Rotor replacement

[duandcc_forums at cox.net]

Up to 20* BTDC? Really? Without detonation? Wow! OK, if I run it at 20* BTDC, wouldn't that totally kill my top end power? I mean, I know it will help low end grunt, but at the cost of the top end? The NG is pretty gutless above 5250 RPM already...

Dave
1987 CGT Special Build
SE Virginia


> From: Tony Lum <tlum at flash.net>
> Date: 2003/02/25 Tue PM 01:00:17 EST
> To: <duandcc_forums at cox.net>
> Subject: Re: Rotor replacement
>
> At 12:20 PM 2/25/03 -0500, you wrote:
> >Well, it's time for the plug wires, rotor & cap on my NG to be replaced.
> >After doing so, I'll have the timing reset (I have reason to belive it's
> >off). I wanted to double check the proceedure. Put the motor on top dead
> >center and make sure the rotor lines up with #1 spark plug wire on the
> >cap, then you can set it with a light from there. Correct? A properly
> >running but otherwise unmodified NG with CIS-e III should be set to 12* if
> >you always run 93+ octane gas, right? Or can you usually go higher?
> >
> >TIA,
> >
> >Dave
> >1987 CGT Special Build
> >SE Virginia
>
> Its normally 15 deg BTDC and its been reported you can go up to 20 deg
> BTDC.  BTW, you're supposed to put the spare fuse in the top of the fuel
> pump relay to stabilize the timing system for adjustment.  An advancing
> type timing light makes this adjustment pretty routine.
>
> HTH,
>
>
> - Tony
> lots of I-5 Audis
>
>
>