[major]

A liquid TC does the exact same thing. You have a stator vane angle vs a rotor vane angle. The resulting vector is what multiplies the torque.

I said the TC multiplies torque at the expense of rotational velocity. It uses a mechanical advantage accomplished with hydraulic fluid. But clutches do not. They simply slip. Torque in equals torque out. Power out is proportional to the rotational velocity. The rest of the power in is lost as heat.

 

[McRat]

I said the TC multiplies torque at the expense of rotational velocity. It uses a mechanical advantage accomplished with hydraulic fluid. But clutches do not. They simply slip. Torque in equals torque out. Power out is proportional to the rotational velocity. The rest of the power in is lost as heat.

Turn 460rwhp at 0 rpm into calories, and apply it to 12 lbs of steel. It would fail, since steel softens starting at 500°F. 6000HP?

Like I said, we need to agree to disagree. I've never changed the mind of a single "clutches lose all their HP" guy ...

But I have violated quite a number of automatic Vettes with more HP. No way I shift faster than digital controlled automagic.

 

[McRat]

Getting back on the EV topic ... If you burn brushes or otherwise damage components at low rpm, a TC would stop that from happening.

 

[major]

Getting back on the EV topic ... If you burn brushes or otherwise damage components at low rpm, a TC would stop that from happening.

I suppose you mean by avoiding the low RPM on the electric motor However from what I see, the zorches occur at higher RPM on the drag strip.

 

[JRP3]

No, an automatic will shift smoothly with a locking TC. We lock our converters immediately after the 1-2 shift and leave it locked for 2-3, 3-4, and 4-5.

Ok, so what happens from a stop, no idle, no fluid pressure, when taking off with an unlocked torque converter?

 

[Batterypoweredtoad]

I said the TC multiplies torque at the expense of rotational velocity. It uses a mechanical advantage accomplished with hydraulic fluid. But clutches do not. They simply slip. Torque in equals torque out. Power out is proportional to the rotational velocity. The rest of the power in is lost as heat.

Top fuel dragsters use clutch slip to their advantage, it can't be discounted because it is inefficient.

 

[major]

Top fuel dragsters use clutch slip to their advantage, it can't be discounted because it is inefficient.

I don't discount it, but the clutch gives no mechanical advantage in the sense there is no greater torque coming out of the clutch than is put into the clutch. The torque out is equal to the torque in.

 

[John Metric]

Re: DC Plasma - Build Thread - 9Sec Fiero

Already in the midst of a new transmission.
This is a photoshop of my next transmission I am building for Assault&Battery. Got the Lenco and second GV, waiting on the multi GV in the middle. Mounted the Lenco already.

http://www.diyelectriccar.com/forums/showthread.php/assault-n-battery-build-thread-74539p5.html

 

[McRat]

Re: DC Plasma - Build Thread - 9Sec Fiero

Already in the midst of a new transmission.
This is a photoshop of my next transmission I am building for Assault&Battery. Got the Lenco and second GV, waiting on the multi GV in the middle. Mounted the Lenco already.

...

Very sweet!

Sorry for the hijack.

 

[JRP3]

If anyone want's to continue the auto trans discussions there are a couple of existing threads we can use:
http://www.diyelectriccar.com/forum...s-why-automatic-gearboxes-work-evs-29101.html

http://www.diyelectriccar.com/forums/showthread.php/powerglide-secrets-evers-should-know-22045.html

 

[John Metric]

Re: DC Plasma - Build Thread - 9Sec Fiero

If anyone want's to continue the auto trans discussions there are a couple of existing threads we can use:
http://www.diyelectriccar.com/forum...s-why-automatic-gearboxes-work-evs-29101.html

http://www.diyelectriccar.com/forums/showthread.php/powerglide-secrets-evers-should-know-22045.html

OK, here is stage one of Assault&Battery's new transmisison. See the build on facebook too. "Lonestar EV Racing Team"

 

[DanGT86]

Am I correct in assuming that the transwarp splined shaft is stronger than the standard warp9 shaft? Is your front motor the standard warp output shaft or is it a transwarp with a splined coupler?

 

[John Metric]

Re: DC Plasma - Build Thread - 9Sec Fiero

Am I correct in assuming that the transwarp splined shaft is stronger than the standard warp9 shaft? Is your front motor the standard warp output shaft or is it a transwarp with a splined coupler?

Yes the Twarp9 has a 1.375" 32 spline DE output shaft, very rugged.
The TWarp9 CE end is 1.125" round 1/4" single key shaft.
The Warp9 DE end has a 1.125" round 1/4" single key shaft.
I mate them with a 4" long solid coupler.
I use a custom alloy key in mine for good measure.

The Warp9 CE end is .875" round.

 

[John Metric]

We are moving the Assault & Battery thread over to here...
http://www.diyelectriccar.com/forums/showthread.php/assault-n-battery-build-thread-74539.html

 

[John Metric]

I am inviting all EV enthusiasts who want to venture down here a place to stay and charge and race against Lonestar EV Racing team's latest car Assault&Battery.
ON Memorial day weekend Saturday May 25th 5pm we will be at Lonestar Motorsports Park in Sealy Texas, racing test-n-tune, bracket racing, 1/8th mile and 1/4 mile.
http://www.lonestarmotorsportspark.com/

ON Sunday Memorial day weekend the 26th 3pm we are invited to Alleycat's Memorial Lock-In Grudge Match.
By special invitation from The Texas Alleycat himself racing Pro-Mod and everything from 4.9 to 7.0 brackets A&B will be there to find a 110mph culprit we can sprint past and start our own grudge race.
http://www.houstonmotorsportspark.com/dSched.htm
I will fly the NEDRA banner, so you could call it a NEDRA event but not a sanctioned event, just a nedra-member thing.....

Plenty of time to make your plans....
Metric

 

[John Metric]

Nicely said...

John, you should add that line from McRat on your signature.

The best part about all of this is that John is using true off the shelf parts, not tuned up motors with secret modifications like some other EV Racers.

Really great to see the Warp9's taking 199V each, Netgain is stepping up and implementing new tech into these old tech motors.

Yes I think I will, but now I need a new quote from McRat. What do you call an 8 second car?