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Originally Posted by 86TOYO2k17
yup, like off road or rally (something most people don’t do or at least build this car for) on a track or normal road lower profile tire will have better handling and response and the larger wheel gives more options for better brakes. Often lower profile tires can have slightly better fuel efficiency as well. Aside from off road/ rally bigger profile tires only real advantage is comfort which stock size profile is still just fine at.
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I think you're being too absolute. I'm not just talking about off road or dirt, I'm thinking about bitumen too ... roads with inconsistent surfacing, like most back roads for example. A tall(ish) sidewall can provide actual functional benefits on these types of roads.
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You outlined opinions. i mentioned facts for the reader to determine for themselves what is right for them. This entire thread is an FI thread, NA and FI should not use same FD ratio. 5th in MT and 4th in AT is 1-1 gear ratio your acceleration drastically falls off once you shift to an overdrive gear (6th for MT 5/6th for AT) meaning the top speed of your 1-1 gear is what you’re really able to use and have fun with. With FI hitting 120+ is no problem, using an FD like 4.66 makes 5th top at 112mph you will be wishing you had more gear with FI. For general use i wouldn’t go higher than 4.3 for this reason. For specific use like track or auto x their is a specific method in choosing what ratio is best but chances are with FI it will still not be over a 4.3, many FI choose to go lower like 3.7-3.9. I went from a 4.1 to 4.56 When NA it was one of the best performance mods i did. Then i went FI and i hated that ratio, swapped back to 4.1 which was better but combined with a 255 tire i wished for a tiny bit more acceleration, then switched to a 4.3 ratio which was perfect. at 250-300whp 4.3 is perfect for general use. Also traction becomes a bigger and bigger issue with FI and more power a more aggressive FD like 4.56 or 4.66 makes traction that much worse.
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Not facts, just opinions with ratios.
"NA and FI should not use same FD ratio".... Is there a rule?
"a more aggressive FD like 4.56 or 4.66 makes traction that much worse"....According to?
"4.66 makes 5th top at 112mph you will be wishing you had more gear with FI"... Is 6th illegal?
Because you might dislike a certain drive ratio (or wheel radius), doesn't mean that others experiences might be at odds with your opinions.
I'm guessing though, that we both love the Harrop!
