Are you madabout kit cars      
 "We've Got Kit Cars Covered" Information about Madabout-Kitcars.com Contact Madabout-Kitcars.com         Home of UK kit cars - madabout-kitcars.com Various kit car write ups All the latest kit car news Kit car related and general discussion

Search
Manufacturers
Kit Cars
Kit Car Data sheets
Picture Gallery
SVA Knowledgebase
Clubs & Communities
Build cost estimator
Kit cars for sale
Knowledge Base 
KitcarUSA.com
Classic-Kitcars.com
 

Go Back   Madabout Kitcars Forum > Mad Build Area > Italian Replica builds and chat

Italian Replica builds and chat Lamborghini, Ferrari, Lancia, any Italian replica car build and chat

Reply
 
Thread Tools Display Modes
  #1  
Old 24th December 2018, 13:32
trev_zz trev_zz is offline
Junior Member
 
Join Date: Dec 2018
Location: Hertfordshire, UK
Posts: 6
trev_zz is on a distinguished road
Default Bmw v12?

Hi ladies & gents and a Merry Christmas

Possibly a mad question but has anyone considered, attempted or completed a BMW Z3 engine swap to a V12?

Iíve had a look around and found that BMW themselves did such a thing as, what looks like, an engineering exercise using a V12 from a BMW 750 or 850.

https://performancedrive.com.au/bmw-m-builds-a-z3-with-a-v12-engine-0811/


They would have had a rather large parts bin to pick from.

Cheers,
Trev
Reply With Quote
Available from eBay
  #2  
Old 24th December 2018, 14:25
Lucky@LeMans Lucky@LeMans is offline
Senior Member
 
Join Date: Aug 2012
Posts: 1,215
Lucky@LeMans is on a distinguished road
Default

The engine bay in the Z3 is big to start and designed with the straight six in mind. The V12 isn't that wide and a similar length. It is doable as BMW have proved but you would be better off and have an easier life going with the M3 straight six conversion. If you really must do it you can pick up and old 7 series very cheaply these days and between both cars you should have enough parts to make it happen. Go for it !!

Last edited by Lucky@LeMans; 24th December 2018 at 14:28..
Reply With Quote
  #3  
Old 24th December 2018, 15:27
molleur molleur is offline
Senior Member
 
Join Date: Jun 2015
Posts: 1,101
molleur is on a distinguished road
Default

Now my brain hurts! Would be wonderful with some additional chassis bracing.
Reply With Quote
  #4  
Old 24th December 2018, 18:04
trev_zz trev_zz is offline
Junior Member
 
Join Date: Dec 2018
Location: Hertfordshire, UK
Posts: 6
trev_zz is on a distinguished road
Default

Tempted to keep an eye out for a reasonably priced 750/850.
I'm looking at it as the sound would be worth the effort

As it's a BMW engine not sure if IVA would come into play.
It would be for a Tribute 250.
Reply With Quote
  #5  
Old 24th December 2018, 18:46
molleur molleur is offline
Senior Member
 
Join Date: Jun 2015
Posts: 1,101
molleur is on a distinguished road
Default

Easily found here. Located a good running BMW 750i V-12 for about $1000. Has 130,000 miles, no issues.

Very tempted, but lots of work to do on my 250 SWB as yet.
Reply With Quote
  #6  
Old 24th December 2018, 22:04
Lucky@LeMans Lucky@LeMans is offline
Senior Member
 
Join Date: Aug 2012
Posts: 1,215
Lucky@LeMans is on a distinguished road
Default

Quote:
Originally Posted by trev_zz View Post
Tempted to keep an eye out for a reasonably priced 750/850.
I'm looking at it as the sound would be worth the effort

As it's a BMW engine not sure if IVA would come into play.
It would be for a Tribute 250.
I might be wrong but I'm pretty sure you can swop an engine out and it doesn't need to be like for like. IVA would only apply if you modified the structure of the monocoque to accommodate it.
Reply With Quote
  #7  
Old 25th December 2018, 09:54
micky1mo's Avatar
micky1mo micky1mo is offline
Senior Member
Enthusiast
 
Join Date: Dec 2006
Posts: 1,007
micky1mo is on a distinguished road
Default

Lucky@Lemans You'r correct about the engine change but DVLA will need to be told and the V5 up-dated.
Also the correct details will have to be confirmed with an invoice or "statement" in writing from a reputable garage.

With regards to the BMW V12 if I remember correctly this engine uses 3 ECU's. One for each bank of cylinders and one master, which is then linked to the gearbox ECU, that's a lot of wires! !
Reply With Quote
  #8  
Old 25th December 2018, 19:45
rossnzwpi rossnzwpi is offline
Senior Member
Enthusiast
 
Join Date: Mar 2008
Posts: 206
rossnzwpi is on a distinguished road
Default

Wow, the IVA process doesn't require checks for fitting a different engine? In New Zealand any such change would require engineering checks and certification. They'd ask for example if the braking was up to fitting a V12.
Reply With Quote
  #9  
Old 4th January 2019, 14:33
trev_zz trev_zz is offline
Junior Member
 
Join Date: Dec 2018
Location: Hertfordshire, UK
Posts: 6
trev_zz is on a distinguished road
Default

Thanks for the advice guys. Looks like pro's and con's.
I'm a bit old skool and the thought of 1 ECU was enough but 3
It'll be a while before I can get the ball rolling with the build and I've decided to ditch the V12 idea.

I'll update when work is in progress
Reply With Quote
  #10  
Old 4th January 2019, 21:12
redratbike's Avatar
redratbike redratbike is offline
Senior Member
 
Join Date: Sep 2011
Posts: 1,232
redratbike is on a distinguished road
Default

Stand alone aftermarket ecu would probably be easier to sort
Reply With Quote
  #11  
Old 2nd February 2019, 12:52
JJMCD JJMCD is offline
Member
 
Join Date: Nov 2015
Posts: 38
JJMCD is on a distinguished road
Default

When I read these posts about the invasiveness of the IVA, I have to laugh. Here in Connecticut, DMV inspection testing of a Z3 of this era consists of checking to see if the lights work and plugging in the OBD2 plug to see if there are smog-related error codes- that’s it! Other US states are even more lenient.

Last edited by JJMCD; 2nd February 2019 at 12:55..
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +0. The time now is 04:21.

copyright © madabout-kitcars.com 2000-2019
terms and conditions | privacy policy