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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Upgrade or Transplant? (Can't decide)
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Thu, 15 April 2004 12:43
 
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if this is your first motor build, do the 4K. easy, cheap, you break it? meh, cheap 
7K is torquey, but truck motor stroke.
dunno where you got your ideas from, but 3K and 4K are flat top piston, 3K is smaller capacity with same compression as 4K, so the 3K combustion chamber is smaller. will rasie 4K's compression to 10:1ish.
you take it to someone, or you take out maybe 1-2m of metal.. in the intake, all around.. in the exhaust, on the walls and roof of port.
cam carby extractor? what rpm range?
i have camtech 609 (235@50thou, 0.435" lift) but need different springs.
camtechs stage 3 is good... for a driveable car without many hassles.
OR, if you wanna do it once, got the 4AG... it IS better in all respects except cheapness and have to get engineered...
Cya, Stewart
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