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DiscardTheWeak

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About DiscardTheWeak

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    Rank: RB20DET

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  • Car(s)
    kouki S14
  • Real Name
    IAN

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  1. Hello Ben, was curious what your findings were with this head project? Mainly curious how using the 20de head worked out. I’ve always been curious how interchangeable these heads were , 25det, 25DE, 20de, 20det, 26, NEO, esc. Obviously the flanges are different and some head stud differences, I believe some coolant passage differences, but as far as castings and flow capability, I’ve been curious how similar they all are
  2. Hello Ian, sorry the project had to come to an end, I loved following this. Was curious if you had any comments on how the original RB31 version with the steel spacer and open deck compared to the newer design which used the aluminum semi-closed deck design? You had alot going on at once, so at times I got confused which engine was which and what the goal was for each. I know the original version was more of "sleeper street" configuration, but are there many design compromises that limit it in your opinion, say up to 1000hp? Thanks again for sharing all this, I know its a pain to upkeep a build thread
  3. I’m still trying to determine what the original plating is. The new rails I get all appear to be R34 rails, and the plating on each one is different than the next. Blue, purple, silver, faint gold, but no yellow zinc. I have no idea what the r32-r33 rail looked like originally because I can’t find a NOS one, or a one that is not corroded. Cadmium platers are not that hard to find in the US.
  4. I actually wanted to know for replating purposes. I am restoring a GTR and I want everything as it was originally. The only NOS rails I see available are for R34’s, and the plating seems different every time I get one. Some are blueish, some are silver/gold, other very gold. Cadmium was used extensively when the skyline was being produced. I’d like to know the real plating was
  5. Is the factory RB26 fuel rail even zinc plated, I was under the impression it was cadmium plated from the factory, like the fasteners. Am I wrong on this?
  6. Are tomei procam 260 10.25 drop in when their buckets used?
  7. Thank you. Thats what I was thinking, however that is not exactly what the common response its on the forums. Basically, you gain half of the base circle reduction in clearance. So a 31mm base circle, like HKS step 2 will gain .5mm more clearance? Is the common consensus that 9.8mm is the highest acceptable lift on a stock base circle without modifying for clearance? Technically making an HKS 31mm base circle, 10.2 mm lift, drop in as well? Thanks for the info, these companies are hard to get in touch with
  8. Hello all, I am researching a cam setup for my RB26. Can anyone please confirm from their experience, whether or not Tomei Procam 260 10.25mm lift cams need head relieving for lobe interference? The common answer is yes, anything over 9.8 or so, you need machining. It my understanding that this is only true with factory base circles, which is why many companies make base circles smaller, such as the Tomei Procam which use 30mm base circles, OEM being 32mm. HKS use 31mm in the step 2, I believe JUN does as well. When installed with Tomei lifters, do the 10.25mm Procam become drop in? Thank you
  9. I do not know why the lines show coolant flowing that direction however. That water pipes flow towards the back of the thermostat, not away from the thermostat, unless I am wrong.
  10. Thank you for the response, this is what I was hoping for. I assume that means the 3/8” nipple on the heater pipe below gets capped as well? This is what confuses me, had it been just a return path for turbo coolant, I’d have no question to cap. However, that 5/16” nipple on the bottom of the plenum tees into the “behind head tubes”, which then terminates in the heater pipes. That is why, I was thinking it was more than just a turbo water return, and more of a closed thermostat bypass tube. For cold startup or something. I trust you that it can be capped, as others have said the same, I was just hesitant. Attached is a pic Which you can see clearly the hoses, and nipples I am referring too.
  11. Interested in the outcome of this question. Gone single turbo, and no longer need a rear turbo return, only the front return. Every normal after capping that rear fitting? Is that fittings only function, the rear turbo water return? I see that it tees into the heater tubes as well, is this a coolant path for closed thermostat operations as well? Thanks
  12. Wow! 9174 on m RB20, is that a mock up engine or a crazy built engine? Great info, thanks again
  13. Thanks al it for the pictures. Is that an 8374 or 7670? They both share the same frame, but the 8374 has the larger compressor.
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