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New Mk2 6 Speed ratios ?


Crumpet

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From http://www.ford.com.au/inside_ford/press/V...file=foa459.htm

XR6 Turbo

Transmission/ratios

Gear / Auto / Manual

1st / 2.50 / 2.66

2nd / 1.49 / 1.78

3rd / 1.00 / 1.30

4th / 0.68 / 1.00

5th / N - A / 0.08

6th / N - A / 0.63

Rev / 2.07 / 2.07

Diff / 3.23 / 3.45

XR8 the same except

Diff Ratio manual 3.46

Manual 1st gear 2.97

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The new XR6T diff is 3.73

I'd question the quoted table value in respect of 1st gear.

They have 2.97 for the XR8, and 2.66 for the XR6T. I reckon it's the other way around, as the V8 should be taller than the T for initial off-the-line movement.

2.97 1st with a 3.73 diff works very well, as I've used it (11.08 overall ratio).

2.66 1st with a 3.73 diff would not be so good (9.92 overall ratio).

Compare with old T5;

2.95 1st with a 3.46 diff, has (10.21 overall ratio).

2nd gear ratio of 1.78 with a 3.73 diff should pull around 102 kph, for good 0-100kph times, for marketing purposes; and that is very close to the same overall gearing ratio of 2nd with the T5 (1.94 ratio with 3.46 diff).

Brian

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I agree with your comments re first gear Brian. But there is a very good reason why Ford have put a lower first gear in the V8. They want it to be quicker out of the blocks than the T. Also, even though it has more torque at idle than the T6, it's torque curve doesn't build as rapidly so it needs the lower gear to get it's lardarse moving. :blush:

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I don't think it will change much for the XR8s or GTs but the Turbos might be fractionally slower. However the other gear ratios are closer together so this will compensate further down the 1/4. The autos will still be quicker :thumbsup::k24t:

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Looks like we would have been even better off with the Standard T5 in the Stock XT.

1st - 3.35

2nd - 1.93

3rd - 1.29

4th - 1.00

5th - 0.73

Just as tall in 5th as the Turbo, but with 3.35 1st gear, that would be a real rocket out of the blocks.

Not a great deal of difference between 2-4 either.

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I don't think it will change much for the XR8s or GTs but the Turbos might be fractionally slower. However the other gear ratios are closer together so this will compensate further down the 1/4. The autos will still be quicker :w00t2::clap:

Why should the Auto's be quicker ?

You are lossing about 10-15KW to pump trans fluid around the box so that you can change gears ?

And in case no-one has notice, the BTR Auto does "Torque" the engine down when it sees a "Stall" condition on the converter.

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I don't think it will change much for the XR8s or GTs but the Turbos might be fractionally slower. However the other gear ratios are closer together so this will compensate further down the 1/4. The autos will still be quicker :sleepystuff::smilielol:

Why should the Auto's be quicker ?

You are lossing about 10-15KW to pump trans fluid around the box so that you can change gears ?

And in case no-one has notice, the BTR Auto does "Torque" the engine down when it sees a "Stall" condition on the converter.

Not this again...

jeff

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I don't think it will change much for the XR8s or GTs but the Turbos might be fractionally slower. However the other gear ratios are closer together so this will compensate further down the 1/4. The autos will still be quicker :sick::ermm:

Why should the Auto's be quicker ?

You are lossing about 10-15KW to pump trans fluid around the box so that you can change gears ?

And in case no-one has notice, the BTR Auto does "Torque" the engine down when it sees a "Stall" condition on the converter.

Not this again...

jeff

:wtf: :wtf: :nono:

ROFLMFAO

Grass> SUCKED IN!!!

Sorry Jeff, just couldn't help meself - as soon as I saw the opportunity I just did a KenT ....

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