Car & Driver Instrumented Test of 2020 Si

cammyfive

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Drake

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Slower than the 2017? Interesting. Not testing on the same day is certainly a factor, but it does suggest the gearing change has little measurable difference on performance. Also all the sensing equipment seems to have added 7lbs
 
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cammyfive

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Slower than the 2017? Interesting. Not testing on the same day is certainly a factor, but it does suggest the gearing change has little measurable difference on performance. Also all the sensing equipment seems to have added 7lbs
It seems 0-60 is slower with the revised gearing but 1/4 mile times see equal or a tiny bit quicker. Of course, different testing days and drivers certainly introduce a large margin of error.
 

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The shorter gearing will not make the car "quicker", but more responsive off the line, and more responsive at highway speeds in 5th and 6th gear. The trade off is a lower top speed and a little bit more engine noise, which they probably dampen. My IS350 has a Power mode that makes the car way more responsive off the line by better throttle response and allowing the transmission to go to redline and hold revs. 0 to 60 it's a bit faster, but quarter mile ends up being the same. It all evens out in the end. Lower gearing will for sure make the car feel quicker.

The extra weight and maybe the ambient temp and road conditions may be what caused the lower numbers
 

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As for the 2020 being a bit slower for 0-60:

Just a guess, but perhaps the shorter gearing requires a shift to third gear to hit 60, whereas the old gearing could hit 60 in second gear? I don't know the max speed of second gear, but requiring a shift to third could account for the slower time.
 


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As for the 2020 being a bit slower for 0-60:

Just a guess, but perhaps the shorter gearing requires a shift to third gear to hit 60, whereas the old gearing could hit 60 in second gear? I don't know the max speed of second gear, but requiring a shift to third could account for the slower time.
Nah. The older version still required that same upshift just before hitting 60.
 

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As for the 2020 being a bit slower for 0-60:

Just a guess, but perhaps the shorter gearing requires a shift to third gear to hit 60, whereas the old gearing could hit 60 in second gear? I don't know the max speed of second gear, but requiring a shift to third could account for the slower time.
Yep, fuel cutoff is exactly the same. I believe it's 58 or 59 mph in 2nd gear from 2017 thru 2020. I hit it so many times when I owned my 2018, it's what limits 0 to 60 times and why most people can't get past 6.5 seconds
 

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Weird. the 2017-2019 has better accel in 2 of the 3 tests I thought the shorter gearing would give an edge to the 2020

2017 vs 2020
Rolling start, 5–60 mph: 7.4 -->7.5 sec (2017 wins)
Top gear, 30–50 mph: 9.9--> 11.0 sec (2017 wins)
Top gear, 50–70 mph: 8.4 -->8.2 sec (2020 wins)
ÂĽ-mile: 14.9 sec @ 93 mph (same)

Note: data from both is from Car And Driver
2017
https://www.caranddriver.com/review...-vs-2018-volkswagen-golf-gti-comparison-test/

2020
https://www.caranddriver.com/reviews/a32770462/2020-honda-civic-si-by-the-numbers/
 

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To me, what's weird is that due to the gearing and that 2nd-3rd shift, the more potent Si is only a hair quicker to 60 than a base 1.5T CVT.
 

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To me, what's weird is that due to the gearing and that 2nd-3rd shift, the more potent Si is only a hair quicker to 60 than a base 1.5T CVT.
That's probably due to the CVT being more efficient at shifting. Todays automatic transmissions, CVT's and DCT's can outshift any MT. One of my friends said it perfectly, you don't buy a Manual to win races, but to make yourself more connected to the driving experience. Before the pandemic, a guy in a Veloster N tried to jump the freeway light (I was green, he was red), I floored it and was able to get into the merging lane comfortably before him. He ended up getting off the same exit as me, pulled along side and apologized for trying to jump the light and told me he mis-shifted and that is why he fell behind (I believe him, but I'm pretty sure I can take a Veloster N even if he shifted perfectly). Basically the best of MT drivers are still prone to human error, which AT are way less, although a badly programed AT is always possible
 
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gtman

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Oh, I know all that.

I guess my point being, the gap in acceleration from a "regular" Civic to an Si has always been fairly high. The last gen Civic Si probably ran a 0-60 that was at least two seconds faster than the other models.
 

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Oh, I know all that.

I guess my point being, the gap in acceleration from a "regular" Civic to an Si has always been fairly high. The last gen Civic Si probably ran a 0-60 that was at least two seconds faster than the other models.
I'm guessing the turbo in all 10th gen Civic's except the Sport 2.0 narrows the gap because the 2.0 NA Civic falls way behind all the Civics
 

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Why does a 'Rolling start, 5–60',
take longer than a 0-60 mph?

C/D TEST RESULTS
Rollout, 1 ft: 0.3 sec
60 mph: 6.4 sec
Rolling start, 5–60 mph: 7.5 sec
 

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Why does a 'Rolling start, 5–60',
take longer than a 0-60 mph?

C/D TEST RESULTS
Rollout, 1 ft: 0.3 sec
60 mph: 6.4 sec
Rolling start, 5–60 mph: 7.5 sec
I'm pretty sure C&D is launching their test cars at takeoff. I'd guess that's the difference (compared to stomping on it while moving a 5 mph).
 

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