mk1-forum.net

Hi Guys
Fairly new to the forum, so hello, first up.
So as the heading says, After some of your input on the 7 Port alloy Crossflow head thats advertised on Ebay USA.
Here in Australia they refer to it as a Pierce Head but I have seen the same head advertised from MED to their specs.
I am looking to use it in a race application only in a Mini Sports Sedan.
Any information and input would be greatly appreciated.
Great forum buy the way.

Thanks

Ian

My understanding is that Pierce sell the bare castings to a load of different suppliers who then work varying levels of magic on them before re-selling them. Although you'll see several suppliers selling the same head, they come with different levels of assembly/parts and some are a lot better developed than others. Thats why some are a lot cheaper than others.

Tim

Hi Tim
Thanks for the reply, I have just sent Pierce an Email to see if I am able to purchase one without valves etc. so I am able to modify it to my specs. to suit me.

Thanks
Ian

Ian, have you seen this thread on Ausmini, http://www.ausmini.com/forums/viewtopic.php?t=64885? It may have some information thats pertinent, if you can wade through it (same could be said about Ausmini as a whole really).

Tim

The specialist components alloy X flow 7 port looks like a FAR better bet to me. I have heard a few (actually quite a lot) of horror stories regarding the pierce castings.

http://www.twinkam.co.uk/shop/article_S ... 216.001%26

A mate of mine is getting close to 180bhp using one of these heads.

mk1 wrote:The specialist components alloy X flow 7 port looks like a FAR better bet to me. I have heard a few (actually quite a lot) of horror stories regarding the pierce castings.

http://www.twinkam.co.uk/shop/article_S ... 216.001%26

A mate of mine is getting close to 180bhp using one of these heads.

With a turbo? A bit puzzled you'd say this Mark, as this is not exactly a period piece

mk1 wrote:The specialist components alloy X flow 7 port looks like a FAR better bet to me. I have heard a few (actually quite a lot) of horror stories regarding the pierce castings.

http://www.twinkam.co.uk/shop/article_S ... 216.001%26

A mate of mine is getting close to 180bhp using one of these heads.

Yes, I was going to ask this? Turbo? must be at least on throttle bodies, on who's rolling road?

I've seen a couple of examples approaching 160 NA.

Both, turbo & Injection. Not sure who's rollers, but the figure is very realistic & its from a 998 too!

A bit puzzled you'd say this Mark, as this is not exactly a period piece.

What Lisian was asking about the pierce 7 port, its hardly "old school" is it. I was simply offering what I consider to be a better bet than that.

mk1 wrote:A bit puzzled you'd say this Mark, as this is not exactly a period piece.

Wjy Lisian was asking about the pierce 7 port, its hardly "old school" is it. I was simply offering what I consider to be a better bet than that.

It wasn't critisism, just a joke

mk1 wrote:Both, turbo & Injection. Not sure who's rollers, but the figure is very realistic & its from a 998 too!

Now that is some serious power out of a thou.

I'Ve got to say, I have nothing but good news about that 7 port. I had/have a MED developement of the pearce casting and must say the performance considering it was a straight bolt on (bar the water pipe) was unbelieveable. And it had a nice 5 port on before hand.

I'm not just saying that because I am selling it (I ended up returning to classic rallying), it really was something else. It even kept its cool too!!

And as for the intake roar.....sound better than most MK2 escorts I've heard.

Sorry Vegard,

Lost in translation

Ok, a bit lost on some of the tangents but here goes.
Mk 1, You have one for sale you say?
I'm not really after the " Period " type look as such, Just looking at changing my Class.
What I really want to do is chase and knock off our Hybrid Class which consists of, Honda Vtec and 4AGE twin cam engined Mini's.
I'm really an A Series guy through and through I guess.
I figure I need to build around 180HP at the engine,wave my cylinder head magic wand in the shed on it, good handling, and hope for steering talent on my part.
All within a budget, hopefully
Thanks

Ian

Also'
Maybe a half decent S/Hand 8 Port wouldn't go astray, if I could find one at the right price?
Any ideas from over your way at all guys?

Thanks Again

Ian

I do not have an SC head for sale, I just think it's a better bet than the Pierce one.

If you are looking to compete against 16 Valve A Series & Mini / Honda Hybrids then you will need to do some serious thinking. The engine I refer to above is a 998 A series running an SC head & fuel injection, it would be a fairly reliable way to make this sort of power, but I suspect it will still struggle against the sort of competition you are talking about.

Reliably, getting in excess of 200 bhp (which is what some of the hybrids have) is in my opinion more or less impossible using an A series block & gearbox.

Sorry
Got the names wrong, I looked back through, was Mk1 Rally who was referring to his MED/Pierce head I think

I've pm'd you.

mk1 wrote:
Reliably, getting in excess of 200 bhp (which is what some of the hybrids have) is in my opinion more or less impossible using an A series block & gearbox.

Reliable, excess 200hp, A-series. Pick any two

Hi,

Found this one in youtube. Very close.

http://www.youtube.com/watch?v=Qxbccnfhrgw

Cheers,

Rui

Pretty sure thats the mini marks on about, will_h's 998 Turbo 7 port.