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PrePin · 10-08-2012, 01:55 PM

One Roush associate who is more on the business end says the axle backs and cold air induction equal 50 horsepower, but I personally have a hard time believing that, especially without a tune. WITH a tune, one would normally expect 15-25 hp from axle backs and CAI. Results vary depending on tune, and equipment.

Without a tune, I would anticipate roughly ten hp out of the two.

I am working on a new lower grill block for the coming months, I should be finished tonight with it.

Spd-Old--New
44-56.5--49.2
54-49.65-46.2
64-41.45-41.45
74-38.6--34.55

New Results North/South-score
44-52/46.4-49.2
54-47.6/44.8-46.2
64-45.4/37.5-41.45
74-37.1/32-34.55
*Start time 10:46, end time roughly 11:05. Start temperature 46 degrees F, end 48 degrees.

Old Results South/North-score
44-45.8/67.2-56.5
54-42.5/56.8-49.65
64-36.3/46.6-41.45+ A/C was on
74-34/43.2-38.6
*Start time 12:10, end time 12:46. Temperature was 87-90 degrees F, which was why we had the A/C on, and we forgot about it during the 64 mph run.

I am glad I made these numbers before, so I had a reference, because clearly from testing there is not a positive change. Please note that all of these were done one time, not multiple runs, and during the day (both on Mondays), so traffic was around, but not strong. I must also note, that while driving on the highway at 44 mph, in a 65 mph zone with cars doing 70+, so air resistance may vary.

I am thinking that my results presented by scanguage and car may not be accurate, and that the SGii may need a few fill ups before it returns to past accuracy. I have noticed differences in SC results, and car mpg estimates to actual results. I have started logging those in with my fill up data.

But either way, as long as I keep 30+ mpg per tank, I will be happy, especially rated for 29 mpg highway. I know mpg will drop with the coming winter, and putting on snow tires in the coming weeks. The belly pan will begin preparation soon, and I am most likely going to lower it when I switch to the 2014 Mustang GT OEM rims and tires come March/April of 2013.

Also, this is UltArc on my wife (PrePin)s computer.

10-08-2012, 01:55 PM	#5 (permalink)
PrePin EcoModding Lurker Join Date: Sep 2012 Location: United States Posts: 2 Thanks: 0 Thanked 0 Times in 0 Posts	One Roush associate who is more on the business end says the axle backs and cold air induction equal 50 horsepower, but I personally have a hard time believing that, especially without a tune. WITH a tune, one would normally expect 15-25 hp from axle backs and CAI. Results vary depending on tune, and equipment. Without a tune, I would anticipate roughly ten hp out of the two. I am working on a new lower grill block for the coming months, I should be finished tonight with it. Spd-Old--New 44-56.5--49.2 54-49.65-46.2 64-41.45-41.45 74-38.6--34.55 New Results North/South-score 44-52/46.4-49.2 54-47.6/44.8-46.2 64-45.4/37.5-41.45 74-37.1/32-34.55 Start time 10:46, end time roughly 11:05. Start temperature 46 degrees F, end 48 degrees. Old Results South/North-score 44-45.8/67.2-56.5 54-42.5/56.8-49.65 64-36.3/46.6-41.45+ A/C was on 74-34/43.2-38.6 Start time 12:10, end time 12:46. Temperature was 87-90 degrees F, which was why we had the A/C on, and we forgot about it during the 64 mph run. I am glad I made these numbers before, so I had a reference, because clearly from testing there is not a positive change. Please note that all of these were done one time, not multiple runs, and during the day (both on Mondays), so traffic was around, but not strong. I must also note, that while driving on the highway at 44 mph, in a 65 mph zone with cars doing 70+, so air resistance may vary. I am thinking that my results presented by scanguage and car may not be accurate, and that the SGii may need a few fill ups before it returns to past accuracy. I have noticed differences in SC results, and car mpg estimates to actual results. I have started logging those in with my fill up data. But either way, as long as I keep 30+ mpg per tank, I will be happy, especially rated for 29 mpg highway. I know mpg will drop with the coming winter, and putting on snow tires in the coming weeks. The belly pan will begin preparation soon, and I am most likely going to lower it when I switch to the 2014 Mustang GT OEM rims and tires come March/April of 2013. Also, this is UltArc on my wife (PrePin)s computer.