180SX or 240SX?
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^^^ yes we know that, actually we have knon this longer then you have been on the site. :icon_salut:
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You bought a car and you didn't know if it was a 180sx or a 240sx?? Wow.....
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SR is wanted cause its factory turbo, revs higher, and supposedly has stronger internals. But lately 1/10 SR coming in from what i have scene requires rebuilds and more then that go boom with in 4-5months. Parts are way more available cause these motors have been modded in japan for over 10 years
KA is a very torquey motor. Just doesnt rev past 7k with out building the whole head. and if you have ever road in my car it doesnt need to rev past 7k well if i could it would be more fun. but it scoots the way it is
rb26 would require over 10k in parts to get running right, not including labor. unless you are a skilled fabricator and mod and go single turbo from the start.
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the 180SX and its crazy derivative, the Sil-80 (Silvia front end, 180 back end) were popular drift cars in japan. the "Impact Blue" 2-chicks team drove a blue Sil-80 in Initial D

IIRC, in Japan you pay excessive tax and insurance penalties based on displacement, so a 1.8 or 2 liter is going to tend to be more popular than a 2.4 liter.
The big torque of the KA fits the perceived image of american roads and drivers better than a high-winding high power motor. Consider that honda ruined the F20C after a couple years in the US market by making the F22 and thus appeasing all of the "it has no torque" pussies we have here...
The RB can rev very high... 8000 rpm is stock i think... that's quite the feat for an inline 6.
the CA and SR motors may also be lighter than a KA which might be a consideration as well.
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