Notices
993 Turbo Forum 1995-1998
Sponsored by:
Sponsored by:

My UMW 3.8L Twin Plug

Thread Tools
 
Search this Thread
 
Old 08-22-2008, 05:16 PM
  #1  
pstoppani
Addict
Rennlist Member
Thread Starter
 
pstoppani's Avatar
 
Join Date: May 2002
Location: Redmond, WA
Posts: 1,403
Likes: 0
Received 1 Like on 1 Post
Default My UMW 3.8L Twin Plug

One major benefit of Kevin being local, is I got a personal show-and-tell from the master himself regarding my new engine

Kevin dropped off some of my new parts for me to photograph and to explain all the magic bits he's done.

To start things off, here are some pics of one of the heads, which have been ported, welded, and upgraded to larger valves and twin plugs. They are now being machined to accept the 3.8L pistons, so that part was not done when I took the pictures. Also, you can see Kevin's ultimate flame-ring!











Old 08-22-2008, 06:16 PM
  #2  
Spartan
Three Wheelin'
 
Spartan's Avatar
 
Join Date: Oct 2007
Location: Chicago IL
Posts: 1,469
Likes: 0
Received 3 Likes on 2 Posts
Default

Very nice work. Are the larger exhaust valves sodium filled or just SS?

Please keep us updated with pics! My car will be going under the knife in Nov
Old 08-22-2008, 09:38 PM
  #3  
Kevin
Addict
Rennlist Member


Rennlist
Site Sponsor

 
Kevin's Avatar
 
Join Date: Jun 2001
Location: Northwest
Posts: 9,300
Received 305 Likes on 211 Posts
Default

The lightweight exhaust valves are high temp alloy with inconel.
Old 08-23-2008, 12:08 AM
  #4  
Tour18
Banned
 
Tour18's Avatar
 
Join Date: Sep 2003
Location: Flower Mound, Texas
Posts: 1,610
Likes: 0
Received 1 Like on 1 Post
Default

Wow! How do you comment on such beautiful work? What do you say?
Old 08-23-2008, 04:22 PM
  #5  
mkozink
Rennlist Member
 
mkozink's Avatar
 
Join Date: Feb 2006
Location: Larkspur, CO
Posts: 391
Likes: 0
Received 0 Likes on 0 Posts
Default

P- you are a lucky man

Magnificent looking parts; one expects nothing less from UMW.

I will look forward to seeing your car completed.
Old 08-25-2008, 12:19 AM
  #6  
pstoppani
Addict
Rennlist Member
Thread Starter
 
pstoppani's Avatar
 
Join Date: May 2002
Location: Redmond, WA
Posts: 1,403
Likes: 0
Received 1 Like on 1 Post
Default

Now for the engine case; can you spot the upgrades?







Old 08-25-2008, 05:50 AM
  #7  
ttAmerica RoadsterAWD
Three Wheelin'
 
ttAmerica RoadsterAWD's Avatar
 
Join Date: Jan 2005
Location: Eagle, ID
Posts: 1,428
Likes: 0
Received 3 Likes on 3 Posts
Default

4 bolt mains, windage tray, bored.....oh, wait this is not a muscle car block......

Looking good!
Old 08-25-2008, 08:42 AM
  #8  
Geoffrey
Nordschleife Master
 
Geoffrey's Avatar
 
Join Date: Dec 2001
Location: Kingston, NY
Posts: 8,305
Likes: 0
Received 12 Likes on 10 Posts
Default

109 case spigots, shufflepinning the case, boattailing the case webbing, modification for GT3 oil pump, and knowing Kevin, he probably upgraded the piston squirters to 2mm.
Old 08-25-2008, 11:51 AM
  #9  
Kevin
Addict
Rennlist Member


Rennlist
Site Sponsor

 
Kevin's Avatar
 
Join Date: Jun 2001
Location: Northwest
Posts: 9,300
Received 305 Likes on 211 Posts
Default

Geoffrey you missed one more mod (smile).. It was done to the 935 and 962 cases, and standard in all the 996TT and GT cases.
Old 08-25-2008, 02:19 PM
  #10  
pstoppani
Addict
Rennlist Member
Thread Starter
 
pstoppani's Avatar
 
Join Date: May 2002
Location: Redmond, WA
Posts: 1,403
Likes: 0
Received 1 Like on 1 Post
Default

Some more of the case:



Old 08-25-2008, 02:23 PM
  #11  
ruffy
Burning Brakes
 
ruffy's Avatar
 
Join Date: Feb 2003
Posts: 878
Likes: 0
Received 0 Likes on 0 Posts
Default

wow
best car **** yet
these must be the 'money' shots lol
Old 08-26-2008, 01:03 AM
  #12  
pstoppani
Addict
Rennlist Member
Thread Starter
 
pstoppani's Avatar
 
Join Date: May 2002
Location: Redmond, WA
Posts: 1,403
Likes: 0
Received 1 Like on 1 Post
Default

Crankshaft....



Old 08-26-2008, 01:05 AM
  #13  
DV 993tt
Instructor
 
DV 993tt's Avatar
 
Join Date: Jun 2001
Location: Taiwan
Posts: 149
Likes: 0
Received 0 Likes on 0 Posts
Default

Motec?
Old 08-26-2008, 01:31 AM
  #14  
mooty
GT3 player par excellence
Lifetime Rennlist
Member
 
mooty's Avatar
 
Join Date: Apr 2002
Location: san francisco
Posts: 43,333
Received 5,481 Likes on 2,269 Posts
Default

pete,

U R A SICK VERY SICK MAN!
Old 08-26-2008, 02:46 AM
  #15  
pstoppani
Addict
Rennlist Member
Thread Starter
 
pstoppani's Avatar
 
Join Date: May 2002
Location: Redmond, WA
Posts: 1,403
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by mooty
pete,

U R A SICK VERY SICK MAN!
Heh, heh, indeed!

PS - I'll be at Thunderhill Sept 26-28 with the Boxster; hope to see you there! I was hoping to bring the Turbo, but there is no way to have the new motor broken in at the local track before then. Will have to wait until Spring...


Quick Reply: My UMW 3.8L Twin Plug



All times are GMT -3. The time now is 11:42 AM.