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| richie |
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I am putting in LSD 3.7 into 5.0L ED Fairmont.
Is there a speedo gear to suit or electronic adjustment. It is an auto. Richie.
_________________ 1993 ED F/mont 5.0L, Auto, Edelbrock RPM's, CompCam XE276HR, Crane Gold Race 1.7's, Edelbrock Performer, 75mm T/B, MAP, 42lb , GenIII coils, PH4000's , Twin 2.5", Thermos & underspeeds, 3.7 LSD, 2800 stall and MoTec M800, 372fwhp @ 5400rpm & 387 ft-lb @ 4400 rpm. |
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| Dellboy999 |
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No there isnt the best you can do is a gear for a 3.45 diff, you will need to get an electronic speedo adjuster kit like the one from jaycar.
_________________ Full working BA Shifter now upgraded to BF Shifter. |
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| Damoz 6 |
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If you go to your local ford dealer they can tell you what speedo gear you need! What ratio is your diff now??? I came up from a 3.08 and it was a black 23 toothed speedo gear and was $10
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| richie |
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current ratio 3.27
richie.
_________________ 1993 ED F/mont 5.0L, Auto, Edelbrock RPM's, CompCam XE276HR, Crane Gold Race 1.7's, Edelbrock Performer, 75mm T/B, MAP, 42lb , GenIII coils, PH4000's , Twin 2.5", Thermos & underspeeds, 3.7 LSD, 2800 stall and MoTec M800, 372fwhp @ 5400rpm & 387 ft-lb @ 4400 rpm. |
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| fuzion |
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alternatively
ebay, search worldwide on 3.7 and u can get one from the states (white) |
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| AXR88U |
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Dellboy999 wrote: No there isnt the best you can do is a gear for a 3.45 diff, you will need to get an electronic speedo adjuster kit like the one from jaycar.
If you do this you may run into troubles with your auto shift patterns as the auto ecu get feedback from the speedo. Say for example your car your car would shift at 5400rpm at WOT with a diff change (3.27 to 3.73) and speedo adjustment your car now, your car wont shift until it hits about 6160rpm, alright if you have a worked motor but not much good if its a stocker. The best thing you can do is just live with a bit of speedo error and make up a card to show what your indicated and actual speeds are.
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| richie |
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I believe that a black speedo gear out of XF falcon has 23 teeth which is what I think you need for 3.7 diff. But I thought ratio for XF was 3.5.
Mick Webb thought Monaro used white 23 tooth for 3.7 but am not sure if it fits 95LE tranny. Any thoughts?
_________________ 1993 ED F/mont 5.0L, Auto, Edelbrock RPM's, CompCam XE276HR, Crane Gold Race 1.7's, Edelbrock Performer, 75mm T/B, MAP, 42lb , GenIII coils, PH4000's , Twin 2.5", Thermos & underspeeds, 3.7 LSD, 2800 stall and MoTec M800, 372fwhp @ 5400rpm & 387 ft-lb @ 4400 rpm. |
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| moo |
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jaycar $44.95 check out their website
:f@rt:
_________________ f@rt :f@rt: |
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| Smackdown |
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AXR88U wrote: Dellboy999 wrote: No there isnt the best you can do is a gear for a 3.45 diff, you will need to get an electronic speedo adjuster kit like the one from jaycar. If you do this you may run into troubles with your auto shift patterns as the auto ecu get feedback from the speedo. Say for example your car your car would shift at 5400rpm at WOT with a diff change (3.27 to 3.73) and speedo adjustment your car now, your car wont shift until it hits about 6160rpm, alright if you have a worked motor but not much good if its a stocker. The best thing you can do is just live with a bit of speedo error and make up a card to show what your indicated and actual speeds are. If you have a manual, would there be any other issues with using the jaycar fix?
_________________ BA Falcon Futura on EGas. Stock as...
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| Spork |
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I would have thought that an auto would use RPM vs Throttle to control the shift points. Does it use the speed aswell or instead of RPM?
_________________ Manual EL Gli.
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