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Old 07-21-2011, 10:12 AM   #66 (permalink)
adamj12b
Master EcoModder
 
Join Date: Apr 2009
Location: Charlton MA, USA
Posts: 463

EVVette - '71 Chevy Corvette Coupe
Thanks: 31
Thanked 183 Times in 94 Posts
Well its been awhile since I was able to get anything done on the vette. But, Now things are flying.

Back in june, I was able to get a deal on the motor. Picked up a brand new Warp11HV for $2500 + 288 for shipping! This is what really jump started the progress.

The motor got delivered June 24. I had it shipped to my fathers work because I could save $130 because its a business. He brought it by my father-in-laws where were working on the car that evening.


Untitled by AdamBrunette, on Flickr


Untitled by AdamBrunette, on Flickr


Warp11HV by AdamBrunette, on Flickr

Well after opening it up, we had to play with it. I used my JTM Power S40 lithium jump starter that does 12 and 24V to spin the motor.

‪EVVette Warp11HV First Power Up‬‏ - YouTube


Other then that, We have mostly been working on restoring the car. we have mounted the body on a dolly to be able to wheel it around and the frame is going to the repair shop tomorrow.


Untitled by AdamBrunette, on Flickr

We found out that it is bent in 2 different directions in the rear. It will be about $300 to have it professionally straightened. Once it gets back, we will sand blast and paint it and install all the new suspension.

I also dropped the stuff off to my friend to make the coupler. my lathe is currently not working. It will consist of a 2012 Taper-lock bushing and a hub made from a 13 tooth 100 size sprocket. The spacer part is made from 6061 aluminum. A pilot bushing will be pressed into the center of the spacer for alignment of the transmission.


Untitled by AdamBrunette, on Flickr

Also, while talking about the transmission, We took it apart and changed the input shaft on it from a 10 tooth to the 26 tooth. This is much stronger as the load is distributed over 26 surfaces instead of 10. Heres a shot of inside a 4 speed Muncie M20.


Untitled by AdamBrunette, on Flickr

The aluminum adapter plate has also been ordered and should be here this week or early next week. it is a piece of 2.5" thick 15.5" x 17/5" 7050-T7 aerospace grade aluminum. I will be machining it on a bridgeport to locate the center bore and dowel pin holes and some rough contouring. When im done, I will put it on a Matsuura CNC mill to contour the visible side and cut some pockets in the back to remove weight. I will start with 69 pounds of aluminum and end up with 19.

Last weekend I did a bit of mocking up of the bell housing using some plywood. I machined the 4" center bore and some of the motor bolt holes. I also cut in the dowel pin holes and some holes that line up with the bell housing bolt holes. I then bolted it together to check the run-out of the bell housing.


Untitled by AdamBrunette, on Flickr


Untitled by AdamBrunette, on Flickr

What I found is the 40 year old bell housings weren't made to very high standards. The locating hole isnt even round!! it's oval. well I tried another housing and it was a bit better. It was perfectly aligned top to bottom, but was pushed to the left by 0.033" I can get some offset dowel pins that will shift it 0.014" which would put it right in alignment.

A few other things ive been working on is removing the fan inside the motor, which turns out to be alot more of a project then one would ever think. I had to use 2 different pullers, 1 to remove the bearing and one to remove the fan. But the fan didn't come peacefully. It shattered when I tried to pull it. So I ended up having to drill a relief hole in the base of the fan and crack it using a chisel. Well before and after:


Untitled by AdamBrunette, on Flickr


Untitled by AdamBrunette, on Flickr

Another small project Ive been working on is the in dash computer system. Ive purchased a 7" touch screen monitor anf have been working on the software. I plan to run a linux system with web based pages. These will run in full screen so you cant tell its inside a browser, but will allow for easy modification.

Heres a pic of the monitor with gauges and a pic of the BMS screen.


Untitled by AdamBrunette, on Flickr


Untitled by AdamBrunette, on Flickr

The BMS screen is actually being displayed on my iPhone but you can check out it out by visiting this link: Battery Management


Well I will be better about updating from this point on now that progress is happening.

-Adam
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www.EVVette.com - 1971 Corvette Coupe Conversion to all Electric!
www.AdamBrunette.com - Machining, CNC, Robotics and Electronics.

You can download RTD Explorer for the Cougar controllers at www.EVVette.com
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