Ax15 Trans
and the 2-3 shift is a big rpm drop.
and this can be seen right here in the splits
Looking at the ratios
3.83-2.33-1.44-1.00-.79, splits of
---.61--.62--.69---.79
It could be fun, at least until it breaks.
I could certainly see a 4 cylinder having trouble with that.
For a fun SBM streeter, IMO, you need to set it up, to be at or just over the power-peak, at or near 60mph in Second gear. If you have to shift into Third before that, your car will be slower.
With 26.5" tires (83.25"roll-out) and a power peak at 5000 you would need an overall reduction gear of
1/{ (60 x 1056)/(83.25 x 5000)}= 6.57 ;
So then, with the AX15 having a Second gear ratio of 2.33, you would need a rear gear of;
6.57/2.33=2.82 rounds to 2.94s, which would get you 5213rpm@60mph/ perfect..
And your starter gear would be 2.94 x 3.83=11.26 also perfect.
And 65= 1915 which is a lil low for a cam that peaks at 5000 which is gonna be about a
[email protected], but you can buzz it up to say 71mph at 2100 and there ya go.
Now in normal driving, the distant 2-3 shift is still distant, but any hi-torque V8 with a small cam will be able to deal with it.
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Just for comparison,
Here is a fun bunch, my bunch
3.09-1.92-1.40-1.09-.78. splits of
--.62---.73---.78---.71od
Now before some cranky old man comes around; I am not advocating that you need a combo like mine and no other; I am just talking about ratios and fun splits!
Notice the first three progressive splits, and then a hefty drop into overdrive. That's the thing that makes a manual transmission fun. Is there a 5-speed out there like this? IDK ...... There wasn't in 2004, well the Richmond was there; but I use my GVod as a splitter and make my trans a very close ratio 6 speed.
3.09-
2.41-1.92-
1.50/1.40
-1.09/1.00-
.78od split gears in red; with splits of
---.78---.80--.78---------------.52 there ya go.