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datsa73
Re: TWIN CAM A15
#11
No life (a.k.a. DattoMaster)
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Very interesting.
Why put the air box on the exhaust side. Cross flow head?
Would like to know what this thing puts out.

Posted on: 2013/9/29 19:02
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L18_B110
Re: TWIN CAM A15
#12
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would be quicker, easier, cheaper and more powerful just to drop the whole mazda engine in. Plus you'd get a reliable and cheap 5spd.

Posted on: 2013/9/29 22:54
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torino120
Re: TWIN CAM A15
#13
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Got told by a mate (who is a mazda tech kind of guy) the head is a 323 familia head with a modified FWD plenum.

Posted on: 2013/9/30 5:14
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Rallytwit
Re: TWIN CAM A15
#14
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Harry is correct, if you can do your own machine work it is one thing to do this but if you have start paying then it would get pricey fast. This is very cool but if your after more power there are simpler ways.
With all that said I really like it, I suspect that the power out put is similar to 1.6 Mazda 115-120 in stockish trim. There is a weight advantage as Miata motors are a bit porky around 100lbs more than an series.
Any way to find out exactly what was done to make it work? I'd love to know.

Tom

Posted on: 2013/9/30 5:29
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Re: TWIN CAM A15
#15
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Familia head is same as mx5 b6 or bp 1.8 motor. Except familia is fwd or awd.

Same as ford tx3 for us aussies

Posted on: 2013/9/30 5:51
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datsunbeginner
Re: TWIN CAM A15
#16
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Whats the unfamilia head produce?

Posted on: 2013/10/1 23:08
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Rallytwit
Re: TWIN CAM A15
#17
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Just going off what race prepped Miata engines put out, I'd expect 200-220HP but keep in mind that will only go 10-12 hrs before needing rebuilds. I'd say 175HP for a N/A and streetable engine while that doesn't sound like much it's equal to a full race A14......keep in mind it's a guess on my part.

Tom

Posted on: 2013/10/2 2:50
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Re: TWIN CAM A15
#18
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The unfamila head spits doesnt flow well at all and is definately choked down..
But I use e85 to wash the taste out

Posted on: 2013/10/2 6:19
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D
Re: TWIN CAM A15
#19
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there is a turbo version of this Mazda engine would be a very nice setup,

I would like to congratulate this dude who has done it and sorted it out.
Seems its running an electric water pump, some other front pulley to run
the alternator, blocked the timing gear oiling for the belt unit and the
pushrod area most likely to avoid oil issues.

I would love something like this with carbs to show the corolla guys
that A series can rock even harder than a K series.

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also the bp rwd head could be used in that case as the bp is 78mm bores, the rocker cover and inlet for the B6 is dope!http://www.ebay.com/itm/Mazda-miata-1 ... 15%26sd%3D251358742894%26

heres the turbo version big hp
http://www.modified.com/features/modp-1205-1988-mazda-323-gtx/
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and the narrow angle Z6/M head same stud pattern and is the nicest and also a very narrow sohc 16v and 12v version too!
http://image.modified.com/f/features/ ... azda-323-gtx%2Bengine.jpg

http://machineworldny.com/asp/CylinderHead.aspx?pid=1884&type=A

Quote:
Z6/M 1.6 L (1598 cc, 105 hp) ZM-DE (78x83.6 mm) The ZM engine is also known as the Z6, it has an identical bore, yet slightly longer stroke than the ZL as well as a revised head with round intake and exhaust ports. It has exactly the same bore and stroke as the previous generation B6. The 1.5 L (1498 cc, 130 hp) ZL-VE and 1.6 L (1598 cc, 105 hp) ZM-DE are closely related engines with an equal bore (78mm) and share some major parts. The ZL has a stroke of 78.4 mm whilst the ZM has 83.6 mm.

Posted on: 2013/10/21 16:01

Edited by D on 2013/10/21 16:17:33
Edited by D on 2013/10/21 16:20:18
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D
Re: TWIN CAM A15
#20
No life (a.k.a. DattoMaster)
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http://www.miataturbo.net/build-threa ... zm-de-engine-build-62722/

Posted on: 2013/10/21 16:26
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