RB25DET or RB20DET

[tgood]

Which one is better for the 1990 240sx.Are the legal and will they pass an inspection, and how much dos it cost all together. How long do you think they will last because by the time i get the money i will be old.

[gabossie]

I'll be nice and not flame you for this, but you should really search. these things have been covered MANY times. Neither are legal. Costs vary greatly depending on many factors (search search search). And which one is better just depends on what you want out of it and what you plan to do with it.

[tgood]

a

[tgood]

f

[Nameless EJ6]

stop bumping this. Go search.

Neither one is "better".. it depends on what you want out of it.

They are both illegal, duh. They were not designed for this car.

They will last a long time.. so start saving.

[Nameless EJ6]

stop bumping this. Go search.

Neither one is "better".. it depends on what you want out of it.

They will last a long time.. so start saving.

[S13Sil-line]

OK Dude,The RB25 has a bigger displacement and are also newer and do have a better stock hp. No offence but you sound like to me your just now getting into nissans and I think you should decide on what you want out of your car, not really your motor. For example. You wanna drift get an SR20 or a CA18 or keep your KA and do mods. You wanna road race stick with a four cylinder for wieght,.. personally I don't think the difference is that noticable. You want HP go with a 6. Take into concideration when you do an RB swap your not just doing a motor swap. You will notice you have to put in money for more than just your motor. For me I got an RB25 to drift because I wanted the most power possible on a stock motor while keeping it as close to stock as I could with reaching my goals of hp. Visit http://www.rb25det.org for more info on rb motor.