Quote Originally Posted by EmotorsportsE
wtfISaPRIMERA?, you just haven't run up againt the right RB20's, alot of the ones leaving our shop are stock but theres a good few that aren't. Yes it's a older RB motor, 89-93, but isn't a redtop just as old? Makes less torque? Every stock RB20 we've ever dynoed has made more power and torque than a stock SR does. It's just like SR's, they're a dime a dozen stock everywhere, but the are a couple of mean ones around.

E
This is Jay by the way.

You can get an rb20 back until 86 in z31 Z cars and R31 skylines which pisses me off because I have seen some kids with the older rb20s thinking they came out of an r32. I'm not saying they are from your shop because this was a while ago and i think they were tophat cars.

And yeah a redtop is pretty old 91-93. So dont get one! Get a blacktop they made those up until 98 for s13 and 14 motors and until 02 for s15. I'm just saying 1986 until 1996 is long time for a motor.

Rb20s make 185 torque at the crank an sr's make 202, now does an sr have a bigger drivetrain loss or something? I have always seen dyno of sr's having more torque than rb20s stock for stock.

I dont know Im just throwing this out there. If the kid just wants something in there and doesnt plan to modify it I say go with the rb but for more power later go with an sr.