Carter/Eddie AFB question
1/10th of a degree I'm told is noticeable
That cracks me up.................Maybe as to Power, on a dyno graph.
But we're NOT in the racing Forum, so I'm assuming this is in a streeter.
In which case, your only means of comparison is in a seat of the pants.
From my personal testing;
Not even three degrees are noticeable by seat of the pants,
until the tires stop spinning, and mine are still spinning until past the speed limit, anywhere in Manitoba, Canada.
Now, if your talking 3 degrees at stall-speed, sure but
Firstly, your stall speed in a streeter is not usually 3500, so good luck as to a repeatable timing number.
But again, it only counts if the tires ain't spinning, which means most of us 360 guys are gonna be on the Primaries, and not even all the way open.
I can only Imagine a stroker.
-----------------------------------------
Or maybe it's just myazz that can't feel the difference.
In any case, my maximum Power-Timing at any moment in time, is somewhere between 32 and 34, as adjusted by my dash-mounted, dial-back, Timing Module , because;
I cannot, by seat of the pants, feel any difference from 32 to 36, and the car goes 93 in the Eighth, with the Power-Timing set at that 32/34, so why would I even care about a 1/10 of a degree?
----------------------------------------
You might ask, why do I have a 2 degree timing window?
Well cuz the dial-back module is none-too repeatable, and mine is NOT set in the center, but rather about 40% of scale and there are no graduations. I use that tool to augment my cruise-timing, every time I leave home. When I get to my destination, I reset the knob to "somewhere in the vicinity" of 40% which is probably 32 to 34 degrees on the timing light, and that's close enough.
I mean, I suppose if you had a 318 with like a 288* cam and cylinder pressure under 100psi, I suppose it could matter, lol.
But my 367 has a preponderance of torque, and a preponderance of torque multiplication, which translates to a preponderance of tirespin, so she don't care ............ about 3 or 4 degrees of timing retard, much less 1/10 of a degree..
Now, I'm not bragging on my specific engine.
I'm sure every 360 out there has the potential to be just like this.
My engine is NOTHING SPECIAL, except maybe for the high cylinder pressure and life-long diet of 87E10; lol; , but most of what she does is due to having the right gear at the right time, and the potential to still be pulling long after the Power peaks.
The thing that does set my combo apart is the GVod being used as a splitter. While most of you 93 mph streeters with automatics and 3.23s are just thinking of shifting into third, at 93mph; I'm already at the top of my FOURTH gear-ratio selection, which was;
a faster-than-lightning electric shift, rpm drops to .78=1300rpm
followed by a straight back 1-2 manual shift, rpm drops to .80=1200rpm
followed by another electric shift; again to .78=1300 .
and, I still have,
Third, Fourth, and four-Over left.
After the traps, still being in od, I just shifted from Second to Fourth, where 93 is 3200, and let compression braking drag my speed down.
It works almost as good on city streets, except I only need one gear most of the time; could be Second; 50mph =4300, or could be First-over; 50=5300
Now, that's worth a brag, on the GVod!