Discofan Posted July 7, 2009 Share Posted July 7, 2009 I have a 1996 Automatic Disco. It changes into top gear at 52 mph, is it possible to make it change into top at plus minus 45mph. It feels that it should change earlier when I'm driving, plus this would surely make it more economical and I don't feel I need the high revs. Any ideas?? Cheers Quote Link to comment Share on other sites More sharing options...
Brookers Posted July 7, 2009 Share Posted July 7, 2009 Is the vehicle modified? If you have oversized tyres fitted then this will affect the gearing and in turn this will affect when the box changes. Brookers Quote Link to comment Share on other sites More sharing options...
Discofan Posted July 7, 2009 Author Share Posted July 7, 2009 Is the vehicle modified? If you have oversized tyres fitted then this will affect the gearing and in turn this will affect when the box changes.Brookers no all standard parts [this is a jap import with 61000 on the clock by the way] Quote Link to comment Share on other sites More sharing options...
teabag Posted July 8, 2009 Share Posted July 8, 2009 You are in top gear way before 52mph, thats when the torque converter locks up. My x 3.5 RR locked up at 45 but locking up at that speed did make the RR sluggish at that point. Yes it is possible to convert your gear box, but as it's a internal thing u will have to get someone like Ashcrofts to work on it, or change to box for a 3.5 RR one. Quote Link to comment Share on other sites More sharing options...
Pete Attryde Posted July 8, 2009 Share Posted July 8, 2009 Mine currently locks up at approx 47 mph but that is with a 1.4:1 transfer case rather than the standard 1.22:1 and 33" tyres. When I had 31" tyres it was a bit lower at around 43 mph. However I suspect that on standard 29" tyres you will find the gearing to low using a 1.4:1 transfer box. Pete. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted July 8, 2009 Share Posted July 8, 2009 52mph is when it is supposed to lock up the torque converter, almost definitely this is what you are feeling, pretty sure without a box dismantle there'll be no way to change this. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.