6-speed gearing interchangeable?

[Promise Land]

I couldn't find this in the archives, so...

Just wanted to get your mouths salivating a bit and your minds racing....

I did some side-by-side comparisons to the Versa, Sentra, and Juke. All use a 6-speed pattern with RS6F94R transaxle type.

Versa MR18DE vs. Sentra MR20DE
Transmission model is the same. Both are 6-speeds with Warner Synchromesh type.
1st, 2nd, and 4th gear is the same.
3rd, 5th, and 6th are different, but the final ratio is the same. Those that want more MPG in 6th gear need the Sentra gears.

Versa gear ratios:
1st 3.727, 2nd 2.105, 3rd 1.452, 4th 1.171, 5th 0.971, 6th 0.811

Sentra gear ratios:
1st 3.727, 2nd 2.105, 3rd 1.519, 4th 1.171, 5th 0.914, 6th 0.767

Now that Juke is out...

Juke gear ratios:
1st 3.363, 2nd 1.947, 3rd 1.393, 4th 1.114, 5th 0.914, 6th 0.767


I don't know that a Juke transmission is 100% able to work on the Versa, but it would fix the 1st/2nd short shifting (some complained about it) and get better MPG in 6th gear. If you wanted some more 3rd gear pull, you may be able to stay with the Sentra 3rd gear (best acceleration). I am asking a few questions around to see if I can get confirmation that anything is able to be swapped "easily". We may have an OEM solution to the things not enjoyed about the 6-speed.

[Francesco]

Great information to possibly take advantage of in the future as the car is out of warranty and the junkyards collect more unfortunate victims. My goal is to end up with 2500 RPM at 70 MPH in 6th gear. Unfortunately the 0.767 gear only drops the RPM from 3063 to 2897.

Frank
2009 Versa S sedan MT-6 with 17800 miles

[carlos15]

promise land me and you need to get 6speed versas

[Promise Land]

Carlos, I'm working on a few things for 2011. If I can get everything worked out, I'll have a 6-speed Versa with an MR20 and Juke gearing by the end of the year. Still working on A LOT of details, but I have figured out what I need to make it all happen.

[carlos15]

wait so are you buying an all new versa? or doing a 6speed swap because if you are you can always do a diy are you planning on using the kit the bob is planing on making. to make the mr18 a mr20 or are you buying a new mr20 all together. and well when you do all that to your car im going to jackson,ms and im going to pet your car hahaha

[Promise Land]

wait so are you buying an all new versa? or doing a 6speed swap because if you are you can always do a diy? are you planning on using the kit the bob is planing on making. to make the mr18 a mr20 or are you buying a new mr20 all together? and well when you do all that to your car im going to jackson,ms and im going to pet your car hahaha

Buying a new car. The swap is too much of a headache between all the pieces involved. I'd just take everything off my current car and swap to a new car. It will give me a chance to work on some other projects I've been wanting to do.

I'd just pick up an extra MR20 rather than build my MR18. It will be much simpler to have an extra engine and transmission ready to swap to the car. It will take far less time and just be a weekend project.

[mitchellhuth]

Where is the info on the mr18 to mr20 kit?????

[carlos15]

it belive the info on mr18 to mr20 kit is on the supercharger threads. and dang your lucky you can buy another car im probably gonna end up buying a 06 lancer ralliart lol is the mr20 a direct swap for our cars becasue if i ever do a mr20 swap i dont wana be messing around wit ecu stuff unless its very simple ecu stuff. what color you planning on buying this time?

[Promise Land]

The MR20 swap is direct plug-in. The blocks are the same, trans casing is the same, etc. You may have to swap coil pack plugs, but it is a very small change needed.

Carlos, not sure on color. Have a lot of other things to do between now and then.

[carlos15]

thats good atleast its almost plug and play. and make sure to keep us posted on any new mods your doing in the future