Cylinder Head Porting

PostPost by: johnjacobs » Fri Apr 08, 2005 9:54 pm

I have a Ford Kent (Crossflow) engine in my +2 which I am uprating, and am
trying to find a good place to
have the head ported.
Can anybody recommend a good (preferably cheap) shop in southern
California to have this work done?

I am also looking to have the flywheel lightened.... It has been suggested
that I should be able to shave it down
to 14lbs from 22lbs - Has anyone got experience of this, or any problems
that may result from shaving all that
metal off?

Anybody got a Twink engine for sale?

John

UK 1973 Elan +2S130, US 1973 Elan +2
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PostPost by: types26/36 » Sat Apr 09, 2005 9:52 am

--- In ***@***.***, ***@***.***e:


got experience of this, or any problems

John,
I used to play about with Xflows a few years ago and dispite dire
warnings about shattering flywheels and cutting my legs off (it was
a Seven) I lightened the the flywheel to about 10-12lbs and nothing
happened, (but NO GUARANTEE'S) the car was used for road and
club/historic racing.
In standard form that is a big peice of metal on the end of a Xflow
crank!
Brian
64Elan/72Sprint/J.P.S.Europa/Birkin T.C.Seven
Brian
64 S2 Roadster
72 Sprint FHC
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PostPost by: Thornts » Sat Apr 09, 2005 10:59 am

I just bought a bunch of X flow bits off a retired FF racer. Had a standard
looking flywheel and a fairly well lightened version in amongst the bits. On
the not too accurate (or so Mrs T claims) bathroom scales:

Standard 24lbs
Lightened 16lbs

Close to your figures John (assuming a 711M flywheel should weigh the same
as a TC one?)

Looks like a lot of metal has been removed and I wouldn't like to say how
much more to go before it lightens itself considerably... Guess there is
probably a bit left to go at.

Probably not really a good idea to 'suck it and see'

Cheers

Rob Thornton

S3 SE FHC
S2 7 TC

-----Original Message-----
From: Brian Goodison [mailto:***@***.***
Sent: 09 April 2005 10:52
To: ***@***.***
Subject: Re: [LotusElan.net] Cylinder Head Porting




--- In ***@***.***, ***@***.***e:


got experience of this, or any problems

John,
I used to play about with Xflows a few years ago and dispite dire
warnings about shattering flywheels and cutting my legs off (it was
a Seven) I lightened the the flywheel to about 10-12lbs and nothing
happened, (but NO GUARANTEE'S) the car was used for road and
club/historic racing.
In standard form that is a big peice of metal on the end of a Xflow
crank!
Brian
64Elan/72Sprint/J.P.S.Europa/Birkin T.C.Seven
















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PostPost by: john.p.clegg » Sat Apr 09, 2005 1:24 pm

Brian
So, what was the overall effect of losing this 10lbs

John


Brian Goodison <***@***.***> wrote:


--- In ***@***.***, ***@***.***e:


got experience of this, or any problems

John,
I used to play about with Xflows a few years ago and dispite dire
warnings about shattering flywheels and cutting my legs off (it was
a Seven) I lightened the the flywheel to about 10-12lbs and nothing
happened, (but NO GUARANTEE'S) the car was used for road and
club/historic racing.
In standard form that is a big peice of metal on the end of a Xflow
crank!
Brian
64Elan/72Sprint/J.P.S.Europa/Birkin T.C.Seven
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PostPost by: types26/36 » Sat Apr 09, 2005 3:45 pm

--- In ***@***.***, JOHN CLEGG <john.p.clegg@b...>
wrote:

John,
Nothing dramatic,reved quicker got off the line fast and no issues
with
the idling, car was light 630 kg (which is heavy by todays standards)
so it didn't need a huge amount of torque.
The 1600 block,crank and flywheel were later fitted with a T.Cam head
and are still in the Seven although I no longer do competion and use
the car rarely as the car is still in S.Africa.
Brian
64Elan/72Sprint/J.P.S.Europa/Birkin T.C Seven
Brian
64 S2 Roadster
72 Sprint FHC
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