7 port heads
Turbo Mini Forums

Hi guys, when mini sport say bare machined casting for £945 (+vat) what do they mean by bare?? straight out the melting pot and in your shopping trolly? or have the done somthing to the casting?

Thanks
Alex.

I would say, casted and machined all surfaces. without valves, springs and other addons

But all holes drilled and taped?

yes all the holes drilled and taped and the faces machined.

hers some pics of mine as it turned up,







Stuart Gurr built my head up for a very reasonable price. It worked out considerably cheaper than buying a built one from Minisport.

Edited by Joe C on 17th Mar, 2007.

arrr right much less bare than i was thinking. Thought i would get a good slap down at morspeed if i took him a bare casting... that at least has a place to start very simliar to modding an orginal head. right who wants to give me £1000?

Alex, I only have one question....
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Why???????

Injected 5 port isn't far off and the K head conversion isn't a bad price and flows very well.

I am not being negative .... I am just interested in the reasons for wanting to go the 7 port route ..... does it have exceptional flow figures etc?????

I am interested as I know nothing about the 7 porter

Every day is a school day ...........

How fast and how expensive ...... the same question...

I like it cos it is as close to an arden 8 port as i can find. Its old school tuning, just has an apeal to me.

you could just buy an Arden, they still make them.

Thats a big chunk of money....

I do still love the idea of the 7 porter. Not Alex's words, but why I think I would go for a 7 porter.

1. It is a shed load less work than k conversion. and are more charming.

2. who cares that the 5 port code is on its way, a 5 porter will never flow like a 7 port crossflow. (well I do care that the 5 port code is on it way.)

Ben

http://www.twin-turbo.co.uk
http://www.hillclimbandsprint.co.uk/default.asp

A man without a project is like a like a woman without a shopping list.

I like them for similar reasons, its a fairly simple upgrade for someone running a 5 port as the exhaust side of things doenst change at all.

Still doing a K though :p

all this 7 port interest at the moment has got me thinking about pulling out my clubman and popping one on there....

Fairy snuff.

It just seems to be a lot of money for little gain IMHO ........ unless the inlet flows significantly better.

Every day is a school day ...........

How fast and how expensive ...... the same question...

Perhaps i should chuck mine on a flow bench before i bolt it down, anyone got access to one?

Mite know a guy. I'll check with my mate to see if they have one. I know they have a Hunter rig, the mini is going on that come april. get my camber putting in abit.

Right spoken to my mate a Ricardo and he says that when the engine is on forced induction the advanges of a crossflow head decrese and a well ported 5 port should be on pare with a good 7port as the forced induction over comes the short commings of a 5 port head. However on a NA engine there is no question a 7 port will be much better.
a guy he knows has a flow simulator which mite be able to work it out, there is a flow bench at the uni he mite be able to get the head on if you want the cufuffe.