[Dustin_mud]

Yes I seen that it was a built motor, but I also thought he had that built before the Hv's came out?....never mind I found where he had the "built", are these mods someone could do with a shop?

[Dustin_mud]

Also I'm not looking for the almost 700hp he has, I'm more looking for 450 to 500.

[danh818]

Dustin,
I am working on a Porsche 944 conversion using an HV11, WarpDrive Industrial 360v 1400amp, and using a Gear Vendors overdrive as the transmission. I am quite confident that this combination will yield ample power for a "performance" street car.

[Dustin_mud]

What kind of power are you looking to put down?

[danh818]

My '87 944 N/A came stock with only 150hp and the Turbo S eventually made 250hp. So I plan to start around 300hp. With a curb weight close to 2500lbs that seems like it ought to be enough car for me, but I'm usually not satisfied until I break something. I do intend to push the controller to its 360v 1400amp limit after getting the weigh balance and suspension dialed in.
I'm sure it won't be long before I hatch a plan to liquid cool the thing and give it as much current as this simple equation will allow: 360V*1400amp=Nm>$/wallet

[Dustin_mud]

So is my math right? A 320v pack with 1400a will give around 600hp at the shaft yes?

[Dustin_mud]

I know there's stuff like sag to worry about with batts, I still have a lot to learn about them. I read that pack made with a123s and headways work better for high power conversions, I'll have a budget of 10 to 13k for batts. What's my best option?

[John Metric]

Originally Posted by Dustin_mud

So is my math right? A 320v pack with 1400a will give around 600hp at the shaft yes?

Use applied motor voltage times applied motor current, that is your motor input. Then multiply by motor efficiency, 80-90% depending on heat and other factors. Then take off about 10% for drivetrain efficiency. That would be your rear wheel kiloewatts, times 1.341 for rear wheel horsepower RWHP.

Or if you want 300 rear wheel horsepower, calculate backward and see what you have to put into the motor. Then build a pack to put out those kilowatts at the sag level. Knock off 1% for controller efficiency, a few more percent for cabling and connections. Usefull to find a sag curve, amps versus voltage.

Then remember that is peak power, only made during the period before you motor emf starts to fight you. If you can use gearing to keep the motor in that rpm band to make that power all the time. But remember the Warp motors have about a 200amp continuous rating so don't put out 1400 amps for too long.

[Dustin_mud]

Does anyone make upgrades for the 11hv to make it withstand the power I want to make, I have read there's a shop that can do the work but sounds shady. Would like to do the work myself if someone builds the parts

[DIYguy]

It's not so much about the "power u want to make", it's about for how long u want to make it. The Warp 11 is probably about a 20 or 25 hp motor approximately. This is a continuous rating. Like all electric motors, you can "over power" it for shorter time.
If you want continuous high power (unlikely, but possible) then, you need to look at water cooled AC perhaps or an air cooled motor with a higher continuous rating.
There are many mods done to improve (protect) a motor from destruction. . but it is very specific to the kind of damage anticipated. i.e., high rpm, prolonged higher current, higher voltages etc.
There are 8" motors taking two thousand amps. . . but for short times.
What is it that you want to do, and for how long?