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| cjh |
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tickford_6 wrote: backyard_fun wrote: just thought that the ea head with the Au valvetrain has a smaller ratio lift 1.8:1 where the ea head with ea valvetrain has a lift ratio of 2:1.... dont know if thats right but thats why i asked the AU cam is designed to use the 1.8:1 rockers. It's not the same just with different rocker ratio. The type of head it running on doesn't change anything. Have a think for a second. The AU head flows less, yet the AU makes more power more torque and uses less fuel. Over ten years of factory development improved over the original EA stuff. Yep.....better spray pattern injectors, broad band intake manifold ( lengthens the torque curve ), direct fire ignition system, better fuel & ignition mapping, better balanced engine too, beehive valve springs, lighter valves and valvetrain in general.....cam angle sensor, knock sensor.....lots of stuff to make them better.
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| tickford_6 |
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Posts: 6449 Joined: 11th Nov 2004 |
backyard_fun wrote: yea tickford_6 your right, will the Au bottom end handle the higher compression alright? dont want to do this then have it drop a rod or something There is more stress on the rod at the top of the exhaust stroke then there is at the top of the compression stroke. |
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