is the head ontop of that kit?

How much does the head go for 8/16V varieties?

and does this kit fit a small bore or is it 1275+ only?

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Starlet Conversion:
http://www.ausmini.com/forums/viewtopic.php?t=15484

yeah, the mods to the block are not hard at all,,, pretty easy actually

There really isn`t much to the job once you have the cyl head, the fitting kit, the mods done to the block & sort whether you`re going turbo or naturally asspirated for the sake of what pistons you use & then you have the rest as a std issue rebuild

ok, so then you have extractors to make , an oil filler & oil drains to sort (that`s not hard tho) & then a computer to buy, wire up & tune, but still you can run these engines on bike carbs from the bike wreckers & a normal mini distributor if you want a cheap way out for the time being

i just bought a full set of bike carbs (set of 4 inline 38mm CV carbs with linkages etc etc) for $48 on e-bay, slight mod & they will be a goer

& yes it does work on a small bore &/or a 1275,,, just that the bore spacings are allready close to a 1275 , but the small bore will need some offset & oversize boring to make it work

same work elswhere in the engine tho

You can buy your own cyl head from the bike wreckers((( if you can find them))), or you can buy one from me (i only have 19 of them now)

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

so all the machining would only cost a couple of hundred bux wouldnt it? how about the head studs? being a similar sized engine they would be close wouldnt they?
Thanks Miniman great info

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Matt,
What sort of power would you estimate on a 998 and 1275 with an 8valve head and some good compression? That is, standard bmw cams and head.

Might have sourced one and thinking about doing it over a supercharged 998 setup...

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Mini - The Wizardry on Wheels!

well, the stock 16v 1100cc bikes have 100hp so, bolt one onto a 1275 & you should have an easy 120hp+,,, smooth,,, not rough & lumpy like the average hot mini engine,,, then plumb a turbo or super charger onto that & the world is your oyster & only up to how much money you want to spend after that if you want more.

There are quite a few guys overseas now claiming well over 200hp from these things
I`m not letting my cat out of the bag just yet, we have more grunt comming

i`m also building a 998 turbo 8v for myself to play with so i`ll keep you all informed of it`s progress, but i can`t see a problem with 120hp with 8-10lb boost & obviously more power avaliable if you`re keen to throw some hi flow stuff & big boost to it, & would spin up nice & smooth to... A real buzz box

Machining costs will vary depending on who you have do it, but block surface mods, bung up some holes, re-drilling head stud holes, making up a water outlet & thermostat hsg assy , a few oil drains & an oil filler isn`t going to cost an arm & a leg.

I`m making up my kit with the intention of having a L/H engine steady bar braket incorperated into the front cyl head plate & also a top radiator brkt too, i`m also thinking about sorting all the thermostat & water outlet & oil filler into the kit as well,,, but i really am focusing on just getting the main parts of the kits done first.

I have an 8v head on e-bay right now if anyone is keen

there`s only 8-10 hp difference between the 8v & the 16v ,,, BUT!!!! the 8v version is a 1000cc engine & the 16v is from an 1100 so the heads are not that much different in flow capability & not only does the 8v cost less but is far more avaliable & way way cheaper to overhaul when needed

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

Matt, rumour has it the K100 motors rotated anti-clockwise- is this true and if so how could you run the stock BMW cams when on a Mini donk?

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

yes it`s true Doc, the cams are concentric tho, so they are same fowards or backwards,,, good hey???

& all you do is swap 2 ign leads around 2 fix the firing order & drive the car away

job done

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

to anyone wondering about all this info,,, & to all those e-mailing & PM-ing me with all these types of questions, i am printing up a conversion guide to go with the fitting kit , so all the info will be there with quite a few different ways of doing all the fiddly bits.

it really is quite an easy conversion & very very good value bang for buck

If you concider trying to squeeze HP out of an A-series cyl head with big lumpy cam & weber or twin carbs & all the related go-fast stuff, you`ll find that a Bimmer Twinky conversion is very similar in money/costs but far far outweighs any extra in it`s smoothness, power & economy , not to mention your sanity

just go ahead & cost up a big go-fast A-series cyl head with new stainless valves & big ports, hot cam, big carbs & manifold etc, & then you still won`t have 120hp & even if you did, it`d be lumpy rough & loud & not very economical & definately not very road drivable,,, Twinkys are allready showing over 150hp without being force fed & well over 200 with a pump

these Bimmer Twinkys run just like the motorbike,,,smooth clean, quiet & efficient.

It`s seriously chalk & cheese

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

Hey Matt,

How do the 8v and 16v heads compare to an A-series as far as combustion chamber volume? Are pistons available to get the right compression ratio for a nat atmo?

M

So if you wanted to fuel injection on one of these suckers how hard would it be ????

The price of the conversion kit is the only thing holding me back. I'm struggling to find a way to put money aside for yet another tasty toy.

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[NATHAN] -- Sold everything mini related and am back in big beautiful BMWs

From memory, Matt's site (currently down - come on, pay the hosting fees Matt! Use your down time wisely ) said that the bike engine originally was injected, so one of the engine's he has running is using that injection system, controlled by an Autronic computer.
Matt posted here: http://www.turbominis.co.uk/forums/inde ... 8743&fr=50 about combustion chamber size. Seems there are a couple of variations with the head. He's specified anywhere from 19 to 28cc. Which I'd guess means you could try and find one to suit your application - atmo or FI.
Wait another 5-10 years and I don't think there'll be too many really hot Minis running around with A series heads... Probably partially because "really hot Mini" will be redefined! We probably won't see too many BMW bikes running either!
I think you'll save a few questions if you get that site running again Matt!

It's not hard to put EFI on any conventional engine that has one intake port per cylinder. There are many workshops who would be able to do the set-up for you saving you from having to learn everything from scratch.

The major limiting factor for EFI is cost. For a decent set-up you would be looking at around $3-6k depending on what you bought for computer and assuming you had nothing to start with. It would cost at least 4-500 for the injectors alone, then add pump/filter/rail/puter/wiring/throttle body/etc nd you will soon see where the money is going. Buying SH parts is asking for trouble.

There are many side benefits though such as correct ignition timing across all load/speed ranges and fuel economy(with the right ECU).

Regards

Daniel

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Videos - Turbocharged A-Series on Dyno & at Wakefield
Mafs waz not my strong subgeckt at skkol

i bought a 16v head from matt a while ago, it came with quad throttle and injectors etc. so all we have to get is a computer and a pump
i hope the kits ready shortly because my car gets painted in a couple of weeks

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real men race downhill - keiichi tsuchiya

The cyl heads all come with the quad throttle bodies, injectors, TPS, fuel rail & fuel reg etc , you just need a computer & some wiring up & a high pressure pump & a slight mod to your fuel tank sender unit for the return line, or alternatively you can just buy a late injected type mini fuel tank with the pump & return line allready in there & then just bolt it in,--> easy-peasy

look here for a pretty full list of what to do to the donk for
the whole engine conversion--->

http://www.users.bigpond.net.au/TheMiniMan/page2.html

it all really is straight forward & there are soooo many people doing them now it`s not funny, Ivan Tighe has one at his shop & i know of quite a few more being built as i type this, soon they will be everywhere

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.