Brian,
Ok I found the MM link: According to MM we have
http://www.mustangmonthly.com/howto/131 ... ewall.html
“Before” test: (RWHP w c4)
Torq 64 at 2400
Torq 125 at 3300
Powr 79 at 3500
“After” test: (RWHP w c4)
Torq 113 at 2400
Torq 144 at 3600
Powr 108 at 4500
And inferring from this thread,
“After” test: (RWHP w T5)
Torq 164 at 3600 (+20 vs c4)
Powr 123 at 4500 (+15 vs c4)
A few observations right away:
1. The Dynojet in my experience gives numbers that can be artificially low due to its inertial operation.
2. In the “Before” test, something is really sick in that motor. The torq at 2400 is WAY down, and the peak HP RPM is also way down. Rare to see a dyno test where peak power is only 200rpm up from peak torq.
3. That little 1.02 Autolite 2100, at ~176cfm at 1.5” Hg, is actually SMALLER than the Pinto carb with its 203cfm at 1.5” Hg. But since I suspect the Pinto carb had some major problems, this is only the beginning of the story.
4. One Gonkulator conclusion is that a 1.12 Autolite 4100, at ~500cfm, would add over 30hp gross and about 17 RWHP to the current configuration.
5. The Gonkulator also likes cam advance of maybe 2A instead of the current 5A. But that is only worth 1 or 2 ticks.
I would like to provide some Gonkulator insight, but first really need a couple missing numbers:
* Rear gear ratio in the car, e.g. 2.83 or 3.20 etc, assuming it’s a stock 7-1/4” six rear.
* What trans gear was the c4 dyno test done in, eg 2nd?
* Same for the T5 dyno test
* Also need to confirm the T5 gear ratios eg 2.75, 1.94, 1.34, 1.00, 0.74 or other?
* What was the dynojet ramp, eg 1000rpm/second or 500rpm/second, etc, this matters for the inertial corrections
I think the car will run a lot better than the Dynojet numbers indicate, especially with a good carb on top. And in any case I think that would be the next step, maybe even get some timeslips with that tiny 2bbl carb, then add a serious carb and watch it get a whole lot faster.
Edit, ok found it, 3.40 gears :mrgreen:
viewtopic.php?f=1&t=69537&p=533069#p533069
So now I am assuming the Dynojet was done in 2nd gear for the c4 and 3rd gear for the T5 at about 250rpm/second rise.
The car Gonkulates to be about 2.5 seconds and 12mph faster in its final 4bbl T5 configuration. A fun ride.