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Interesting Dyno Comparison

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Old Feb 15, 2014 | 04:47 AM
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Default Interesting Dyno Comparison

I thought you might enjoy this. My S2000 dyno is very old (2005), but this shows how a pump gas GT3076R S2000 compares with a Cadillac CTS-V (stock M6). The first CTS-V run was ~10-15 hp higher, but the RPM pickup didn't work properly and so you get to see a second, slightly heat-soaked run. One nice thing about a S2000 with an A-A intercooler is that heatsoak doesn't dramatically affect power run to run.



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Old Feb 15, 2014 | 07:43 AM
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Exactly. With the gearing differences, the torque at the rear wheels is very similar. The S2000 has much shorter gearing compared with a CTS-V, but with the increased redline, shift points are at similar speeds. While the dyno shows the power coming on later, the actual driving experience is remarkably consistent.

Tim
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Old Feb 16, 2014 | 03:11 PM
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That is interesting! The S2000 picks up power where the Caddy drops off. Yet, both produce similar power.
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Old Feb 20, 2014 | 02:37 PM
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Graph it by speed, that's a better comparison of what will happen on the street
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Old Feb 20, 2014 | 03:51 PM
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Here's one with mph.
The S2000 made more power on earlier runs in a lower gear, but this one had the right speed range to compare with the CTS-V. The lower gearing ended at ~ 95 mph.
This is the first CTS-V run, before it heat soaked which is why it shows more power than the previous dyno graph.




Here's a second graph showing the shift point on the previous gear in the S2000. I wish I had a lower gear run from the CTS-V for comparison.



Tim
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Old Feb 20, 2014 | 04:25 PM
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Nice. If the 2 cars weighed the same the turbo s2000 motor'd car would win in a drag race
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Old Feb 22, 2014 | 01:55 PM
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Ctsv is a fat pig though. S2k ftw
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