Here's something about Nissan engine codes:Marty01 said:whats the diff?? between an SR20... VR20...??? all those?? im assuming they are all 2L engines.. duh.. what special from one to the next?
ive noticed these diff engine codes before.. but never took it upon myself to learn about them.. guess its time to
You Sir... are a wealth on knowledge to this beginner in the wonerful world of Nissan!rogoman said:Here's something about Nissan engine codes:
The first two letters denote the engine series/type. KA, SR, RB, VG, VQ, L, QR, ZH, VH, etc.
The next two numbers denote the displacement (in liters) of the engine. 24 is 2.4 liters, 30 is 3.0 liters, etc.
The NEXT letter (either blank, D, or V) denotes the valvetrain. No designation means it is a SOHC engine, D is a DOHC engine, and V is Nissan's
designation for variable valve timing (aka VTEC in Honda terms), plus DOHC.
The next letter denotes the fuel delivery type. A blank letter is carburetor, E is Electronic Multiport Fuel Injection, and D is Direct Injection. There is also "i", which stands for Throttle Body Fuel Injection.
The last letter(s) denotes forced induction. A blank letter is naturally aspirated. T is for turbocharged applications, with each turbo using one "T". Twin turbo's are TT, and triple turbo's (if it was ever made) would be TTT. Supercharged applications are noted with a R.
"D" is directly into the cylinder; I think that method of injection is not used much anymore. Read somewhere that port injection produces a much better overall mixture.Marty01 said:now one question about the fuel delivery type... "D" would be directly into the cylinder correct?? im unfarmilliar with this typpe of injection with Nissan
cool.. another question.. between the SR, RB and VG i think... the diff would be the bottom end of the engine itself? like the SR if 4cyl and RB is 6 cyl... basically a diferent "construction" of the engine itself.. as 2 could be DOHC same displacement but different first 2 letters... which i would hafta learn that by myself heherogoman said:"D" is directly into the cylinder; I think that method of injection is not used much anymore. Read somewhere that port injection produces a much better overall mixture.