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Originally Posted by himilefrontier
I'd get a B13 SE-R(91-94). They are pretty cheap usually, and are fun to drive. I would look for a private owner though since auctions can be problematic. You do not get a test drive and the fact that it can drive up on the auction block tells you little about the condition of the car. SR20's tend to have cooling problems due to a poor waterpump design, so look out for signs of overheating when shopping for one.
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Actually, the flawed waterpump design of the SR20 causes water cavitation at the higher rpm range(6500 and above), because of which the motor temperature can go up fast. This problem can be accommodated for by things such as:
1) 300ZX TT radiator cap. This cap raises the boiling point of the coolant, therefore making it carry away more heat from the motor.
2) Underdrive pullies, which slow down the water pump to help it deliver coolant efficiently at the higher rpm range.
3) A new re-designed water pump that helps ease the cavitation issue.
I'm sure the regular Joe doesn't drive the SE-R at such a high rpm (those who have no idea about what the SE-Rs are about at least). The water pump problem is not so bad and won't show any signs of issues on the motor unless the car has been run constantly at drag races, autocross, or other motorsport competitions. Even then many cars won't show any problems.