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  1. T

    Changed gear ratio but never recaliberated, wrong mileage?

    I had wondered the same thing. But when I started thinking about it I don't think so. Your tires are still turning the same amount as they were before so your odometer reading should be correct.
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    SLP or Borla

    I love my SLP catback on my 2000 GT vert. You will too.
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    Predator

    Thanks to whoever suggested switching from the Hypertech to the Predator. It did indeed fix my rear ratio that the Hypertech would not. It's awesome, and I have only done the basic tune. Have to read up on the rest. Thanks again. Tim Radde
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    Buying 99 Stang GT?

    I get about 18 city. But that was with the stock 3.27s. I just put in 4.10s. But people at work kid me that this is my economy car, cause my truck gets 15. Both are V8s, and both are sticks.
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    New gears, but can't set speedo

    I see that now that stock is 3.27. For some reason I thought I had read stock was 3.08. So I swapped from 3.27s to 4.10s. The Hypertech does not display the current ratio. It only asked you to select from a scrollable list the ratio changing to. I can't wait for the Predator to arrive...
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    New gears, but can't set speedo

    The Hypertech Programmer only asks the gear ratio being changed to. It does not ask about what the old ratio was. That should have been whatever the programmer was set up for stock. But weren't some Mustangs 3.08s? This programmer covers many years of Mustangs. It cover 1999 and up 4.6L...
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    New gears, but can't set speedo

    I too was surprised at that. I just figured he did something wrong. We were outside in the sun so he could have read something wrong and not programmed the gear change. He also mentioned he was not familiar with the Hypertech. So I did it myself, and saw that it had indeed been set to 4.10s...
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    New gears, but can't set speedo

    I am pretty sure they were 3.08s. I thought only Cobra's came with 3.27s? The Predator should be here in a few days to fix the problem. It's so hot here it's not even fun driving a vert with the top down. :(
  9. T

    New gears, but can't set speedo

    Ok, I ordered the Predator. I wish I had known this before I bought the Hypertech. Oh well. live and learn. Tim R
  10. T

    New gears, but can't set speedo

    Can't set my speedo Ok, first what is this speedcal thing? I have seen it mentioned before in other posts. If I do indeed get the Preditor will I still need the speedcal? Do you think the shop that did the gear would have that? He mentioned something for about that price when he asked...
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    New gears, but can't set speedo

    Hello all. This is my first post here. But I have been reading this board for some time. Lots of useful info here. I finally upgraded my gears from stock 3.08s to 4.10s on my 2000 GT vert. The guy who did the swap attempted to set my new rear ratio using my Hypertech Power Programmer III...
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