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PostPosted: Wed Feb 16, 2005 6:52 pm 
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i was also told that,
is using a 6" manifold your motor dose not need a scatter cam? :?:

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PostPosted: Thu Feb 17, 2005 9:24 am 
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mickmini, I know very little about fuel injection so I was just thinking and it's good to have someone to bounce ideas off of :D so thanks for your feedback.

Unfortunately I don't think I am ever going to get around to tring any of it out :( .
Do you recon it could be worth while getting in contact with Marcel to see if it would or could work? :?:

Oh, with the scatter cam had I read somewhere that it also comes down to outside cylinders having better exhaust flow because they have thier own exhaust port. But the inner two cylinders don't flow as well because they share the middle exhaust port.

KC has more to say here:

http://www.minimania.com/web/DisplayID/1272/SCatagory/CAMSHAFTS/DisplayType/Calver%27s%20Corner/CarType//ArticleV.cfm

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Last edited by fuzzy-hair-man on Thu Feb 17, 2005 12:18 pm, edited 1 time in total.

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PostPosted: Thu Feb 17, 2005 12:07 pm 
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i think Marcel concluded that the only way to eliminate the problem was to go to an eight port head. hence the elder head he is trying.

Anyone know if they fixed the casting problems he talks about on his web site :?: :?: :?:

michael

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PostPosted: Thu Feb 17, 2005 6:36 pm 
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mickmini wrote:
i think Marcel concluded that the only way to eliminate the problem was to go to an eight port head. hence the elder head he is trying.

Anyone know if they fixed the casting problems he talks about on his web site :?: :?: :?:

michael

There's a ref in the post below (off minimania site) that the 2nd head is flowing OK now, but I think that's after Graham Russell ported it for him. :wink:

He's talking about the alloy Pierce 5 port head available in the states..

"I did these tests on the aluMINIum Pierce head with S size valves, but there's plenty of meat in the steel seat inserts to go with much bigger valves. The MS data is for a Minisport stage II, "Vizard" is some data I stole from one of his books on a head that was comparable in terms of spec to the MS. The Elder data is from a bad casting... I need to update this plot with the new data showing that head flowing 120 CFM at 0.400 lift, very similar to the Westlake 8-port I had.
Given the big inlet ports on the Pierce head it will be best for high lift cams and high RPM, ie high HP engine rather than one designed for high torque at low RPM.

I have one for the EFI project with the idea that the large port volume will be used for storage of the fuel charge. Now, after my research, I may just use that big port to house a dividing plate. Stay tuned..."


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PostPosted: Fri Feb 18, 2005 12:05 pm 
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from what i read Doc, he was not so much concerned about the flow characteristics, but material defects in the casting. i know they need a lot of work to make them into a performance head, but Elder always wanted to have a head that could be used in any application from mild to wild.......

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It was a pleasure ausmini. I'll miss all you misfits and reprobates ;-)


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PostPosted: Fri Mar 25, 2005 6:53 pm 
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More good info from chichm & others, on port injection of 5 port heads..
http://www.minimania.com/web/threadid/6 ... thread.cfm
Note ... if you are not logged in there the new threads are at the top.. :shock:

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PostPosted: Sun Mar 27, 2005 9:49 pm 
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I`m not going to dribble on much about this topic here ,,, but we`ve had major dramas trying to get port injection working on the A series 5 port too,,,hence my crossing over to 8 port, twin cam, Bimmer motorbke cyl head,,,

However, just to let you all know,,, the factory injection manifolds have little "deflector lips" cast into the end of the manifold as it meets the cyl head port

Hhhmmmmm,,,yes they do,,,funny enough, tests on these things don`t show any increase of power on the carb jobs at all (like der :-) ),,,manifold flow is not really good for performance at all...i suspect that the factory came to this conclusion & could only cover up a sympton rather than curing the cause , just to make them work "ok" for road use & the ever tightening emissions laws.

just a piece of trivia for you.

:-)

twin cam 16v BMW K1 motorbike cyl head, Autronic engine management system & T2.5 turbo is the only way to fly.

problem solved !!!!!!!!!!! :-)

maybe add a little PPPppsssssttttt to boot :-)

watch out for the citric acid green fastback Mini Monaco

Hhheee hhaaa hhee haaa HHAAA HHHEEE HHHAAAAAAA!!!!!!!!!!!!!!!!!!!!!!!!!

sorry, i do get a little carried away sometimes :-)

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 Post subject: Rob
PostPosted: Sun Mar 27, 2005 10:04 pm 
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Location: Sthrn HiLoLands, NSW, Australia
fuzzy-hair-man wrote:
mickmini, I know very little about fuel injection so I was just thinking and it's good to have someone to bounce ideas off of :D so thanks for your feedback.

Unfortunately I don't think I am ever going to get around to tring any of it out :( .
Do you recon it could be worth while getting in contact with Marcel to see if it would or could work? :?:

Oh, with the scatter cam had I read somewhere that it also comes down to outside cylinders having better exhaust flow because they have thier own exhaust port. But the inner two cylinders don't flow as well because they share the middle exhaust port.

KC has more to say here:

http://www.minimania.com/web/DisplayID/1272/SCatagory/CAMSHAFTS/DisplayType/Calver%27s%20Corner/CarType//ArticleV.cfm


Arrin...we have a resident expert who has read up on everything Marcel and others have tried....Rob the magazine editor....collar him at the next meeting and get him talking about one of his fav subjects.. :D

After years of research I think he is coming to the conclusion that forced induction on the A Series is the only way to go....maybe he has been to QLD talking to Matt????

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