tag:blogger.com,1999:blog-369941762441967690.post1883523488874546158..comments2022-11-26T01:46:19.151-08:00Comments on EV Z3: Brushes and Carbon DustTim Catellierhttp://www.blogger.com/profile/02801279544184321528noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-369941762441967690.post-65624449612025694602012-03-10T22:18:46.643-08:002012-03-10T22:18:46.643-08:00Alex, that's not the page I was talking about,...Alex, that's not the page I was talking about, but I found the one you need. It's buried in a pdf now, but it's the data George needs to come up with a recommendation.<br /><br />http://www.go-ev.com/end-users/End_User_Manual.pdf<br /><br />page 13. <br /><br />No pressure Alex, but I am looking forward to following your blog once you start the conversion :)Tim Catellierhttps://www.blogger.com/profile/02801279544184321528noreply@blogger.comtag:blogger.com,1999:blog-369941762441967690.post-46408714181571930542012-03-10T11:40:06.966-08:002012-03-10T11:40:06.966-08:00Hey Tim,
Thanks for the tip about the link on Geo...Hey Tim,<br /><br />Thanks for the tip about the link on George's website. I think I found what you're talking about; it goes to http://www.evconvert.com/tools/evcalc/<br /><br />Unfortunately, the choices of parameters are pretty out-of-date; no Li-ion batteries, no Soliton, etc. Maybe that's not the link you meant. In any case, I'll probably still call George and get his opinion. <br /><br />We don't have the heat problem here at all, but performance is important to me. I don't think anything is as effective at convincing people that electric is viable as equal-or-better-than acceleration, and I think I can do better than my stock Subaru acceleration with a conversion.<br /><br />Just paid off the second mortgage this week, so now it may be time to actually start saving for the project!<br /><br />AlexAlexhttps://www.blogger.com/profile/00489761192866964078noreply@blogger.comtag:blogger.com,1999:blog-369941762441967690.post-59970656905272312312012-03-05T14:41:47.483-08:002012-03-05T14:41:47.483-08:00Hi Alex,
Somewhere on Netgain's website, http:...Hi Alex,<br />Somewhere on Netgain's website, http://www.go-ev.com/ they have a form you can fill out that has all the specifics about the car you want to convert. They plug all those numbers in a spreadsheet and it calculates the right motor for you. When I submitted the data, George contacted me and told me that his first impression was that a WarP 9 would do. But after punching in the numbers, it looked like an 11 would be better.<br /><br />He said what made the difference was a couple of factors. The biggest was that I wanted to be able to travel at a sustained 70 mph. I can tell you that traveling that fast now the motor draws about 130 to 140 amps. I don't know what number is too high, but when George asked me how many amps it drew at 70 and I told him, he nodded saying that was ok. <br /><br />We also had concerns about motor temp. Figuring that it was likely to get hot in the Arizona summer, and he felt the 11" would run a bit cooler. <br /><br />I've wondered many times if I could have gotten by with the 9" motor, but it's all academic at this point. <br /><br />The short to ground caused by the dusting is a disappointment to be sure, but I haven't lost my faith in DC motors. However, if I were to do another car, I'd choose AC, but not because of this issue. The new Curtis AC50 and motor combo by HPEVS looks like it performs great and it's very reasonably priced. Plus it adds regenerative braking. But the biggest reason I'd choose it is because I've already done a DC system, so it would be fun to try something new. <br /><br />But as far as whether a 9" or 11" would be better for you? I'd say I would have to defer to George's spread sheet. <br /><br />TimTim Catellierhttps://www.blogger.com/profile/02801279544184321528noreply@blogger.comtag:blogger.com,1999:blog-369941762441967690.post-48430611809173322992012-03-04T21:41:04.966-08:002012-03-04T21:41:04.966-08:00Hey Tim,
Glad to hear that you've isolated the...Hey Tim,<br />Glad to hear that you've isolated the leak. I think I was as surprised as you to hear it was in the motor itself. It does make me second-guess my preference for series DC motors if the brush dust has been a problem for other folks as well. Hopefully the harder brushes will help to mitigate the problem in the future. <br /><br />Since all I have to do these days with EVs is dream and plan and re-plan my Subaru build, I've been meaning to ask you about your 11 inch motor. I think my Subaru will be about the same weight as your Z3 when it's complete, but I'm just not sure if the 9 or 11 inch motor would be the best choice. I guess the advantage I see to the 9 inch is a torque range that goes into slightly higher rpms, with the benefit of less shifting. Of course, the 11 inch has more low end torque. Can you offer an opinion as to which would be better?<br /><br />AlexAlexhttps://www.blogger.com/profile/00489761192866964078noreply@blogger.comtag:blogger.com,1999:blog-369941762441967690.post-42147098984959762662012-02-28T09:47:52.803-08:002012-02-28T09:47:52.803-08:00No kidding! My initial reaction to finding the le...No kidding! My initial reaction to finding the leak in the motor was complete disbelief. Suddenly, I was in a world that made no sense. Fortunately that only lasted for an hour or so until a search on EVDL revealed the likely cause.Tim Catellierhttps://www.blogger.com/profile/02801279544184321528noreply@blogger.comtag:blogger.com,1999:blog-369941762441967690.post-70556796322080566082012-02-27T15:55:15.934-08:002012-02-27T15:55:15.934-08:00Wow...that's a pain in the ass.
Now...imagine...Wow...that's a pain in the ass.<br /><br />Now...imagine you're the first guy that ever had that problem trying to trouble shoot it. Holy shit...that's some frustration!Gam0rahttps://www.blogger.com/profile/02618919318235009232noreply@blogger.com