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Old 07-25-2009, 12:45 PM   #366
PQ
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Drives: 2010 Supercharged SS
Join Date: Apr 2008
Location: Mobile, AL
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Quote:
Originally Posted by rpepka View Post
Same with Randy's Car (irpq11) His wife's car is kicking his butt with a little 6 banger, Right Randy?

We are getting beat by 300hp Mustang GT's. Our 0 to 60 times are between 6 and 7.5 seconds. Their is a serious problem, weather, humitity, uphill or downhill.
She beat me pretty bad that day. We're going to do it again today or tomorrow. This time she's driving instead of my buddy. MAN I hope the results are different.

And the constant here is that if it's the weather conditions inhibiting our cars then it seems to be hitting our cars WAY worse than other cars.

Quote:
Originally Posted by solo40oz View Post
irpq11 -
Do you have the ability on the DL app to show the Gs only, with the y axis showing the actual value of the Gs? (I see in the results, it shows the max Gs, but you can't see the value for the entire run). I think an interesting experiment (and something fun too!) would be to do like 5-6 runs every day this week to see how consistent/inconsistent your car pulls (Gs is the data you want to observe).

1) make sure your runs are consistent - do all in the same mode (whichever you prefer between D, M, competitive)
2) each time you make a run, check the weather and record it - temp, humidity, etc...
3) if the iPhone shows you the Gs in each direction at idle, try to adjust the position to get it level (Gs as close to 0 as possible) - also, try to make sure your iPhone is stable during the run..if it's flopping around during the pull, it's going to skew your results
4) make your run at the same place each time, and if possible, do a run in each direction to compensate for non-level surfaces

The interesting thing will be if you have some major deltas in a sequence that was performed on the same day - and might be useful info to share with the GM guys when they finally look at your car. If you don't see anything weird, at least you will have established a baseline with known variables.
iPhone will only let you do the max Gs. I don't trust the app enough to use it as data for GM. I can't wait to use it when I finally get to the track. I wanna use the iPhone AND get the track times. Then compare.

I have the iPhone held down solid.

Quote:
Originally Posted by Ltdodge View Post
i agree with you...if there is such a difference in weather and temps the other cars should also see those effects...they should not be beating you
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