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  1. 30 vs 35 profile tires - Michelin 4S

    Thank you. If it fits in the stock GT350 wheels, I m guessing the 25/55mm R offsets I have will be plenty as they stick out even more. I might still go with 315s because I am worried of the alignment wearing the insides.
  2. 30 vs 35 profile tires - Michelin 4S

    But doesn't the GT350R use the smaller diameter tires anyways so why would the stability control be out of whack? Also, I thought the stability control problem happens if the tire diameter ratio of front/rear becomes too large/small. In other words, if I am going to 30 section tire both in...
  3. 30 vs 35 profile tires - Michelin 4S

    Those are cup2s. My question is for 4S. Not interested in cup2s. Its a GT350 not R. I think with 30 profile tires the car sits very low
  4. 30 vs 35 profile tires - Michelin 4S

    Due to the tire shortage, I still cant find the 305/35/19 stock tires for 2017 GT350. I was wondering if I could use the 315/30/19 or 325/30/19 that are Michelin 4S. I know that GT350R uses those 30 profile tires but I dont know if it will be a problem in my GT350. The wheels are signature...
  5. 54,000 Mile Oil Analysis - Increased Lead

    I have asked this question to blackstone and waiting for a response. I have also asked them about the right method of filling the sample container. I think I have not been consistent in how I take the sample as far as when/how I fill the sample container during the draining process. For...
  6. 54,000 Mile Oil Analysis - Increased Lead

    The measure of unit is ppm. All other metals are perfect except lead. There is no rod knock noise. Only the typewriter tick at idle to 1200 rpm which disappears above 1200 rpm. Again, this has been there since day one. No issues with oil pressure. Blackstone says the bearings are made up of...
  7. 54,000 Mile Oil Analysis - Increased Lead

    I tape off the left and right radiators (engine oil and transmission oil). I also tape off the center lower mesh grill for the radiator. Basically every grill except the center top one with the shelby logo. Car has been extremely reliable, its at 72,000 miles now.
  8. 54,000 Mile Oil Analysis - Increased Lead

    The air filter is pretty snug. I clean it every oil change and I replace every 4th oil change (and I use the blue expensive filters). With the mileage I put on my cars, that amounts to be roughly 1 filter every year. When I took apart the throttle body a year ago to try out a ported throttle...
  9. 54,000 Mile Oil Analysis - Increased Lead

    I read somewhere that oil filters that are spin on type sometimes have lead components that can cause this issue. Can anyone chime in on this?
  10. 54,000 Mile Oil Analysis - Increased Lead

    What I dont understand is how something like this can go on for 23,000 miles and the engine still runs? I also dont know what material bearings are in this car, I read 5.0 threads of similar increased Lead value in other forums where people swore that bearings are all aluminum or copper but not...
  11. 54,000 Mile Oil Analysis - Increased Lead

    I always use exxon 93 octane. I always assumed lead must be from the rod bearings.
  12. 54,000 Mile Oil Analysis - Increased Lead

    My car has been out of warranty for 11,000 miles now....
  13. 54,000 Mile Oil Analysis - Increased Lead

    Update : at 71,000 miles now the lead level increased to 35. Prior to this it had dropped to 2 at one point, then increased to 5, and now 35. Highest it has been was 23 which was 17,000 miles ago. My car does have the typewriter tick (it had it since day 1), it has the piston slap (it also had...
  14. Is it OK to drive with 285 rear tires when fronts are 305?

    Thank you. As long as ABS functions and its safe to drive is all I am looking for. This car sees a lot of miles, our daily driver.
  15. Is it OK to drive with 285 rear tires when fronts are 305?

    I run a 305 square setup on my 2017 GT350. I need new rear tires but they are out of stock. In the mean time, I want to put my 285 snow tires on rears and not touch the fronts. Reason is the front snow tires are brand new and they will get destroyed in summer heat. Rear snows are done already (I...
  16. Had Full Xpel Ultimate PPF Done - Need Opinions on the work done

    It is true. XPEL is in TX (and I see in your location as TX). That's a different world you live in (and I did live in TX so I speak from experience) vs where I live (expensive Northeast) or California. Where there are more people with money (to throw away), there is a tendency to "not care"...
  17. Had Full Xpel Ultimate PPF Done - Need Opinions on the work done

    I have done PPF in a lot of cars (GT350, ZR1, GT3RS). I have used several different installers and here is my summary of years of dealing with PPF: - It has advantages and some pretty distinct disadvantages - No install was perfect. A true perfect installation is cost prohibitive as it requires...
  18. Prices are on the rise......

    These cars are amazing, until you need to take them in for service. Then you realize them being affordable is due to cutting costs everywhere including dealership quality. I drove my car 5 years/70,000 miles until one day my luck ran out. So we are all drinking some kool-aid here. There is no...
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