12 replies to this topic

[preston-pill]

hello, just wondering if anybody knows a rough spec for twin weber 40's on a 8port head.. should probably be the same as the akm 7 port heads i imagine!
basic engine spec..

1380cc
286
med 8 port head (21.5cc) (not the arden or westlake)
compression ratio 10.75 to 1

just asking as im buying a set of new 40's and i want them sum bit like for getting it running with out killing my new motor as its not run in yet! its just to avoid bore wash or being too lean before it goes on the rollers

Edited by preston-pill, 09 August 2008 - 03:36 PM.

[JetBLICK]

Soz... off topic and no help whatsoever, but when did MED finish their 8-port? last i heard they where making it into a 7-port because their exhaust ports on the 8 port version where appalling. We need answers...

[preston-pill]

Soz... off topic and no help whatsoever, but when did MED finish their 8-port? last i heard they where making it into a 7-port because their exhaust ports on the 8 port version where appalling. We need answers...

appalling? im guessing you'v seen one then? im guessing not.. they made less than a handfull apparently.. most of them went to japan.. they decided to put the 7 port into production as it proved to expensive to produce the exhaust manifolds for a decent price for the 8 port ( below £400ish quid) which im sure most people wouldnt be willing to pay so they decided to go for the 7 port so it can use a standard lcb making it a more affordable product..

Attached Files

•  IMG_2479.JPG   596.04K   22 downloads

[preston-pill]

they put one of these on a 1380 (standard throw crank) and on fuel injection and i it produced 157bhp on the rollers and over 160 lbft which didnt sound appalling to me..

Edited by preston-pill, 10 August 2008 - 12:56 PM.

[preston-pill]

they put one of these on a 1380 (standard throw crank) and on fuel injection and i it produced 157bhp on the rollers and over 160 lbft which didnt sound appalling to me..

Attached Files

•  IMG_2473.JPG   608.39K   17 downloads
•  IMG_2475.JPG   630.5K   17 downloads

Edited by preston-pill, 10 August 2008 - 12:56 PM.

[8portdave]

hi mate the thing on this site is there are so many dreamers and not many doers so fair play mate you just do it. I have just sripped my engine for a rebuild and more power gane i can have a look what jets i got in my carbs and let you know mate if you want i can pm you my number and you have have a chat with me i can also supply you with the jets from work let me know cheers dave

[preston-pill]

cheers dave, its refreshing to actually have a reply from someone who actually knows what he's on about.

[8portdave]

no prob mate dont let them get to you lol

[Jammy]

Off topic posts deleted. Please don't post unless you're answering the question the poster has asked!

[Dario]

This head looks interesting. I was thinking to buy a Minisport 7 port head but I think this is a very good alternative. Please can I have more information about the Med 8 port head from someone that have it? Ports have the same lenght? Is it a good head or are better the 7 port or the "Arden"?

[JetBLICK]

Soz... off topic and no help whatsoever, but when did MED finish their 8-port? last i heard they where making it into a 7-port because their exhaust ports on the 8 port version where appalling. We need answers...

appalling? im guessing you'v seen one then? im guessing not.. they made less than a handfull apparently.. most of them went to japan.. they decided to put the 7 port into production as it proved to expensive to produce the exhaust manifolds for a decent price for the 8 port ( below £400ish quid) which im sure most people wouldnt be willing to pay so they decided to go for the 7 port so it can use a standard lcb making it a more affordable product..

Oi Behave! Steve showed me and a mate the 8-port first hand when we where there last october, when he said to me it was a 'prototype'. He was also the one who said to me that he didnt like the exhaust ports becasue of the way they where shaped - which on said 'prototype' was a bit like a swan neck inlet. He may have changed them since then, i dont know. But he said to us that he was changing them to 7-ports because he didnt want to change the valve positioning like the ardens.

Dont get so defencive, i was simply asking a question, because as i say, the last time i spoke to him he was binning the 8-port idea.... ya' burk

To be honest i think there'd more potential with the 7-port version, it doesnt matter how much work you put into porting those exhausts on 2 and 3, they're so far away from the valves and they've gotta go round the pushrods. By the way, if you dont mind me asking, how much did you pay for it? is it competitively priced against the arden. I love MED and everything they do, and Steve is a great engineer and a lovely guy - i'm sure too that they put a lot of effort into developing that 8-port, but dont be naive in thinking its MED's idea, or maybe not even MED's castings.... the Elder 8-port has been around for years

http://business.fort...er/445/head.htm

http://business.fort...r/445/photo.htm

Edited by JetBLICK, 12 August 2008 - 11:42 AM.

[preston-pill]

i rest my case this site is full of vankers

[JetBLICK]

Your right, im sorry, your response is both justifiable and mature... having learned from my mistake, i shall never again when seeking further knowladge, ask a question of you.