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  #31  
Old 10-30-2011, 09:32 PM
shoup shoup is offline
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Default Re: E-E30 BMW Build

I also did some work in the engine bay. I mounted the electric panel and started fitting the batteries. Today I hooked the motor up to 12V and everything turned as expected. I still have plenty of wiring to do.
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File Type: jpg engine bay wo batt.jpg (93.7 KB, 27 views)
File Type: jpg engine bay w batts.jpg (94.7 KB, 35 views)
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  #32  
Old 11-15-2011, 10:11 PM
shoup shoup is offline
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Default Re: E-E30 BMW Build

I have been keeping the momentum in the push to finish this project. Over the weekend got quite a bit accomplished.
The wiring is finished.

Under car batteries are in place.

I hooked up the gauges, for now I just have voltage, current and brake vacuum (I had a spare boost gauge lying around). This is just a temporary mounting of the gauges and plan to get something more elegant.


Today I finished hooking up all the batteries and did the first voltage check.


The only issue right now is I seem to have a high voltage short to vehicle ground somewhere. I need to track that down before turning anything on.
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  #33  
Old 11-19-2011, 07:09 PM
shoup shoup is offline
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Default Re: E-E30 BMW Build

I figured out the short to the frame was caused by the covers I was using over some of the battery terminals. I had used some heater hose in a few locations and apparently the rubber the heater hoses are made of are semi-conductive. I changed them out with some PVC hose and now everything looks good.

Last night I did some more electrical debugging, bled the brakes and put the car back on the ground.

Today the car moved under its own power for the first time since I have owned it. I drove it up and down the driveway a few times and everything seemed to function as planned. Tomorrow I plan to get it out on the road. The car looks good after a bath.

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  #34  
Old 11-19-2011, 07:21 PM
shoup shoup is offline
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Default Re: E-E30 BMW Build

I also charged the car up for the first time without any issues.


Here is a video of the first time I pulled the car out of the garage.
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  #35  
Old 11-20-2011, 01:05 AM
DavidDymaxion DavidDymaxion is offline
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Default Re: E-E30 BMW Build

Awesome!
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  #36  
Old 11-20-2011, 07:43 AM
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Default Re: E-E30 BMW Build

The car looks beautiful! Do you have an idea of the final weight yet?
I like the 944 (turbo?) in the background.

It looks like you got the cells pretty low front and back, even though it's lead I bet the car will handle pretty well still.

What kind of range do you expect?
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  #37  
Old 11-20-2011, 08:11 AM
shoup shoup is offline
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Default Re: E-E30 BMW Build

Quote:
Originally Posted by rwaudio View Post
The car looks beautiful! Do you have an idea of the final weight yet?
I like the 944 (turbo?) in the background.

It looks like you got the cells pretty low front and back, even though it's lead I bet the car will handle pretty well still.

What kind of range do you expect?
That is a 944 Turbo which will be maintaining its gas motor for pure driving enjoyment.

Right now it looks like the BMW sits lower in the back than the front and I may need to adjust some of the batteries to get back to an acceptable weight distribution. I want my electric car to handle well as I plan to AutoX it. I have tried to keep all the added weight within the wheelbase and as low as possible.

I expect a range of 30-40 miles and plan to drive it to work daily as that is only a 5 mile trip one way.

I still need to get a cover to go over all the electrical connections in the engine bay and tidy some things up. I don't think this car is ever going to really be finished. There are always some improvements to be made.
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  #38  
Old 11-21-2011, 06:24 AM
MI-nick MI-nick is offline
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Default Re: E-E30 BMW Build

very impressive.
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  #39  
Old 04-24-2012, 09:02 AM
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Default Re: E-E30 BMW Build

looks like a great build.... I am wondering how it is coming, and how your DIY transmission adaptor and moving the PS rack worked out?
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  #40  
Old 04-25-2012, 06:17 PM
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Originally Posted by dtbaker View Post
looks like a great build.... I am wondering how it is coming, and how your DIY transmission adaptor and moving the PS rack worked out?
Everything is working great and I now have 1000mi on the car. The biggest issues since I got the car on the road have been a flat tire and a blown fuse. The fuse on the low voltage side of my contactor blew when my 12V battery was low.

I have even been using the $15 Surplus Center 135V vacuum pump without an auxiliary reservoir. It takes 15-30 seconds to pull down to 20in*hg. It comes on quite a bit when I am driving, but maintains vacuum. I think I need to adjust the pressure switch because it seems like the max vacuum the pump can pull is around 20in*hg. I can hear the pump when I first turn on the car, but not after I am driving and the electric motor is running.
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