Recent content by TIppy

Sounds like worn cv joints. Fairly common. You can try turning the steering wheel all the way to the right and driving around for a few full circles. Do the same to the left. This sometimes redistributes the grease in the cv joints.

Sapphire's top speed is 205 mph, similar to Plaid's track package. The Plaid has higher gearing than the previous performance Model Ss, so even at 200 mph the top motor rpm is about the same as before. The carbon fiber will be needed for the Roadster with its 250+ mph top speed. Although, the...

The Plaid against the Sapphire was on 21s and posted a 9.288 at 150 even while not in full cheetah mode.

Yes, each drive unit has its own oil pump. They can sample the DU fluid by the drain plug to check for coolant contamination.

Maybe they can detect the load on the electric oil pump in the DU? If coolant entered the DU, it could change the viscosity of the oil. There is a vent at the top of the DU where hot coolant vapors could escape / condense.

I still have the vibration. I would say it is less but still quite noticeable. Can definitely feel it through accelerator pedal.

Because of poor weather conditions, he expected to run mid 9.20s. He ran a 9.26. He ran a 9.19 two months ago at 90% charge.

Using the published horsepower vs speed plot and taking into account the rotational inertia, loss in the gear box, rolling resistance, tire slip, aerodynamic drag and the mass of the car plus driver, the 170 lbs of removed weight makes a 0.113 second difference in elapsed time in the quarter...

My point is the curve is not as flat as Tesla says. This car has 47 hp more at the peak but 86 hp less at 200 mph than the perfect horsepower plot.This car's hp decreases by 177 from 80 mph to 200 mph, whereas Teslas plot shows a loss of only 62 hp. Also, this could be a car that has more hp...

Absolutely, it's better than a P85D. That had induction motors that are subject to back emf and limited battery voltage. The Plaid has an excellent hp vs speed curve. I'm just saying it doesn't look like it's as good as Tesla says it is. Sort of like the hp they claimed for your P85D.

It's printed right on the bottom of this image. They don't mention multiple pulls. The image you posted is "real time" as they did the pull. Then they immediately fade into the uncorrected plots.

That's corrected data. It's being corrected for the local density altitude which doesn't affect electric motors. That's why they show the uncorrected data later in the video. I mean "already" because the hp curve isn't as flat as Tesla says it is. At 160 mph it should be 1004 hp, but on the...

Plaid has 1067 peak hp (uncorrected) at the hubs and is already down to 948 hp at 161 mph. So at 200 mph it looks like it would be down to 890 hp where Tesla's plot puts it at 976 hp. That's falling off a lot faster than the perfect horsepower plot that Tesla made available which may be why...

On the P85 since there was no issue with traction, you can see that the beginning of the hp vs speed is dead straight, implying constant torque. The P100D's torque increases from its initial value. You can see this because the slope of the hp vs speed curve gets steeper with speed. The Raven's...

Horsepower is the product of torque and rpm. That is, torque is Horsepower divided by rpm, so both horsepower and rpm affect torque. Below a certain rpm for a given horsepower the torque becomes greater than the traction the tires can provide. At this point the pre-programmed torque is just...