Quote Originally Posted by PSINXS
i can get you specs. when i first posted on supraforums i got the same treatment. what exactly do u want to know? s13 sr20 202hp 205 lb/ft tq s15 250hp i forgettorque. also the blacktop has stronger internals. thts the only difference between red n black. and the s15 had a upgraded t28 with larger injectors than the previous models. s13 had a t25 turbo. s14 had a t28 and i think it made 220hp. i can go search resources and be sure. ask anything else and i will help ya.

OMG the difference between red and blacktop is the blacktop has cooling fins in the head and its newer. Thats it, no stronger internals or anything.

Go to heavythrottle.com then jdm engine faq

And do a search before posting.