MICKAJ Member 245 Member For: 16y 11m 29d Posted 22/06/08 11:57 AM Share Posted 22/06/08 11:57 AM (edited) What ratios do both boxes have?What RPM does the 6 speed have at 100km/h.How much would I be looking at to convert to 6 speed manual from 5 speed manual?Are the only changes from the engine back to driveshaft or is there wiring issues etc... Edited 22/06/08 11:57 AM by MICKAJ Link to comment Share on other sites More sharing options...
stealthxr Donating Members 553 Member For: 19y 17d Gender: Male Location: The Shire Sydney AUS Posted 22/06/08 12:05 PM Share Posted 22/06/08 12:05 PM Have a READ of this It will tell all that you need th know.pete Link to comment Share on other sites More sharing options...
bcl Toughest BA Turbo Lifetime Members 3,408 Member For: 22y 2m Gender: Male Location: Sydney Posted 22/06/08 12:36 PM Share Posted 22/06/08 12:36 PM Also read this from Robin Mkii T56 6 Speed & Twin Plate Clutch, Installed in a MkI, how it's done....http://www.fordxr6turbo.com/forum/index.php?showtopic=15848Brian Link to comment Share on other sites More sharing options...
MICKAJ Member 245 Member For: 16y 11m 29d Posted 23/06/08 03:20 AM Author Share Posted 23/06/08 03:20 AM Ta Link to comment Share on other sites More sharing options...
bcl Toughest BA Turbo Lifetime Members 3,408 Member For: 22y 2m Gender: Male Location: Sydney Posted 23/06/08 05:52 AM Share Posted 23/06/08 05:52 AM Just a bit more brief information:T5 ratios are 2.95, 1.94, 1.34, 1, 0.73 to 1T56 ratio are 2.66, 1.78, 1.3, 1, 0.8, 0.62 to 1As a guide, at 100 kph (keeping your BA diff ratio of 3.45)T5: 2870 rpm in 4th2100 rpm in 5thT56:2870 rpm in 4th2300 rpm in 5th1780 rpm in 6th ... should give better cruising economy Brian Link to comment Share on other sites More sharing options...
RHR BOOST Moderating Team 5,698 Member For: 21y 5m 19d Gender: Male Location: Southern Highlands NSW Posted 26/06/08 02:24 AM Share Posted 26/06/08 02:24 AM (edited) 1780 in 6th???Mine does smack on 2k doing 100 in 6th Edited 26/06/08 04:29 AM by Buf-Phoon Link to comment Share on other sites More sharing options...
7MA61 Member 471 Member For: 17y 6m 12d Gender: Male Location: Sydney Posted 26/06/08 02:49 AM Share Posted 26/06/08 02:49 AM (edited) BA MK2 has 3.7...:1 which sits pretty much smack bang on 2000rpm. Edited 26/06/08 04:29 AM by Buf-Phoon Link to comment Share on other sites More sharing options...
bcl Toughest BA Turbo Lifetime Members 3,408 Member For: 22y 2m Gender: Male Location: Sydney Posted 26/06/08 04:35 AM Share Posted 26/06/08 04:35 AM BCL said keeping the 3.45 BA series 1 ratio.BA MK2 has 3.7...:1 which sits pretty much smack bang on 2000rpm.I have a spreadsheet where I can calculate revs for a speed input for any gearbox(auto and manual)/diff combination, and also speed for a rev input for any gearbox/diff combination.My quoted rev/speed should be accurate to around 4%, as it depends on tyres used and tyre wear. Also, what your speedo reads is not necessarily accurate either, if you check it against a gps. A speedo is more likely be conservative on speed display.My speadsheet derives 1920rpm for 6th speed (0.62 ratio) at 100kph. If you say you see 2000rpm that is close enough to being acceptable for the purposes of illustration.Brian Link to comment Share on other sites More sharing options...
cobrav8 Member 1,969 Member For: 19y 11m Gender: Male Location: New Zealand Posted 26/06/08 06:48 AM Share Posted 26/06/08 06:48 AM I go with that - if you reset your trip average speed meter while holding a speed - it seems to be more accurate. Link to comment Share on other sites More sharing options...
Trough Lolly Member 4,349 Member For: 20y 5m 16d Gender: Male Location: Mildura Posted 27/06/08 08:54 AM Share Posted 27/06/08 08:54 AM BA MK2 has 3.7...:1 which sits pretty much smack bang on 2000rpm.same. Link to comment Share on other sites More sharing options...
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