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#1 |
Registered Member
Join Date: Sep 2001
Location: Baltimore MD USA
Posts: 3
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![]() I recently changed the rear in my 99 Cobra from the stock 3.27 to a 3.73 ratio. How do I recalibrate the speedometer. The mechanic said the speedo uses a magnetic pickup and not a toothed gear at the transmission. Reprogram the computer???
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#2 |
Registered Member
Join Date: Nov 1998
Location: Houston, Tx.
Posts: 3,887
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![]() Not being a late model Stang owner, I think you have to get an add-on or programable chip to fix that. Those in the modular forum probably will know.
Rev ------------------ '66 Coupe, 306, 300 HP, C-4, 13.97 e.t., 100.3 mph 1/4 mi. [This message has been edited by Rev (edited 09-18-2001).] |
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#3 |
All show, some go 4 now!
Join Date: Jun 2001
Location: Franklin, NH
Posts: 175
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![]() I'm looking at the Saleen powerflash ECM, supposed to be programed to match your gear ratio and add extra HP across the board.
------------------ '95 Chrome Yellow GT ragtop, KN filter charger, Dynomax cat back, Accel plugs and wires, Chromed '95 Cobra R's (bought for $19.95, now 2 are warped!). http://www.mustangworks.com/cgi-bin/moi-display.cgi?1883 |
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#5 |
I'd rather be basketweaving
Join Date: Feb 2000
Location: Indianapolis
Posts: 2,551
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![]() find the friendly guy at your ford dealer's service department and ask him if he could do it on the side, i worked at one this summer and a guy there did the exact thing on a 99 cobra, even if you take it in for that it wouldnt be really expensive
------------------ 88 Notch, B&M Ripper, 3.73's, Ported E7's, Explorer int. w/ ported lower, pulleys, 1.7RR's, BBK headers, off-road H-pipe, flowmasters, subframes, 65mm TB, March ram air ,MSD coil, U/L control arms, 155lph f/p, Crane Adj.FPR, Nitto drag radials, best 1/4--> 13.76@101.4 on a 2.17 60ft |
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Thread | Thread Starter | Forum | Replies | Last Post |
rear end ratio | 91redgt | Windsor Power | 2 | 09-17-2003 10:52 PM |
Recommendations on a rear gear ratio | jim_howard_pdx | Windsor Power | 1 | 09-15-2002 12:10 AM |
rear end ratio | apk | Stang Stories | 3 | 09-19-2001 06:15 PM |
Whats the best way to tell if your running lean or rich? | K.C. 5.0 | Windsor Power | 9 | 09-10-2001 03:04 PM |
A question of torq and rear end ratio. | Mo65 | Classic Mustangs | 3 | 12-23-2000 02:25 AM |