Notices
924/931/944/951/968 Forum Porsche 924, 924S, 931, 944, 944S, 944S2, 951, and 968 discussion, how-to guides, and technical help. (1976-1995)
Sponsored by:
Sponsored by:

Side draft carbs on 944

Thread Tools
 
Search this Thread
 
Old 02-23-2016, 09:49 AM
  #1  
nkgosselin
Rennlist Member
Thread Starter
 
nkgosselin's Avatar
 
Join Date: Jan 2005
Location: 06824
Posts: 913
Received 7 Likes on 4 Posts
Default Side draft carbs on 944

I am actively look to get back into a 951 so check out pretty much every ad.

Stumbled across this gem.

Are those Mikuni? I've seen similar on a vintage racing MGB.

http://losangeles.craigslist.org/sgv/cto/5460117749.html
Old 02-23-2016, 10:22 AM
  #2  
Scott at Team Harco
Just a car guy
Rennlist Member

 
Scott at Team Harco's Avatar
 
Join Date: Jan 2002
Location: South Lyon, Michigan, Ewe Ess Eh
Posts: 9,927
Received 835 Likes on 524 Posts
Default

Those look like motorcycle carbs. They could be Mikuni - but it is hard to tell from those photos. What would your interest be in them? They certainly would not be good on a turbo engine.

Attached are images of the Mikuni (automotive) set-up I have on my Colts (Sammy in this case).
Attached Images   
Old 02-23-2016, 10:39 AM
  #3  
V2Rocket
Rainman
Rennlist Member
 
V2Rocket's Avatar
 
Join Date: Jan 2007
Location: Nashville, TN
Posts: 45,498
Received 633 Likes on 490 Posts
Default

That thing has been on sale forever...
That's a crack-pipe price.
I believe the current seller bought it from the previous owner for about $1000, the last time it was for sale...

I check craigslist alot.
Old 02-23-2016, 11:24 AM
  #4  
Scott at Team Harco
Just a car guy
Rennlist Member

 
Scott at Team Harco's Avatar
 
Join Date: Jan 2002
Location: South Lyon, Michigan, Ewe Ess Eh
Posts: 9,927
Received 835 Likes on 524 Posts
Default

Originally Posted by V2Rocket
That thing has been on sale forever...
That's a crack-pipe price.
I believe the current seller bought it from the previous owner for about $1000, the last time it was for sale...

I check craigslist alot.
That car is not worth $1000 the way it sits. I didn't even look closely the first time through. 6 cylinder engine? Really? Where are the other two cylinders?

Just register and have it smogged? That's really funny. With those carbs, if it even runs, would not likely pass emissions testing.

WTF is up with those tires? The wheels are way too big for the car and the tires are way too small for those wheels.

$5000? Sure.
Old 02-23-2016, 11:25 AM
  #5  
odonnell
Rennlist Member
 
odonnell's Avatar
 
Join Date: Nov 2012
Location: Houston TX
Posts: 4,764
Received 63 Likes on 45 Posts
Default

That must be a typo, surely he meant $500.
Old 02-23-2016, 02:58 PM
  #6  
nkgosselin
Rennlist Member
Thread Starter
 
nkgosselin's Avatar
 
Join Date: Jan 2005
Location: 06824
Posts: 913
Received 7 Likes on 4 Posts
Default

I have zero interest.

Just thought it a unique means of fueling.
Old 02-23-2016, 03:51 PM
  #7  
Scott at Team Harco
Just a car guy
Rennlist Member

 
Scott at Team Harco's Avatar
 
Join Date: Jan 2002
Location: South Lyon, Michigan, Ewe Ess Eh
Posts: 9,927
Received 835 Likes on 524 Posts
Default

Originally Posted by nkgosselin
I have zero interest.

Just thought it a unique means of fueling.
It might be if it works - which I have serious doubts. There may be a pressure regulator hiding somewhere in there. Or maybe a low pressure pump. If not, those carbs would "explode" from 50 psi of fuel.

Aren't most motorcycle carbs fed their fuel by gravity?

Unique is one word for that thing.
Old 02-23-2016, 04:18 PM
  #8  
Tiger03447
Rennlist Member
 
Tiger03447's Avatar
 
Join Date: Apr 2011
Location: Elizabethton,TN
Posts: 3,334
Received 144 Likes on 126 Posts
Default

I considered modifying an intake manifold and installing a pair of 50mm Webers omit if I couldn't get the FI setup to run. Doubt that I'll do it now,since megasquirt has shown up on the horizon.
Old 02-23-2016, 05:04 PM
  #9  
lovemyp-car
Three Wheelin'
 
lovemyp-car's Avatar
 
Join Date: Oct 2007
Location: Bowie, Maryland
Posts: 1,607
Likes: 0
Received 1 Like on 1 Post
Default

Don't think they are Side-Draft carbs anyway...they look similar to Mikuni BS33's, possibly 40mm's off a R1.

Regardless...I'm SMDH.
Old 02-23-2016, 05:14 PM
  #10  
bonus12
Three Wheelin'
 
bonus12's Avatar
 
Join Date: Jun 2010
Location: Northern California, '86 951
Posts: 1,692
Received 25 Likes on 22 Posts
Default

"I think it would be easy to finish with a new paint job."

Um, wow.
Old 02-23-2016, 06:51 PM
  #11  
jhowell371
Burning Brakes
 
jhowell371's Avatar
 
Join Date: Jul 2010
Posts: 1,092
Received 38 Likes on 31 Posts
Default

Could also be Keihns. Both are constant velocity with the slide vacuum controlled. They are a great design, no engine bogging and capable of delivering fuel injection like response and MPG. Looks like the just removed the whole setup from the motorcycle. The carbs appear to be on their factory mount to keep the linkage simple and hooked up to the runners as needed without thought to equal length. They are way too small to meet that engine's needs as the biggest 4 they could have come from is 1400cc. Now Mikunis meant for big inch stroker Harleys would do the job.
Old 02-23-2016, 07:39 PM
  #12  
KuHL 951
Hey Man
Rennlist Member

 
KuHL 951's Avatar
 
Join Date: Jul 2003
Location: Nor Cal, Seal Rock, OR
Posts: 16,509
Received 177 Likes on 105 Posts
Default

That thing would never pass smog in California with all the emissions re-routed or eliminated...it's hard enough to get a well tuned one to pass anymore. For a track car who cares but it just ain't worth it.
Old 02-24-2016, 11:05 AM
  #13  
Tiger03447
Rennlist Member
 
Tiger03447's Avatar
 
Join Date: Apr 2011
Location: Elizabethton,TN
Posts: 3,334
Received 144 Likes on 126 Posts
Default

I don't know much about Mikuni's or Keihns, but they are definitely not Webers. They might be Delortos though. You would need 2 Weber DCOEs 50 mm to feed the 2.5 and get the proper feeding. For a non-smog street machine, probably need longer intake runners to get the pressure waves right. With the proper jetting, the '50s would probably be good....IF you wanted to go that way...



Quick Reply: Side draft carbs on 944



All times are GMT -3. The time now is 12:50 AM.