frosty1949

Is anyone out there interested in using electric traction motors on their 944 for added low end torque? I am planning on doing a design build on my 944 to add 100Nm torque to each corner. I need rear quarters to widen the body to accommodate the traction motors inboard of the unsprung weight and cooling ducts. These motors are very energy to torque efficient but at full load produce a lot of heat.

Paulyy

I'm not sure why you would go though all that trouble for 2 electric motors that will boost your bottom end. Where most sports cars (proper ones like our 944s) are all midrange to top end power where the car will spend most of its time around the track.

By adding extra weight in motors, batteries and other stuff to make it work, you're just slowing down the car and decreasing your fuel range per tank.

chrenan

The reason I like old cars is because they don't have that sort of thing.

Adonay

why would i want more low end torque?

eman930

How about just sizing the turbo correctly and youll be all set

Van

Wouldn't the generation of heat imply they are not very efficient?

V2Rocket

how big/heavy are they?

Ronin-951

Ya, I like the idea, just don't think the technology in Batteries and Caps is ready yet, see 'Formula 1' for proof. Un-Sprung weight is a problem for wheel motors, so, I'd be thinking replacing the Starter Motor for just off-the-line, or a Flywheel or Torque Tube re-fit for more legs. Turning the TT into a motor might be possible with off-the-shelf Water Pump Winding Casings.

frosty1949

Porsche evidently disagrees with you The all new and fastest track car ever the 918 has 3 traction motors and will run Le mans next year. track cars spend most of their energy BRAKING and e accelerating and BTW the 912 get 92 KM on 3 liters of gas in the European mileage ratings.

frosty1949

My design will add almost zero un-sprung weight while compared to bigger brakes and increase the BHP by 100HP. Remember its not how fast you go but how well you go fast!!

Dutch944

Good luck on your 944 with that.. Do you think that you can do this in your garage what has taken Porsche several years to develop and millions of euro's? And than again, check out the previous posts, size your turbo correctly and you're done. And if you think that is not enough, replace the turbo to the other side of the engine, get your engine on a less angle and add a supercharger.. That's less work!


Add zero unsprung weight.. What will you do, add helium? Bigger brakes on the 944 from the N/A to the turbo brakes; no difference in weight, cast iron brakes to cast aluminium! Increase bhp by 100; add boost.

And to your final remark, it's about how fast you go!