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acceleration comparison 545,550

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Old 07-02-2008, 07:09 AM
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Originally Posted by Hyper_545i' post='614298' date='Jul 2 2008, 07:56 AM
Grogan545,

Have you ever tested quarter mile times for the 545i?
I have many 1/4 mile tests.The best I did on my test road was 13.25 at 105.5.I also went to an NHRA drag strip and my best was 13.64 at 103.22.The weather was overcast and humid at the drag strip,not the best for performance.I had my GT2 timer hooked up when I was at the drag strip and the largest discrepancy between the strip timer and my GT2 timer was .09 secs.My 0-60 time at the drag strip on my 13.64 run was 5.07.When I did the 13.25 run my 0-60 time was 4.78 secs.I no longer do 1/4 runs on my test road because there is a sharp bend not far past the 1/4 mark and I don,t want to put undue wear on my brakes.I know by my 1/8 times and speeds my aprroximate 1/4 times.1/8 times in the 8.70's translates to mid 13 times in the 1/4,8.60's time for the 1/8 translates to low 13 secs for the 1/4.
Old 07-02-2008, 07:12 AM
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What were your 60' times?
Old 07-02-2008, 07:13 AM
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How were you shifting? Manual mode on Step DS? What did you launch at? Just curious, as I am planning to head down to the track with my brother to settle a little sibling rivalry. Nothing crazy, just a couple of passes. Any tips?
Old 07-02-2008, 07:13 AM
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Originally Posted by vegastrashed' post='614407' date='Jul 2 2008, 11:12 AM
What were your 60' times?
+1 Excellent question VT!
Old 07-02-2008, 07:17 AM
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Originally Posted by Hyper_545i' post='614409' date='Jul 2 2008, 09:13 AM
How were you shifting? Manual mode on Step DS? What did you launch at? Just curious, as I am planning to head down to the track with my brother to settle a little sibling rivalry. Nothing crazy, just a couple of passes. Any tips?
I did in fully Manual Mode. Also I think the weather involves a lots (cold = more faster, Hot = more slow)
Old 07-02-2008, 07:26 AM
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Originally Posted by Hyper_545i' post='614409' date='Jul 2 2008, 11:13 AM
How were you shifting? Manual mode on Step DS? What did you launch at? Just curious, as I am planning to head down to the track with my brother to settle a little sibling rivalry. Nothing crazy, just a couple of passes. Any tips?
I'm interested in that as well. It seems weird...maybe its just me but although DS (Auto and Manual) sounds faster D still feels faster once you get up past 30. Unfortunately no plans to head to a track anytime soon and get some real numbers Where are you going?
Old 07-02-2008, 07:34 AM
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Originally Posted by Brit_in_NJ' post='614424' date='Jul 2 2008, 11:26 AM
I'm interested in that as well. It seems weird...maybe its just me but although DS (Auto and Manual) sounds faster D still feels faster once you get up past 30. Unfortunately no plans to head to a track anytime soon and get some real numbers Where are you going?
Probably Atco.
Old 07-02-2008, 09:32 AM
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Originally Posted by vegastrashed' post='614407' date='Jul 2 2008, 11:12 AM
What were your 60' times?
At the track my best 60' times were 2.02 and 2.05,but on my test road I have got as low as 1.91.This is with the stock Googyear RSA tires.
Old 07-02-2008, 09:35 AM
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Originally Posted by Hyper_545i' post='614409' date='Jul 2 2008, 11:13 AM
How were you shifting? Manual mode on Step DS? What did you launch at? Just curious, as I am planning to head down to the track with my brother to settle a little sibling rivalry. Nothing crazy, just a couple of passes. Any tips?
Best times at the track were with DTC/DST off,brake torque to about 1000 rpms in DS,let the trans shift itself at redline.On my test road the traction is better and I brake torque to about 1500 rpms but still in DS and let it shift at redline.
Old 07-02-2008, 02:26 PM
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Why the 550 weigh more than the 545?

Originally Posted by grogan545' post='614542' date='Jul 2 2008, 01:35 PM
Best times at the track were with DTC/DST off,brake torque to about 1000 rpms in DS,let the trans shift itself at redline.On my test road the traction is better and I brake torque to about 1500 rpms but still in DS and let it shift at redline.
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