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Bmw 16v K1200rs Head Conversion 1380cc Block


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#16 mini_nutz

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Posted 26 October 2010 - 09:49 AM

coming along now
so your not opting for dry decked then if you already had the head skimmed


Nope not going for the dry deck option, dont really see the point as i dont do that many races as its my weekend car. At the end of the day if your head gasket goes in a race or the road you still have to replace it & at 150 quid a pop, i dont intend to go through any. I guess there is cooling advantages with the ability to get more water and oil in and out again but still dont see the point, in unnecessary cost for dry decking it. Unless there is something im missing out on???


I am sure its the other way round, if you dry deck it you can use a standard gasket like the bk450, if you dont you have to use the expensive gasket, put a post up on EFI as i may be wrong.


mmm... I dont know how you could use a standard gasket as all but 3 studs are in the wrong location. I dont fancy drilling new holes into a gasket, plus most of the new stud holes will collide with old stud holes which could enable the gasket to move about which in turn could cause all sorts of havoc.

#17 patlink

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Posted 30 October 2010 - 06:03 PM

yes with dry decked you can use BK450 just needs a few extra holes :thumbsup:

#18 wolfie

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Posted 30 October 2010 - 07:02 PM

thought that was the case

You need to add EFi minis forum to your links, there is more poeple with the bmw 16v and 8v conversion on efi than any forum on the interweb

http://www.efiminis.olicentral.com/

Morespeed are not trading as far as anyone knows as well

Edited by wolfie, 30 October 2010 - 07:03 PM.


#19 mini_nutz

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Posted 31 October 2010 - 08:09 PM

Hi everyone,

Just a little update with this weekend's progress. Im still waiting for the aluminium engine and gearbox cases to be hot dipped, so i took the chance to strip, bead blast and rebuild the throttle bodies.

A few pics.

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My SC ram pipes wont slide all the way onto the throttle bodies. Has anyone else experienced this problem? What is the fix?

Next weekend I hope to rebuild the gearbox.

Warren

#20 mini_nutz

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Posted 21 November 2010 - 10:40 PM

Hi All,

A quick update on progress.

Following my last post I spoke to John at SC and found out that I had the K1100 ram pipes not the K1200, John was kind enough to exchange them for the correct ones. Apart from that things have not been going my way recently.

I fully rebuilt the gearbox last weekend, only to find a hairline crack in the front of the case near the top where it bolts to the block. Like most mini enthusiasts we all have a spare engine or two sitting in the back of the garage waiting for the day you blow up your engine! After dismantling both gearboxes and spending several hours preping and cleaning up the spare, I found yet another crack this time in the central web #*^%!!!!!! . Scrap Aluminium anyone?

Back to my original box to check out the damage, I took the dremel to it and it went all the way through the box. I Decided that as its in a non-structural place I would weld it up. I doubt any mini gearbox is 100%, the castings are not the best quality I have ever seen but it is a 40 year old design.

As I was unable to complete the gearbox I spent the week building up the head, ready for installation onto the block. I also placed my order with MED for the final parts to complete the build. Currently on order are my crank, rods, pistons, flywheel, clutch and bearings etc... Spec to follow when they arrive. Keep checking back for updates.

Now for the pics...

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#21 mike.

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Posted 22 November 2010 - 02:08 AM

That is porn! I love these conversions

#22 J_1275_O

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Posted 22 November 2010 - 10:22 AM

Ive been wanting to do this , after seeing yours i think ill be doing it now .

Looks immense mate!!

#23 afoggo

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Posted 24 November 2010 - 03:23 PM

im also very interested in doing this conversion, im loving how clean all the parts are! :D

looks great so far mate!

#24 clambert81

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Posted 24 November 2010 - 03:50 PM

Here's what it looks like in the engine bay. this was built by SC for me.
Posted Image

Posted Image
Everything is very tight.

#25 mini_nutz

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Posted 25 November 2010 - 09:53 PM

That looks awesome, how long till its going to be on the road? What is the eninge spec? I didnt think it would be that tight. I cant wait to get mine all up and running. :thumbsup:

#26 clambert81

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Posted 26 November 2010 - 09:32 AM

This was built for me by Specialist Components. It is a K1100 16v head on a 1380 block with the SC rods. Crank has been wedged and bladed. Lightweight flywheel and turbo clutch and uprated diff. Estimated power is 130+. top speed is in excess of 125. When I got the engine in with the pipes on they were resting on the bulkhead. the gap between the ram pipes and inside of the front slam panel was 8mm! Everything is tight in there. you'll also have to cut away the bonnet rib or it will foul on the cam cover.
I'm hoping to put it on the road early next year as I'm not taking it out in the salt. Tried to start it last weekend but the fuel pump was dead, just waiting for an uprated one to arrive.

Edited by clambert81, 26 November 2010 - 09:35 AM.


#27 mini_nutz

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Posted 29 November 2010 - 08:29 PM

Hi all,

A quick update. My new components to complete the engine build have arrived from MED.

MED 16v 73.5mm Omega Pistons with 7cc dish.
MED 81.3 mm Reground, Ni – Temp, X-drilled, Wedged & I.C.E Crankshaft
MED Conrod Set
MED U/L ST2 Clutch + Orange Diaphragm
MED 1:1 SC Drop Gears

Piccies:

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#28 mini_nutz

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Posted 04 December 2010 - 07:06 PM

Does any one know where I can get a standard "thin" 998 A + mass damper from?

#29 patlink

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Posted 08 December 2010 - 06:09 PM

may have one in the garage will look over the weekend

#30 mini_nutz

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Posted 09 January 2011 - 07:01 PM

Happy New Year everyone,

What an exciting year this one will be :shifty: , Im hoping that by March the engine will be fully built and installed ready for Brooklands.

Santa brought me a great present this year, a complete Ignition System and ECU from SC. :gimme:

The Kit includes:-

SC Typhoon ECU
SC Road spec wiring harness with air temp sensor
SC Crank Trigger Kit including sensor
SC USB PC interface with tuning software
A-series coil, coil bracket & HT leads

The block is currently back at the Engineering shop being skimmed to deck this pistons. I hope to collect this in the next few weeks and crack on with the build.

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