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nedb

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Posts posted by nedb

  1. 1. Easy, no mods required, other than drill and tap the block for the 12 mm RB26 head bolts, RB20/25/30 are 11 mm.  We use 12.5 mm ARP head studs for their higher clamping pressure.

    2. Depends on what pistons you use, what head gasket and how much you polish the combustion chambers.  I have seen compression ratios from 7.5 to 1 to 13.5 to 1.

    If he is REALLY going to use it for circuit work, then ~ 650 bhp would be my target.  We have found it very difficult to get more than that to the ground in a 2wd application.  And we have very sophisticated shock absorbers, adjustable anti roll, anti dive, anti squat, caster camber and toe and a larger selection of spring rates.  

    The main problem however, is response.  Over 650 bhp even in a 3.1 litre, gets very difficult to tune for the rapid throttle response necessary for running decent and consistent lap times.  Even at that power level, driving it fast requires considerable skill and experience.

    :D

    For a reliable street setup:

    For the argument sake, if you could get a RB26 head at the same price as the R32 RB25de head which one would you use and why?

    What compression ratio would you aim for and (if not stock) what pistons and head gasket would you use to achive that?

    What would be a reasonable power target?

    :)

  2. With a setup up like that I dont think the catch can would be catching a lot as the blow by gasses will be escaping through the shortest route. So in this case with hoses connected on top of the can the gasses will never see the bottom as they will escape throgh the filter of the can so it doesn't matter if the can is baffled or not.

    Please correct me if i'm wrong.

  3. I got an early model too and had to change the water lines as the rb25 turbo needed larger bolts. U migh wanna change the compressor elbow pipe as well as the r32 one is slightly smaller.

    The rest of you guys that have done this conversion, where did you connect the hose coming of the actuator? The R32 tubo has a nipple on it for the hose and the R33 doesn't.

  4. So is it possible to remap the ECU and retain the shift logic or it would be lost? If it would be lost I guess the only other option would be some type of a pigyback computer.

    I'm trying to figure out my next step n this ECU thing has got me scratchin my head.

    Any advice?

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