sCaz Posted July 15, 2014 Share Posted July 15, 2014 Hi, Swapped the exhaust and are getting 1.2 bar/17.4 psi as a minimum/baseboost. Currently running the BC flat at 1.2 even though I would prefer a lower baseboost around 1 bar and use the BC to get just over 16 psi but I guess you cant get everything.. Now BC only works as a 1.3 bar/18.9 psi warning/limiter. Funky JDM wastegate... Anyways!I do not have a wideband O2 hooked up so I just wanted to verify that I am "generally safe". I have a walbro pump and stock 440cc injectors, ECU is stock. Is it safe? A friend is running 1.35 bar/19,6 psi on 440cc injectors (~98% duty) and jdm turbos. He's ended 50+ tires on the drifttrack running 3rd gear rev limiter in all the big turns, so thats proven.. but thats with a Link G+ ECU.. I am curious how the stock ecu handles 17.4 psi on 440cc? Quite repetative, but is it generally safe? :-D Thanks for answers! Quote Link to comment Share on other sites More sharing options...
Chris Bailey Posted July 15, 2014 Share Posted July 15, 2014 You should be okay, doubt your friends turbos will be happy running 1.35 bar on J-spec turbos. Quote Link to comment Share on other sites More sharing options...
sCaz Posted July 15, 2014 Author Share Posted July 15, 2014 Sounds good Chris! Btw, I read somewhere that the stock ecu provides "full fuel" after 1 bar? Do you (or anybody else) know if this is so, and what does it really mean? The same amount of fuel at X RPM at 1.2 bar and 1.0 bar? Yeah, I've been wondering to about the 1.35 bar after getting into supra technicals.. Maybe steel upgrades? He ran season 2012 and season 2013 with it as a pure track car where he won one of the seasons in his class. This year it's been remade to a street car with occasional visits to the track only. Except for a clutch and a blue flywheel he's not had any mechanical issues as of 2012, only bodyparts.. 2jz quality stamp? :-) Quote Link to comment Share on other sites More sharing options...
masterfett Posted July 15, 2014 Share Posted July 15, 2014 i would say more luck. J-spec turbo's wont last long running boost that high. But 1 year is good going. Quote Link to comment Share on other sites More sharing options...
Guest Evlc36 Posted July 21, 2014 Share Posted July 21, 2014 J-specs are fine at 1.2 bar - ran mine for close to 2 years, and were still fine when I took them off to go single - I have about 95000miles on my VVti Aristo (440cc, stock ECU at the time) Quote Link to comment Share on other sites More sharing options...
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