Notices
964 Forum 1989-1994
Sponsored by:
Sponsored by:

serpentine belt setup

Thread Tools
 
Search this Thread
 
Old Jun 2, 2020 | 08:07 PM
  #1  
wallra's Avatar
wallra
Thread Starter
Pro
15 Year Member
 
Joined: Feb 2009
Posts: 725
Likes: 60
Default serpentine belt setup

how many guys with stock cranks in their 964 are running clewetts serpentine belt setup? and how long have you run this setup? I already read about the down side.
Reply
Old Jun 2, 2020 | 10:40 PM
  #2  
Goughary's Avatar
Goughary
Rennlist Member
15 Year Member
 
Joined: Oct 2010
Posts: 4,934
Likes: 483
From: fairfield, CT
Default

Bob - you realize this is code for "how long can i go before i break my crank"...

Reply
Old Jun 3, 2020 | 08:06 AM
  #3  
wallra's Avatar
wallra
Thread Starter
Pro
15 Year Member
 
Joined: Feb 2009
Posts: 725
Likes: 60
Default

this what I wanted to find out If any one using it broke the crank. Richard sells an lot of them so people are doing it. I see 964.4l has one from ATI super damper from Jeff at Rothsport but he has a gt3 crank. I asked Jeff but he don't make one, I emailed ATI and they never made one for the 964. be nice to have a serpentine belt setup. I know Foxman just did it but not to much time on his.
Reply
Old Jun 3, 2020 | 02:58 PM
  #4  
wallra's Avatar
wallra
Thread Starter
Pro
15 Year Member
 
Joined: Feb 2009
Posts: 725
Likes: 60
Default

I came a cross this https://rennlist.com/forums/964-foru...-dampener.html
Reply
Old Jun 3, 2020 | 09:00 PM
  #5  
spartansix's Avatar
spartansix
Rennlist Member
10 Year Member
 
Joined: Sep 2015
Posts: 1,926
Likes: 862
From: Fairfield County, CT
Default

There are other people that would buy them if you got ATI to make a 964 damper... maybe you could entice them with the idea of a group buy.
Reply
Old Jun 3, 2020 | 09:19 PM
  #6  
wallra's Avatar
wallra
Thread Starter
Pro
15 Year Member
 
Joined: Feb 2009
Posts: 725
Likes: 60
Default

I was thinking about asking that. I think it would be easy for them to make one that could bolt to the crank adapter. I was thinking about buying the adapter and sending it to them to look at. also If you look at our stock pulley you can see the rubber is only under the ac pulley. that's almost not like a true harmonic balancer.
Reply
Old Jun 3, 2020 | 09:32 PM
  #7  
wallra's Avatar
wallra
Thread Starter
Pro
15 Year Member
 
Joined: Feb 2009
Posts: 725
Likes: 60
Default

just sent them an email with the picture of the hub and said If I could get 10 people to buy them would they make them. It almost looks like one they make for GM could bolt to our hub. If you don't ask you'll never know.
Reply
Old Jun 3, 2020 | 09:36 PM
  #8  
RicardoD's Avatar
RicardoD
Rennlist Member
20 Year Member
 
Joined: Oct 2003
Posts: 1,861
Likes: 225
From: Bay Area, CA
Default

Can someone explain the problem you are trying to solve here?
Reply
Rennlist Stories

The Best Porsche Posts for Porsche Enthusiasts

story-0

Talos Takes Your 991 Porsche 911 GT3 to the Next Level for a Cool $1.13 Million

 Verdad Gallardo
story-1

9 Vehicles Porsche Helped Engineer that Aren't Porsches

 Verdad Gallardo
story-2

9 Features and Characteristics That Only Porsche People Understand

 Verdad Gallardo
story-3

I've Written 500 Rennlist Articles: Here's How Porsche Has Changed Along the Way

 Joe Kucinski
story-4

10 Most Unnecessary Porsches Ever Built (And Why We Love Them)

 Verdad Gallardo
story-5

Porsche 911 GT3 S/C vs 718 Spyder RS: 10 Categories, One Winner

 Joe Kucinski
story-6

This Builder Is Turning Heads With Its Slantnose 911 Creation

 Verdad Gallardo
story-7

Porsche 911 GT3 Artisan Edition Pays Homage to Japanese Culture

 Verdad Gallardo
story-8

Porsche Reveals Coupe Variant of the Electric Cayenne With a Fresh Look

 Verdad Gallardo
story-9

10 Porsche Colors That Have More Personality Than Most People

 Verdad Gallardo
Old Jun 3, 2020 | 10:25 PM
  #9  
Goughary's Avatar
Goughary
Rennlist Member
15 Year Member
 
Joined: Oct 2010
Posts: 4,934
Likes: 483
From: fairfield, CT
Default

Bob- I'll be in as long as i don't lose the ac pulley. The clewett belt is great. We used it on the Alabama car and i like the way it turned out.
Reply
Old Jun 3, 2020 | 11:56 PM
  #10  
Peteinjp's Avatar
Peteinjp
Rennlist Member
5 Year Member
 
Joined: Jul 2017
Posts: 1,854
Likes: 364
Default

The contacted Clewett about this several weeks ago and at that time I think he was not aware of the potential sales to be had. 2 issues I see with the project are A. you have to have a good condition balancer to start with (Mine is showing its age a bit) and 2 you should balance the assembly before installation. So not exactly plug and play but not impossible either.

Personally I am looking to have someone produce an ATI unit for the 964 crank. I will post more info if the project goes forward.

Pete
Reply
Old Jun 4, 2020 | 12:02 PM
  #11  
wallra's Avatar
wallra
Thread Starter
Pro
15 Year Member
 
Joined: Feb 2009
Posts: 725
Likes: 60
Default

Rob on the alabama car did the use clewett lower pulley? I have clewetts setup just waiting to go on.
Reply
Old Jun 4, 2020 | 12:26 PM
  #12  
spartansix's Avatar
spartansix
Rennlist Member
10 Year Member
 
Joined: Sep 2015
Posts: 1,926
Likes: 862
From: Fairfield County, CT
Default

Alabama car has a built-from-scratch 3.9 in it... no comparison to putting a clewett pulley on a stock crank.
Reply
Old Jun 4, 2020 | 12:28 PM
  #13  
Goughary's Avatar
Goughary
Rennlist Member
15 Year Member
 
Joined: Oct 2010
Posts: 4,934
Likes: 483
From: fairfield, CT
Default

Yes- they rejournaled and balanced and blueprinted the 964 crank on the Alabama car- so Peter figured they would be ok without the harmonic balancer since the car won't be a track car and won't see sustained high rpm driving.
Reply
Old Jun 4, 2020 | 01:17 PM
  #14  
wallra's Avatar
wallra
Thread Starter
Pro
15 Year Member
 
Joined: Feb 2009
Posts: 725
Likes: 60
Default

OK here is the deal they are willing to make them for us but with every thing going on they are backed up with work. They will make 10 of them but they will only deal with me. that means I buy all 10. price is 750.00 to 800.00 each. WHAT do you guys think? If I did this I would have to be paid up front. I did not ask about the ac pulley but I think they all should be made with it. Their is your answer.
Reply
Old Jun 4, 2020 | 04:47 PM
  #15  
JasonAndreas's Avatar
JasonAndreas
Technical Guru
Rennlist Member

 
Joined: May 2002
Posts: 8,138
Likes: 122
From: USVI
Default

Any idea what the total weight of the ATI unit would/might be?
Reply



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

story-0
Talos Takes Your 991 Porsche 911 GT3 to the Next Level for a Cool $1.13 Million

Slideshow: Talos Vehicles has transformed the Porsche 911 GT3 RS into a carbon-bodied, race-inspired machine that costs well over $1 million before the donor car is even included.

By Verdad Gallardo | 2026-05-19 13:39:04


VIEW MORE
story-1
9 Vehicles Porsche Helped Engineer that Aren't Porsches

Slideshow: Long before engineering consulting became trendy, Porsche was quietly helping other automakers build everything from supercars to economy hatchbacks.

By Verdad Gallardo | 2026-05-15 12:44:44


VIEW MORE
story-2
9 Features and Characteristics That Only Porsche People Understand

Slideshow: Some brands build cars. Porsche builds traditions, obsessions, and a few habits that stopped making sense decades ago but somehow became part of the charm.

By Verdad Gallardo | 2026-05-13 18:46:13


VIEW MORE
story-3
I've Written 500 Rennlist Articles: Here's How Porsche Has Changed Along the Way

Slideshow: Six years and 500 Rennlist articles later, these are the biggest changes at Porsche.

By Joe Kucinski | 2026-05-11 09:52:55


VIEW MORE
story-4
10 Most Unnecessary Porsches Ever Built (And Why We Love Them)

Slideshow: Some Porsches exist for very specific reasons-others feel like they were built just to see if anyone would notice.

By Verdad Gallardo | 2026-05-06 18:00:32


VIEW MORE
story-5
Porsche 911 GT3 S/C vs 718 Spyder RS: 10 Categories, One Winner

Slideshow: Choosing between the 911 GT3 S/C and 718 Spyder RS in 10 key categories to determine one surprising winner.

By Joe Kucinski | 2026-05-05 12:51:46


VIEW MORE
story-6
This Builder Is Turning Heads With Its Slantnose 911 Creation

Slideshow: A small Polish tuner has reimagined the Porsche 911 Slantnose for the modern era, blending 1980s nostalgia with widebody tuning culture and serious performance upgrades.

By Verdad Gallardo | 2026-05-01 10:49:43


VIEW MORE
story-7
Porsche 911 GT3 Artisan Edition Pays Homage to Japanese Culture

Slideshow: Porsche has created a Japan-only 911 GT3 Artisan Edition that blends track-ready hardware with design cues inspired by traditional Japanese craftsmanship.

By Verdad Gallardo | 2026-04-28 19:37:40


VIEW MORE
story-8
Porsche Reveals Coupe Variant of the Electric Cayenne With a Fresh Look

Slideshow: Porsche's latest electric Cayenne Coupe blends dramatic styling with supercar acceleration, turning the brand's midsize SUV into a 1,139-horsepower flagship.

By Verdad Gallardo | 2026-04-27 19:39:30


VIEW MORE
story-9
10 Porsche Colors That Have More Personality Than Most People

Slideshow: Porsche's wildest paint colors aren't just shades-they're full-blown personalities on four wheels.

By Verdad Gallardo | 2026-04-27 19:38:13


VIEW MORE