2.0L CivicX 2.0L Tuning - BIG Gains Confirmed For The Second Time

relentlessX

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I've been waiting for this! Thank you!

Do you know if the powerband/output will be similar for the CVT?

Sorry for this question, I'm new to all this, so all I would need to do is identify my ecu number to make sure it applies, purchase an KTunerFlash, use my laptop with the KTunerFlash and load it via the OBDII port?
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I've been waiting for this! Thank you!

Do you know if the powerband/output will be similar for the CVT?

Sorry for this question, I'm new to all this, so all I would need to do is identify my ecu number to make sure it applies, purchase an KTunerFlash, use my laptop with the KTunerFlash and load it via the OBDII port?
@relentlessX In the past I think the CVT is shown to lose a small percentage of horsepower but on the flip side the CVT is able to spend more time at peak power VS. the MT.
 
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I've been waiting for this! Thank you!

Do you know if the powerband/output will be similar for the CVT?

Sorry for this question, I'm new to all this, so all I would need to do is identify my ecu number to make sure it applies, purchase an KTunerFlash, use my laptop with the KTunerFlash and load it via the OBDII port?
CVT has more drivetrain loss, so you'll see less power to the wheels than manual.

Yes, verify your part number and grab a unit to flash with! We have tutorial videos in our online help section.
 

cheng115

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Hello Civic X enthusiasts and Civic K20C2 fans,

Those who have been a bit skeptical as to what a tune really accomplishes with the K20C2, it's not without reason. When I tuned the Civic K20C2 engine for the first time the ridiculous drop in the power curve from the factory just never sat well with me. It looked downright awful. I could not imagine Honda putting a vehicle out tuned like that. I never posted dyno results because of this. While gains were obviously present, what if they weren't 100% accurate? I certainly don't want to misrepresent what we do here and I certainly don't want to misinform customers who may be looking... For anyone that asked about gains we mentioned a conservative figure of "10whp gains in the power dip by lowering VTEC and altering other parameters".

Well, I finally got another Civic K20C2 MT to verify our original results and try to push it a little further with what I've learned about the logic on this ECU since our original tuning session. It did the exact same thing on the factory pull - a huge dip in the power curve. I was able to achieve even better results this time around, as I picked up some additional power in the heart of the power band. Take a look at our dyno session.



Now I'm happy to post our latest dyno sheets! Up to 22 WHP / 18 lb-ft in the heart of the power band and 7 WHP peak to peak. It's no longer a debate whether tuning is worth it on the NA 2.0L and I imagine the upcoming @RV6 downpipe will help even more.

For those who already grabbed a unit and trusted our word, thank you and I'm so glad we were able to solidify this for you. For those of you who will now become a part of the family... welcome aboard. We're looking forward to having you here.

The latest tune will be in the next update of the software.

Thanks for taking a look!
J.R. - KTuner

K20C2GAINS.jpg

K20C2PTP.jpg
Such a huge difference! You really feel the improvement when you hit VTEC. Thanks @KTuner , so much fun to drive!
 


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I wonder what they ended up changing in order to fix that big drop
Timing and mixture changes. Which only provide gains for 20+ year old cars, unless you stop caring about reliability or fuel economy on a new Civic.

I'm sorry, but an NA Engine in an unmodified car is not going to see any safe performance gain from ECU Tuning for the money unless the manufacturer has a defective product or has monkeyed with something like the valve timing at the high rev range where a short-lived droop hands drivers a placebo that makes their butt dyno register some sort of performance boost. Redline on this engine is 6700rpm, and peak power is supposed to be 158hp at 6500rpm.
NA owners would be better served to pool their effort and money toward a class-action if Honda slipped and misstated something so incorrectly. Otherwise, there must be an important design consideration to cause an NA Tune to show anything but a poor application of money. Something in the engine must trip over itself when the detonation rate increases at the highest rpm range, or the variations in fuel quality available across regions where the car is sold were shown to cause knock in enough cases to warrant what those graphs show. There is no good reason otherwise.
I bet my mustache that whatever goes into one of these NA Tunes that works on a handful of cars, if applied to hundreds of the same model across North America will cause problems at a rate that should not be ignored. Knock, detrimentally mucking with the AFR, and/or reduce the reliability vs. stock.
 
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Timing and mixture changes. Which only provide gains for 20+ year old cars, unless you stop caring about reliability or fuel economy on a new Civic.

I'm sorry, but an NA Engine in an unmodified car is not going to see any safe performance gain from ECU Tuning for the money unless the manufacturer has a defective product or has monkeyed with something like the valve timing at the high rev range where a short-lived droop hands drivers a placebo that makes their butt dyno register some sort of performance boost. Redline on this engine is 6700rpm, and peak power is supposed to be 158hp at 6500rpm.
NA owners would be better served to pool their effort and money toward a class-action if Honda slipped and misstated something so incorrectly. Otherwise, there must be an important design consideration to cause an NA Tune to show anything but a poor application of money. Something in the engine must trip over itself when the detonation rate increases at the highest rpm range, or the variations in fuel quality available across regions where the car is sold were shown to cause knock in enough cases to warrant what those graphs show. There is no good reason otherwise.
I bet my mustache that whatever goes into one of these NA Tunes that works on a handful of cars, if applied to hundreds of the same model across North America will cause problems at a rate that should not be ignored. Knock, detrimentally mucking with the AFR, and/or reduce the reliability vs. stock.
I'm sorry, but this couldn't be farther from the truth. We barely touched timing or fueling on this vehicle, as not much was needed, and outlined some of the changes we did make right in our post. While the factory may have been dulled down for low grade fuel all over the country, our tune is outlined as 91+. The changes are appropriate, safe, and make a very noticeable difference. If you think there are no safe gains to be had on a factory NA car, even a performance model like the 12-15 Si, you simply haven't done your research.
 


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Anyone knows where is the best tune up shop in los angeles area i have a civic 2.0 lx and want some Ktuner in it
Talk to Bisimoto or KVTuned.
 

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Hello Civic X enthusiasts and Civic K20C2 fans,

Those who have been a bit skeptical as to what a tune really accomplishes with the K20C2, it's not without reason. When I tuned the Civic K20C2 engine for the first time the ridiculous drop in the power curve from the factory just never sat well with me. It looked downright awful. I could not imagine Honda putting a vehicle out tuned like that. I never posted dyno results because of this. While gains were obviously present, what if they weren't 100% accurate? I certainly don't want to misrepresent what we do here and I certainly don't want to misinform customers who may be looking... For anyone that asked about gains we mentioned a conservative figure of "10whp gains in the power dip by lowering VTEC and altering other parameters".

Well, I finally got another Civic K20C2 MT to verify our original results and try to push it a little further with what I've learned about the logic on this ECU since our original tuning session. It did the exact same thing on the factory pull - a huge dip in the power curve. I was able to achieve even better results this time around, as I picked up some additional power in the heart of the power band. Take a look at our dyno session.



Now I'm happy to post our latest dyno sheets! Up to 22 WHP / 18 lb-ft in the heart of the power band and 7 WHP peak to peak. It's no longer a debate whether tuning is worth it on the NA 2.0L and I imagine the upcoming @RV6 downpipe will help even more.

For those who already grabbed a unit and trusted our word, thank you and I'm so glad we were able to solidify this for you. For those of you who will now become a part of the family... welcome aboard. We're looking forward to having you here.

The latest tune will be in the next update of the software.

Thanks for taking a look!
J.R. - KTuner

K20C2GAINS.jpg

K20C2PTP.jpg
I’m sure I’m late to this thread, however, are these dyno numbers of 150/152 the numbers to the wheels before the tune or after?
 
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I’m sure I’m late to this thread, however, are these dyno numbers of 150/152 the numbers to the wheels before the tune or after?
The graphs show stock (red) and tuned numbers (orange) overlayed, to the wheels. One highlights the biggest gains seen and one highlights the peak to peak gains. They're the same graphs otherwise.

Has a tune been released specific to the 2.0 w CVT?
CVT is supported.
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