Dyno Numbers

[Jianlun]

I was interested not in the peak hp numbers but the shape of the torque curve. especially where in the curve the car is at, when in 4th, 5th and 6th gear (because thats what you feel when you put the hammer down to overtake the lane hogger but lazy to downshift).

so i compiled and plotted the various torque curves of ten dyno charts i could find online just to see if they correlate. and they generally do. its not all the dynos that have been done, just ones with clear enough torque curves for me to plot (and i not active in Facebook, IG etc so i would have missed posts there). the plots at the bottom of this post. uncorrected is whatever i read off the posted graph and plotted into my graph. corrected is me exercising some freedom to scale the graph (apply my own TCF if you like) to fit them better, again i wanted to hopefully see clear/correlated peaks and troughs, not concerned with actual numbers.

1st Peak is 3200 to 3300rpm.
Trough is 4000 to 4200rpm.
Fast Recovery back up to (almost) 1st peak by 4500rpm.
Nice plateau all the way till around 6400 to 6500rpm.

Satisfied that savagegeese/Dynojet is a representative curve, i then used that to plot the "torque at wheels" for 4th, 5th and 6th gear. and the stock 4.1 and (what i likely will go for) 4.3 FD. its in kph, sorry. mph = 0.62 x kph, or very roughly 2/3.

i have the .xlsx if anyone wants just DM me, i am idiot at Google sheets so i tried importing the .xlsx to G sheets but everything didnt seem right.

[Jianlun]

And, the very correlated dynos are:

[Jianlun]

I added in the OEM quoted numbers (as per the graph from Toyobaru official marketing materials, and probably the torque/hp curve that is displayed on the dash). Guess they are honest with the peak values, and maybe a tad optimistic with the numbers at the dip. And a general 200rpm or so offset up the rev range.

[Jianlun]

Lastly, compared the OEM quoted values with the Dynapacks. Rev range that the peaks and dips occur seem close. maybe a characteristic of Dynapack (and whatever dyno the OEM uses). I not trying to start a conversation on dynos and their characteristics, just a random observation.