eh... I'd buy the RB, drop it into a decent looking 240, and sell it to some kids in high school for 8 grand. Then I'd but myself a 20 valve 4A-GE ($500) and, a 2 door B13 Sentra project car ($750-$2000). The GA16DE in the Sentra would then be boosted, and the tranny cryogenically treated.
Then, I'd run around waiting for people to tell me 1) "everyones got an SR" or 2) "Sentras are gay" then I'd pop the hood show them it's a motor they probably know nothing about, and proceed spank their ass in my ghetto, home made hell rocket Sentra.
SR's are great. NA or Boosted.
RB20's haven't done anything wrong to me, and I have a healthy respect for the 25, and 26.
CA18, never really looked at it much as I ended up with a Nissan motor from the other side of the family tree, when I got my Maxima instead of getting a 240.
GA16, always impresses me every time I drive a stock Sentra. It's got wonderful midrange and sounds great. They're the most plentiful Sentra motor you can find, so they cost next to nothing.
I <3 Nissans.
