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bigmikespec

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Everything posted by bigmikespec

  1. bigmikespec
    Open to offers!
  2. bigmikespec
    Bump
  3. bigmikespec
    Bump... will get a couple of photos tonight.
  4. bigmikespec
    Do you have any flow test information on the head? Interested to see what you got out of the exhaust ports.
  5. bigmikespec
    I have my Vipec V88 ECU for sale. Included is a complete adaptor loom, so you can remove the factory ECU, plug in the adaptor loom and then the Vipec V88. All done professionally, it does look good, will post photos later. Other bits are a 7bar MAP sensor and the cable to go from the ECU to USB port. Price $2200.00, can ship at buyers expense, located in Adelaide SA. Prefer text or call 0456969001 Mike
  6. bigmikespec
    Will you send to SA?
  7. bigmikespec
    Yes I did say it, despite the aggressiveness I agree with Mick_o People hate facts
  8. bigmikespec
    Are the plates munted on the Exedy? If they are, I would think they are very expensive to replace.
  9. bigmikespec
    What is the need for custom Ian?
  10. bigmikespec
    I agree it is capable of 600kW of flow... but that's about it from your comments.
  11. bigmikespec
    It is just an example, get your mate to put a couple of pressure gauges at the turbo outlet and at the plenum on his 600kW RB with stock pipe work and lets find out Yep, some people like the look, others (like me) would prefer to look for every efficiency they can especially if they are building a turbo system with all custom piping anyway.
  12. bigmikespec
    Yes of course. Put simply, the least number of bends, shortest length and optimized pipe diameter will be best. If your turbocharger is compressing the air to 30psi (example) you don't want it to be loosing 5-10psi through pipe work to get it into the cylinder head.
  13. bigmikespec
    Obvious sarcasm aside, there is a point (size) where it won't help anymore. Put a pressure gauge at the outlet of the turbo and one on the plenum, the differential pressure is the pressure drop through the pipe work. Then do it again with the upgrade.
  14. bigmikespec
    It will work, but it won't be efficient. Pressure drop through the pipe work alone might be 10psi at a random guess at high flows. Assuming constant flow, the smaller the pipe will produce an increase in pressure.
  15. bigmikespec
    That quote about smaller piping wasn't right, I am not sure what Scotty meant? In any case, you can upgrade the piping but the biggest restriction will probably be the ITB's, in which case, the money spent upgrading pipe work is best done elsewhere. Unless you do change it anyway to go to a big single turbo then by all means upgrade to larger piping, but you will most likely on get a small gain in flow (less pressure drop) through piping.
  16. bigmikespec
    The ITB's will always disturb the airflow and create a pressure drop across the port compared to a single TB manifold. If you just want to make big power and less pressure drop through the system putting a single TB on the stock plenum is the cheapest way out. If you are serious, a much larger volume plenum (which helps with distribution of flow) with a 100mm TB like you want is probably better and big piping, no flow restriction!
  17. bigmikespec
    See... now more mentally challenged people understand what you mean.
  18. bigmikespec
    Would have been better if you typed... 'brahh' instead of bro, but I still liked it.
  19. bigmikespec
    You, haha! I don't think people should be surprised when they build a stroker engine/head combo, put a small exhaust side (turbocharger) on there and then the power noses over early... there will be more power earlier (more 'response') which is the intent of these builds but you just wont get that peak number. http://www.sau.com.au/forums/topic/434910-rb3026-cam-selection/page-2 An elephant never forgets, lol
  20. bigmikespec
    That was bound to happen considering it is a small turbo (especially hot side) for such a serious engine, same result with that other fella posting in the RB30 section.
  21. bigmikespec
    that's better
  22. bigmikespec
    Yes I am with you now, thanks for the clarification. Will send you a PM.
  23. bigmikespec
    Yes I remember you mentioned the stepped interference fits, that puzzles me a little... how many stepped interference fits do you have? Yes, you are right about the cylinder pressure decreasing with increasing volume hence why the thickest section is at the top, etc. Sorry for all the probing questions, but it is interesting and I am investigating whether something similar can be done to achieve a large bore RB26 (safely 88mm bore up to 90mm). I understand your sleeve design requires the spacer plate but something like this (follow link) could be done to achieve which I am talking about. http://speedtalk.com/forum/viewtopic.php?f=1&t=43197&hilit=subaru
  24. bigmikespec
    Great work Ian. I know I have bugged you with questions before, but based on your R&D can you comment on steel sleeves in the RB26 whether they actually provide an improvement on block strength and rigidity or do they simply allow for a more 'consistent' bore in terms of geometry and metallurgy? As an example, going out to a 88mm bore (or 90mm as you say is possible) in a sleeved block allows for 4.25mm wall thickness (88mm bore) or 3.25mm wall thickness (90mm bore). That doesn't take into account that there is original block material and sleeve material... how can such thin sections be justified? What analysis have you done to verify block integrity at high cylinder pressures and various other real life cases? Really interesting stuff!
  25. bigmikespec
    I agree, I can never understand why people spend money wanting to make power and get caught up in 'you can get away with a 3" exhaust'... the best exhaust on a turbo car is none at all... no restriction. I can't help but think either that this build should have been a 2.6 with GT-SS considering the power it has (not) made, not offence to Peter but the money spent here is bizarre for the given result.
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