Loud ticking noise from engine

wstar · 02-27-2012, 03:01 PM

(And I wouldn't worry about the Dyno numbers. Factory freak-ness is never more than ~1%, the rest is just different dynos and different atmospheric conditions, or factors other than the engine (e.g. gearing, wheel size/weight, etc)).

specblue02 · 02-27-2012, 03:06 PM

I thought I heard incorrectly when I was on the phone with the service guy but he checked with the mechanic who was working on my car to confirm but they indicated that burning 1 quarter per 1000 miles is considered normal. Nissan has higher requirements of 2500-3000 miles to burn 1 quart...still I think that's pretty ridiculous...I'm at work so my dad is going to pick it up now but he's going to question that...seems a bit high, don't you guys think so?

Jordo! · 02-27-2012, 04:35 PM

Quote:

Originally Posted by wstar

(And I wouldn't worry about the Dyno numbers. Factory freak-ness is never more than ~1%, the rest is just different dynos and different atmospheric conditions, or factors other than the engine (e.g. gearing, wheel size/weight, etc)).

The factory freak is a myth -- here's the kernel of truth (at least to the best of my knowledge): Older GM cars occasionally had a different cam put in on the assembly line when designated cams were short on supply, and because so many parts were interchangeable. If the different cam happened to have a wilder profile, you lucked out with a more powerful engine.

Synack · 02-27-2012, 04:45 PM

Quote:

Originally Posted by Jordo!

The factory freak is a myth -- here's the kernel of truth (at least to the best of my knowledge): Older GM cars occasionally had a different cam put in on the assembly line when designated cams were short on supply, and because so many parts were interchangeable. If the different cam happened to have a wilder profile, you lucked out with a more powerful engine.

Well this makes sense as to how I was introduced into factory freaks, first new car was a GM. I had a Chevy Cobalt SS for 5 years and we saw some that would come 185whp from the factory and some up to 235whp, the Supercharged version (2005-2007). Nobody saw any factory freaks out of the turbocharged version (2008-2010).

02-27-2012, 03:01 PM	#1 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3595	(And I wouldn't worry about the Dyno numbers. Factory freak-ness is never more than ~1%, the rest is just different dynos and different atmospheric conditions, or factors other than the engine (e.g. gearing, wheel size/weight, etc)). __________________ 7AT Track Car! Journal thread / Car setup details

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02-27-2012, 03:06 PM	#2 (permalink)
specblue02 Base Member Join Date: Feb 2010 Location: NJ Posts: 32 Drives: 2010 370Z Rep Power: 16	I thought I heard incorrectly when I was on the phone with the service guy but he checked with the mechanic who was working on my car to confirm but they indicated that burning 1 quarter per 1000 miles is considered normal. Nissan has higher requirements of 2500-3000 miles to burn 1 quart...still I think that's pretty ridiculous...I'm at work so my dad is going to pick it up now but he's going to question that...seems a bit high, don't you guys think so?