11-04-2014, 03:56 PM
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CC Member
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Join Date: Nov 2004
Location: Sydney,
NSW
Cobra Make, Engine: Classic Revival #3199. 366ci L76, T56 6 speed, Blue circle custom paint, Australias most original cobra 2009-2010
Posts: 2,396
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Not Ranked
[quote=1 TUF AC;1324593]
Quote:
Originally Posted by 1 TUF AC
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I went for a dirive today and I think found out why I couldn't get 100km out of second gear. It looks to me that my tacto is out buy at least 500rpm. Because the calculator say I should be reving 2000rpm @ 60kph in 4th gear but I am reving 2500rpm. normally I don't rev over 6000rpm but today i rev it to 7000rpm but the tuner sad he set the limiter to 6300rpm. And the gps says i did 100km out second so I'm pretty sure my tacto is out or my limiter is off and I have 4.3 diff gears. It definitely went a lot better when rev it That little bit more. i have a vdo tacto maybe it needs to be reclabraded or something. I might go past the tuners and get them to plug the laptop in to see if the revs Maching up with the tacto. At idle my car sits at 1100prm but it doesn't sound like it idling that fast. I am 90% sure my tacto is out but it could be something else.
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You or your tuner should be able to plug into the obd2 port and get a RPM straight off the CPU to compare to the gauge.
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