E30 V12 - questions.

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munky30
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Post Wed Mar 28, 2007 3:20 pm

Ok, well it looks like I've been tempted to do something I shouldnt do....

Especially after my last effort. But I've been offered a V12. 8O

What do I need from the original car? Engine, box, wiring, ecu, radiator, etc I assume I will need. What about the diff/drive shafts?

What else is involved in the swap. I'm guessing custom exhaust, some sort of prop shaft, some wiring butchery, engine mounts.....
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Post Wed Mar 28, 2007 3:30 pm

Speak to Dips and Glenn.. Glenn made one for Dips
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Post Wed Mar 28, 2007 4:31 pm

lol,you need to run into the hills and save yourself from yourself......
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Post Wed Mar 28, 2007 4:55 pm

lmao...

I'm not thinking I'll be able to do it over a weekend...

I'm thinking more of a 2 year plan, involving seamwelding a whole car (not the one I have now), coilovers all round, complete restoration of the body, rebuild of the engine etc etc...

I have to have something to spend my money on dont I? :mad:
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Post Wed Mar 28, 2007 5:12 pm

I have to have something to spend my money on dont I?
:D That's the spirit :lol:
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Post Wed Mar 28, 2007 5:59 pm

Finding a manual box is the biggest problem m8 and expect to pay 1000 plus for it unless your using the auto
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Post Wed Mar 28, 2007 6:38 pm

well I'd stick with the auto for starters. Get it in and running in a car that can handle it. Then hunt down a manual.

I know there are a few options for manual boxes for these engines as a mate of mine is building a viper replica with one in it. But that would be secondary to just getting it in and making the car suitable for it.

After that... twin turbo... but thats a looooong way off, would probably be paying for that using my pension.
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Post Wed Mar 28, 2007 6:47 pm

a V12 conversion into an e30 is not a project to be taken lightly!
not that i'm implying you would, i just thought it my duty to say.
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Post Wed Mar 28, 2007 6:56 pm

No I know that much lol. As I've said it would be a long term project and involve a complete restoration/strengthening of the whole car along with rebuilding the engine.

I can fit an M20 in a weekend (whether it will work or not once I'm done is a different story) but am under no illusion that shoehorning a v12 in would be anything less than 100 times more complicated and involved.

I have always loved the bmw v12's, would love to use one in an e30 and want something to do over a couple/few years as a project. I've also been offered the engine cheap, which rings alarm bells, but not many as I plan to rebuild it anyway.

I'd start by rebuilding the engine over a year or so, then when that was near completion buy the donor car and begin the rebuild/re-vamp of that.

Then mate them. :twisted:

I'm just interested to know what, apart from the engine, is needed to make it fit? And if there are parts available, or they need to be fabricated.

Things like engine mounts, prop shafts, diffs, gearbox mounts, would the tunnel need work, does anything need to be 'moved' in the engine bay to make it fit (the firewall/bulkhead for instance) , how complex is the wiring to make it work in an e30 etc etc.
Last edited by munky30 on Wed Mar 28, 2007 7:00 pm, edited 1 time in total.
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Post Wed Mar 28, 2007 6:58 pm

I'll certainly second that Glenn :D
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Post Wed Mar 28, 2007 8:35 pm

Flippin' 'eck.. Is that the 850iS gearbox?

Be cheaper to use a gearbox with a removeable bell housing and make/have someone make a bell housing. Cosworth gearbox perhaps?

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Post Wed Mar 28, 2007 8:43 pm

I would say the brake survo would be a pritty major part that needs to be relocated but there are afew ways of doing it that have been talked about on here so thats prehaps not that bad as some ones been there before rather than you having to start afresh! :D

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dont know if these are a zoners car, just some i found on the net ages ago.

thought they were good pics so you could see what parts were in different places. :D
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Post Wed Mar 28, 2007 8:51 pm

munky, put it in the boot of the touring!! you know you want too!!!
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Post Wed Mar 28, 2007 9:02 pm

appletree wrote: Image

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dont know if these are a zoners car, just some i found on the net ages ago.

thought they were good pics so you could see what parts were in different places. :D
:drool: :drool: phwoooaar! Engine porn.
stuart the gallant wrote:munky, put it in the boot of the touring!! you know you want too!!!
Well when I go to pick it up, I'll be using the touring to transport it.... if thats what you mean winkeye

What else would I use? :mad: people told me the 325 engine and box (and crane) wouldnt fit... how wrong they were....
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Post Wed Mar 28, 2007 11:03 pm

munky30 wrote:I know there are a few options for manual boxes for these engines as a mate of mine is building a viper replica with one in it.
i'd be interested in this. as the E32 and E34 are so similar, i reckon a E34 550 would be easy-ish to build if i had a 750i donor. there was one with mot and tax in the local paper for £450 a while back winkeye

i nearly did it to my wifes 525i soprt but the manual gearbox hassle put me off
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Post Fri Mar 30, 2007 8:57 pm

gareth wrote: i'd be interested in this. as the E32 and E34 are so similar, i reckon a E34 550 would be easy-ish to build
Exactly what I thought when I bought my 540, and how pleased was I when I found out it had the manual 6 speed box winkeye All I have to do now is kill the v8 winkeye
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Post Fri Mar 30, 2007 9:03 pm

will the 6 speed be useable with a custom bellhousing then?

oooh, how about a E28 550i? winkeye
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Post Sat Mar 31, 2007 12:20 am

Apparently the manuals from the above mentioned cars are weak. Though thats just what I've been told by someone thats putting an M70 into a kit car.

I have other plans gearbox wise, but they wont come until after I have it all running on the auto as they're not cheap.
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Post Sat Mar 31, 2007 11:23 am

the v8 gearboxs are e36 m3 gearboxs with different bellhousing .

Havent heard they are weak.
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Post Mon Apr 02, 2007 1:08 pm

I reckon you should do the E34 V12 conversion if any Munky. The V12 is a big lazy lump, especially with an autobox which would suit the bigger car better. It must be easier to get the V12 into an E34 than an E30 as well.

A V12 E34 Tourer in black would make a very nice accompaniment to the stripped-out E30 touring drifter. You could create a super-luxury family car with air-con, electric everything and DVDs etc which would allow you to make compromises with the E30 which you might not otherwise want to/be allowed by the missus to like removing rear seats or fitting six-point harnesses etc.

Your mechanical skills seem to be improving rapidly from what I've read on the forum and putting a V12 in an E34 would be a more attainable goal than putting one in an E30 which Glenn, with all his obvious skill, found a real b*gger of a job. Obviously if you do something like this your skills will increase even more and you might feel confident enough to put an E36 M3 engine in the E30 or something like that, creating a more balanced and usable car than the V12 E30.

Once you've done all that you could build me a house and a Bugatti replica if you like :D
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Post Mon Apr 02, 2007 1:30 pm

stuartgallafant wrote:munky, put it in the boot of the touring!! you know you want too!!!
yeah. mount it behind the front seats and have an empty engine bay, no problems with space and no probs with weight distribution!
lol
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Post Mon Apr 02, 2007 1:44 pm

oakey wrote:
stuartgallafant wrote:munky, put it in the boot of the touring!! you know you want too!!!
yeah. mount it behind the front seats and have an empty engine bay, no problems with space and no probs with weight distribution!
lol
how cool would you look putting your messages into the engine bay at asda and driving off with a v12 soundtrack :cool:
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Post Tue Apr 03, 2007 12:10 pm

Would be a cracking project whichever route you took. Be aware that rebuilding monster BMW engines is a costly exercise (I'm sure you know that already!). I bought my M60 cheap then stripped it, it will be back together this weekend but I had to go the ECP route to buy gaskets and ancillaries because BMW just wanted to pull my trousers down and take me good and proper - try £550 - £600 for a complete engine gasket set and head bolts :eek: The lifters are £13 each if I recall from ECP and there are 32 of them on the M60, I didn't even bother enquiring at BMW! Camshafts are £300+ each, then there are valves etc. to consider. I'm fortunate because my motor was in good shape, everything is well within tolerance, just gaskets/stem seals and water pump have been replaced.

Either way up, a V12 touring would be sexytime!
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Post Tue Apr 03, 2007 1:47 pm

just buy mine it would be cheaper ............lol
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Post Tue Apr 03, 2007 6:31 pm

dips346 wrote:just buy mine it would be cheaper ............lol
Whats the state of yours now anyway - is it finished yet? I've prolly missed a thread or something so please feel free to direct me there mate 8)
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Post Tue Apr 03, 2007 6:53 pm

tim-ix wrote:I reckon you should do the E34 V12 conversion if any Munky. The V12 is a big lazy lump, especially with an autobox which would suit the bigger car better. It must be easier to get the V12 into an E34 than an E30 as well.

A V12 E34 Tourer in black would make a very nice accompaniment to the stripped-out E30 touring drifter. You could create a super-luxury family car with air-con, electric everything and DVDs etc which would allow you to make compromises with the E30 which you might not otherwise want to/be allowed by the missus to like removing rear seats or fitting six-point harnesses etc.

Your mechanical skills seem to be improving rapidly from what I've read on the forum and putting a V12 in an E34 would be a more attainable goal than putting one in an E30 which Glenn, with all his obvious skill, found a real b*gger of a job. Obviously if you do something like this your skills will increase even more and you might feel confident enough to put an E36 M3 engine in the E30 or something like that, creating a more balanced and usable car than the V12 E30.

Once you've done all that you could build me a house and a Bugatti replica if you like :D
Hmm, thats an idea.... Dunno though, I like the idea of an e30 v12 touring, its so wrong its right. An e34 v12 touring doesnt have the same ring to it, they made v8 ones so its not much of a step up, and the performance figures from the v12 arent that much over the v8's that came standard in the 5's.

But i do want to get an e34 tourer as a family wagon at some point once this car goes too far away from being practical.

Tempting.... I'm going to be spending a while doing the engine, probably wont be ready to put it into a car until next summer anyway so will see how the mood takes me.
Gravy wrote:Would be a cracking project whichever route you took. Be aware that rebuilding monster BMW engines is a costly exercise (I'm sure you know that already!). I bought my M60 cheap then stripped it, it will be back together this weekend but I had to go the ECP route to buy gaskets and ancillaries because BMW just wanted to pull my trousers down and take me good and proper - try £550 - £600 for a complete engine gasket set and head bolts Eek The lifters are £13 each if I recall from ECP and there are 32 of them on the M60, I didn't even bother enquiring at BMW! Camshafts are £300+ each, then there are valves etc. to consider. I'm fortunate because my motor was in good shape, everything is well within tolerance, just gaskets/stem seals and water pump have been replaced.

Either way up, a V12 touring would be sexytime!
Yeah I've been looking into the cost of a rebuild, lots and lots. But I only plan on doing it a bit at a time, spending 'little' and often as it were to build it up gradually.
Dips wrote:just buy mine it would be cheaper ............lol
If only. The thing is, I dont have any large chunks of money coming my way anytime soon, so building one up gradually over time is more suited to my budget.

Ou of interest though... how much? winkeye
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Post Tue Apr 03, 2007 10:24 pm

Same as me Munky, I have taken ages to do my engine but it's because I'm doing little and NOT often! Tis such good craic when I do go out to play with it though! Can't wait for the weekend so I can continue! Have you already bought the V12?
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Post Tue Apr 03, 2007 10:37 pm

Gravy wrote:Same as me Munky, I have taken ages to do my engine but it's because I'm doing little and NOT often! Tis such good craic when I do go out to play with it though! Can't wait for the weekend so I can continue! Have you already bought the V12?
the v12 was all ways mine to start with
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Post Tue Apr 03, 2007 10:40 pm

munky30 wrote:
Dips wrote:just buy mine it would be cheaper ............lol
If only. The thing is, I dont have any large chunks of money coming my way anytime soon, so building one up gradually over time is more suited to my budget.

Ou of interest though... how much? winkeye
not sure i know it owe me around £4000 so far,but it runs just needs to refine it or go all the way and quad turbo it but still have another 13 cars..... :cry:
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Post Tue Apr 03, 2007 11:32 pm

Gravy wrote:Same as me Munky, I have taken ages to do my engine but it's because I'm doing little and NOT often! Tis such good craic when I do go out to play with it though! Can't wait for the weekend so I can continue! Have you already bought the V12?
Its not in my posession yet, but its secured. Should be getting it mid april once the chap that's breaking the 750 gets back from some time away.

Thats the way I intend on doing it, more as something to do in my spare time, with whatever cash my 325 decides to leave me with.
dips wrote:not sure i know it owe me around £4000 so far,but it runs just needs to refine it or go all the way and quad turbo it but still have another 13 cars.....
keep it, put lots of turbo's on it!

On the end of the very long list of things I want to do with mine is a bi-turbo setup, 4 is a bit greedy for my liking.

13 cars?! Why? How?... errrrr
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