We are starting with 14 modules, which is the old Model S 60 configuration. It will be very tight getting them in. We were able to get 14 foam models under the hood while accounting for just enough between them for connections and mounting. But it was still best-case, and our brake booster - while smaller than the original- will still eat up a bit of that space that we tested with.That's great ,
Maybe I missed out , but , how much modules will you put in ? , all 16? to get proper voltage..
The forums embedded YouTube player - what you get with the YouTube icon in the graphic editor or the YOUTUBE commands - use Adobe Flash. That works for some users, but is blocked by some browser and operating system combinations, leaving only a big non-functional blank.I can't get the embedded YouTube function to work- if anyone has some advice I'd love to hear it!
Okay, the inboard stub is Tesla, but not the inboard CV? Do you know what CV joints were used? I wonder if they might be the very popular Porsche 930 type, a bolt-to-flange style for which a variety of flanges are available. What "level" in their axle system did you choose?We explored various methods to mate the output of the Tesla to our BMW hubs. We couldn’t modify and reuse the original BMW axles as they would twist like paper straws under the high torque of the Tesla unit.
We turned to The Driveshaft Shop in North Carolina whose slogan is “We specialize in the impossible”, and for good reason. We sent them the inner portions of a pair of Tesla axles and a host of measurements. A few weeks later a beautiful new pair of Frankenstein axles showed up and bolted right in. The craftsmanship is stunning.
Beautifully crafted axles. They are completely new but the far right section which was out of a Tesla. The left end bolts to the BMW wheel hub and the right spindled end inserts into the Tesla drive unit.
Sorry Brian I actually don't know where we landed there. After a couple conversations with Lee on the phone he recommended a setup based on my car/drive unit configuration. I know we discussed the 485HP that my unit would be equivalent to, along with the high torque. Axles and CVs aren't my universe, so I felt that I didn't have anything to contribute to the conversation.
ThanksFrom my invoice:
"108mm Axle with 28 spline bar and 108mm CV's on both ends with Chromoly internals (Made with 14-1/4" 28/28 Spline Axle Bar)
108mm Head for welding to CV's and Driveshaft Trans yokes 1018 or 1020 steel
Machine / Weld Tesla Inner to 108 Flanges"
Yes, that I all understood, it was your question of the CV that I really didn't know. The 94/108mm is the stock BMW hub. They used the 108 at the inner as well to match them up.Thanks
The description doesn't explain what was done on the outboard end to mate the bolt pattern of the outer 108 mm CV body (six M10 bolts on a 94 mm diameter circle) to the BMW's stub axle. The CSE appears to use this style of CV joint; it seems unlikely to me that it would be the same size, but presumably this axle specialist has the sizing right.
The breakdown was as much an exercise in understanding the setup for me and getting confirmation, as information for anyone elseYes, that I all understood, it was your question of the CV that I really didn't know. The 94/108mm is the stock BMW hub. They used the 108 at the inner as well to match them up.
That is a nice feature. It turns out that according to the GKN Löbro catalog the 108 mm joint is "size 15", only midway up GKN's range of sizes and capacities.Clearly the CSL racing variant of the coupe that dominated in the early 70's was a beast. I assume they shared the same hubs as the street cars like mine, fortunately for me. I actually asked Lee about that while I was sending him all my measurements: "Will the hubs be a weak link" and the answer was no.
There certainly is diversity, and I agree that's a good thing!Thanks again Brian, you sure know your driveline That's what I learned about this group early... I assumed it would be full of "EV" folks more than car historians and enthusiasts, but I have been proven wrong many times. There's a great diversity of skills here across all aspects of autos, old and new.