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  1. DriveHard

    AitLift 1000 spring helpers - squeak help!

    Installed a set of these, part number suggested by Air Lift for my specific model, to help with rear end sag while loaded. https://www.airliftcompany.com/products/air-springs/air-lift-1000 I have used the AirLift 1000 on two previous family cars with rear coil springs...a Saturn Outlook, and a...
  2. DriveHard

    Type of Atkins cycle for helping GDI carbon on intake valves?

    Just thinking in the shower again... In a type of the Atkins cycle, the intake valve is kept open during the start of the compression stroke, and some of the intake air is pushed back into the intake. If one were to do this on purpose, and spray fuel in during that time, could it wash over the...
  3. DriveHard

    Thicker oil makes more HP?

    Apologies if this has been posted before...this is the first time I have seen it. Dyno comparison of 5w-20 vs. 20w-50 at 100F and 212F. Nothing surprising except one run in particular... Feel free to delete if this has been discussed before.
  4. DriveHard

    40 Amp Level 2 Portable EV Charger - $150

    40 Amp Level 2 Portable EV Charger Charging Cable Station, Electric Vehicle Charger Plug-in EV Charging Station with All J1772 EV Cars (240 Volt, 25ft Cable, NEMA 14-50) $300 new on Amazon, this one was used about 11 months. I no longer own an EV. The face is dirty, not scratched. Buyer pays...
  5. DriveHard

    2023 Kia Premium key fob

    No longer have the car, this was the spare. Can be re-programmed for your own Kia. $50 shipped CONUS
  6. DriveHard

    2023 Kia EV6 21" rims, tires, TPMS

    I switched to 20" rims and tires, but now no longer own the car. I had these on the car for less than 10,000 miles. There is slight rash on ONE of the rims, shown in pics...the other three are perfect. Asking $1000 OBO, buyer pays shipping. 114.3x5 bolt pattern. 255/40r21 size.
  7. DriveHard

    Calling Capri Racer - inflation pressure on tire size change

    Ok, here is the scenario. Stock tires on my ZR2 are 265/65R17 with a load rating of 112S SL 2,469lbs @ 51 psi. The OEM suggests 35psi all around which I know lowers the load carrying capability of the tire...but to what? I want to run summer tires 265/50R20 to reduce noise and un-sprung...
  8. DriveHard

    Starting a new chapter in my life

    I've been personally going through a lot of internal turmoil to the point of seeking therapy, and sadly disrupting my marriage. Conclusion being, that I needed to change everything...which I am uber excited about. I don't live well when not pushed and challenged. (I am still happily married, and...
  9. DriveHard

    Summer tire suggestion - no bounds ;-)

    Hey BITOG!!! I know I could piece this together myself, but I'm interested in what the collective could find. My bride's ZR2 has aggressive wheels and tires on it, and while they are less than 50% worn with ~45k on the truck, they are getting loud. In my past, I would take these tires and...
  10. DriveHard

    Level B in Iowa

    I was blessed with the pleasure of spending the weekend alone with my bride in Omaha...no jokes, they have some decent restaurants, and time in the hotel is better than any city life ;-) Anyways, I was pre-planning, and wanted to hit some famous Iowa roads...so we took the ZR2 to experience...
  11. DriveHard

    Volumetric Efficiency of a naturally aspirated 4 cycle engine.

    Ok...if allowed, this is something I learned during my undergrad at Iowa State studying internal combustion engines... For a 2 liter engine, it is theoretically possible for the engine to "inhale" bring in two liters of clean air for every two revolutions. This would be equal to an intake...
  12. DriveHard

    Colorado rack and rack tent...

    Mods, please move if this is not where the subject belongs, as I was not sure. My bride and I have been going to the Colorado mountains since shortly after we met about 15 years ago. We have become more and more intense, with our expeditions, with this last summer of 2022 having conquered two...
  13. DriveHard

    Kia EV6 GT @ AutoX

    The best way to break in a new car is to learn the capabilities, right? I would normally run my C5 at the AutoX events I attend, but I just wanted to see what the GT could do at the limits, and how well it actually handled. Overall I was pretty pleased. The most surprising part was how well...
  14. DriveHard

    PPF question...

    Something I don't quite understand, and I am guessing it is because I am assuming a process, and maybe the technicians have better tools available than what I know. Why is it more expensive to do a full hood, or full front quarter panels, as compared to half? I realize there is more material...
  15. DriveHard

    New Ford Modeo for NA?

    Well, Ford said they are no longer making cars, but one of my favorite Youtube car shows caught Ford testing new Modeo's out in CA and NV. Jump to ~13:00 for some shots from the interstate. Link is episode three of Throttle House "Road to Enlightenment" - there is content exceptional to BITOG...
  16. DriveHard

    Visual upgrades to my AutoX car

    Just thought I would brag for a minute ;-) I bought my C5 for a song...but it was not without its flaws. The nose cone had heavy clear coat peeling...quotes about $1500 to repaint. The area behind the wheels was also heavily chipped...she did have 95k on her when I bought her. I took care of...
  17. DriveHard

    Tire pressure for changing handling characteristics - AutoX

    Looking for some expert advice ie. @CapriRacer I am coming here because on the C5 forums, everybody is an expert, and the advise is split nearly 50/50...in opposite directions. I run a 2004 C5 base Corvette manual with the Z51 suspension upgrade and enough power mods to dyno around 400 at...
  18. DriveHard

    Why the hate for ethanol from an engineering perspective?

    Can we please leave government and politics OUT of this topic? I understand for boats, and small engines that are not electronically controlled, and used rarely, ethanol can have some detrimental effects. Why the hate for ethanol in your car that is driven routinely? Yes, it reduces...
  19. DriveHard

    New picture filter?

  20. DriveHard

    Rental Cars - how do you treat them?

    The thread about why you would NOT buy a rental car had me thinking...how do you treat a rental? Why should you or should you not buy one? Usually the rentals are so underpowered, I have a digital input on the throttle (WFO all the time) no matter the temperature. If it is extremely cold, I...
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