1234me Member 54 Member For: 19y 9m 18d Location: Adelaide Posted 02/03/07 02:29 PM Posted 02/03/07 02:29 PM I have a 4 speed auto BA. Currently it has a 3.45 final drive. I cant decide wether to put 3.73 or 4.1 gears in it. I have been told that 4.1 will be too high and not very practical. Will there be any difference with 3.73?Has anybody with BA 4 speed done a ratio swap?
Turbo6man Legacy Donating Member 4,084 Member For: 23y 11m 18d Gender: Male Location: South Coast NSW Posted 02/03/07 10:55 PM Posted 02/03/07 10:55 PM Naturally there will be a difference with 3.73 but it is very hard to feel when you're driving. It would only be when you are splitting tents down the 1/4 that you'd be able to measure it. However 3.9 will make a difference you can feel and still be acceptable for everyday driving, esp if you do any towing. IMO 4.1 is a tad too short for street use.
G6ET8U Playing with Sports Bikes... Legacy Donating Member 1,927 Member For: 20y 10m 30d Gender: Male Location: Whistling, GTX. Posted 02/03/07 11:49 PM Posted 02/03/07 11:49 PM Not sure why, but 3.9's aren't available for our cars.3.45, 3.73 and 4.1's are all available...Jack
DBOSS Faster than any BTA,XTC,Autotech, Nizpro and Tunehouse car Member 3,918 Member For: 23y 3m 6d Location: D SHIRE! Posted 03/03/07 12:20 AM Posted 03/03/07 12:20 AM Not sure why, but 3.9's aren't available for our cars.Shame I would have them in a flash
G6ET8U Playing with Sports Bikes... Legacy Donating Member 1,927 Member For: 20y 10m 30d Gender: Male Location: Whistling, GTX. Posted 03/03/07 12:35 AM Posted 03/03/07 12:35 AM Not sure why, but 3.9's aren't available for our cars.Shame I would have them in a flash ←Very true, it's probably the best compromise between 3.45's which are very tall with the T56, and 4.1's which might be a bit too short...It is easily the most used ratio upgrade with the Expensive Daewoo boys who run LS1/2's...Isn't your car fast enough Jeff??? Jack
Turbo6man Legacy Donating Member 4,084 Member For: 23y 11m 18d Gender: Male Location: South Coast NSW Posted 03/03/07 02:40 AM Posted 03/03/07 02:40 AM Well you can get a "virtual" 3.9 ratio by putting in a 4.1 and then fitting 275 40 18 tyres (on 8.5" or 9" rims) on the rear in place of your standard 235 45 17s.
Trough Lolly Member 4,349 Member For: 22y 19d Gender: Male Location: Mildura Posted 03/03/07 02:46 AM Posted 03/03/07 02:46 AM 3.9s are available for the utes arent they?
1234me Member 54 Member For: 19y 9m 18d Location: Adelaide Posted 03/03/07 03:54 AM Author Posted 03/03/07 03:54 AM (edited) Has anybody with a BA 4 speed done a Ratio swap?????? Edited 03/03/07 03:54 AM by 1234me
Ralph Wiggum Moar Powar Babeh Legacy Donating Member 19,334 Member For: 21y 5d Gender: Male Location: Perth Posted 03/03/07 04:03 AM Posted 03/03/07 04:03 AM 3.9s are available for the utes arent they?←They sure are. There actually 3.89 but thats as close to 3.9 as phuck is to swearing imho...
Trough Lolly Member 4,349 Member For: 22y 19d Gender: Male Location: Mildura Posted 03/03/07 07:39 AM Posted 03/03/07 07:39 AM 3.9s are available for the utes arent they?←They sure are. There actually 3.89 but that's as close to 3.9 as phuck is to swearing imho... ←lol that's it!
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now