The Tuned Civic X Reliability Survey

gtman

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Everyone knows that tuning improves performance. But what about reliability and safety? I created this tuning survey thread to document just that. You can include pics, videos, dyno results and timeslips, if desired.

If you currently have a tuned 10th gen (or were tuned in the past), help the community and add a survey. Includes Civic Si, non-Si 1.5T, Type R and 2.0 NA models.

Please use the format below when posting your information:

Vehicle
: 2017 Civic EX-L sedan

Total tuned time: 26 months

Total tuned mileage: 14,000+ miles

Tuning device(s) used: Hondata CARB Flashpro, currently using KTuner V2

Tunes used: Hondata +6 and homemade +7.5 ~ KTuner Starter 21 ~ customized TSP Stage 1 for non-Si (current)

Fuel used: Sunoco 93 Ultra (exclusively)

Additional engine mods: PRL silicone hose / aFe Pro Dry S filter combo

Problems/issues: None

Driving style: Slightly speedy with aggressive bursts from time to time.

Tuning experience notes: This is my first time tuning and I've gone from total tuning novice to now feeling comfortable enough to help others with tuning. I've never had a mod transform a car like tuning has. The main reason I tuned was to reduce the feeling of turbo and CVT lag when quickly going from light to heavy throttle. Tuning has definitely reduced the lag by maybe 90% and gives me a completely different driving experience. My car went from a peppy commuter to a bit of a sleeper beast. My mpgs are only slightly lower since tuning. Mostly due to a heavier foot. :thumbsup:

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At the end of your post you can attach pics, timeslips, videos, dyno results, etc...

tip4.jpg

IMG_20190612_113827-01.jpeg


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TUNED CIVIC X RELIABILITY SURVEY STATS
(as of 5/23/20)

Total tuned participants: 249
Total tuned miles driven: 3,513,000 (estimated)
Most tuned miles: choo's '17 Sport Hatch (81,000+)

Tuned cars with major failures: 5 *
Percentage of tuned cars running reliably: 98.0% **

Transmission type: CVT (84); Manual (165)

Hondata used as tuning device: 61
KTuner used as tuning device: 202
JB4 used as tuning device: 1


Pro custom tune file used: 50
Most used non-base tune: TSP Stage 1 (94)

Most tuned vehicle: Civic Si
Most used fuel: 93 octane (134)
Popular mods: PRL Cobra, K&N drop-in

* 2 of the cars had failed CVT's (both replaced under warranty). 1 car had faulty injectors and a blown head gasket. 1 car blew an engine running an E35/meth setup. 1 car blew an engine on the racetrack.

** There were minor issues reported here and there with the stock clutch, an injector issue, some fuel trim and knock control funkiness depending on intake and gas used, etcetera. None of these issues were major.

Survey Notes: From the surveys taken so far, base tunes (on a more or less stock 10th gen) appear to be safe. Properly tuned, adding bolt-ons can be reliable, too. The issues seem to happen mostly when power output is pushed too high, owners attempt to self-tune, the car is continuously driven to the limit (like on the racetrack) or it's been abused. - gtman



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xRiCeBoYx

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Vehicle: 2018 Sport Hatch CVT

Total tuned time: 8 months

Total tuned mileage: ~7000 miles

Tuning device(s) used: KTuner v1.2

Tunes used: Dual calibration, 18psi tune, 21psi tune, 21psi with quick enables - improved responsiverness II/ramp II/advanced VSA (current configuration - map 1)

Fuel used: Chevron, Sam's Club, or Sinclair 91 octane. Maybe a few tanks of Shell 91.

Additional engine mods: DIY SRI with AEM DryFlow filter, fiberglass filter heatshield, and ram induction ducting from the driver's side faux vent opened up. Also have a muffler delete

Problems/issues: None. Maybe a heavier lead foot. Also smiles for miles. lol

Driving style: Mostly chill driving, slightly spirited, especially on inclined highway on-ramps. Not a huge fan of driving on eco-mode, but I'm bearing through it on this tank to see if it makes a difference. So far, no notable difference.

edit: underestimated my tuned mileage.

Edit 2: added other stuff

Edit 3: updated current tune config. Quick enables made a difference, for sure. Advanced VSA is much smoother, set my on the fly map quick enables to improved responsiveness & and ramp up II/responsiveness I & ramp up I/and factory for maps 1/2/3, respectively
 
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amirza786

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Vehicle: 2018 Honda Civic Si Sedan

Total Tuned Time: 10 months

Total Tuned Mileage: 10k plus

Tuning Device: Ktuner v1.2

Tunes used: Ktuner base 19.5/23.5, TSP stage 1

Additional Mods: Mishimoto Intercooler, aFe Takeda SS 3" performance exhaust

Problems/Issues: None
 

TypeSiR

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Vehicle: 2016 Civic EX-T sedan, CVT (automatic)

Total tuned time: 2 years 5 months

Total tuned mileage: 20,000+ miles

Tuning device(s) used: Hondata FlashPro; KTuner V2

Tunes used: Hondata +6 psi, KTuner OTS Stage 2

Additional engine mods: None

Problems/issues: None / uncontrollable laughing disorder when behind the wheel :)

Driving style: Granny
 
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SiFever

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Vehicle: 2019 Civic Si

Total tuned time: 0 months

Total tuned mileage: 0 miles

Tuning device(s) used: Nuthin

Tunes used: None

Additional engine mods: Bone Stock motor, OEM everything.

Problems/issues: Boring, fun factor is suppressed. Engine runs very quiet. No one can tell how awesome I am, nor how much of a try-hard. Photos of engine bay are pointless. Lacking in cool toys, cool factor is present, but lower than desired.

Driving style: We was just funnin', officer, we didn't mean no harm. Top speed around 116 southbound down the back side of the sunol grade, had some 'encouragement' from another driver.
 
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LilToTo17

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Vehicle: 2017 Civic Si

Total tuned time: 27 months

Total tuned mileage: 11,500 miles

Tuning device(s) used: Ktuner V2

Tunes used: Si Ktuner Basemaps, TSP Stage 1, Derek Robinson Etune

Additional engine mods: 27Won W1 Turbocharger (E-tuned by Derek Robinson on 91 Pump), Eman's Modified CMC, Ktuner V2, RV6 Catless dp and fp, Custom SS 3" exhaust with two vibrant ultra quiet resonators, PRL Race Si Cai, Agency Power Intercooler with CNT Racing Intercooler Piping, Perrin FK8 RMM, PRL SS Clutch Line, FX350 Clutch with stock dmf, Hybrid Racing Gold Full Short Shifter, and Carbon Fiber Mugen Shift Knob.

Problems/issues: No big issues except for FX350 Slipping from long time ago lol. Have a modified exedy single mass flywheel and Action Clutch working on making me a custom 6 puck.
 

jred721

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Vehicle: 2018 Honda Civic EX (2.0L)

Total tuned time: 16 months

Total tuned mileage: 5,000 miles (approximately)

Current mileage: 10,008 miles

Tune used: KTuner Basemap #1

Additional engine mods: K&N air filter

Problems/Issues: Absolutely none so far.

Fuel Used: 93 Octane since tune requires 91+ (Mostly Sunoco fuel)

Driving style:
Aggressive and more spirited driving when i'm in the mood for it or the road is open. Otherwise mostly normal driving.
 
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MGZ

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Vehicle: 2017 Honda Civic Si Coupe

Total Tuned Time: 18 months

Total Tuned Mileage: ~40k miles

Tuning Device: Flashpro, ktuner v2

Tunes used: Hondata OTS +6/+9, TSP stage 1, custom IMW tune w/ DRob

Fuel used: California 91

Additional Mods: PRL intercooler, PRL Cobra Intake, 27won turbo

Problems/Issues: Gas isn’t good enough where I live to really take advantage of map 3 (for tsp stage 1). Recently had a few misfire codes which might be attributed to some bad gas sneaking in. Spark plugs were changed at 48k miles and haven’t had any further issues. Also, I should really make it a priority to replace my stock tires...

Driving style: Most days, highway driving between 75~85mph switching between 4th, 5th, and 6th as needed. My commute home is a little over an hour and mostly uphill, so I typically will be in 5th around 3.5-4K rpm pretty consistently throughout the drive. Occasionally I can drive on the more aggressive side (like, 85+ in 4th), but most of my hard driving is generally pulls onto freeway on-ramps.

Update (11/15/19): started an e-tune with drob a few weeks ago and I’ve had to do some much more aggressive pulls for data logs than I’m used to. Probably the most hard driving my car has seen which means I think I’ve been pretty kind to it this far. Otherwise, each revision fees better than the last. Can’t wait to finish up the process!

Update (1/11/20): Custom tune from IMW has been great, lots of power everywhere under the curve. Unfortunately, I think I’ve softened up my clutch so I’m (hopefully) getting the retrofit kit installed next week along with the 27won turbo. I’ll probably back it down and take it easy for a while so everything can break in nicely, but will update again once I’m retuned.

Tuning experience: Like many others, this has been my first manual car and first tuning experience. Its been a lot of fun but definitely with some splotches of fear and paranoia. Even still, I 100% believe tuning this car is worth it. Custom tune provides plenty of shove, though I’m curious what I will find when I reach the other side (turbo + clutch). Think I’ll most likely call the quits on mods after that, with the exception of maybe an exhaust for some sound.
 
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OP
gtman

gtman

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  • Thread starter
  • Thread Starter
  • #9
Added the Driving Style category. Thanks to TypeSiR.
 

kytos

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Vehicle: 2017 Civic Sport (EUDM) L15BA MT

ECU: 5AN-G23

Gas: 98 RON E5 (Repsol or Shell only)

LTFT: -3 / -7

Total tuned time: 18 months

Total tuned mileage: 40.000 Km

Tuning device(s) used: Ktuner V1.2

Tunes used: All ktuner basemaps KTuner 21 (never agressive settings), current tune TSP Stage 1 (non-si)

Additional engine mods: Mishimoto Intercooler, K&N replacement filter.

Problems/issues: None

Driving style: Speedy with aggressive bursts from time to time, never push more than 2 PSI until engine is warm and never wot until ECT is 80ºC for a few minutes.
 
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David228cx

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Vehicle: 2018 Hatchback Sport MT, European 1.5 non si

Total tuned time: 6 months

Total tuned mileage: 32,000 km

Tuning device(s) used: Ktuner

Tunes used: Ktuner Stage 2, Ktuner Starter 21 with mild settings, TSP Stage 1 (non-si)

Additional engine mods: K&N Air filter, custom 2,5'' exhaust, PRL Intercooler,

Problems/issues: None

Driving style: Long highway commutes with speedy aggressive bursts from time to time. Speedy mountain passes from time to time. Proper warmup and cooldown times when starting and stopping the car.
 

Andre80

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I would add an ecu number and if they have received warranty extension letters, for oil dilution and injectors

also its own ltft

and gasoline TYPE
 
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Andre80

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Veicolo : 2017 Hatchback Sport MT, European 1.5 non si

Tempo totale sintonizzato: 12 mesi

Chilometraggio totale sintonizzato: 10.000 km

Dispositivi di sintonizzazione utilizzati: Ktuner

Melodie utilizzate : Ktuner Stage 2, Ktuner Starter 2
1 con impostazioni rigide, TSP Stage 1 (non si)

Mods motore aggiuntivi: NO


Problemi / problemi: a CEL light

Cold Start Sound


Stile di guida: aggressivo

Gas: 100 RON EURO
 
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PowerPerLiter

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Vehicle: 2018 Civic Si Coupe

Total tuned time: 19 months

Total tuned mileage: 24,000+ miles

Tuning device(s) used: Hondata

Tunes used: Hondata +6, +9, my own custom mapping

Additional engine mods: Mishimoto SRI

Clutch: Stock and never slipped

Problems/issues: none until very recently. Emissions issue coding for cylinder imbalances. Also gauge cluster going black and coming back on "piece by piece". Returning car to stock except the intake has made huge difference with gauge cluster (went from off and on 4 times a drive cycle of 30 minutes- to - has only happened twice in the past 2 weeks.... almost like it's recovering from something....).

It unfortunately hasn't helped the emissions code. Either my injectors are in early stages of failure, it needs plugs, cat is partially melted, 02 sensor damaged, or a combination of all the above. Haven't had it looked at yet.

Making the personal choice to never use a flash device on these cars again.

Hoping to get it fixed and trade for a '20 si coupe and planning to leave as stock as possible. Maybe an R.

Driving style: Slightly speedy with aggressive bursts from time to time.
 
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LilToTo17

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Vehicle: 2018 Civic Si Coupe

Total tuned time: 19 months

Total tuned mileage: 24,000+ miles

Tuning device(s) used: Hondata

Tunes used: Hondata +6, +9, my own custom "powerperliter" mapping

Additional engine mods: Mishimoto SRI

Problems/issues: none until very recently. Emissions issue coding for cylinder imbalances. Also gauge cluster going black and coming back on "piece by piece". Returning car to stock except the intake has made huge difference with gauge cluster (went from off and on 4 times a drive cycle of 30 minutes- to - has only happened twice in the past 2 weeks.... almost like it's recovering from something....).

It unfortunately hasn't helped the emissions code. Either my injectors are in early stages of failure, it needs plugs, cat is partially melted, 02 sensor damaged, or a combination of all the above. Haven't had it looked at yet.

Making the personal choice to never use a flash device on these cars again.

Hoping to get it fixed and trade for a '20 si coupe and planning to leave as stock as possible. Maybe an R.

Driving style: Slightly speedy with aggressive bursts from time to time.
Curious to see what exactly you changed on your tune. Maybe there’s an issue with it.
 

                           

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