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Location:
Sydney, Australia
Registered:
May 2002
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 4AGE Bigport v Smallport heads
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Wed, 17 July 2002 00:48
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Hi All,
My 100kW conversion is at a bit of a crossroad at the moment, trying to determine which is the better head to use before I go spending any more money. My motor currently has the standard small port head on it.
Now folklore has it that the bigport head with a 100kW bottom end is the combo to have. I suspect this is true for someone with an 86kW and is after more compression/stronger bottom end, but the question is, is it worth scrapping the smallport head for a bigport one? Has anyone ever run a smallport head on a 86kW bottom end to prove the theory? Or is it a case of it just belonging to the "bigger is always better" law, which doesnt always hold true. The motor is planned to stay N/A and may end up with some cams and quad throttle bodies at some point in the (distant) future.
I'd like to hear from anyone who has experience with different 4AGE combos to help me deside which is the best way to go, or what compromises I can look forward to.
thanks heaps fellow toymodders
rgrds
sam
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