Rennlist - Porsche Discussion Forums

Notices
944 Turbo and Turbo-S Forum 1982-1991
Sponsored by:
Sponsored by: Clore Automotive

My porsche 944 S2 16 valve turbo project

Thread Tools
 
Search this Thread
 
Old 07-17-2014, 05:14 PM
  #256  
turbotim3
Instructor
Thread Starter
 
turbotim3's Avatar
 
Join Date: Jan 2012
Location: Bourne, Lincs. UK
Posts: 103
Likes: 0
Received 3 Likes on 1 Post
Default
Originally Posted by Thom
Cerbera clutch I would guess? Interesting... I have to look into this.
No clearance issue at all after grinding/apdating the bellhousing then?

I have always wanted a Cerb, well before I got into 944s, would be fun to adapt this clutch setup on my car.

Edit : just seen the Tuscan mention. Is it the same clutch for both 3.6 and 4.0 engines?
No problem at all, some small amounts of machining required to clear the bolts on the clutch cover and also to except the centre push slave cylinder, but well worth it. The clutch works well, no slipping issues yet but only running the car at 12psi of boost. Have got some in car mapping to do and a boost map to sort and then we will see how it performs.

Cheers Tim
turbotim3 is offline  
Reply Like
Old 07-17-2014, 06:54 PM
  #257  
964-C2
Racer
 
964-C2's Avatar
 
Join Date: Jan 2008
Posts: 288
Received 0 Likes on 0 Posts
Default
Originally Posted by turbotim3
I ended up using the Garrett Stage 5 turbo with the T350 wheel, works very well except the back pressure is a little higher than I would have liked at high rev's.
Can I ask what you consider high backpressure (@ 12 psi boost pressure)?
964-C2 is offline  
Reply Like
Old 07-18-2014, 10:08 AM
  #258  
reno808
Rennlist Member
 
reno808's Avatar
 
Join Date: Mar 2005
Location: In the garage trying to keep boost down
Posts: 8,809
Likes: 0
Received 0 Likes on 0 Posts
Default
just awesome
reno808 is offline  
Reply Like
Old 07-18-2014, 04:51 PM
  #259  
turbotim3
Instructor
Thread Starter
 
turbotim3's Avatar
 
Join Date: Jan 2012
Location: Bourne, Lincs. UK
Posts: 103
Likes: 0
Received 3 Likes on 1 Post
Default
Originally Posted by 964-C2
Can I ask what you consider high backpressure (@ 12 psi boost pressure)?
Hi, At 12 psi boost there is no back pressure to worry about, but at 22psi at 7500 its got about 32 psi which I don't like. As its road use and not going to be there for any length of time I will see how it goes.

Tim
turbotim3 is offline  
Reply Like
Old 07-23-2014, 06:24 PM
  #260  
turbotim3
Instructor
Thread Starter
 
turbotim3's Avatar
 
Join Date: Jan 2012
Location: Bourne, Lincs. UK
Posts: 103
Likes: 0
Received 3 Likes on 1 Post
Default
Well I've finally got a smile on my face. We have been out in the car this evening doing a little in car mapping. Checking fuelling etc. and building a boost map. Running it at 1.5 bar dropping of to 1.35 were it catches the soft boost limiter at 7250rpm. Dam it feels quick. Intercooler works prefect and water temp is also very good. It does get a little heat soak when standing in traffic, temps up to 50 degrees but that soon drops when moving. I am well pleased, well worth the wait.

Cheers Tim
turbotim3 is offline  
Reply Like
Old 07-23-2014, 09:57 PM
  #261  
mikey_audiogeek
Three Wheelin'
 
mikey_audiogeek's Avatar
 
Join Date: Oct 2004
Location: Northland, New Zealand
Posts: 1,547
Received 7 Likes on 6 Posts
Default
Great work!

Cheers,
Mike
mikey_audiogeek is offline  
Reply Like
Old 07-23-2014, 10:02 PM
  #262  
refresh951
Rennlist Member
 
refresh951's Avatar
 
Join Date: Jun 2010
Location: Marietta, Georgia
Posts: 3,365
Likes: 0
Received 22 Likes on 9 Posts
Default
Cool. Are you running a dry sump? What oil are you running?
refresh951 is offline  
Reply Like
Old 07-24-2014, 12:40 AM
  #263  
gruhsy
Drifting
 
gruhsy's Avatar
 
Join Date: Dec 2009
Location: Calgary
Posts: 2,559
Received 51 Likes on 38 Posts
Default
great job
gruhsy is offline  
Reply Like
Old 07-24-2014, 03:30 AM
  #264  
Dutch944
Three Wheelin'
 
Dutch944's Avatar
 
Join Date: Jul 2011
Location: Hollandaaaa
Posts: 1,786
Likes: 0
Received 3 Likes on 3 Posts
Default
Tim, you really need to get us some video..
Dutch944 is offline  
Reply Like
Old 07-24-2014, 09:35 AM
  #265  
Diver944
Pro
 
Diver944's Avatar
 
Join Date: Nov 2001
Location: UK
Posts: 529
Received 0 Likes on 0 Posts
Default
Tim, do we need to organise a summer meet at Rutland so we can get some video for these overseas guys?
Diver944 is offline  
Reply Like
Old 07-24-2014, 06:18 PM
  #266  
blade7
Drifting
 
blade7's Avatar
 
Join Date: Dec 2007
Location: England UK
Posts: 2,250
Received 32 Likes on 26 Posts
Default
Video of parked cars in a little car park .
blade7 is offline  
Reply Like
Old 07-24-2014, 09:16 PM
  #267  
333pg333
Rennlist Member
 
333pg333's Avatar
 
Join Date: Feb 2006
Location: Australia
Posts: 18,902
Received 93 Likes on 76 Posts
Default
Would like to see video of car at speed preferably. From inside and out. ;-)
333pg333 is offline  
Reply Like
Old 07-25-2014, 11:29 AM
  #268  
blade7
Drifting
 
blade7's Avatar
 
Join Date: Dec 2007
Location: England UK
Posts: 2,250
Received 32 Likes on 26 Posts
Default
Originally Posted by refresh951
Cool. Are you running a dry sump? What oil are you running?
I don't think Tim is running a dry sump setup, what boost and revs was Duke using on his last wet sump engine ?
blade7 is offline  
Reply Like
Old 07-25-2014, 03:53 PM
  #269  
333pg333
Rennlist Member
 
333pg333's Avatar
 
Join Date: Feb 2006
Location: Australia
Posts: 18,902
Received 93 Likes on 76 Posts
Default
I think about 19psi and 7000-ish on the first 16v motor with pump fuel.
333pg333 is offline  
Reply Like
Old 07-25-2014, 04:40 PM
  #270  
blade7
Drifting
 
blade7's Avatar
 
Join Date: Dec 2007
Location: England UK
Posts: 2,250
Received 32 Likes on 26 Posts
Default
How about Sean Buchanan's S2 turbo ?
blade7 is offline  
Reply Like



Advanced Search
Quick Reply: My porsche 944 S2 16 valve turbo project


Reply Closed Thread Share
Forum Jump

All times are GMT -3. The time now is 05:46 AM.