Need A Quote- RFQ - 2pcs steel motor coupler for Electric car

[rwaudio]

I'm converting a Porsche 944 from gas to electric, I need a steel coupler to connect the output shaft of the electric motor (1 1/8 keyed) to the torque tube splines (Spline count = 23; Pilot diameter = 14.9 mm; Spline diameter = 25.4 mm) and hold the pilot bearing for the drive shaft.

Must be capable of handling 400hp / 400ft-lbs of torque, and 0-7000rpm with no vibration.

I don't have a drawing for this so I'm willing to pay a little extra as a design fee. I can send a clutch alignment tool, pilot bearing and a clutch if necessary to confirm sizing and fit, so someone with automotive/drive line experience prefered or better yet Porsche 944 experience.

Many people use a taper lock setup for this to handle the torque, it will probably need more than just the key, coupler should attach to the motor and slide on to the torque tube shaft as the motor is installed in the car.

Located in Calgary Canada T2Y 4L4.
I need two pcs now, however I would make this available to others so there is potential for future work. So please quote any design work seperate from the materials, machine work and shipping. (If cost of future identical items would be different please specify)

Feel free to contact me for more details: robin at rwaudio dot com

[Dualkit]

I would specify material type and certs, so some hack doesn't make it out of pot metal.

[rwaudio]

Originally Posted by Dualkit I would specify material type and certs, so some hack doesn't make it out of pot metal.

Thanks for that important point. I will be doing some homework on steel to find out what should be required.

[VanFLT]

HT 9310 is what id go with, its been awhile since ive looked hardness specs so im not gonna recommend what to harden it too.

The splines are gonna most likely have to be shaped which isnt going to be cheap.
But the good news is HT 9310 is going to be stronger than most anything in the rest of the drivetrain so it wont be the part breaking under the torque.

[rwaudio]

I'd like to thank everyone for their quotes, one has been chosen, this is now closed.