Call letters/Numbers on Nissan Engines

Discussion in 'Asian Forums' started by I couldnt think of a name, Dec 26, 2004.

  1. Could someone PLEASE fill me in? For the engine call letters/numbers (i.e. RB26DETT) I know the 26 is displacement and the TT is Twin Turbo, and the R is inline, but what's the B, D and E? Help!
  2. Nissan couldn't think of a name either.
  3. RB = Race Breed, D direct injection I believe and E is electronic ignition or something like that.
  4. Race Breed? Hardly you moron. It doesn't actually stand for anything.

    RB - Engine block/series designation picked by Nissan, no meaning despite many rumors that it stands for 'racing breed.'

    26 - displacement in hundreds of cc's. So, 26 means 2600cc's or 2.6L

    D - Dual overhead cam

    E - is for ECCS which stands for 'Electronically Concentrated engine Control System.' Basicly how the ECU uses all of the sensors to manage the engine and how it's running.

    TT - Twin turbo
  5. first two letters are just engine family like spyder said. VG, VQ, QR, SR, KA, CA, VK... etc... they're all just engine families.
  6. Also Im pretty sure it has something to do with the number of cylinders. RB= 6 cyl SR= 4cyl. Not 100% sure on that tho...
  7. Well, each motor in a family is going to be very like one another, so they are all going to have the same number of cylinders.
  8. I think the first 2 letter doesn't stand for anything in particular, only to designate a series of motor. The next 2 numbers are displacement of the motor. D is DOHC like spyder said, the next letter is for the method of air fuel management control. Most Nissan now are E, which is basically electronically controlled fuel injection. Some in Japan uses D(ie, VQ25DD), which is direct injection.
  9. well generally speaking, a family of engines will have some basics in common... bore spacing, block construction, number of cylinders, degree of bank seperation (if it's a V engine)...

    so a straight four will generally not be from teh same family as a straight six.

    examples of what i'm talking about

    the Toyota JZ Family
    1JZ-GTE: 2.5L DOHC 24v turbo, 280bhp
    2JZ-GE: 3.0L DOHC 24v, 225bhp
    2JZ-GTE: 3.0L DOHC 24v seq. turbo, 320bhp

    Toyota 1UZ family
    1UZ-FE: 4.0L DOHC 32v V8, 250-280bhp
    3UZ-FE: 4.7L DOHC 32v V8, 235bhp

    Nissan VQ Family
    VQ30DE: 3.0L DOHC 24v V6, 190-222/227bhp
    VQ30DD: 3.0L DOHC 24v V6 direct inj, 260bhp
    VQ35DE: 3.5L DOHC 24v V6, 240-297bhp
    VQ40DE: 4.0L DOHC 24v V6, 270bhp

    Nissan VG Family
    VG30DE: 3.0L DOHC 24v V6, 222bhp
    VG30DETT: 3.0L DOHC 24v V6 twin turbo, 280-300bhp
    VG33DE: 3.3L DOHC 24v V6, 180bhp

    you get the point?

  10. SO Nismo's answer vs Spyder757....hummm...

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