tag:blogger.com,1999:blog-2270124316233555550.post2345139226596045715..comments2023-01-26T20:59:29.216-08:00Comments on Porsche 914 EV Conversion: Reflections on Converting a 914 to an EVTimKhttp://www.blogger.com/profile/09059780797709299125noreply@blogger.comBlogger13125tag:blogger.com,1999:blog-2270124316233555550.post-55090222212498268272009-10-15T19:25:10.190-07:002009-10-15T19:25:10.190-07:00The service has improved! But it still took 3 year...The service has improved! But it still took 3 years to complete the order. Bill Lentfer has been very helpful in finishing the last few thing and refunding money for the rest that I got elsewhere.Hope it continues.onei57https://www.blogger.com/profile/04174611837994461555noreply@blogger.comtag:blogger.com,1999:blog-2270124316233555550.post-89917721110851319662009-10-10T16:37:06.800-07:002009-10-10T16:37:06.800-07:00For the record, Electro Automotive has improved th...For the record, Electro Automotive has improved their customer service exponetially as they have hired more experts to field calls and assist with problems. I have always been answered within one to two days. I am Mark and I am building an electric vehicle using a modified Bradley GT II. I am using the AC24LS and DMOC445. She is almost finished, her name is EVIE.EVIEhttps://www.blogger.com/profile/12856789825654765812noreply@blogger.comtag:blogger.com,1999:blog-2270124316233555550.post-16282974056854404462008-02-13T18:44:00.000-08:002008-02-13T18:44:00.000-08:00I've done this. The next thing I'm going to do is ...I've done this. The next thing I'm going to do is to move the cable to the next hole up on the potbox and adjust the peddle stop down.onei57https://www.blogger.com/profile/04174611837994461555noreply@blogger.comtag:blogger.com,1999:blog-2270124316233555550.post-49776606041171132342008-02-13T15:41:00.000-08:002008-02-13T15:41:00.000-08:00Hi Matt, Both Ross and I ran into the same issue ...Hi Matt,<BR/><BR/> Both Ross and I ran into the same issue and solved it with DMOC parameter tweaks. Check out Ross's entry here:<BR/><BR/><A HREF="http://volt914.blogspot.com/2007/12/150-miles-and-some-tuning.html" REL="nofollow"><BR/>http://volt914.blogspot.com/2007/12/150-miles-and-some-tuning.html</A><BR/><BR/>Cheers,<BR/>TimTimKhttps://www.blogger.com/profile/09059780797709299125noreply@blogger.comtag:blogger.com,1999:blog-2270124316233555550.post-48303030097577090062008-02-13T15:02:00.000-08:002008-02-13T15:02:00.000-08:00I have about 12 miles on it. Needs to get better a...I have about 12 miles on it. Needs to get better accleration and speed to be able to keep up with traffic. I was working with Beth at Azure performance tuning the motor in late January when we got a lot of snow and I went to Vegas for the Super Bowl. Waiting for the snow to melt off now. The throttle is only going .5 according to the controller so there is room for improvement. I'm just after a normal keep up with traffic situation.onei57https://www.blogger.com/profile/04174611837994461555noreply@blogger.comtag:blogger.com,1999:blog-2270124316233555550.post-34143626035253858052008-02-12T18:40:00.000-08:002008-02-12T18:40:00.000-08:00Hi Matt and Dave, Thanks for your comments. I do...Hi Matt and Dave,<BR/><BR/> Thanks for your comments. I do think a higher voltage (i.e. 12V batteries) would give slightly more power at the expense of range. The controller can be tuned for the higher voltage, but will limit the current going into the AC24 motor to prevent it from warping or burning out.<BR/> Dave, the AC kit has an input on the controller to go in reverse; however, the ElectroAuto kit uses the manual reverse gear on the transmission to go in reverse. DC motors can also go in reverse if you have a special "reversing" contactor that flips the terminals. It's a bit more cost, but works if you don't have a transmission.<BR/> Matt, how is your car running?<BR/><BR/>Cheers,<BR/>TimTimKhttps://www.blogger.com/profile/09059780797709299125noreply@blogger.comtag:blogger.com,1999:blog-2270124316233555550.post-14229271902974666062008-02-12T18:17:00.000-08:002008-02-12T18:17:00.000-08:00Tim,You and the others who have been working on th...Tim,<BR/><BR/>You and the others who have been working on these 914 kits and sharing their experiences have been inspirational as well as informative. Through it all, I most appreciate your comment that you intended this project to be something of a hobby. I'm sure there will be moments I'll have to remind myself of that when I really get into it.<BR/><BR/>Your post has also made me pause to reconsider my current plans. I personally like the idea of the AC kit and was all set to go that route, but your latest comments have me rethinking that approach.<BR/><BR/>I didn't select a mid-engine Porsche as my platform only to be envying the performance of Hyudais. Now, I'm thinking I need to revisit the DC motor potential for my project.<BR/><BR/>Say, does the 914 AC kit use reverse gear to back up or is it designed to reverse the motor? One of the things that attracted me to the AC motor was its ability to run in reverse. I'd be interested to hear anyone's experiences on that score.Dave Mhttps://www.blogger.com/profile/11767474822732543817noreply@blogger.comtag:blogger.com,1999:blog-2270124316233555550.post-41780610348547067792008-02-12T15:47:00.000-08:002008-02-12T15:47:00.000-08:00The greatest help to me was the blogs that you and...The greatest help to me was the blogs that you and the others have done. Electro Auto is one of the few places that offer a kit type conversion and it is well thought out. But the lack of cusomer service and slow delivery make this a poor choice but this is the only choice. That makes the blogs very valuable as well as EV community. Tim has been a great help, the support I should have gotten from Electro.<BR/><BR/> I believe the situation makes it a great time for someone to come up with a kit that will use a newer vehicle that will have a strong enough power to get out of the way of its self. A PT Cruiser maybe? Cheap enough, lots of room for batteries.<BR/><BR/> I've just started to "tune" mine so I'm not sure how well it will run but it does not keep up with traffic now. A long way from the 100 MPH car I was promised by Electro.<BR/><BR/> Now that the venting is over, do you think 12 volt batteries would have helped (maybe 16 = 192 volts)? I think the controller can be updated. Just an wondering....onei57https://www.blogger.com/profile/04174611837994461555noreply@blogger.comtag:blogger.com,1999:blog-2270124316233555550.post-44396791431322628792008-02-10T06:26:00.000-08:002008-02-10T06:26:00.000-08:00Yep, that's why I chose it. It's a monster, thoug...Yep, that's why I chose it. It's a monster, though - 233 pounds, 312 volts, it'll rip your lungs out, Jim. With 4x performance comes 3x the weight and 3x-4x the energy use...Ross Cunniffhttps://www.blogger.com/profile/06668735330276350432noreply@blogger.comtag:blogger.com,1999:blog-2270124316233555550.post-4251830166400182222008-02-09T21:22:00.000-08:002008-02-09T21:22:00.000-08:00Hi Ross, Based on the graphs you have at your ne...Hi Ross,<BR/><BR/> Based on the <A HREF="http://electrojeep.blogspot.com/2008/02/parts-on-way-and-motor-notes.html" REL="nofollow"> <BR/>graphs</A> you have at your new ElectroJeep blog, it looks like you have the best of both worlds. High torque at low RPM for fast starts at stoplights as well as regenerative braking. It looks like the AC55 has just under four times the torque at zero RPM as the AC24!<BR/><BR/>Regards, TimTimKhttps://www.blogger.com/profile/09059780797709299125noreply@blogger.comtag:blogger.com,1999:blog-2270124316233555550.post-52751176120143251112008-02-09T21:10:00.000-08:002008-02-09T21:10:00.000-08:00For me, the regen braking is key, since I drive it...For me, the regen braking is key, since I drive it in town exclusively. But, your mileage might vary (literally!). FWIW, I am going AC on my next conversion, too (but using the much bigger AC55 motor).Ross Cunniffhttps://www.blogger.com/profile/06668735330276350432noreply@blogger.comtag:blogger.com,1999:blog-2270124316233555550.post-15614965034823297752008-02-09T18:54:00.000-08:002008-02-09T18:54:00.000-08:00Hi Roger, I guess I must have had a bad DC/DC uni...Hi Roger,<BR/><BR/> I guess I must have had a bad DC/DC unit. The regen is nice for additional braking in the heavier car, but it doesn't really extend the range, especially for freeway driving. Please definitely contact me the next time your in PDX and we'll go for a spin.<BR/><BR/>Cheers,<BR/>TimTimKhttps://www.blogger.com/profile/09059780797709299125noreply@blogger.comtag:blogger.com,1999:blog-2270124316233555550.post-85555121162091061972008-02-09T18:33:00.000-08:002008-02-09T18:33:00.000-08:00Back to the DC/DC problem: You mentioned the noise...Back to the DC/DC problem: You mentioned the noise. My CC Power DC/DC is absolutely quite. I'm wondering if there might have been some kind of grounding or ground loop problem? (Or, as you mentioned, just a defective unit.)<BR/><BR/>I've often wondered if I'd been better to have sprung for the AC power pack. Your description convinces me that the DC motor is best for my situation. It's very smooth and controllable. True, I give up regen, but in the long run, will it make any material difference?<BR/><BR/>I'd love to see your vehicle. Maybe the next time I'm in PDX we can arrange a cup of coffee at Starbucks. Same for you, if you get to Pullman.<BR/><BR/>Regards, RogerRoger Daisleyhttps://www.blogger.com/profile/10752698755981213856noreply@blogger.com