rb25 weighs more then a ka not to mention you are putting more weight over the front axle. Not a good idea. rb26 or bust if you want a 6 cylinder nissan engine. If you are considering a 6 cylinder you might want to investigate a 1jz.
So i guessed you are more focused on response then all out power (autox \ drift). Keep a 4 cylinder in there and add a turbo. You will keep the overall weight down and have the power you want.
Ya know it would be real easy to get a s13 blacktop, put a t28 turbo on there w\ a 3in exhaust and a FMIC with a walbro + fpr and get 275whp all day everyday, alot more reliable then a ka-t. Keep in mind an sr20 is a very viable option.
So i guessed you are more focused on response then all out power (autox \ drift). Keep a 4 cylinder in there and add a turbo. You will keep the overall weight down and have the power you want.
Ya know it would be real easy to get a s13 blacktop, put a t28 turbo on there w\ a 3in exhaust and a FMIC with a walbro + fpr and get 275whp all day everyday, alot more reliable then a ka-t. Keep in mind an sr20 is a very viable option.
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