What is an accurate 1/4 mile time for this car stock?

Honda_RacerX

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Apologies for the tunes on that dashcam video, probably best to keep the music to a minimum but it helps my reaction time for some dumb reason. Loud music equals < .500. Stock I routinely saw 14.9-15.2. With only VSA disabled, times were much more around 14.6-14.8. Running Ktuner 21.5 I routinely see 14.4 around 98mph.

IMG_20190815_185624.jpg
all that extra boost with the ktuner flash and it only give you an additional .2 second in the 1/4 mile?! might as well just keep it stock and reliable.
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aldo

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stock and reliable and good 1/4 mile times don’t go hand in hand, especially for any 4 cylinder car. 8 cylinders is what you need, for a car anyhow, super bike 2 or 4 cylinders will be fine. People don’t buy the Ktuner for 1/4 mile times but rather for the extra power everywhere else. For $400 I’m happy with it. If you’re doing 1/4 mile times with a turbo vehicle, which is essentially beating on the car, stock or with Ktuner, throw reliability out the window, can’t have both.
 

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What do you mean by this, the pedal dance?
Yes, I found that disabling the VSA using the pedal dance significantly improved the 60' times. Still on the crappy all season stock tires (30k+ miles) but they get a little more grip now that they are getting bald!
 
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maggs_10thgen

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all that extra boost with the ktuner flash and it only give you an additional .2 second in the 1/4 mile?! might as well just keep it stock and reliable.
I'd be happy around 14.2 to 14.5. Which is where this gen should've been around. I just stepped out of a RSX-S with 210hp. Even though the tq was low that thing ripped up high for a little NA 4 banger. They posted times for the 05-06 between 14.6 and 14.9. Some of the older gen Si s had decent times too. The trade off I saw here was the tune on the new Si. Very easily the car can start punching above its weight class with a simple flash.
 

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I'd be happy around 14.2 to 14.5. Which is where this gen should've been around. I just stepped out of a RSX-S with 210hp. Even though the tq was low that thing ripped up high for a little NA 4 banger. They posted times for the 05-06 between 14.6 and 14.9. Some of the older gen Si s had decent times too. The trade off I saw here was the tune on the new Si. Very easily the car can start punching above its weight class with a simple flash.
Did you just happen to miss any of my posts or are you just choosing to ignore it? This gen Si is just as fast through the quater mile, 14.5 seconds is possible stock and has been done, which is about the best time you can see from any Si past or present. Thats very respectable for such a small litre 4 banger. I know someone else who has also done those numbers outside of SIX Civic, so yes it is possible. 14.6-14.8 seconds seems to be where the average is and can be achieved much easier though.
 


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What do you mean by this, the pedal dance?
This is what @PRL Motorsports posted.

"The procedure to turn vsa off is
1. Turn car to on position
2. Parking brake off
3. Press and hold brake pedal
4. Turn traction control on and off
5. Parking brake on
6. Release brake pedal
7. Turn traction control on and off
8. Press and hold brake pedal
9. Turn traction control on and off

The VSA light will light up and another similar but with the letters "OFF" will be blinking."
 
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maggs_10thgen

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Actually, your RSX-S only made 201 HP by current standards. Just pointing that out.
Wrong

2002-2006 Acura RSX Type S: The RSX Type S joined the family in 2002, powered by a new 2.0-liter i-VTEC 4-cylinder with 200 horsepower (upgraded from 160 hp) connected exclusively to a 6-speed manual transmission. In 2005, the RSX Type S received a power increase to 210 horsepower, along with styling changes that included an eye-catching larger rear wing

The old school K was impressive. Even with much less tq the car is still a little faster then the 2019 Si stock for stock. They're both around the same weight too.
 
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SI_honda_2k17

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15% drive-train loss seems to be the common estimate

Edit: Here's an example of a stock on dyno by MAPerformance
Seems like the 15% that everybody is refering to is outdated.
Here’s an image i took from the last edition of Car and driver, they talk about it.
Still the SI engine is probably underrated a little bit, if we factor 5% to 10% loss, its still 210 to 220 hp if the dyno reading of 200hp at the wheel is right

Honda Civic 10th gen What is an accurate 1/4 mile time for this car stock? C907FEB6-F158-4CE3-B459-D9A4E68041EB
 

jakdotdot

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Wrong

2002-2006 Acura RSX Type S: The RSX Type S joined the family in 2002, powered by a new 2.0-liter i-VTEC 4-cylinder with 200 horsepower (upgraded from 160 hp) connected exclusively to a 6-speed manual transmission. In 2005, the RSX Type S received a power increase to 210 horsepower, along with styling changes that included an eye-catching larger rear wing

The old school K was impressive. Even with much less tq the car is still a little faster then the 2019 Si stock for stock. They're both around the same weight too.
Nope, the 210 number is from the old (pre-2005) SAE test. You can confirm this by looking at any review of the 2006 car which has the same motor and tune as the 2005 car.
 


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maggs_10thgen

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Here are 2 vids of the Si running through the 1/4 mile in 14.5 seconds bone stock.




Its a guy from this forum, his name is Six Civic on Youtube.
That's impressive!
 

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Nope, the 210 number is from the old (pre-2005) SAE test. You can confirm this by looking at any review of the 2006 car which has the same motor and tune as the 2005 car.
I concur. It did get a ~10 HP bump from the '04 to '05 model year. Then under the new standards, measured output dropped by 9. If they were to use the '06+ standard on '02-'04s, they would be rated under 200 HP. It's an easy mistake to make @maggs_10thgen since the Z1 engine was only around its last 2 years and if you never saw the change come out in '06, you'd of missed it.

The RSX Type-S had a 200 hp (149 kW) (2002–2004) K20A2 or 210 hp (157 kW) K20Z1 [12][13] (Labeled in 2006 as 201 hp (150 kW) due to SAE hp calculation revision)[11]

https://en.m.wikipedia.org/wiki/Honda_Integra_DC5

You can read up about it if you look up SAE J1349. In was revised later in '04 after the '05 model year numbers were already out.
 
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I concur. It did get a ~10 HP bump from the '04 to '05 model year. Then under the new standards, measured output dropped by 9. If they were to use the '06+ standard on '02-'04s, they would be rated under 200 HP. It's an easy mistake to make @maggs_10thgen since the Z1 engine was only around its last 2 years and if you never saw the change come out in '06, you'd of missed it.

The RSX Type-S had a 200 hp (149 kW) (2002–2004) K20A2 or 210 hp (157 kW) K20Z1 [12][13] (Labeled in 2006 as 201 hp (150 kW) due to SAE hp calculation revision)[11]

https://en.m.wikipedia.org/wiki/Honda_Integra_DC5

You can read up about it if you look up SAE J1349. In was revised later in '04 after the '05 model year numbers were already out.
Fair enough! I stand corrected fellas. All the car mags and what not had 210hp. Even still the motor was excellent and the times were the same or better than the Si. Cars are very close in weight too. The high rpm power band was nice in the S. Get up and go tq there's no comparison. The Si has it by a landslide. The overall car is light years ahead. If my priorities were different though, I would've kept the RSX-S too and made it a track car. But cars can be a money pit. Money you never get back!
 
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charleswrivers

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Fair enough! I stand corrected fellas. All the car mags and what not had 210hp. Even still the motor was excellent and the times were the same or better than the Si. Cars are very close in weight too. The high rpm power band was nice in the S. Get up and go tq there's no comparison. The Si has it by a landslide. The overall car is light years ahead. If my priorities were different though, I would've kept the RSX-S too and made it a track car. But cars can be a money pit. Money you never get back!
I loved my RSX type S when I had it and it still holds a special place in my heart. Every now and then I come across another one for sale and I have a moment where I contemplate stopping and looking at it... then remember I already have 4 cars and just have no need for a 5th car that'd be redundant with the Civic. It and a 8th gen Civic Sis are cars I constantly talk up to younger folks though looking for a fun and inexpensive ride though. They made piles of them and it almost seems like a rite of passage to have a 8000 RPM K-series engine. If anyone hasn't driven one... even if you don't necessarily want one... you should make friends with someone who has one and get them to take you for a ride. When you realize they're keeping their car revved out pretty much constantly past the redline of your present Civic and hear that engine scream... it's hard not to be wowed.
 

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Here's some calculators that give you a rough idea of horsepower based on quarter mile time or speed.

Engine Motor Horsepower Estimate From Elapsed Time Calculator
https://www.ajdesigner.com/fl_horsepower_elapsed_time/horsepower_elapsed_time.php

Engine Motor Horsepower Estimate From Trap Speed Calculator
https://www.ajdesigner.com/fl_horsepower_trap_speed/horsepower_trap_speed.php

This one calculates flywheel HP and wheel HP, and it’s a 10% loss according to their figures.
Horsepower Calculator From 1/4 Mile Stats
http://www.wallaceracing.com/hpcalculatorquarter.php
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