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Old 07-14-2008, 06:46 PM
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V12 miata

I dropped a V12 into a miata, and Im finally getting around to setting up the pulleys. Just curious which type of alternator would be simple and maintence free. I have always used ford alternators in the past but was thinking that maybe a GM style would be a good choice. Any suggestions?

Ben

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Old 07-14-2008, 07:47 PM
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You have to be full of it. A V12 in a Miata??? A smallblock Ford barely fits and you are saying that you "dropped" a V12 in one. Don't you mean on one?? What are you smoking?? Why don't you share it??
If you had said I stretched the front end on a Miata to install a V12,it MAY have been believable...it's not even April fools day....which sounds like your day. IF you , and I know what a Miata underhood is like, have the ability to install any V12 in a Miata, there is no one here that can advise you on anything. What a Troll.
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Old 07-14-2008, 07:50 PM
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You must be joking! If you made some 12cyl fit in a miata then you could not need help with an alternator!
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Old 07-14-2008, 07:57 PM
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coat the entire alternator in grease and use the same shoehorn that you used to the the V12 in that engine bay.
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Old 07-14-2008, 09:44 PM
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Pics! Prove it!
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Old 07-14-2008, 10:50 PM
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Actually a Ford 351 fits pretty well. My question is what V12 ????
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Old 07-14-2008, 10:57 PM
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I was thinkin' about this a while back and it wouldn't be that difficult if, like Woodz said, you stretched the front end. Extend the frame rails and the sheet metal. Yeah, it would be some work, but it's not like it would be impossible. Actually, I think the car would be more attractive with a little more length between the windshield and the nose.
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Old 07-14-2008, 11:48 PM
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Guess it depends on what ouput your looking for...Honda makes some nice tiny alternators (nippon denso I think) that are single wire 60amp. That being said it really depends on how much room you got to fit it brainsboy, sounds like you don't have much room! Pulley setup can be more of a problem but I know the Nippons are capable of high rpm and are extremely durable.

Might want to check out the junkyards and see whats under the hood of the imports in the yard, lots of possibilities. The one alternator I was thinking of was from a early 78 Honda Civic which was single wire and 60 amp I think, nice and small and could take rpm well.

BTW you non-believers should have a look at Brainsboys photo album, if there is one person who can make a V12 fit in a Miata...its Brainsboy! He's evil!

Last edited by 4 Jaw Chuck; 07-14-2008 at 11:57 PM.
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Old 07-14-2008, 11:59 PM
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Quote:
Originally Posted by brainsboy
I dropped a V12 into a miata,
Ben
There aren't too many V12s..at least modern ones. Which V12 did you use ?

The Jag I am familar with..not much to recomend it over a SBC with all the available go fast parts. The V12 is very heavy..makes less power and cost for parts on most are a factor or two above a SBC/SCF...

BMW..? or even more exotic..?

What engine did you drop in the Miata ?

Not to be skeptical..but from your gallery it appears you should be able to pick an alterantor setup..

Last edited by Docc; 07-15-2008 at 12:04 AM.
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Old 07-15-2008, 06:22 AM
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Quote:
Originally Posted by 4 Jaw Chuck
BTW you non-believers should have a look at Brainsboys photo album, if there is one person who can make a V12 fit in a Miata...its Brainsboy! He's evil!
O.K., I looked at his photo album. I didn't see anything in there that I haven't seen done before and nothing that indicates he could drop a V12( unless it is a scale model airplane engine) into a Miata. I may be a non-believer, but it's based on 40+ years of background installing all sorts of weird engines into the wrong cars. V8 Corvairs and VWs,Big Block Vegas (I'm a Ford guy, but it was fun). Then he asks about an alternator??? Just because someone has pics in his/her gallery does not mean they did it. I only put pics in my gallery of my work, yet I have tons of pics that are not mine I could place there if I wanted to distort my background. Now, if he built a custom frame and pushed the firewall back into the interior, maybe, but that is a long way from "dropped". I think he's full of it....Prove me wrong, I'd love to see it.Anyone that can afford a V12 of any kind could afford to get the complete front drive assembly and alternator with the engine. If he didn't need to ask for suggestions on how to install the engine why would he need help with the piddly stuff. Very unbelievable.
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Old 07-15-2008, 07:25 AM
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Hey woodz, 40 years experience, should of taught you to be a believer......

Thanks "4 chuck" for the only real answer here. Unbelievers should be punished

http://i174.photobucket.com/albums/w...y/DSC01614.jpg

http://i174.photobucket.com/albums/w...y/DSC01494.jpg

http://i174.photobucket.com/albums/w...y/DSC01737.jpg

http://i174.photobucket.com/albums/w...y/DSC01736.jpg

Pics not good enough for all you who dont believe? how about a video?

http://www.youtube.com/watch?v=cXll5-8baE4

Last edited by brainsboy; 07-15-2008 at 07:39 AM.
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Old 07-15-2008, 07:54 AM
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You never told us what kind of V12 it is.
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Old 07-15-2008, 07:57 AM
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...Jaguar V-12...
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Old 07-15-2008, 08:00 AM
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Looks to me like it fits!

Now I ask you, isn't this embracing the definition of the "true American hot Rod Spirit"?

You da Rodder, Brainsboy!
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Old 07-15-2008, 08:11 AM
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Quote:
Originally Posted by brainsboy
Hey woodz, 40 years experience, should of taught you to be a believer......

]
That , although is a V12 in a Miata, not a drop in as I understand one. That embodies what I said about cutting the firewall,etc. When it is expressed as a "drop-in" by most of the people I deal with, it may include many mods but usually hacking back the firewall is out of the definition. It is still odd that after that much work you would want advice on an alternator though.
I would note that in my earlier post, that NONE of the swaps I mentioned were referred to as "drop-ins". I also put a 1940 Desoto body on a 1987 T-bird chassis...that wasn't a drop-on either.I do call it a "graft". It was a bunch of engineering and modifying of many items. When it was completed, I didn't come here and ask what door handles I should use.
So I give you credit for your work up to this point, but to many that are looking at undertaking something unusual, the term "dropped in" is misleading to the uninformed.
What rear have you installed? The stock one won't hold up to a 5.0 Ford very long, so I imagine you have some other one chosen. Is it IRS or are you going solid? I look forward to seeing it operational. Interestingly that Jag and Mazda are Ford owned too. I have considered a Jag V-12 in one of my Boss 302s, but doubt I could afford what looks like 6 Webers . I was going to badge it with Ford emblems just to confuse people. Good luck on completing it.

Last edited by woodz428; 07-15-2008 at 09:04 AM.
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