
Metro Turbo Camshaft?
#1
Posted 08 February 2010 - 09:03 PM
#2
Posted 08 February 2010 - 09:21 PM
#3
Posted 08 February 2010 - 09:23 PM
the nat asp MG cam is a good upgrade
Edited by bud666, 08 February 2010 - 09:23 PM.
#4
Posted 08 February 2010 - 09:33 PM


#5
Posted 08 February 2010 - 10:10 PM
#6
Posted 08 February 2010 - 11:06 PM
#7
Posted 09 February 2010 - 07:25 PM
998's are 230/240 deg duration
cooper S was 240/252 duration
997 cooper was 252/252 dur
MG metro was 252/268 dur
everything else (inc turbo) was 230/252.
#8
Posted 09 February 2010 - 07:32 PM
Think you will find that each cam was designed especially for a specific engine and not just straight out of the parts bin for whatever engine. e.g. 'S' cam prob useless in a 998 and not a go faster item.850 cam is 230in/230ex deg duration
998's are 230/240 deg duration
cooper S was 240/252 duration
997 cooper was 252/252 dur
MG metro was 252/268 dur
everything else (inc turbo) was 230/252.
The turbo engine was just a blown 1275 with a few strengthening mods, no need for hot cams when the air is forced in anyway, I believe my mate bought an avonbar cam for his which was designed for turbo engines, didn't make a lot of difference it still blew the head gasket every week. lol
#9
Posted 09 February 2010 - 07:59 PM
no need for hot cams when the air is forced in anyway[/quote]
right .. depends how much power / what torque curve you want etc.. pick up a copy of this months mini mag to see why!
#10
Posted 09 February 2010 - 09:03 PM
#11
Posted 09 February 2010 - 09:08 PM
the avonbar cam should have made a fair difference to your mates motor, it's not the prefered turbo cam of the no1 A series turbo forum for no reason....
also the head gasket should not have been blowing every week, most people run a std BK450 with no issues, that includes engines poking out over 200hp.
Think you will find that each cam was designed especially for a specific engine and not just straight out of the parts bin for whatever engine. e.g. 'S' cam prob useless in a 998 and not a go faster item.850 cam is 230in/230ex deg duration
998's are 230/240 deg duration
cooper S was 240/252 duration
997 cooper was 252/252 dur
MG metro was 252/268 dur
everything else (inc turbo) was 230/252.
The turbo engine was just a blown 1275 with a few strengthening mods, no need for hot cams when the air is forced in anyway, I believe my mate bought an avonbar cam for his which was designed for turbo engines, didn't make a lot of difference it still blew the head gasket every week. lol
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