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Dose Pipe Sutututu

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Everything posted by Dose Pipe Sutututu

  1. Dose Pipe Sutututu
    long story short, dyno a tuning tool to safely determine max torque and load up the motor without snapping out sideways and getting pulled over by cops. Want to test power? go do a quarter mile.. that never lies (technical constraints apply, such as: tyres, weather, surface temperature, driver ability, not getting kicked off the track because you ran a 10, etc.)
  2. Dose Pipe Sutututu
    If I was given a choice of a worked GT-t OR a mild EVO.. I know what I would go for
  3. Dose Pipe Sutututu
    ^ does it chuggle a little? try add more "post crank" fuel - I find E85 likes a little more compared to 98RON - especially in the cold.
  4. Dose Pipe Sutututu
    yup, another reason I own a R33 GTS-t with rust and 500000+ kms with a dash that says 143000km LOL Wonder which dealer hairdressed the car
  5. Dose Pipe Sutututu
    ^ dyno wars lol.. that's what he meant Maybe the previous operator ran it in 4th and maybe this one ran it in 5th (being a R34 GT-R, 5th gear is 1:1 as it's a 6 speed).
  6. Dose Pipe Sutututu
    ^ well said but then there are the best of both worlds in a C63 AMG, E63 AMG, etc.. of course you could buy 15 GT-t with that money or 30 with the latter vehicle.
  7. Dose Pipe Sutututu
    of course, e-mail me all your questions and I shall answer .. Long story short with VTC enabled you produce more torque due to higher cylinder pressure thus the motor can only take less timing, as soon as it disengages torque will drop off - reducing cylinder pressure allowing you to ramp up timing again. From my limited tuning experience, motors with a shorter stroke will prefer a mild ignition ramp after peak torque, where as a longer stroke motor i.e. SR OR 4G likes loads of timing hammered into it after peak torque. Best way to determine where to disengage VTC... setup a mild timing map with VTC on a few thousand RPM past peak torque ~6500rpm (of course monitoring knock) do a dyno run, then set the VTC point around 4500rpm do another run.. Overlay the two torque curves and you will see your optimum VTC disengagement point. Of course after you do that, you can start ramping more timing after VTC disengagement and tune for power up top. That's a quick run down of it. Just a note, I've never worked with variable cam timing and variable lift.. RBs and SRs use a fixed on and off point which makes tuning easy for an amateur like me. In terms of injection, VE is closely related to torque.. more torque higher VE so it's natural you see your VE decline as your torque drops off.. this is the beauty of VE tuning.. makes tuning easier
  8. Dose Pipe Sutututu
    Probably their drill press operator went a little too deep LOL
  9. Dose Pipe Sutututu
    Expensive lesson I have admit they suck and taken my learnings and documented it on nissansilvia.com
  10. Dose Pipe Sutututu
    They probably used a bigger drill bit and it's causing all the issues. Also the spray pattern looks like ass, I'm pretty sad I jumped the gun and bought these water pistols.
  11. Dose Pipe Sutututu
    Mine is always around 5 to 10 degrees cooler than the water temp on normal days. On the track it's usually in sync
  12. Dose Pipe Sutututu
    T They perform differently on a SR - I fitted and tuned a set of 1000cc and my mate is getting 400km per tank on E85. Only about 120km less per tank than 98RON
  13. Dose Pipe Sutututu
    as you remove it you'll loose extra power steering assist, it's there to detect lower speed and allow more assistance to the power steering rack and as you hit a certain road speed the assistance drops off leaving you with a more planted car
  14. Dose Pipe Sutututu
    I'm planning to move to these injectors: http://www.injectorshop.com.au/product/siemens-ev14-875cc-12-ohm/ I've contacted the shop - however still waiting on a response.
  15. Dose Pipe Sutututu
    I run boring BREEZE clamps and my shit box sees 1.5bar day in day out
  16. Dose Pipe Sutututu
    Hey Cal, thanks for your offer however if I'm taking out the rail it's never seeing my intake manifold again I'm adamant on top feeds, Siemen DEKA ones seem to fit the bill and requirements - they have a 30 degree cone spray pattern and come in short form which will clear all my plenum woes.. however Proflow / Aeroflow fuel rails only support 3/4 length top feeds. Once I find out the exact requirements/way to fit 1/2 length ones I'll convert soon enough. These Five O injectors are pissing me off - ironically they work a treat on my friend's S15.. but yes, they're smaller at only 1000cc and are feeding a hungrier cylinder so it works out well.
  17. Dose Pipe Sutututu
    I only have idle issues once I try and go leaner than 13.5 on idle.. on cruise it will sit close to 14 and far and piss a little around 13.8 AFRs seem to be ok.. but I don't want it that rich.. I'm just wasting fuel and ruining my economy.. On 98RON - forget about it.. car idles and cruises in the 12 region any leaner and just misses farts & pops.. Potato man, go leaner! I've got my friend's S15 cruising at 16.5 AFRs and he's getting consistent ~400km per 45L (when the red light goes on)
  18. Dose Pipe Sutututu
    But they're not re-manufactured like the Five O Injectors, I've had it with the shit spray pattern. They refuse to go any leaner than 13.5 AFR on E85 (gasoline scaling) and maintain a stable idle. On cruise I can't go any leaner than stoich without stupid pops and farts. On E85 I would like to lean cruise in the 16 AFR region, but with these injectors - forget about it! They either spray fuel like a garden hose OR they don't... I have no idea why the American forums rave about them - I'm moving towards the idea most of the positives are from member who do not do any tuning themselves thus aren't totally across the technical constraints these injectors pose. After my rudimentary injector test using glass bottles, I can contest the spray & pray pattern is atrocious! Let's see what Mr Tax man feels like this year, either a massive fisting (no new injectors) or he rewards (going top feed, the works)
  19. Dose Pipe Sutututu
    More maintenance with the EVO you constabtly need to flush out the AYC pump and bleed it to keep it happy.So you'll tend to drive the EVO less, the Skyline however is like a camel runs on barely anything and keeps on going thus you'll prefer to drive that more and most importantly the Skyline has a larger fuel tank.
  20. Dose Pipe Sutututu
    Great news I really regret buying mine now, these injectors are just horrible there's just no control at minimum pulse width. It's impossible to get a lean idle or cruise with these as it will just refuse to supply the right fuel. On E85 my cruise and idle is about 13.5 to 14 AFR any leaner and the car refuses to drive smoothly. Once I've got some cash flow, the Five O injectors are coming out. No more garden hoses - I want a nice cone spray pattern!
  21. Dose Pipe Sutututu
    photos are here http://www.skylinesaustralia.com/forums/topic/442255-fs-syd-parts-for-skylines-s15-new-used/page-2#entry7341501
  22. Dose Pipe Sutututu
  23. Dose Pipe Sutututu
    are these the Siemens Deka ones? I've had enough of the 1200cc Five O Motorsport garden hose injectors..
  24. Dose Pipe Sutututu
    more of an update.. my venom cat is still in one piece! that's with me cracking the anti-lag and hitting the rev limiter often too (I use ignition cut).. loads of bangs, still loads of cat
  25. Dose Pipe Sutututu
    In conclusion for those people who are here for a quick answer Gap based on requirements, for all normal to mild just stick to 0.8mm for whatever fuel.. If your coil packs are shit, either replace them or gap your plugs down. For crazy cars, safe bet if you need less than 0.8mm Me personally, I use 6 heat range with 0.8mm gap and have no misfires on E85.
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