new pullies are not installed yet.

I inspected them closely a few minutes ago but didnt bother to take pictures.. They are just 3 pullies that wont mean much to you unless you have the Evosport pulley kit.

They supplied me with a new water pump underdrive pulley, a new idler pulley that gets installed between the supercharger and the crankshaft to increase the overall belt length to 52.5". (Gates #K080525), and a new left idler pulley assembly.

This new setup (based on the install pics they sent me) will give better belt wrap.. Vic55 already has this new setup on his car and he is not seeing any slip at all.

I am going to try to have the dealership install these new revised pullies at the same time they do my TB.

I am trying to track down that blue part that you showed in the pic. It is a nice idea to keep the tensioner in place.. Any idea where it comes from or who makes it?

Originally Posted by Finny
Same problem.... He is right, the program is fine, Same problem with my tuner as well... I drove him nuts..ha... I eventually conceded that he was correct.

I'm assuming that the above pulleys are already installed with this problem?
vrus is offline  
Old 07-08-2006, 12:19 AM
  #116  
Super Member
 
Finny's Avatar
 
Join Date: May 2006
Location: Australia
Posts: 523
Likes: 0
Liked 0 Times in 0 Posts
03 E55 AMG
Thumbs up

Originally Posted by vrus
No. The new pullies are not installed yet.

I inspected them closely a few minutes ago but didnt bother to take pictures.. They are just 3 pullies that wont mean much to you unless you have the Evosport pulley kit.
So...you have the old set installed and have an upgraded version now... the reason for the upgrade?

Originally Posted by vrus
They supplied me with a new water pump underdrive pulley, a new idler pulley that gets installed between the supercharger and the crankshaft to increase the overall belt length to 52.5". (Gates #K080525), and a new left idler pulley assembly.
Is the idler pulley assembly the wheel only or a revised tensioner & wheel?

Originally Posted by vrus
This new setup (based on the install pics they sent me) will give better belt wrap.. Vic55 already has this new setup on his car and he is not seeing any slip at all.
Was it sliping before?

Originally Posted by vrus
I am trying to track down that blue part that you showed in the pic. It is a nice idea to keep the tensioner in place.. Any idea where it comes from or who makes it?
Nope... can anyone enlighten us?

Thanks
Finny is offline  
Old 07-11-2006, 10:26 AM
  #117  
Banned
Thread Starter
 
Join Date: May 2004
Location: Richmond Hill, Ontario
Posts: 3,797
Likes: 0
Liked 1 Time in 1 Post
2003 E55 AMG
1) I called Evosport asking to purchase a new belt because mine shredded.. Mike right away said he was going to send me new revised pullies because when he went to look at my invoice to see what Part # I needed for the belt replacement he noticed that the revision of pullies I purchased was 1 behind the current. NO COST TO ME, he shipped me a total of 3 new pullies and a new 52.5" belt. Great service from those guys over at Evosport.

2) 1 new water pump pulley, 1 new right idler pulley (it goes between the supercharger pulley and the crank pulley), 1 new tensioner pulley.. On a normal setup, the belt around the supercharger goes right to the crank.. On this setup, there is 1 extra pulley that the belt goes around before it gets to the supercharger. It creates more wrap surface for the belt and lengthens it 1.5" (51" vs 52.5").

3) I am guessing it WAS/IS slipping like crazy because my A/F goes below 10:1 after 4,000RPM.. I know Vic55 had similar issues and with this new setup, it cured the problem for him.


Originally Posted by Finny
So...you have the old set installed and have an upgraded version now... the reason for the upgrade?

Is the idler pulley assembly the wheel only or a revised tensioner & wheel?

Was it sliping before?

Nope... can anyone enlighten us?

Thanks
vrus is offline  
Old 07-11-2006, 10:29 AM
  #118  
Super Moderator
 
Vic55's Avatar
 
Join Date: Nov 2001
Location: THE Orange County, California
Posts: 11,731
Liked 590 Times in 407 Posts
2017 Audi R8 V10, 2016 AMG GTS, 2018 E63S Edition 1, 2018 Porsche GTS Cab, 2012 C63 BS
Originally Posted by vrus
1) I called Evosport asking to purchase a new belt because mine shredded.. Mike right away said he was going to send me new revised pullies because when he went to look at my invoice to see what Part # I needed for the belt replacement he noticed that the revision of pullies I purchased was 1 behind the current. NO COST TO ME, he shipped me a total of 3 new pullies and a new 52.5" belt. Great service from those guys over at Evosport.

2) 1 new water pump pulley, 1 new right idler pulley (it goes between the supercharger pulley and the crank pulley), 1 new tensioner pulley.. On a normal setup, the belt around the supercharger goes right to the crank.. On this setup, there is 1 extra pulley that the belt goes around before it gets to the supercharger. It creates more wrap surface for the belt and lengthens it 1.5" (51" vs 52.5").

3) I am guessing it WAS/IS slipping like crazy because my A/F goes below 10:1 after 4,000RPM.. I know Vic55 had similar issues and with this new setup, it cured the problem for him.
My belt was starting to shred about 6 months ago, my car went in for the some other mod and they put on the new pulley and other items. I check it once a week but no issues.
Vic55 is offline  
Old 07-11-2006, 10:30 AM
  #119  
Banned
Thread Starter
 
Join Date: May 2004
Location: Richmond Hill, Ontario
Posts: 3,797
Likes: 0
Liked 1 Time in 1 Post
2003 E55 AMG
Car is at the dealer..

They will *attempt* to get the following installed: 80mm TB, 2006 supercharger clutch pack, revised Evosport pullies. They've got the car for 2 days so it should be enough time to get it complete.

Once this is done, its back to the dyno. Hopefully the new pullies will cure the belt slip issues and I'll be able to get a reading for peak power. Also, we'll be able to test the revised airflow characteristics of the 80mmTB and enlarged supercharger inlet.

It's gonna be a tight week because on Friday, Steve (MBenzNL) will be installing TV Tuner, power trunk closer, and lighted AMG Sills.
vrus is offline  
Old 07-11-2006, 10:39 AM
  #120  
Super Member
 
Finny's Avatar
 
Join Date: May 2006
Location: Australia
Posts: 523
Likes: 0
Liked 0 Times in 0 Posts
03 E55 AMG
Question Photo

VRUS, Any chance of some photos when the job is done?

Cheers,

Finny
Finny is offline  
Old 07-11-2006, 10:42 AM
  #121  
Out Of Control!!
 
vraa's Avatar
 
Join Date: Jul 2002
Posts: 28,934
Likes: 0
Liked 2 Times in 2 Posts
Second for the photos.
I'm always anticipating the next post from vrus, his posts all come together to create an amazing story.
vraa is offline  
Old 07-11-2006, 10:51 AM
  #122  
MBWorld Fanatic!
 
stevebez's Avatar
 
Join Date: Jul 2005
Location: London, UK
Posts: 3,004
Likes: 0
Liked 2 Times in 2 Posts
No longer stock '06 E55, A3 3.2 Quattro, LRD4 HSE, R107 280SL


stevebez is offline  
Old 07-11-2006, 01:11 PM
  #123  
Banned
Thread Starter
 
Join Date: May 2004
Location: Richmond Hill, Ontario
Posts: 3,797
Likes: 0
Liked 1 Time in 1 Post
2003 E55 AMG
Sure.. What would you like to see? Mods that Steve is doing or mods in the engine compartment?

Originally Posted by Finny
VRUS, Any chance of some photos when the job is done?

Cheers,

Finny
Thanks Ricky! You are too kind. Which pics should I take?

Originally Posted by ricky.agrawal
Second for the photos.
I'm always anticipating the next post from vrus, his posts all come together to create an amazing story.
Steve,

Thanks! I just hope that after dragging you guys along for this rollercoaster ride with the 80mm TB project that it does what it is supposed to. I've got alot of time & money sunk into this particular project so I really hope that I can show some positive results for everyone when all is said and done.

Originally Posted by stevebez


vrus is offline  
Old 07-11-2006, 01:31 PM
  #124  
Out Of Control!!
 
vraa's Avatar
 
Join Date: Jul 2002
Posts: 28,934
Likes: 0
Liked 2 Times in 2 Posts
I'm down for any pictures, each one is worth 600 words (40% reduction = tax)
vraa is offline  
Old 07-11-2006, 02:49 PM
  #125  
Super Member
 
Finny's Avatar
 
Join Date: May 2006
Location: Australia
Posts: 523
Likes: 0
Liked 0 Times in 0 Posts
03 E55 AMG
Wink Will need mini tubs

Originally Posted by vrus
They will *attempt* to get the following installed: 80mm TB, 2006 supercharger clutch pack, revised Evosport pullies. They've got the car for 2 days so it should be enough time to get it complete.

Once this is done, its back to the dyno. Hopefully the new pullies will cure the belt slip issues and I'll be able to get a reading for peak power. Also, we'll be able to test the revised airflow characteristics of the 80mmTB and enlarged supercharger inlet.
I already know what's going to happen... your going to be extremely surprised!

Can't wait...

What's the purpose of the clutch upgrade? Sound or Slip?

Also, a shot of the revised pulley setup would be nice when you get 5.

Cheers...
Finny is offline  

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 2 votes, 5.00 average.

Quick Reply: *** 80mm AMG Throttle Body ***


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.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: