1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

My 12a blowthrough build-up

Thread Tools
 
Search this Thread
 
Old 01-31-08, 03:20 PM
  #26  
Lapping = Fapping

iTrader: (13)
 
Jeff20B's Avatar
 
Join Date: Aug 2001
Location: Near Seattle
Posts: 15,725
Received 70 Likes on 64 Posts
Looks like DLIDFIS on the left and AN on the right.
Old 01-31-08, 03:59 PM
  #27  
Kim
OBEY YOUR MAZDA

Thread Starter
 
Kim's Avatar
 
Join Date: Oct 2002
Location: Denmark
Posts: 3,060
Likes: 0
Received 2 Likes on 2 Posts
Yes sir, cant wait to get this thing running.
Worst thing is that I will need to rip out the 6-port and mangled wireing harness and start all over, sigh

Thinking bout building an engine test stand for it. And all the other engines I have yet to build.
Old 01-31-08, 04:11 PM
  #28  
Lapping = Fapping

iTrader: (13)
 
Jeff20B's Avatar
 
Join Date: Aug 2001
Location: Near Seattle
Posts: 15,725
Received 70 Likes on 64 Posts
Hey, that's like me. I just need a bellhousing, starter, oil and water cooling whatevers and a 12A+13B compatible exhaust manifold+mini system.

If my 6 port doesn't work, I'll rip it out and go with a tried and true 4 port.
Old 02-03-08, 10:02 AM
  #29  
I has an emblem

iTrader: (3)
 
-xlr8planet-'s Avatar
 
Join Date: May 2003
Location: Argentina
Posts: 1,786
Likes: 0
Received 4 Likes on 4 Posts
Amazing...
you cut the oring grooves! nice work man
Old 02-28-08, 05:56 PM
  #30  
Kim
OBEY YOUR MAZDA

Thread Starter
 
Kim's Avatar
 
Join Date: Oct 2002
Location: Denmark
Posts: 3,060
Likes: 0
Received 2 Likes on 2 Posts
****, after cleaning the turbine housing I discovered a Grand Canyon like crack

What other turbos run the same flange as the S5 ones ?
Old 02-28-08, 06:34 PM
  #31  
Registered shy guy

iTrader: (1)
 
warwickben's Avatar
 
Join Date: Jul 2007
Location: tewksbury, ma
Posts: 1,436
Likes: 0
Received 0 Likes on 0 Posts
i mite be wroung but i thought the s4 was a odd ball and the s5 was a t3.
Old 02-28-08, 11:18 PM
  #32  
Registered Offender

 
djjjr42's Avatar
 
Join Date: Jul 2006
Location: Bishopville, SC
Posts: 689
Likes: 0
Received 0 Likes on 0 Posts
Nice work! Sux about the turbo...

Just curious, has anyone ever tried one of these, or is it too tall to not clear the hood?

Attached Images   
Old 02-29-08, 05:09 AM
  #33  
Registered shy guy

iTrader: (1)
 
warwickben's Avatar
 
Join Date: Jul 2007
Location: tewksbury, ma
Posts: 1,436
Likes: 0
Received 0 Likes on 0 Posts
what is that iam a noob
Old 02-29-08, 05:23 AM
  #34  
Junior Member
 
Mrak's Avatar
 
Join Date: Nov 2007
Location: Melbourne, Australia
Posts: 32
Likes: 0
Received 0 Likes on 0 Posts
Looking good, can't wait to see it in and running.

\m/
Old 02-29-08, 06:03 AM
  #35  
Junior Member
 
85rx7-guy's Avatar
 
Join Date: Feb 2008
Location: NC
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
nice......

ok so my mouth is watering......
Old 02-29-08, 06:04 AM
  #36  
Junior Member
 
85rx7-guy's Avatar
 
Join Date: Feb 2008
Location: NC
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
12a question?

where can i get one like that?
Old 02-29-08, 06:05 AM
  #37  
Junior Member
 
85rx7-guy's Avatar
 
Join Date: Feb 2008
Location: NC
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
....
Old 02-29-08, 03:14 PM
  #38  
Registered shy guy

iTrader: (1)
 
warwickben's Avatar
 
Join Date: Jul 2007
Location: tewksbury, ma
Posts: 1,436
Likes: 0
Received 0 Likes on 0 Posts
is that a carb hat for a webber /o.e.r
Old 02-29-08, 04:27 PM
  #39  
Registered Offender

 
djjjr42's Avatar
 
Join Date: Jul 2006
Location: Bishopville, SC
Posts: 689
Likes: 0
Received 0 Likes on 0 Posts
Indeed it is, listed on eBay as a "turbo bonnet", available in right or left hand feed. I don't know if the elbow is too high to cause probs with the hood or not.
Old 02-29-08, 05:04 PM
  #40  
Registered shy guy

iTrader: (1)
 
warwickben's Avatar
 
Join Date: Jul 2007
Location: tewksbury, ma
Posts: 1,436
Likes: 0
Received 0 Likes on 0 Posts
you could allways cut it off and weld your own elbow on. i couldnt find any on ebay.
Old 02-29-08, 08:27 PM
  #41  
Registered Offender

 
djjjr42's Avatar
 
Join Date: Jul 2006
Location: Bishopville, SC
Posts: 689
Likes: 0
Received 0 Likes on 0 Posts
Here it is, but the auction is over. I have seen these listed many times, perhaps by the same guy?
http://cgi.ebay.com/ebaymotors/ws/eB...218505373&rd=1
Old 03-01-08, 08:25 AM
  #42  
Registered shy guy

iTrader: (1)
 
warwickben's Avatar
 
Join Date: Jul 2007
Location: tewksbury, ma
Posts: 1,436
Likes: 0
Received 0 Likes on 0 Posts
it looks cool , if it comes up again and its not too much for you to spend to test out. i would say go for it.if it doesn't clear try welding a different elbow on.
Old 03-01-08, 12:24 PM
  #43  
Banned. I got OWNED!!!
 
81gen1's Avatar
 
Join Date: Jul 2007
Location: centralia washington
Posts: 288
Likes: 0
Received 0 Likes on 0 Posts
looks to be for a downdraft
Old 03-01-08, 12:51 PM
  #44  
Registered Offender

 
djjjr42's Avatar
 
Join Date: Jul 2006
Location: Bishopville, SC
Posts: 689
Likes: 0
Received 0 Likes on 0 Posts
Negative, its for a sidedraft. Auction states DCOE
Old 03-01-08, 09:37 PM
  #45  
Never stop learning

 
rx7learner's Avatar
 
Join Date: Apr 2006
Location: Tampa
Posts: 403
Likes: 0
Received 0 Likes on 0 Posts
Rotary shack makes some real nice turbo hats and they dont cost much more than that auction you listed.... but let me tell you from personal experience... in the long run you save money anyway through expert guidance and customer support. You can see the level of experience through 680RWHP12A's suggestions...

But getting back to the original thread, Kim did you eliminate the accelerator pump?
Old 03-02-08, 01:59 PM
  #46  
Kim
OBEY YOUR MAZDA

Thread Starter
 
Kim's Avatar
 
Join Date: Oct 2002
Location: Denmark
Posts: 3,060
Likes: 0
Received 2 Likes on 2 Posts
Originally Posted by rx7learner
But getting back to the original thread, Kim did you eliminate the accelerator pump?
Ehh No, why would I wanna do that
Old 03-02-08, 02:36 PM
  #47  
Never stop learning

 
rx7learner's Avatar
 
Join Date: Apr 2006
Location: Tampa
Posts: 403
Likes: 0
Received 0 Likes on 0 Posts
I was looking at the pic of the carb and I dont see the linkage at the bottom that pushes the accelerator pump diaphram. I know my mikuni has it... however It may very well be that it is just how your carb is made?
Old 03-02-08, 05:29 PM
  #48  
Kim
OBEY YOUR MAZDA

Thread Starter
 
Kim's Avatar
 
Join Date: Oct 2002
Location: Denmark
Posts: 3,060
Likes: 0
Received 2 Likes on 2 Posts
Ahh like that.
The OER has an internal piston style acc.pump, but with an external top mounted adjustment screw, pretty trick.
Same goes with the float, also externally adjustable.
Old 12-06-11, 10:32 PM
  #49  
nff
Full Member
 
nff's Avatar
 
Join Date: Jul 2011
Location: canada
Posts: 182
Likes: 0
Received 1 Like on 1 Post
any updates on this thread? (sorry for the necrobump) someone could make a lot of money making replacement 12a housings and exhaust manifolds
Old 03-22-19, 07:13 PM
  #50  
Kim
OBEY YOUR MAZDA

Thread Starter
 
Kim's Avatar
 
Join Date: Oct 2002
Location: Denmark
Posts: 3,060
Likes: 0
Received 2 Likes on 2 Posts


Damn, have not been on the forum for quite some time.
Well I guess this deserves an update.
The motor ended up in my friends racecar and did good in N/A trim with a modified Nikki. I tore it apart recently, measured up the housings - they are still great, no flaking or leaks.
*Fresh seals ordered.
*30mm tap/die ordered
​​​​​​*​Weber modified and ready to snore
*Semi pp in the making 😀
*Aluminimum flywheel and threefork


Quick Reply: My 12a blowthrough build-up



All times are GMT -5. The time now is 09:56 AM.