TC,
OK soooo, after you realized the advance circuit placed the spark so
precicely that ALL the mixture was completely consumed.(has to have
performance benefits) how did you go about fattening up the mixture? needle
setting, mains, pilot screws, all the above? may be float settings? give it
up pal, inquiring minds want to know! HA.......thanks.......steve #1131
----- Original Message -----
From: TC <[EMAIL PROTECTED]>
To: V-MAX TECH LIST <[EMAIL PROTECTED]>
Sent: Friday, April 07, 2000 3:38 PM
Subject: Re: Ignition Timing Advance Modification
> Sat Tara,
> I haven't noticed, (heard), any detonation but after first trying this
> out with regular gas, (and I was listening ... believe me ... ), ...
> inspection of the plugs did reveal that this could be a problem. I had
> a good tune and nice color on the plugs etc ... and after an 80 mile
> test run with the switch on all the time I returned to find the plugs
> bone white and even some flecks fused to the plug insulators. While
> this is an indication of being extremely lean, (no wonder you get
> better gas economy .. right ??), I didn't care for seeing part of my
> pistons relocating to the spark plugs. Soooooo ... I have richened my
> tune considerably and am doing additional testing and keeping a close
> eye on what is going on. The full throttle take off difference is
> noticeable, (too me .. ), but it is hard to be completely objective
> and how good is "seat of the pants" evaluation anyhow ... so obviously
> ... more definitive testing needs to be done. I personally think ...
> that this modification would be of greatest value at lower RPM
> operation ... as "rule of the thumb" says about 35 degrees of advance
> should give you maximum power at top RPM anyhow ... and the Vmax will
> give you about 32-33 degrees even if you completely defeat the sensor
> input to the ignition controller. But this was a cheap and dirty way
> to manipulate the output voltage of the sensor without damaging it and
> provided me an opportunity to play with higher octane fuel and
> possibly be able to gain something by it's use. My experience in the
> past with higher octane fuel, (like in the 100-108 range ... that you
> get at the track), is that you would lose power and it appeared to
> demonstrate that most profoundly in the 0-60' times, (the only segment
> where you are operating below 7500 RPM ... and this was a big shock to
> me). Putting this on a switch and retaining the ability to rip the
> whole deal out should I decide to do so in the future, (without having
> to damage or cut my wiring harness), made this an irresistible toy to
> play with for a while.
> regards,
> campbell
>
> ----- Original Message -----
> From: Sat Tara S. Khalsa <[EMAIL PROTECTED]>
> Subject: Re: Ignition Timing Advance Modification
>
>
> > Hi Terry,
> >
> > Have you noticed any detonation at all while using maximum advance,
> or
> > played with the mechanical advance curve in combination with your
> switch?
> >
> > Best,
> > Sat Tara
>
>
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