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Rolls

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Everything posted by Rolls

  1. Rolls
    I've noticed that you can indeed rotate the housings between 1,1.5,2 way on some diffs, didn't know you could do it with the nismos, that is interesting as hell!
  2. Rolls
    Think the issue is more David doesn't see buying a new one as value for money, $1400 is a shitload, see lots of 2nd hand 2 ways for ~500 that cost nothing to get the clutches machined and set up with non aggressive preload but he wants a 1.5 which almost never come up second hand, hence the question, buy a torsen for not much? buy a 2 way that is slightly more aggressive than he wants or pay way too much for a new 1.5? Imo a nismo 2 way with mild preload would be fine as I've had one and it drove like stock, but I don't think david wants to compromise there. Which means either lots of money for new 1.5 or a torsen that will be better than stock but not as good as a 1.5 way. Guess it comes down to 2 metrics, cost and performance, what is more important? If it is cost go torsen, if it is performance go a 1.5 way. Though the 2nd hand 2 way is screaming as a fantastic middle ground to me.
  3. Rolls
    N1GTR if you had bugger all cash would you settle for stock power? Or would you get as much as you could get?
  4. Rolls
    or just just the stock bov with a MAP, I don't know why people have a hard on for removing the stock one, it works great. Using something similar on the exhaust for a wastegate would be interesting but you'd need to shield it, otherwise you'd just have a hardcore exhaust leak in the engine bay cooking everything and if you shielded it you'd have to seal half it off so it wouldn't be as effective.
  5. Rolls
    What is wrong the stock one? This has all the same problems as an aftermarket venting to atmosphere bov and no advantages of the stock one. Bin it.
  6. Rolls
    If your pipe is sucking closed you will make that much extra power, if it isn't then it won't really help much.
  7. Rolls
    any exhaust/performance car shop will make you one and install it for $200 max anyway so I don't know why people bother assing around trying to make their own etc.
  8. Rolls
    If it sucks shut it restricts it massively, if it doesn't suck shut then it is fine.
  9. Rolls
    they work pretty well
  10. Rolls
    That is a good point.
  11. Rolls
    I guess you get the benefit of TS that way, but yeah, I just do not like the concept of the cylinders being unbalanced unless you have individual EGT sensors when tuning, even then the concept just feels yucky.
  12. Rolls
    I know I wouldn't wan't to set it up that way, 3 cylinders will still be restricted more so than the other 3 :S
  13. Rolls
    You use a single scroll manifold and twin scroll turbo. if you used a twin scroll manifold you'd cook the motor.
  14. Rolls
    If you did that the turbo still sees the same mixed exhaust pulses, it has to be separated the entire way otherwise it won't be of any benefit, hence the separating takes up space and the AR is reduced for the same physical size.
  15. Rolls
    surely he was joking
  16. Rolls
    Yeah it sucked when I had no VCT, was responsive boost wise but still felt doughy down low.
  17. Rolls
    Yep and the tiny rear exhaust housing.
  18. Rolls
    I have a GCG highflowed R32 rb20det turbo that makes about ~235kw on 18psi dropping to 15psi by redline on an rb25det. Can hold 18-20psi to redline just haven't had a chance to get it tuned with that to see what it can make. I am 100% sure it is an rb20det turbo so you could probably squeeze a slightly bigger rear wheel in there if they managed to.
  19. Rolls
    Looks epic, what is traction like?
  20. Rolls
    135 is super hot : ( can you put a coolant temp/intake temp ignition trim table in the ecu? get it to just flood it with fuel down to 9:1 as well if it ever gets that hot again?
  21. Rolls
    something close to 70psi edit: I read 66psi was the highest they read but was a peak reading not what was run for the entire lap.
  22. Rolls
    The flow limit of the turbo doesn't change between motors.
  23. Rolls
    its a 25 neo turbo
  24. Rolls
    Yeah it could be the typical stock tune midrange timing pull making the power dip making it look like full boost is there, and the full boost is at 3k where the earlier peak is. Good point. edit: neo turbo has the bigger rear housing, maybe it was on full boost at 4k, makes sense I guess. Top result for a rb20 as well.
  25. Rolls
    that doesn't make sense, the stock rb20 turbo makes full boost far earlier than 4200rpm, more like 2800rpm. The spool times look identical, it just looks wrong. Not to mention I am unaware of any rb20 that makes 195kw on a stock turbo.
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