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Re: Drivetrain transplant

Posted: Thu Jan 16, 2020 9:52 pm
by jray3
318iEV thank you for posting, and I'll follow with great interest. If you set up a blog or post photos elsewhere, please link here.

Re: Drivetrain transplant

Posted: Fri Jan 24, 2020 6:12 pm
by 318iEV
Hi Jray here is a link to a blog i setup a couple days ago
https://318iev.blogspot.com/

progress may be a bit slow at times as i am studying fulltime, but i will try and keep the blog updated as much as i can :D

Re: Drivetrain transplant

Posted: Tue Jan 28, 2020 6:56 pm
by rmay635703
That is one strange independent rear drive train

If it was more modular you could plop that under the rear of any car

Re: Drivetrain transplant

Posted: Mon Feb 03, 2020 5:36 am
by bradleydavidgood777
318iEV wrote:Hi Jray here is a link to a blog i setup a couple days ago
https://318iev.blogspot.com/

progress may be a bit slow at times as i am studying fulltime, but i will try and keep the blog updated as much as i can :D


Pretty cool seeing everything out on the floor like that. Thanks for sharing. Cool project. I thought I read that it would be difficult for the i-miev computer to work on any other vehicle because of it's sensitivity to tire size. It doesn't even like small differences.

Re: Drivetrain transplant

Posted: Thu Mar 26, 2020 4:54 am
by jray3
Thanks for maintaining the blog. Your reverse- engineering of the gearshift is enough to help us repair the original or replace it with a push button arrangement!
https://318iev.blogspot.com/2020/02/gear-selector.html?m=1

Re: Drivetrain transplant

Posted: Thu Mar 26, 2020 7:37 am
by Don
bradleydavidgood777 wrote:I thought I read that it would be difficult for the i-miev computer to work on any other vehicle because of it's sensitivity to tire size. It doesn't even like small differences.


I *think* the only thing the computer really cares about is a ratio between the front tire circumference and the rear tire circumference. There should be a multitude of size combinations that it would accept without any problems

Don

Re: Drivetrain transplant

Posted: Sat Aug 29, 2020 4:17 am
by 318iEV
Here are the co-ordinates for the iMIEV's motor bolt holes i used to machine my adapter plate... thought this could be useful to others if anyone decides to do an iMIEV transplant too.

The co-ordinates are from top right to top left (clockwise) when looking at the face of the plate that will meet with the motor.
0,0 being the center of the motor shaft
C/B is counter bored 14mm wide (5mm deep for alignment pins)
format: X / Y ~ hole size in mm

71.95 / 113.4 ~ 11.1mm C/B
107.4 / 0.01 ~ 11.1mm
30.24 / -103.055 ~ 11.1mm
-101.74 / -90 ~ 9mm C/B
-134.4 / 15.225 ~ 9mm
-71.95 / 113.341~ 9mm

for pics and more detail:
https://318iev.blogspot.com/2020/07/mot ... nates.html

Re: Drivetrain transplant

Posted: Sat Aug 29, 2020 6:39 am
by kiev
That's some good machine work there, making progress.

i thought it was clever to use the starter bolts for mounting a torque tube from the transmission to the rear motor mount. Will you also have a solid or flexible link to the chassis?

Did the motor bolt pattern end up being arranged on a bolt circle with respect to the shaft center, or was it something irregular or offset from the centerline?

Re: Drivetrain transplant

Posted: Sat Aug 29, 2020 2:10 pm
by 318iEV
The motor and transmission is rubber mounted to the chassis, with a frame that also holds the motor controller, OBC, Vacuum pump, and power steering pump on top of the motor. Photo: https://photos.app.goo.gl/Ser7gnJDmtm3Uo5FA

Almost all the bolt holes for the motor are different distances from the center, and different distances from each other by a few millimeters to a few centimeters so it can look almost circular, but it’s definitely irregular.