13B Carb options
03-31-2008 | 03:48 PM
#1
Thread Starter
Member
Joined: Mar 2008
Posts: 32
From: Elroy, Texas
So the daily Miata just threw a rodbearing at the track, and I'm weighing my options. I have a couple 13Bs sitting in parts cars that might be good, and if not could easily be rebuilt (I know I have a set of good housings here)... and I also have an intake manifold off a formula Mazda that takes the Weber 48 DCOE. Problem is, those little bastards are expensive, at least new... so anybody have any ideas for something that will bolt onto this intake, or for which another intake is cheaper?
And before we get to that discussion, no I don't particularly want to run EFI on this thing. The idea is for it to be about the same price as a 1.6L rebuild, and take about as long. I haven't really done any research beyond pricing, but I'm fairly confident in my abilities to be able to bolt up a 13B and transmission to the Miata PPF/subframe. If I did go the EFI route it would take me months to do the electrics and get it hooked up. With the carb the only electrics to deal with are alternator/starter and however I run gauges (probably aftermarket unless its easy to hook up Miata senders to the rotary).
So yeah, if anybody's got any 13B Miata links I'd be happy to look at them; but primarily I'm lookin' for carb info, or an alternate that will bolt up to an intake designed for the 48 DCOE.
And before we get to that discussion, no I don't particularly want to run EFI on this thing. The idea is for it to be about the same price as a 1.6L rebuild, and take about as long. I haven't really done any research beyond pricing, but I'm fairly confident in my abilities to be able to bolt up a 13B and transmission to the Miata PPF/subframe. If I did go the EFI route it would take me months to do the electrics and get it hooked up. With the carb the only electrics to deal with are alternator/starter and however I run gauges (probably aftermarket unless its easy to hook up Miata senders to the rotary).
So yeah, if anybody's got any 13B Miata links I'd be happy to look at them; but primarily I'm lookin' for carb info, or an alternate that will bolt up to an intake designed for the 48 DCOE.
04-05-2008 | 02:23 PM
#2
Fabricator
Joined: Jan 2004
Posts: 1,322
From: Central Ohio (Hebron) Zephyrhills Fla.
Originally Posted by Chris Taylor' post='897587' date='Mar 31 2008, 12:48 PM
So the daily Miata just threw a rodbearing at the track, and I'm weighing my options. I have a couple 13Bs sitting in parts cars that might be good, and if not could easily be rebuilt (I know I have a set of good housings here)... and I also have an intake manifold off a formula Mazda that takes the Weber 48 DCOE. Problem is, those little bastards are expensive, at least new... so anybody have any ideas for something that will bolt onto this intake, or for which another intake is cheaper?
And before we get to that discussion, no I don't particularly want to run EFI on this thing. The idea is for it to be about the same price as a 1.6L rebuild, and take about as long. I haven't really done any research beyond pricing, but I'm fairly confident in my abilities to be able to bolt up a 13B and transmission to the Miata PPF/subframe. If I did go the EFI route it would take me months to do the electrics and get it hooked up. With the carb the only electrics to deal with are alternator/starter and however I run gauges (probably aftermarket unless its easy to hook up Miata senders to the rotary).
So yeah, if anybody's got any 13B Miata links I'd be happy to look at them; but primarily I'm lookin' for carb info, or an alternate that will bolt up to an intake designed for the 48 DCOE.
The DCOE is the horizontal carb. The vertical downdraft carb is the Weber 48 IDF.While new IDFs are expensive, most used ones are not. At swap meets and such Look on VW news groups. Used on sand rails and street cars (VWs with dual port heads). Also Berg makes Weber replicas up to 55MM and those are on sand rails and VW drag cars.
Lynn E. Hanover
And before we get to that discussion, no I don't particularly want to run EFI on this thing. The idea is for it to be about the same price as a 1.6L rebuild, and take about as long. I haven't really done any research beyond pricing, but I'm fairly confident in my abilities to be able to bolt up a 13B and transmission to the Miata PPF/subframe. If I did go the EFI route it would take me months to do the electrics and get it hooked up. With the carb the only electrics to deal with are alternator/starter and however I run gauges (probably aftermarket unless its easy to hook up Miata senders to the rotary).
So yeah, if anybody's got any 13B Miata links I'd be happy to look at them; but primarily I'm lookin' for carb info, or an alternate that will bolt up to an intake designed for the 48 DCOE.
The DCOE is the horizontal carb. The vertical downdraft carb is the Weber 48 IDF.While new IDFs are expensive, most used ones are not. At swap meets and such Look on VW news groups. Used on sand rails and street cars (VWs with dual port heads). Also Berg makes Weber replicas up to 55MM and those are on sand rails and VW drag cars.
Lynn E. Hanover
04-05-2008 | 03:53 PM
#3
Senior Member
Joined: May 2002
Posts: 22,465
From: California
putting the engine in the car is pretty easy, you can just put the miata tailhousing on your rx7 trans, or better yet use the rx bellhousing, and the miata gears.
that intake works well, theres an unnamed shop thats using that intake to the tune of 290rwhp on a non bridge port 13b
that intake works well, theres an unnamed shop thats using that intake to the tune of 290rwhp on a non bridge port 13b
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