Opinions on 4 speed with OD
Ok then;
About the biggest tire you can put on an A, without modifications, is about 27.5"
the smallest 14" that anyone is likely to install is 24.5..
That is a range of 27.5/24.5=about 12%, which is about ONE gear-change; say from 3.73s to 4.10s. Therefore, I did not say that OP had 3.91s, but merely said
"points to".
However;
IDK anyone who installs 24.5s on the back of a muscle/pony/classic/whatever, car, nor do I know of any 27.5" street-tires. Therefore, a tire in the range of 26 to 27 inches is a pretty safe bet to use in a thread like this.
Furthermore Op clearly stated, not in so many words, that the tach-reading might be a little iffy.
Therefore, some assumptions HAVE to be made. For instance; since OP did not mention the rear gear ratio, I assumed that he did not know it. Why waste a post to ask him? Why waste his time making him go out and figure it out? Math is just way easier.
OP said;
Any and all thoughts are welcomed
AND the title of the thread is;
Opinions on 4-speed with OD
Therefore, since I have thoughts,Plus opinions ..... Plus experience, I gave them; Furthermore;
I even introduced my post by specifying;
The following are my opinions based on 4 years of trying to be happy with it.
See; that is a thought and/or an opinion.
It was not I who asked YOU for your thoughts, as to what I should or should not post,
nor was it I who asked for your opinion as to my experience.
Post your own experience, and let OP figure it out.
But since you asked; and I assume that you're not too good at math, or are just lazy, or vindictive, grumpy, or just not getting any;
For 50mph = 2500 +/-200rpm, and tires ranging from 24.5 to 27.5; all the possible rear gears are from ~3.35 to ~4.50 ..................
Obviously some assumptions had to be made.
Up the middle is this;
50= the average,2500 x the average of 24.5 to 27.5, x pi(3.1416);
divided by 1056 x 50 =3.8675,
in Mopar-ese, this rounds to,
wait for it.......
3.91s
You're welcome
.
