Z3M V8 Conversion

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c_w
Joined: Thu 19 Aug, 2004 17:50
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  M roadster S50

Post by c_w » Tue 19 Oct, 2010 12:19

Progress is looking great! Looking forward to seeing this sometime! Throttle sounds like it could be a problem with short travel, I would expect you'd want a nice long controllable one :D . Also did the engine come with electronic throttles or did you have to source them too?

If you've now got more clearance near the top of the bulkhead I would definitely recommend triangulating the strut brace to the bulkhead!

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markrnorton
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  Other roadster
Location: Essex

Post by markrnorton » Thu 21 Oct, 2010 07:14

Mark

Have you bled your ABS pump yet ? and if so, was there a cunning plan ?

Mark
Still modifying

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TaffZee
Joined: Thu 20 May, 2010 10:45
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  blank
Location: ACREFAIR
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Post by TaffZee » Thu 21 Oct, 2010 08:22

Very Impressive, How will you explain the mod to your insurance :shock: Its bad enough when you tell them you have changed the wheels :head:

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markrnorton
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  Other roadster
Location: Essex

Post by markrnorton » Thu 21 Oct, 2010 13:07

The insurance is the easy bit !
Still modifying

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Deano1712
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  M roadster S50
Location: Leeds

Post by Deano1712 » Thu 21 Oct, 2010 22:22

c_w wrote:Progress is looking great! Looking forward to seeing this sometime! Throttle sounds like it could be a problem with short travel, I would expect you'd want a nice long controllable one :D . Also did the engine come with electronic throttles or did you have to source them too?

If you've now got more clearance near the top of the bulkhead I would definitely recommend triangulating the strut brace to the bulkhead!
Its got a single throttle about 90mm diameter. That was another ebay job about £200 delivered new.
Good point about the triangulation. I will have a look at that over the next week. It should stiffen the front end up good.
markrnorton wrote:Mark

Have you bled your ABS pump yet ? and if so, was there a cunning plan ?

Mark
No Mark I haven't yet. The clutch is not connected up so I cant bleed either. The engine has to come out and the transmission off so I can get a hard line onto the slave. I plan to take the hard line to the top of the bellhousing and then there will be a very short hose needed. The incoming clutch pipe now has AN4 female on the bulkhead.
I hear bleeding the ABS can be a pain. Im going to use a pressure bleed and crack all the pipes to the ABS before going to each caliper. Fingers crossed that will do it.
I hit a snag last weekend getting the steering pump pulley on. Its a heavy press and I snapped a stud of in the pump shaft :head: I may be able to sort it, if not its money and time delay (new pump).
Good news is that I have found a company to coat the manifolds. They will charge £300+vat and Im taking them over next week. While they are away (for 2-weeks) the engine is coming out so I can paint the engine bay. I should then be able to get it fitted for the last time, plumb up everything and fire up the beast.
I'm not running the car till spring now. At best the main work will be finished late November and its well into the gritting season then so it will be staying in the garage.
I have decided to part with a whole load more cash and do a proper job on the brakes and wheels. I will probably go for CSL discs at the front and new calipers front and rear 6/4 pots. For wheels I quite like CCW Classics. They are custom made to any width and offset. I need to figure out the best sizes. 10.5 or 11"x18 on the rear is the aim :) Anyone got any guidance on the biggest wheel that will fit, and offset?
Z3M with a few mods...and a little bit more power

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Deano1712
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  M roadster S50
Location: Leeds

Post by Deano1712 » Sat 23 Oct, 2010 18:04

I have the steering shaft finished and trial fitted today. I'm very pleased with it and from the pic you can see its quite central though the gap between the inner and outer header primary tubes. Clearances are fine. Job done for that one.
Image
DSC02367 by deansie1712, on Flickr
Now I have the smaller Cats I have made the central exhaust. It just needs welding up. Happy with that too, so its been a good day.
Image
DSC02369 by deansie1712, on Flickr
I'm going to include a mount for the central exhaust onto the transmission mount. This will hold the front of the exhaust steady. The flexi joint is there to allow for engine movement, so it doesnt stress the exhaust. The standard Z3m exhaust has this feature.
Im starting to get excited! Methinks the rear tyres dont look wide enough for 580Nm. :lol:
Last edited by Deano1712 on Sat 10 Mar, 2012 11:01, edited 1 time in total.
Z3M with a few mods...and a little bit more power

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Deano1712
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  M roadster S50
Location: Leeds

Post by Deano1712 » Thu 28 Oct, 2010 21:59

I have the central exhaust welded and finished now. It routes nicely down the transmission tunnel and all parts are above the bottom of the floorpan. The rear part of the exhaust is a Magnaflow X-pipe to balance the flow.
Image
DSC02372 by deansie1712, on Flickr

Tomorrow I am taking the manifolds to here for coating. They sounded really helpfull on the phone so think they should do a good job of it. Will post a few pics when I get them back.
Last edited by Deano1712 on Sat 10 Mar, 2012 11:02, edited 1 time in total.
Z3M with a few mods...and a little bit more power

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aceman
Joined: Sun 01 Jun, 2008 12:16
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  M roadster S50
Location: Wakefield

Post by aceman » Thu 28 Oct, 2010 22:59

Are you going for the black or chrome option :?:
Aceman

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Deano1712
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  M roadster S50
Location: Leeds

Post by Deano1712 » Thu 28 Oct, 2010 23:19

aceman wrote:Are you going for the black or chrome option :?:
Seems the silver cant withstand as much temperature so I think black, but will see what they suggest.
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topfuelking
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  Z3 roadster 2.8 supe
Location: Pays de la Loire

Post by topfuelking » Fri 29 Oct, 2010 22:19

Good boys at Camcoat Performance Coatings my mate dave beck bike is on the cover of the add
THANKS MARC
looking for a carp fishing hoilday we can help http://www.carpfishingmayenne.com

ImageSYMPTOMS OF A BOOST JUNKY

1. You get excited when it's cold outside.
2. You fill up every three days.
3. The size of your grin is directly proportional to the amount of boost you’re on.

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Deano1712
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  M roadster S50
Location: Leeds

Post by Deano1712 » Sun 31 Oct, 2010 21:54

A few pics from todays job to add a front exhaust mount...
Image
DSC02381 by deansie1712, on Flickr
Image
DSC02380 by deansie1712, on Flickr

With the bits for the exhaust mount added these parts are now all complete so its time for powder coating.
Image
DSC02382 by deansie1712, on Flickr
Last edited by Deano1712 on Sat 10 Mar, 2012 11:04, edited 1 time in total.
Z3M with a few mods...and a little bit more power

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markrnorton
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  Other roadster
Location: Essex

Post by markrnorton » Mon 01 Nov, 2010 07:16

Mark

How have you got on with the starter motor fitment and its clearance around the exhaust manifold and steering ?

M
Still modifying

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Deano1712
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  M roadster S50
Location: Leeds

Post by Deano1712 » Thu 11 Nov, 2010 22:49

markrnorton wrote:Mark

How have you got on with the starter motor fitment and its clearance around the exhaust manifold and steering ?

M
There is plenty of clearance around the starter. I will post some pics when the engine is back in.

Recent work has been all about preparing and painting the engine bay. I also have mounts made for the computer and relay box. Progress is going to be a lot faster now this is all done.
Image
DSC02388 by deansie1712, on Flickr
Image
DSC02398 by deansie1712, on Flickr
Image
DSC02406 by deansie1712, on Flickr
Image
DSC02402 by deansie1712, on Flickr
Image
DSC02405 by deansie1712, on Flickr
Last edited by Deano1712 on Sat 10 Mar, 2012 11:06, edited 1 time in total.
Z3M with a few mods...and a little bit more power

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markrnorton
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  Other roadster
Location: Essex

Post by markrnorton » Fri 12 Nov, 2010 11:34

nice

does your fuel rail have a return ?
Still modifying

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Deano1712
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  M roadster S50
Location: Leeds

Post by Deano1712 » Fri 12 Nov, 2010 13:04

The return goes back from the PRV under the floor. The LS3 rail has no return.
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markrnorton
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Location: Essex

Post by markrnorton » Fri 12 Nov, 2010 13:48

Same on the ford fuel rail, no return
Still modifying

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topfuelking
Joined: Sat 26 Feb, 2005 15:13
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  Z3 roadster 2.8 supe
Location: Pays de la Loire

Post by topfuelking » Fri 12 Nov, 2010 18:27

nice work pal
THANKS MARC
looking for a carp fishing hoilday we can help http://www.carpfishingmayenne.com

ImageSYMPTOMS OF A BOOST JUNKY

1. You get excited when it's cold outside.
2. You fill up every three days.
3. The size of your grin is directly proportional to the amount of boost you’re on.

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Deano1712
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  M roadster S50
Location: Leeds

Post by Deano1712 » Sun 14 Nov, 2010 20:19

Got the manifolds back Friday. Here are a few pics showing the ceramic coating. This should keep the rust off and is supposed to insulate, but it seems a thin layer.
Image
DSC02408 by deansie1712, on Flickr
Image
DSC02412 by deansie1712, on Flickr

The engine bay is now prepared. The powder coating company let me down this week so have lost a week while another company (hopefully) finish all the mounts and brackets. When I get them back the engine will be fitted and can get on with wiring :roll:
Image
DSC02410 by deansie1712, on Flickr
More next weekend...
Last edited by Deano1712 on Sat 10 Mar, 2012 11:08, edited 1 time in total.
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Jamezee
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  Z3 roadster 2.2i
Location: Royston Vasey

Post by Jamezee » Sun 14 Nov, 2010 23:37

Do you think it will be ready for the 28th :?:
Would be nice to see it.......probably disappearing into the distance :)
It/you were fast enough before but with that monster fitted OMG :shock:
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Deano1712
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  M roadster S50
Location: Leeds

Post by Deano1712 » Mon 15 Nov, 2010 07:46

Jamezee wrote:Do you think it will be ready for the 28th:
I was aiming for that but it feels unlikely. A job like this takes longer and costs more than expected. Will give it a go but I think it's going to be the spring before I get to a meeting with it.
Z3M with a few mods...and a little bit more power

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markrnorton
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Location: Essex

Post by markrnorton » Mon 15 Nov, 2010 12:15

It will also need a decent shakedown and de-snag :wink:

I am so glad you are ahead of me, it helps with some of the future problems :lol:
Still modifying

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Deano1712
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  M roadster S50
Location: Leeds

Post by Deano1712 » Sat 20 Nov, 2010 10:19

Got all the mounts and brackets back from powder coating yesterday. Its the first time I have had this done and Im a convert. Cheap and a really good job - thick durable coating. All the brackets shown cost me £45. Todays job is to fit everything and try to finish the mechnical aspects of the installation in the engine bay. The rear end of the car needs a biit of work yet - the diff has to come off to fit an offset rear bush and to get the driveshaft on. I will post some more photos later.
Image
DSC02417 by deansie1712, on Flickr
Last edited by Deano1712 on Sat 10 Mar, 2012 11:08, edited 1 time in total.
Z3M with a few mods...and a little bit more power

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CP00black
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  Z3 roadster 2.0

Post by CP00black » Sat 20 Nov, 2010 21:26

This is a very interresting thread. Keep posting! I wish I had the time and skill..
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Z3Rude
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  Z3 roadster 2.8
Location: Loch Lomond

Post by Z3Rude » Sun 21 Nov, 2010 18:16

Very good read indeed. Very impressed sofar :)

CP00black wrote: I wish I had the time and skill..
And cash :(
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rgf
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  Not specified
Location: York

Post by rgf » Sun 21 Nov, 2010 18:34

You will have to get a wriggle on Mark to have it ready for the Xmas lunch on the 5th!!
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Deano1712
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  M roadster S50
Location: Leeds

Post by Deano1712 » Sun 21 Nov, 2010 21:37

rgf wrote:You will have to get a wriggle on Mark to have it ready for the Xmas lunch on the 5th!!
It will be close to finished Roy but its not seeing the road till Spring now. Its SORN and I have the brakes to sort out and it needs a re-spray etc etc. I will arrange a meet in April so you can all see the car.

Progress is a bit faster now, as I mentioned. Pics show how it is after a few hours work this weekend. Remaining jobs are power steering hoses, fit driveshft, exhaust and wiring. Oh I also have to mount the accelerator pedal and find a way to get the harness and connector through the firewall.

My new wheels are now made and are in transit to should get them within the week :D
Image
DSC02428 by deansie1712, on Flickr
Image
DSC02426 by deansie1712, on Flickr
Image
DSC02425 by deansie1712, on Flickr
Image
DSC02427 by deansie1712, on Flickr
Last edited by Deano1712 on Sat 10 Mar, 2012 11:11, edited 1 time in total.
Z3M with a few mods...and a little bit more power

billz
Joined: Mon 22 Mar, 2010 20:09
Posts: 1240

  Z4 roadster 3.0si
Location: nottingham

Post by billz » Sun 21 Nov, 2010 21:57

Thats looking awsome now mark. Think i will end up burning more than my brakes trying to keep up on the next Yorkshire cruise :lol:
bill
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markrnorton
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  Other roadster
Location: Essex

Post by markrnorton » Sun 21 Nov, 2010 22:09

Nice

what radiatorhave you used Mark ?
Still modifying

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Deano1712
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  M roadster S50
Location: Leeds

Post by Deano1712 » Sun 21 Nov, 2010 23:38

markrnorton wrote:Nice

what radiatorhave you used Mark ?
Its the standard radiator. Most E36 swaps seem to reuse the standard radiator so I think it will be ok. I need to buy a lecky fan for it - Im looking out for a secondhand Volvo V70 unit.
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c_w
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  M roadster S50

Post by c_w » Mon 22 Nov, 2010 12:06

Are you going to get a Corvette engine cover to neaten it all up? Will look very smart with a cover on!

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Jonttt
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  M roadster S54
Location: Liverpool

Post by Jonttt » Mon 22 Nov, 2010 14:32

Looks very heavy to me, I'm sure it will slow you down :twisted:

Lookin great, can't wait to here it in action, try and take a vid of the first turnover if you can, will be worth capturing on film ;-)
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Deano1712
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  M roadster S50
Location: Leeds

Post by Deano1712 » Mon 22 Nov, 2010 18:14

c_w wrote:Are you going to get a Corvette engine cover to neaten it all up? Will look very smart with a cover on!
It will look neat but I fancy somethink chrome, rather than plastic and 'Corvette'. Last time I looked the car wasn't a Corvette! I found a local supplier that can chrome plate stuff. Watch this space :wink:
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c_w
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  M roadster S50

Post by c_w » Tue 23 Nov, 2010 11:36

Deano1712 wrote:
c_w wrote:Are you going to get a Corvette engine cover to neaten it all up? Will look very smart with a cover on!
It will look neat but I fancy somethink chrome, rather than plastic and 'Corvette'. Last time I looked the car wasn't a Corvette! I found a local supplier that can chrome plate stuff. Watch this space :wink:
Hehe yea I know, I'm sure the Corvette logo could be altered? With that done it'd look "factory".

maurice the martian
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  Z4 roadster 3.0i
Location: mars

Post by maurice the martian » Tue 23 Nov, 2010 14:04

Deano wrote-
( I will arrange a meet in April so you can all see her.)
APRIL 29th would be a good date,all the saddo`s will be in watching the royal wedding,so the roads will be clear for us.
So the choice is, spend the day admiring Deano`s new creation,and listening to the roar of that beast ,or stay in brain dead watching that crap on the telly :puzzle:
Maurice

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markrnorton
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Location: Essex

Post by markrnorton » Tue 23 Nov, 2010 18:23

Good job so far Mark . What's the final drive on your gearbox like? Mine is loooooong !
Still modifying

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Deano1712
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  M roadster S50
Location: Leeds

Post by Deano1712 » Tue 23 Nov, 2010 19:14

markrnorton wrote:Good job so far Mark . What's the final drive on your gearbox like? Mine is loooooong !
Loooooooooonnnnnnggg! It will v max in 5th at 186 according to Cartest2000. 6 is a cruiser 1700rpm at 70mph. If it's too long I'm gonna change the diff to a 3.7 or 3.9. Does urs have a slippy diff ?
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rgf
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  Not specified
Location: York

Post by rgf » Tue 23 Nov, 2010 19:27

maurice the martian wrote:APRIL 29th would be a good date,all the saddo`s will be in watching the royal wedding,so the roads will be clear for us.
Excellent idea Mr Martian!!
Can we have another on Xmas day for fellow bah-humbugs as well?
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pingu
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  M roadster S50

Post by pingu » Tue 23 Nov, 2010 19:33

c_w wrote:I'm sure the Corvette logo could be altered?
How about COR

Or even COR BLIMEY

:D

Looking impressive - not jealous at all :wink:
Pingu

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TrickyZ1
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Post by TrickyZ1 » Tue 23 Nov, 2010 21:16

maurice the martian wrote:APRIL 29th would be a good date,all the saddo`s will be in watching the royal wedding,so the roads will be clear for us.
So the choice is, spend the day admiring Deano`s new creation,and listening to the roar of that beast ,or stay in brain dead watching that crap on the telly :puzzle:
Maurice
Great idea Maurice :thumb:

Mark, the conversion is looking awesome - bet you can't wait to test her out :wink:
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markrnorton
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  Other roadster
Location: Essex

Post by markrnorton » Tue 23 Nov, 2010 21:16

Mark
My diff isn't sloppy, but I need either a 3.25 or 3.45 LSD to be drivable . My 5 speed tremec has good ratios but 5th is an O/D at 0.62
Still modifying

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Deano1712
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  M roadster S50
Location: Leeds

Post by Deano1712 » Tue 23 Nov, 2010 23:02

markrnorton wrote:Mark
My diff isn't sloppy
that's good Mark there is nothing worse than a sloppy diff :lol:
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Hard Top
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  Z3 roadster 1.9
Location: Netherlands

Post by Hard Top » Tue 23 Nov, 2010 23:24

Gentleman, your threads on the mods that you are doing to your cars makes for fascinating reading.

Just having seen Z3Rude's post about the BMW 850 with a 5.6L V12, just out of interest, do you think that engine would fit into a Z3?

Sorry if its a daft question. :oops:

There is a chap over here transplanting a V10 into a Z3 Coupe.

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c_w
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Post by c_w » Wed 24 Nov, 2010 09:55

Deano1712 wrote:
markrnorton wrote:Good job so far Mark . What's the final drive on your gearbox like? Mine is loooooong !
Loooooooooonnnnnnggg! It will v max in 5th at 186 according to Cartest2000. 6 is a cruiser 1700rpm at 70mph. If it's too long I'm gonna change the diff to a 3.7 or 3.9. Does urs have a slippy diff ?
I reckon that will work, the engine makes monster torque from idle so it'll cruise at 1700rpm at 70 no probs IMO! Your average TDI will be sat only just above that with less lb/ft.

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Deano1712
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  M roadster S50
Location: Leeds

Post by Deano1712 » Thu 25 Nov, 2010 12:19

UPS showed up today with an early Christmas present :D

CCW seem to have done a good job, wheels ordered manufactured and delivered from Florida all within 16 days. They must have made an error with the value on the import paperwork since the duty was about half what I was expecting :D

Fronts 18x8.5 rears 18x11

Enjoy...
Image
DSC02432 by deansie1712, on Flickr
Image
DSC02431 by deansie1712, on Flickr
Image
DSC02433 by deansie1712, on Flickr
Image
DSC02435 by deansie1712, on Flickr
Image
DSC02434 by deansie1712, on Flickr
Last edited by Deano1712 on Sat 10 Mar, 2012 11:13, edited 2 times in total.
Z3M with a few mods...and a little bit more power

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Daz3
Joined: Wed 15 Sep, 2010 20:57
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  Z3 roadster 2.8
Location: Spilsby

Post by Daz3 » Thu 25 Nov, 2010 12:30

wow them wheels look 8-) bet they'll take some cleaning though. Just read through this thread the other day and the conversion work you doing looks fantastic keep up the good work and us posted.

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PooBear
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  blank.gif
Location: Ipswich

Post by PooBear » Thu 25 Nov, 2010 12:32

So is this no longer a Z3 and is now a kit car :)
Last edited by PooBear on Thu 25 Nov, 2010 14:11, edited 1 time in total.
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aceman
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  M roadster S50
Location: Wakefield

Post by aceman » Thu 25 Nov, 2010 12:42

c_w wrote:I reckon that will work, the engine makes monster torque from idle so it'll cruise at 1700rpm at 70 no probs IMO! Your average TDI will be sat only just above that with less lb/ft.
My STR does 70 @ 1700rpm too which with the autobox is just over what it does around town as the box seems to keep the revs around 1400-1500 when pootling around.
Aceman

Arctic Silver '98 Z3M

Previously;
Bright RED '99 Z3 2.8

Rocking seats ? You need seat bushes click HERE

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c_w
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  M roadster S50

Post by c_w » Thu 25 Nov, 2010 17:05

STR?



Nice wheels!! What's the offsets? You getting some decent suspension aren't you? I know you recently refurbed the OEM suspension but you'll need to get it to look and handle right with that engine and those big wheels!

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Deano1712
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Location: Leeds

Post by Deano1712 » Thu 25 Nov, 2010 17:27

Rears are 11x18 ET18 and will be getting 295/30 rubber. Dont worry about my suspension I have plans :wink:
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Titan
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  Z3 roadster 2.2i
Location: North Yorkshire

Post by Titan » Thu 25 Nov, 2010 18:18

Lovely wheels Mark although I dare say some may find them a bit "bling" :shock:
Good job they won't fit Tim's car otherwise he'd be after them :oops:
Image :devil:

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