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Cubes

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Everything posted by Cubes

  1. Yep drop it in ASAP and have them sign a statement stating when the car has been dropped off and what the problem with it is. Attach a letter from Advan stating the compression test results and say to the workshop it is to be fixed under warranty. Don't let them stall and push you around; I've been there and done that and learnt the hardway. If they state they can't get to it until x date still leave the car there as if that date is after the warranty has ran out your out of luck.
  2. So it has warranty? If thats the case definitely bring it in. Say you've had it compression tested and cylinder 5 has shown up as having issues. Regardless if its running smooth or not missing if a cylinder is down on compression it has issues and should be sorted under warranty asap.
  3. I believe unless you live 40km out of the CBD only then is it a cop shop VIS. Otherwise.. Regency inspection. If its dead stock and in good nick you have nothing to worry about so transfer rego; if its modified and noticably so leave it regd interstate for as long as possible.
  4. NA head is fine; it won't affect comp ratio as that is achieved by the domed pistons the N/A motor uses. Drop the head on a N/A RB30E bottom end and you will end up with around the usual 8.2-8.3:1 comp ratio. The N/A bottom end with the SOHC head achieves a 9:1 comp ratio; the DOHC lowers the comp from 9:1 to 8.2-8.3:1 because its combustion chamber is larger.
  5. $400 is a bargain.
  6. Definitely look at a R26 head and its std plenum. Rb25 head for ~$1000 + ~$700-900 for a decent plenum. That 2k can go a long way in buying a good rb26dett head and its std plenum and better factory cams.
  7. Gave them a buzz. What they did was measure from the seat to the top of the shim??? and then throw the spring on the spring compressor and check the load required to compress the spring to that value. So sounds all a little dodgy but ahh well you get that. :S He said GTR's generally get a little less than 35lbs. So I suspect they are not using the 35mm compressed value but rather a slightly higher value which is why they are getting a lesser lbs value. So using the same measurement.. 10pounds with the std springs and 35pounds after. If all that makes sense. Ahh well bugger it; see how it goes. Thanks Adriano.
  8. So which would be better from a flow point of view? Having the hot air do the 180degree bend in to the fmic or having the cool air leave the fmic and push through the 180degree bend? Are we better having the hot air travelling the longer distance or the shorter distance? I 'probably' think its best to have the hot air do the longer run. But I really don't have much of an idea with regards to flow dynamics.
  9. The R33 GTR's use the more common, cheaper and faster zirconia sensors. The only issue with that as I said above you will have to alter your o2 sensor wiring a touch.
  10. All the op6's from jap wreckers have all been BB.
  11. I had them check that; no bind. Quite a few others have ran with GTR springs and they haven't had issues so I was fairly certian I wouldn't either. Sky30 ran tomei 260 9mm cams without bind. This is bugging me... It can't have 35-40lbs of seat pressure if anything it must have equal to or slightly greater than what a gtr runs. That being ~52lbs. I'll give them a buzz tomorrow and ask how they check the seat pressure and quiz as to why it may be lowish. They feel that 35 to 40pounds what ever that means is perfectly fine for DOHC turbo. Makes me wonder if they check valve seat pressure while installed (if thats possible) or if they simply measure valve spring pressure at possibly suspected installation load.
  12. In the manual the GTR springs are supposed to see 24kg (52.9pounds) at installation load which is the spring length compressed to 35mm. Not sure if installation load represents seat pressure? :S Ahh well as the saying goes. The poor/tight man pays twice. lol I dropped a set of GTR springs in my RB25 head; the gtr springs are slightly taller than the gtst springs so they should provide more seat pressure than when sitting in a GTR head. Hopefully all is good, if not I'll be paying twice. lol Should have simply dropped a set of performance springs in they only cost $280 odd.
  13. Sorry no. His stock injectors with the same fuel pump and stock fuel reg hit 100% duty at ~183rwkw with 12:1 afr's Gt35r .82 on 7-8psi. Dropped in a set of sard 800 twin sprays maxed out the fuel pump at 250rwkw and then went on to make 260rwkw on 1 bar. The turbo really didn't make all that good power under 10psi; over 10psi it really woke up.
  14. Ahh well I'll find out. :S Thanks. I went with SK's oil feed recommendation of blocking off the rear and dropping a 1.5mm up front. See how we go.
  15. On Boostworxs dyno myself and a mates both hit 100% duty at around 180rwkw with a 12:1 afr and stock fuel pressure. Mate of mine was running a suspected GTR pump that later ran out of fuel at 250rwkw and my own which is a bosch 044. 180rwkw is 241rwhp so 29rwhp drive train loss going by the usual 270cc injectors = 270hp. :S Maybe our beloved DD Dynos are reading a touch high as technically its not possible for 270cc injectors to make 241rwhp when you consider drive train loss.
  16. I'd say it was 10 pound. It was valve floating with anything more than 4500rpmish and 10pounds of boost. Hrmm so now its 35pound and possibly still not enough. :S He was a little vague when I spoke to him though. He said its much better 35 to 40 pounds. Not psi like I repeated. Any idea what RB25DET's std or Rb26DET std run?
  17. I got the head back on Wednesday and its all on. Just waiting on a couple of parts that I've ordered and then off for a tune. Fingers crossed by the end of this week coming.
  18. I added to my previous post with some figures. The S13 diff isn't a drop in due to its different housing. So again you will be forced to swap the ratio from that diff in to your housing. Of which will blow out ot $600 odd by the time you buy the diff and have it fitted.
  19. J30 is a type of nissan just like the R32 R33 etc As I said.. before, a 3.9:1 won't drop 100km/h rpm all that noticably. The rolling dia of your 265/35 18's is slightly larger than stock so at 100km/h you will already be reving slightly lower AND your speedo will be slightly out. At 100km/h with your 4.11:1 diff ratio, 5th gear ratio and 265/35/18's the engine will be ticking over at : 4.1 ratio - 2551rpm 3.9:1 ratio - 2421rpm 3.7:1 ratio - 2297rpm 4.3:1 ratio that is shorter you'll be at 2708rpm If you ran factory spec rolling dia (631.90) tyres (205/55/16) at 100km/h with stock ratio's etc you'd be ticking over at 2591rpm. So with your larger tyres you've dropped 40rpm off your 100km/h cruising speed. Also the stock tacho reads slightly higher than it really is. So you have to ask yourself... Is 100rpmish really worth the slower/duller acceleration? I've done it and I definitely do not think so; enough so that I had the diff out a couple of weeks later and the std diff ratio shoved back in it.
  20. Mine too when 100% stock ~5years ago made 115rwkw.
  21. Hi ppls, I've had my valve springs replaced and was told with the standard RB25 N/A valve springs I had seat pressure of 10pounds across the board. After the valve springs were replaced this jumped to 35-40pouinds (was vague). Would any one know what the factory seat pressure is supposed to be for the RB20DET, RB25DET or even Rb26DETT? He was quite happy with the seat pressure its now at. What do you all think? Whats considered 'good' or 'over the top' seat pressure for an RB DOHC head? Thanks ppls.
  22. Again... If its to reduce wheel spin then your barking up the wrong tree especially with only 209rwkw which is bugger all. If its 'only' to drop rev's at 100km/h then yes.. BUT acceleration rate will suffer as a result. The J30 diff isn't a simple drop in. I would expect the pumpkin to be the same as the R33 but the half shafts are different. You will have to drop your diff center in to the J30 pumpkin and then slide in your half shafts; or grab the crown and pinion from the J30 and have it fitted to your diff housing. Either way your up for around $300 ish for the J30 diff and another $300ish to get it working. So all up $600 ish + oil. You really are better off putting that $600 towards a good mechanical. If you want a good 100km/h cruiser buy a family wagon.
  23. 45ULT, So you run only 40psi base and managed 327rwhp?
  24. One thing that prevents them being 100% interchangable is the half shafts bolt pattern. R33 is 5bolt (1x5), R34 is 6 bolt? and S15 I can't remember. Unsure on spline; I'm almost certian if the R34 is 6bolt it will also have the larger spline.
  25. So the water is a 14mm Banjo with a M14 x 1.5 banjo bolt and the oil feed a 7/16 Banjo with a Inverted Flare 7/16-24 Banjo Bolt. I checked out motorsport connections but they only have the m14x1.5 banjo bolt listed, not the banjo w/hose end its self. Might drop them a line to see if they are available. :S
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