Spill Posted July 11, 2006 Share Posted July 11, 2006 Had one or two issues with my car so took it back for a re-tune, basically the injectors cannot cope with an APS plenum. AFR is way too high with the injectors at 100% utilisation, so now need new injectors. What injectors do I need and is there anything else I should do while I'm at it? Quote Link to comment Share on other sites More sharing options...
Removed Posted July 11, 2006 Share Posted July 11, 2006 hell get extra ones! seriously, I don't know much about fueling, see what bap or Dorian have to suggest about this. then for the specs, I'd ask Sharif (not saying you need to buy them, only after he's given you his sugestion) THEN ask him for a quote Quote Link to comment Share on other sites More sharing options...
Baptist Posted July 11, 2006 Share Posted July 11, 2006 I'll have some spare ones off my car soon (standard 440cc APS ones), but im sure you'll need em pretty quickly??? Should be off the car in a couple of weeks. Quote Link to comment Share on other sites More sharing options...
Guest prescience Posted July 11, 2006 Share Posted July 11, 2006 Pete, It is regrettable that you are where you are having ditched IMO a perfectly and proven workable fuel solution with the Vortech FMU and additional pump. Seeing as that is now gone, you probably do need to go for larger injectors (Bap, I thought the APS were 380s but my memory is terrible, I know ) and in terms of other bits, you should for sure install a full fuel retunr system from AAM or CJ Motorsports (phunk's company) - not much to choose between this two, they both do the job. For old time's sake if you like , read this thread (Booger's input in particular) to understand how the Vortech addresses the issue and why you are not necessarily maxed out with that http://www.my350z.com/forum/showthread. ... t=injector You should get rid of yours and buy mine because I need to sell and move on Quote Link to comment Share on other sites More sharing options...
Baptist Posted July 11, 2006 Share Posted July 11, 2006 APS injectors flow the equivalent of 500cc at the raised fuel pressure that the APS fuel system delivers. On normal pressure they are 440cc I believe. Quote Link to comment Share on other sites More sharing options...
Guest prescience Posted July 11, 2006 Share Posted July 11, 2006 OK makes sense. Feel really sorry for Pete, he's into more bucks here One thing you probably know the answer to, will Pete need any additional hardware (spacers etc) to hook up your injectors to stock fuel rail. I know the RC 440s need a bit of extra gear Quote Link to comment Share on other sites More sharing options...
Spill Posted July 12, 2006 Author Share Posted July 12, 2006 I'll have some spare ones off my car soon (standard 440cc APS ones), but im sure you'll need em pretty quickly??? Should be off the car in a couple of weeks. Cheers this may be a short term solution, I've been without the car since March so another couple of weeks shouldn't hurt Quote Link to comment Share on other sites More sharing options...
Spill Posted July 12, 2006 Author Share Posted July 12, 2006 You should get rid of yours and buy mine because I need to sell and move on Can't stand the noise of a kinetix plenum Thx I was looking at the AAM system having read a few of your past posts about fuel, but not sure whether I'm going to take it much further, I'm in for about £6K to date just on SC so can't decide whether to cut my loses return to stockish park up in the garage and buy a noble or 996 Quote Link to comment Share on other sites More sharing options...
Removed Posted July 12, 2006 Share Posted July 12, 2006 You should get rid of yours and buy mine because I need to sell and move on Can't stand the noise of a kinetix plenum Thx I was looking at the AAM system having read a few of your past posts about fuel, but not sure whether I'm going to take it much further, I'm in for about £6K to date just on SC so can't decide whether to cut my loses return to stockish park up in the garage and buy a noble or 996 think you've just been quite unlucky really! Quote Link to comment Share on other sites More sharing options...
mike@mjpauto Posted July 12, 2006 Share Posted July 12, 2006 For some formulae to calculate injector requirements for a given application try this link: http://www.racetep.com/rc2.html Quote Link to comment Share on other sites More sharing options...
Spill Posted July 12, 2006 Author Share Posted July 12, 2006 For some formulae to calculate injector requirements for a given application try this link: http://www.racetep.com/rc2.html Thank you according to this i need 498.75cc Quote Link to comment Share on other sites More sharing options...
mike@mjpauto Posted July 12, 2006 Share Posted July 12, 2006 On Z32 TT models running in excess of 1 bar boost they usually upgrade to a 555cc injector. Extreme engines will use up to 740cc injectors which definitely require engineering work on the manifold to fit. Engine capacity is, of course, 500 cc down on the VQ35... Quote Link to comment Share on other sites More sharing options...
Baptist Posted July 12, 2006 Share Posted July 12, 2006 440cc will be more than enough for the power your going to be running. Why should you pay for any of this, the f*ckwitts who installed this lot should be sorting it. Did you get the leaky fuel pump fixed?? Quote Link to comment Share on other sites More sharing options...
WRC Tech Posted September 11, 2006 Share Posted September 11, 2006 Bewildered Quote Link to comment Share on other sites More sharing options...
Guest prescience Posted September 11, 2006 Share Posted September 11, 2006 Quote Link to comment Share on other sites More sharing options...
Removed Posted September 11, 2006 Share Posted September 11, 2006 must have missed this... good to see it was retracted though Quote Link to comment Share on other sites More sharing options...
Baptist Posted September 11, 2006 Share Posted September 11, 2006 What was? Quote Link to comment Share on other sites More sharing options...
Removed Posted September 11, 2006 Share Posted September 11, 2006 both WRC's and Dorian comments Quote Link to comment Share on other sites More sharing options...
Baptist Posted September 11, 2006 Share Posted September 11, 2006 Got ya. More importantly than retaliation, did they sort out Spills car? Quote Link to comment Share on other sites More sharing options...
Removed Posted September 11, 2006 Share Posted September 11, 2006 think so tell you what Jon, I'm gonna start studying to fit my own setup, at least I'm not gonna have anyone else to blame but myself when it blows up! Quote Link to comment Share on other sites More sharing options...
Baptist Posted September 11, 2006 Share Posted September 11, 2006 Thing is Val, if you pay someone top dollar to fit a kit, then you should not experience such problems. You rely on them knowing what they are doing. Would save you some dosh though. Quote Link to comment Share on other sites More sharing options...
Removed Posted September 12, 2006 Share Posted September 12, 2006 Thing is Val, if you pay someone top dollar to fit a kit, then you should not experience such problems. You rely on them knowing what they are doing.Would save you some dosh though. but since you can't "trust" anyone in this business it seems (or at least it looks like finding a good trusted tuner in this country is somewhat near-impossible), you might as well have some fun if you have access to a daily driver and DIY! Quote Link to comment Share on other sites More sharing options...
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