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  1. Lease residual/buyout value

    The residual (lease end value) is the actual buy-out price at the end of the lease irrespective of mileage. Assuming you are going to turn the car in, if you are under the mileage limit, it is to the dealer's benefit when he or she goes to sell your used car--something that you might use as a...
  2. Civic SI: +6PSI vs. +9PSI Tune

    I've a 2017 Si. I installed a K&N cold air intake at about 4,000 miles. The most boost I showed was 18 psi in 3rd gear at WOT near redline. A Hondata Flashpro was added at about 5,000 miles initially set to +6 psi. The difference (with the performance mode switched on was significant). A...
  3. Lease residual/buyout value

    Assuming the laws in Canada are the same as Illinois in the US, the residual value on the lease, is the price you would pay to buy the auto at the end of the lease term. Assuming you didn't make a huge up-front payment on your lease, in many cases they will put you into a brand-new comparable or...
  4. Is the power on the 10th gen Civic SI enough?

    My Si is a 2017, purchased new in August of that year. It offers the best balanced performance of any car I've ever owned (going back to a Formula S Barracuda in 1966 and including a Porsche 356-B 1600 Super, a 3.8 Jag E-type and a 440 C.I. Dodge R-T). Never being satisfied with anything left...
  5. Is the power on the 10th gen Civic SI enough?

    My Si is a 2017, purchased new in August of that year. It offers the best balanced performance of any car I've ever owned (going back to a Formula S Barracuda in 1966 and including a Porsche 356-B 1600 Super, a 3.8 Jag E-type and a 440 C.I. Dodge R-T). Never being satisfied with anything left...
  6. Mods for neutral handling

    I agree with what you say about the rear-end coming around if you lift off the gas or nail the brakes, but the original post said only that he wanted to obtain neutral handling.If the car is under-steering at the limit in a steady state corner, tightening the rear-end to the pavement is going to...
  7. Mods for neutral handling

    This sounds counter-intuitive but if your car is already pushing (under-steering) in the corners, keeping the rear-end more firmly planted by adding a bigger/rear sway bar will actually make it worse (currently, your front end is sliding and your rear-end is staying planted, relative to the...
  8. I’m stumped NEED HELP

    It sounds like injectors but, if you haven't done so already, try a cheap fix: a good brand of fuel injector cleaner. It may be necessary to use it on two successive fresh tanks of fuel. Good luck.
  9. The Tuned CivicX Experience & Reliability Thread (for all models)

    Interesting. I, too, used the Hondata flash--+9 psi. My driving is primarily highway (long trips). My car has been on a track twice, albeit for short times (total track mileage estimate: 50 miles). On my street driving I very rarely engage the +9 psi tune (sport mode off). My normal driving...
  10. Highest mileage to date with 10th gen Si's?

    Yep, for work. I turn 71 in a couple of weeks and, as I told my wife the other day, "If I can keep this up for another 30 years, I can afford to retire."
  11. Highest mileage to date with 10th gen Si's?

    Hi there. If the question about the clutch was directed at me (I'm right above you on the thread), the answer is "yes." Original clutch and original all-weather tires at 50K (mostly highway) miles.
  12. Highest mileage to date with 10th gen Si's?

    My '17 Si has over 50,000 miles and the only mods are a Hondata flash at +9 psi and a K&N cold air intake. I regularly drive from the Chicago-area to NE, MN, Detroit and KC so most of my miles are highway. Typically, on the highway, I drive at the posted speed plus 10 mph just to keep distance...
  13. Motortrend tested the 2020 civic SI

    My observation (2017 Si) has been that with the slightly taller final ratio, I still have to shift to 3rd before hitting 60 mph--over-revving to prevent the time lost with the shift does nothing to improve the 0-60 as the engine runs out of steam up top. I believe (not proven) that my 0-60...
  14. The Si's power figures are underrated

    Good point re: the increased drive train efficiency over the past few years. The dyno run was done in the spring (not on winter gasoline), on a clear, dry day with a relatively cool ambient temp, a fully warmed but not hot engine and only a single run was done. Using the 10% drive train loss...
  15. The Si's power figures are underrated

    182 hp at the wheels probably equates to about 214 at the crank so, yes, the stock Si is underrated (but not by much). On a dyno run, my Si produced 210 whp which is probably pushing 247 hp or so at the crank. This is with a Hondata +9 psi tune and a K&N cold air intake.
  16. How old are y’all

    I turn 71 next month and am driving a (slightly) tuned 2017 Si that I picked up in August of '17. I've driven and worked on a lot of cars over the years including a 348 c.i. '59 Chevy, a Formula S Barracuda, a '68 Charger RT (440 c.i.), a '62 Porsche 356 B 1600 Super, a '78 Triumph Spitfire...
  17. "Oil dilution settlement"

    If, in fact, there is fuel diluting your engine oil, you should experience an increase in the oil level, when checking it via the dipstick (this could also result from coolant entering the crankcase/lubrication system). Neither is likely. Frankly, unless fuel is blowing by the piston rings I'm...
  18. The Infamous 2nd Gear Crunch

    I, too, have encountered a slight grinding which to my ear indicates a slow synchro. It is most noticeable when first driving on a cool/cold morning and reduces somewhat after everything is fully warmed up. To test the slow synchro theory, I've tried double-clutching the 1-2 shift and, voila, it...
  19. How much is Too much power

    That and the fact that (at least on my car running 27 PSI per the gauge), there's no performance gained by revving 2nd gear past 60 MPH or shifting before 60 MPH. On the one hand, torque drops off; on the other, you've lost time with a shift.


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