"Tuning" my MR Model 3

[WstrnMdwlrk]

I've seen on YouTube and read a few places around here that disconnecting the FR Wheel Speed Sensor will uncork a few extra #hrsprs. Well I've done just that tonight, just for a spin around the local streets, and I'll corroborate it, #HRSPRS!

But lets not stop there. In the review up to disconnection, I did some research to the connectors involved; I really didn't want to break anything.

On Tesla's website, I verified the location here: https://epc.teslamotors.com/#/systemGroups/47392

I believe the offending connectors are Molex automotive connector MX150 2 Way Cable Seal Connection System

Mouser Link: https://www.mouser.com/datasheet/2/276/0340620028_CRIMP_HOUSINGS-698983.pdf

I hope to get a couple mating connectors/pins/sockets and stretch some wire to the cabin and make this "sport mode" accessible.

Of course, I'll do some A/B testing beforehand with an accelerometer to verify the performance increase is worth the effort.

 

[Mod3forMe]

how many more HP?

 

[PoitNarf]

how many more HP?

I think you mean #HRSPRS

Anyway, couldn’t doing this cause faults to be thrown to the computer? I wouldn’t be surprised if doing this screws with ABS or maybe even autopilot.

 

[DdotRoq]

I've seen on YouTube and read a few places around here that disconnecting the FR Wheel Speed Sensor will uncork a few extra #hrsprs. Well I've done just that tonight, just for a spin around the local streets, and I'll corroborate it, #HRSPRS!

I wonder if this would work on the Performance. Also, how much damage, if any, would this cause to the vehicle.

 

[SabrToothSqrl]

I'm guessing it doesn't "add HP", it wouldn't know the front wheel speed, so it doesn't reduce power to maintain traction... just a guess.

someone develop a switch that can make the car more fun by killing the T/C... like I did with my last Wrangler. (Removing the power to a sensor in the middle of the jeep, killed the stability/traction control). putting power back and restarting the engine fixed it.... so a small button switch later and you can spin doughnuts all day!

 

[DdotRoq]

I'm guessing it doesn't "add HP", it wouldn't know the front wheel speed, so it doesn't reduce power to maintain traction... just a guess.

someone develop a switch that can make the car more fun by killing the T/C... like I did with my last Wrangler. (Removing the power to a sensor in the middle of the jeep, killed the stability/traction control). putting power back and restarting the engine fixed it.... so a small button switch later and you can spin doughnuts all day!

So, essentially, Track Mode?

 

[MountainPass]

I'm guessing it doesn't "add HP", it wouldn't know the front wheel speed, so it doesn't reduce power to maintain traction... just a guess.

someone develop a switch that can make the car more fun by killing the T/C... like I did with my last Wrangler. (Removing the power to a sensor in the middle of the jeep, killed the stability/traction control). putting power back and restarting the engine fixed it.... so a small button switch later and you can spin doughnuts all day!

We're getting close on that one

 

[MoreAgain]

We're getting close on that one

Any idea on the retail cost range for this mod? It is top on my list, but have no idea what to expect.

 

[WstrnMdwlrk]

MountainPass
Can you speak to the accuracy of the connector that I've identified? I'd hate to have people misinformed.

Also, have you had a chance to Dyno a MR yet?

 

[MountainPass]

MountainPass
Can you speak to the accuracy of the connector that I've identified? I'd hate to have people misinformed.

Also, have you had a chance to Dyno a MR yet?

No MR dyno yet, we are all snowed in here and just plugging away on new products. We are using CAN for our track mode and retaining ABS, so I can't speak to the accuracy of your connector. We have had a heck of a time finding a certain connector for our track mode setup, despite knowing the brand and part number!

 

[Striker3000s]

Any idea on the retail cost range for this mod? It is top on my list, but have no idea what to expect.

Plus one on this. I would love to get Track Mode function on my standard 3D.

 

[MountainPass]

Plus one on this. I would love to get Track Mode function on my standard 3D.

We aren't sure yet, what are you hoping/expecting it to cost? Just curious, as the price will mostly be determined by hardware and labour to assemble.

 

[Striker3000s]

We aren't sure yet, what are you hoping/expecting it to cost? Just curious, as the price will mostly be determined by hardware and labour to assemble.

My guess / hope would also need to be based off the hardware involved. I would hope to pay $20 but expect to pay between 300 and 500. If it was really involved, it could be more. Also, I would need to know everything it could do.

Keep up the great work. I can't wait to see what you guys do.

 

[MountainPass]

My guess / hope would also need to be based off the hardware involved. I would hope to pay $20 but expect to pay between 300 and 500. If it was really involved, it could be more. Also, I would need to know everything it could do.

Keep up the great work. I can't wait to see what you guys do.

Thank you! Let's aim for $20

 

[Wizard2416]

We're getting close on that one

@MountainPass

Will this modification "release" more power to RWD LR M3s? like will it make them go faster on their 0-60 and so forth?

Thank you.

 

[MoreAgain]

We aren't sure yet, what are you hoping/expecting it to cost? Just curious, as the price will mostly be determined by hardware and labour to assemble.

I'd be happy with < $200.

 

[WstrnMdwlrk]

MountainPass
If you'd share you connector info, I'd be happy to help track down a source.

 

[MikeInFL]

I just want to do donuts in my LR RWD...

 

[ℬête Noire]

Thank you! Let's aim for $20

Well if it's that easy, could you have it so you'll pay me $20 to order it? Oh, and throw in free one of those sweet THE-FUT-URE shirts.

P.S. My expectation was the price to be sub-$1000. At around $500 I'd we willing to take a flyer on it.

 

[gaM3changer]

On Tesla's website, I verified the location here: https://epc.teslamotors.com/#/systemGroups/47392

Hey op, double check the link. For me, it points to the Model S. I'm on mobile so the site is a little wonky and can't fully navigate around. Please verify before you get the wrong part (unless the S and 3 share the same connector).