Advanced Timing (should i???)
04-15-08, 09:27 AM
#7
el cochis - you got what you deserved after your first post in this thread.
Now let's all get along, and keep responses constructive. BTW, the NA's are a lot less sensitive to advancing the timing compared to the TII's, but there's a limit as well.
BTW, you have an '89, so stock for stock, 14hp more at the flywheel, and you're calling the guy's car a piece of ****?
Now let's all get along, and keep responses constructive. BTW, the NA's are a lot less sensitive to advancing the timing compared to the TII's, but there's a limit as well.
BTW, you have an '89, so stock for stock, 14hp more at the flywheel, and you're calling the guy's car a piece of ****?
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04-15-08, 12:55 PM
#8
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^^^ who cares, i dont care what he says, my car is a shitbox anyways.... just not to me. so how far could i advance it??? also what power gains would i be looking at??/ n/a s4 intake, header
04-15-08, 03:42 PM
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well i turned the CAS till the idle went up, the line is about quarter inch advanced from the mark, and my car runs better now, weird
EDIT: is that too much
EDIT: is that too much
04-15-08, 04:28 PM
#14
The old way to do it for good light throttle response was to increase the advance until the engine was pulling its strongest vacuum. If you advance it more and the vacuum doesn't go up, turn it back to the first point of highest vacuum. If it starts surging before it reaches highest vacuum, turn it back to the most advanced point before surging. Then set your idle.
This will advance your timing across the board and can damage your engine in high load situations. Most n/a's won't have a problem, but if you get the engine hot, it will ping easier.
Josh
This will advance your timing across the board and can damage your engine in high load situations. Most n/a's won't have a problem, but if you get the engine hot, it will ping easier.
Josh
04-15-08, 04:57 PM
#15
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The old way to do it for good light throttle response was to increase the advance until the engine was pulling its strongest vacuum. If you advance it more and the vacuum doesn't go up, turn it back to the first point of highest vacuum. If it starts surging before it reaches highest vacuum, turn it back to the most advanced point before surging. Then set your idle.
This will advance your timing across the board and can damage your engine in high load situations. Most n/a's won't have a problem, but if you get the engine hot, it will ping easier.
Josh
This will advance your timing across the board and can damage your engine in high load situations. Most n/a's won't have a problem, but if you get the engine hot, it will ping easier.
Josh
04-15-08, 05:55 PM
#16
I was curious about this as well... I had adjusted my CAS by "ear" and the car really pulled good. I got curious & hooked up my timing light & set it back to factory spec.
I noticed that it started easier and idled better at a lower RPM, but just didn't have the pull that I had previously enjoyed. Is there a danger of damaging something with the timing advanced on an s4 NA?
I took my Racing Beat header off the other day & noticed that the end of the back-pressure pipe that faces the exhaust port had melted off. I talked to the guys at Racing Beat & they suggested I was running lean or had severly retarded timing. That's what prompted me to check it out. My timing was advanced maybe 3/8ths of an inch maybe a little more. I miss having the extra *****. Maybe I should use a mid-grade of gas with the timing advanced to avoid any detonation issues.
Ramses666
I noticed that it started easier and idled better at a lower RPM, but just didn't have the pull that I had previously enjoyed. Is there a danger of damaging something with the timing advanced on an s4 NA?
I took my Racing Beat header off the other day & noticed that the end of the back-pressure pipe that faces the exhaust port had melted off. I talked to the guys at Racing Beat & they suggested I was running lean or had severly retarded timing. That's what prompted me to check it out. My timing was advanced maybe 3/8ths of an inch maybe a little more. I miss having the extra *****. Maybe I should use a mid-grade of gas with the timing advanced to avoid any detonation issues.
Ramses666
04-16-08, 07:48 PM
#17
Well I'm glad so many people have an opinion on this.... I'm still on stock timing & notice easier starts, smoother pulls and lower idle. I don't feel the power like I did with the timing advanced a few degrees but it seems to run better overall. I guess a standalone would be able to deal with the difference while keeping the idle smooth. I'm still not sure if I'll change it back to more advanced timimng... 600 rpm idle is a little low for me in traffic... it just takes a little more to get it going than 800 rpm's. It seems like my mpg went up a little & I've been making some mad pulls whenever possible.
Ramses666
Ramses666
04-16-08, 09:56 PM
#18
if you advance the cas timing its only good for under 1200rpm, anything after that and the ecu goes with its own setup, which advances 15degrees after 1200rpm I think.
Only way to set your own timing is with a standalone, or something else to edit the stock timing.
Only way to set your own timing is with a standalone, or something else to edit the stock timing.
04-17-08, 09:32 AM
#19
if you advance the cas timing its only good for under 1200rpm, anything after that and the ecu goes with its own setup, which advances 15degrees after 1200rpm I think.
Only way to set your own timing is with a standalone, or something else to edit the stock timing.
Only way to set your own timing is with a standalone, or something else to edit the stock timing.
And to answer the question before, yes, you can hurt your engine. You would need a knock meter/egt gauge to really know when that will happen though.
If you really want to play with the timing, just get an Rtek 2.x for the na. It isn't near the cost of a standalone, but will let you play with the parameters with pretty good control.
Josh
04-18-08, 11:10 PM
#20
So I guess I need an EGT gauge to really know whats happening with each rotor... or wait... thats two EGT's for a dual setup..... hmmm.... I think I'm better off just staying with the stock timing.... I don't really need that extra 2 or three extra ponies tonight.
Ramses666
Ramses666
04-19-08, 01:27 AM
#23
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