45 replies to this topic

[mini-man14]

Hi you all...

 

Does any of you guys have any experience wit this kind of engine? ( link below )

like: woud it fit to a force racing titanium front subframe or not?

Would it stick out like in the second picture?

Wich gearbox could it fit to it?

thats pretty much it :)

 

 

link:  http://www.twinkam.c...=12&aid=SCE002

 

 

it's a bad picture but you can se what's going on wright ;)

 

Thanks for everything, Jure

[nicklouse]

Any mini gearbox. But which one and gear set it up to you.

Standard subframe mounting.

[Ethel]

It's a normal  Mini engine with a BMW motorbike head, so no different.

[mini-man14]

It's a normal  Mini engine with a BMW motorbike head, so no different.

Wait a second there, what do you mean with > BMW motorbike head<?

[nicklouse]

Yes that is a BMW cylinder head on a Mini block.

Been done for years and years.

[69k1100]

http://www.lojomo.com

This guy supposedly pioneered it in the late 80s.

[mini-man14]

ok guys is the engine any good and reliable?

[nicklouse]

It is just a Mini engine.

So maybe. But most will be down to how you use it and maintain it.


I bet that race car has a spare engine and they are swaped often.

[Artstu]

It looks like a lovely place to live. 

 

Edited by Artstu, 08 December 2014 - 10:00 AM.

[Alex_B]

The twin Kam conversion is one of the better ways to make power from an a-series. The standard head is asthmatic at best so by fitting a BMW k-series (k1100,k1200,k1200rs) head to it which breathes a lot better you can get more power from the engine. Generally speaking on a 1275 you can get about 120 bhp provided you work on the rest of the engine. 

The main issue I found with this engine is cost, I was seriously considering it (and still am to a certain extent) but you are looking about £1000 in gearbox bits so it can take the power, and probably won't be left with much change from £3k for the engine including all the machining and components. But it tends to be a more reliable way to get more than 100bhp from the a-series. Other options is a race prepped engine - mini miglia engines produce about the same power but only last a season of racing and the likes of swiftune charge £20k for one of those. Then theres forced induction and more likely turbo for the same sort of power but that comes with its own costs and complexities. 

[megamini_jb]

My dad is half way through this conversion with his mini. Progress has slowed right down at the moment though

[Ethel]

There are other options, such as the purpose KAD 16 valve head, that won't need as much modification to the block. I can't see adding forced induction to a 16 valver being cost effective. You can put a blower on a standard 5 port head and push out the same sort of power to stress the transmission and bottom end just the same.

[Alex_B]

There are other options, such as the purpose KAD 16 valve head, that won't need as much modification to the block. I can't see adding forced induction to a 16 valver being cost effective. You can put a blower on a standard 5 port head and push out the same sort of power to stress the transmission and bottom end just the same.

I wasn't talking about adding forced induction to a twin-kam head, I was comparing the power gains of the twin-kam is similar to the forced induction route. 

[Ethel]

The OP linked to a supercharged SC engine kit.

[Alex_B]

The OP linked to a supercharged SC engine kit.

Ahh my mistake!