5 replies to this topic

[Philtrum]

Hi

I have a metro 12HC 01AA engine in my mini, and its running 13" wheels

Im trying to identify a number of things and struggling so any help is greatfult

the things Im struggling on are

Diff ratio
Compression Ratio

Im sure the speedo is out and I need to know what the diff is etc to try and get the right conversion

the engine has a LCB and full large bore exhaust system, K&N cone type filter and runs sweet but as always, a bit more power would be nice, are there any "quick wins" that I can do to get a bit more go ?

Many Thanks
Phil

[Jammy]

Are you sure its a 12HC? If its a 12HG01 then it will have a 10.1:1 C/R, a 3.11 diff and a catalyst.

Have a look here for an explaination of engine numbers.

[Philtrum]

Thanks mate for the reply, its definatly a 12HC

found it listed on a few sites, but no detail

cheers
Phil

[Philtrum]

just found this site ....

http://www.mgcars.or...ws/news498.html

it lists the 12hc and loads of others .... unfortunatly it still does not give me any details

any help is greatly received

Cheers
Phil

[Dan]

Someone else was looking for this exact same engine just a few days ago.

Turned out to be a 9.75:1 CR lump from a Metro HLE (E for economy meaning it has the 'economy' final drive).

I should say that it wasn't me who found this info the first time round though :sad: .

[Philtrum]

Dan

thanks for the info, the CR is better than I thought ... had a feeling it was going to be a real low compression job

any idea where I can find info on the ratio's etc ? (looked on google ... no joy)

I've looked for the other thread you mentioned and cant find it (in case the info was on there)

Cheers
Phil