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View Full Version : Advancement of Ignition Timing

S13Grl
12-23-2001, 10:51 AM
Has any one of you advanced their ignition timing and experienced any knocks? How large was the advancement?
12-23-2001, 01:48 PM
irena i did it to my 99 se-r no knocks i advanced it to 17 from stock 13-15

you can hear the pinging its noticeable
S13Grl
12-23-2001, 01:53 PM
To my knowlege, pings and knocks are the same... what octane fuel are you running?
12-23-2001, 02:19 PM
ohh yeah forgot that 93 on my se-r nothin less you can get by with 89 but do not and i repeat DO NOt go with 87 you will feel a total difference in power and just plain drive the car sucks my dad put 87 once and i knew it before i even asked him what he put in

and yeah pings knocks are the same you'll hear the lifters
S13Grl
12-23-2001, 02:26 PM
Well, you said you heard no knocks, but there were pings. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=':)'> What's going on, dude? <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=':)'>
12-23-2001, 02:46 PM
i didnt mean i hear the pingin now on my sentra i mean if you advance it to far sorry for not being clear

:-p
S13Grl
12-23-2001, 02:49 PM
<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=':)'> That makes sense, sorry.
AceInHole
12-23-2001, 04:22 PM
when i had my S13 I kicked the ignition timing all the way over (didn't even bother checking the degree... couldn't rotate the dist. any further anyways) and added 2 bottles of octane booster to premium (94 octane) fuel. &nbsp;Lost ALL low end power.... the sucker loved redline, and I think it would have stayed on power well past that. &nbsp;Didn't ping at all as far as I could tell, but it seemed out of the useable power band. &nbsp;It's been a while since I've had my S13, but I remember somewhere around 23 degrees being a target mark with no octane booster.
S13Grl
12-23-2001, 05:00 PM
What about high-end power, did you notice anything at all?
AceInHole
12-23-2001, 05:21 PM
just playing with it, advancing and retarding the ignition seemed to make the powerband itself shift slightly. &nbsp;I had 2.25&quot; catback exhaust to a straight through universal muffler, with a home made intake (just simple piping to the MAF with a cone filter). &nbsp;That car was ALL high end power..... &nbsp;I wish I had dyno'ed it, but from what I could tell by my butt the power never fell off up to 7k. &nbsp;It might have been the '91-early '92 cams at work..... &nbsp;guess we'll never know since the car is totalled now.
Also... I took down a number of cars with it... including a few Integras. &nbsp;Most notably, I was pulling harder on a GSR at the HIGHER ends of my gears..... a small testament to exactly how much power that car was making up top. &nbsp;I'm guessing I was doing around 170 crank, judging by what my car does now (0-60 was definitely faster in my S13) at a dyno'ed 165 crank HP S14.
S13Grl
12-27-2001, 08:44 PM
That's pretty cool.

It makes perfect sense that the powerband changes: you are advancing spark timing and power output (not much...).

Anyone else with comments on this?
12-27-2001, 10:33 PM
on sr20de's the power is felt on higher rpms

thats my comment on it