[edevlin]

"Sorry I should have explained, the two graphs are two versions of the tweeks that were done to the chip....."


Ed


"To me, the graph looks like the variation between the two lines is within the margin of measurement error."



I would certainlly agree that the difference in the two graphs I showed could, and likely is a result of measurement error. But I have been impressed with how close the numbers are on the dyno pulls I have done (all at the same shop over a 3 month or so period). Numbers I have gotten were something like this:

Baseline Run: NO DATA.....I know, I know.....

Chip + Intake + 17" stock wheels: 198hp

Chip + Intake + Dansk Sausage muffler + 17" wheels: 197 HP

Chip + Intake + headers/cats/stock muffler + 17" wheels: 203 hp

Chip + Intake + Headers/Cats/Stock Muffler + 18" wheels: 201 hp


Those runs represent a small sample size, but the correlation between the kinds of things done to the car and the HP seem to be pretty close. I understand that the different runs were done (all with a warm engine) under different environmental temperature and humidity conditions, but the dyno tech said the software adjusts for the different environmental conditions.

OK, here is what I am hoping to do this summer when the folks at Autothority Pitstop move to their new location outside of DC and set up their dyno. We have been planning for some time now to fine tune the chip I got from them real-time to my car, but before they start I will see if I can get them put the stock programming back in and I will do that missing baseline dyno run.

We can then put back in the current version of the chip I am using and we will try to tweek it. I would do that now if they had their dyno working but it will probably be 3 months until it is online. BTW, I am not concerned with peak HP, come on, this is a 2.7L car. What I am interested in is responsiveness and setting up the car for maximum efficiency with high octane gas, but not at the expense of abusing the car, fun stuff.....


Ed

:dance: :dance: :dance: