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  1. A few runs against my sons c7.

    I been hearing good things about the Atturo az850. And the price is great on them. I have 305/35r19 on now. They only have 305/30r19. Or a 285/35r19. The 30 series will make my gear ratio alittle worse. The 285/35 is close to what I have now just .8" narrower.

  2. A few runs against my sons c7.

    Oh ok.

  3. A few runs against my sons c7.

    Robvas is your car boosted too?

  4. A few runs against my sons c7.

    Yeah that 4th gesr surely didnt help. Ill get the r2. Anything has to be better then these g2.

  5. A few runs against my sons c7.

    Guess its time to 🔥 This rag down. Maybe I'll just take it back to cat back it'll put up a better fight. 😆 But seriously, I don't know. Either the nannies and shit tires were hurting it or something going on with engine. I'll know soon enough when it gets on dyno if something is off because...

  6. A few runs against my sons c7.

    edited to add: I agree your whippled GT should smoke a stock base C7 despite the approx 600 lbs weight difference. Are you rolling into the throttle or smashing into it? A quick roll into the throttle will help transfer the weight and settle the rear better than a quick stab of the go pedal. Or...

  7. A few runs against my sons c7.

    Maybe it wasn't heat soaking. Just assuming it was. It was still pulling the same so maybe not. I agree. I love the c8 myself. If I could afford one I'd have one. Definitely gonna get better tires on the rear.

  8. A few runs against my sons c7.

    That 10speed is a beast. Have a dyno tune set up for June 14th. I'll have the griptec pulley on and I'll see if anything is up with the car. Andy did you have your nannies turned off for that run?

  9. A few runs against my sons c7.

    I'm gonna have to check.

  10. A few runs against my sons c7.

    I was kinda thinking 331 gears. I do alot of highway driving.

  11. A few runs against my sons c7.

    Just using digital boost gauge that you can add with forscan. So it's inferred. Should be around 10psi with the longtubes. It's a pd blower whipple gen 5 stage 2. 3Liter. I do need to get a better boost gauge

  12. A few runs against my sons c7.

    Yeah. Gonna be a rematch. :) but hopefully after better tires and some dyno time to rule out a power loss.

  13. A few runs against my sons c7.

    Well. Maybe that was a issue too. 😆

  14. A few runs against my sons c7.

    One other thing I can think of is I always leave the car in normal mode never use sport mode and I leave traction control on, could that be reducing my timing maybe?

  15. A few runs against my sons c7.

    Yeah. I think something is going on with the car. I don't get any kr at wot. I run 91 octane with 4oz boostane professional per tank. Seems to run fine. New plugs, coils. Injectors were professionally cleaned. Great compression and leakdown test was great. I'm kinda at a loss. I dd drive...

  16. A few runs against my sons c7.

    Griptec 3.750 ordered. Tires next. Thanks for all the help guys.

  17. A few runs against my sons c7.

    Oh damn. Yeah these were on it when I bought the car last yr. Definitely gonna get some new rears.

  18. A few runs against my sons c7.

    Will do. Thanks

  19. A few runs against my sons c7.

    I'm gonna look into some pilot 4 I believe there called. I dd this alot so Dr's are kinda out of the question. I appreciate the feedback. I'm thinking of getting a griptec pulley. I think I'm getting some belt slip on this one.

  20. A few runs against my sons c7.

    I agree. I'm gonna have to hit a dyno just to see if anythings going on.





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