02-24-2017, 12:31 AM
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#11 (permalink)
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A True Z Fanatic
Join Date: Oct 2014
Location: socal
Posts: 1,122
Drives: 370z
Rep Power: 13436
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that sounds logical. It probably got worse with some carbon build up due to higher mileage. Fortunately, it only occurs during initial take off rather than pinging at higher rpm/speed.
Curious if it would cause engine damage with the ' as designed' ping in our situation?
Quote:
Originally Posted by Jhill
Usually if it pings it tends to be part throttle load right at tip in for most cars and will go away as soon as the load is less and ign correction occurs. I see you live in socal so you are warmer climate and 91 octane. I have been told the z is actually designed for 93 octane and they do have a constant ign correction with 91. I never heard any ping with mine in oem tune but you live right by one of the best tuners, may consider going to him (Seb) for a custom tune as they actually take out some of the ign advance for 91, if it really bugs you. Otherwise it is most likely doing as designed, going to the limit and then backing off when it detects knock. It's hard to say without being there and hearing it.
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