nice how-to, thanks for posting it!
vacuum breaks
well I have been thinking of putting vacuum breaks on my ev. now, I have been driving it with out vacuum breaks since the conversion, It just wasent that big of a deal to me. I find myself in need of a weeked project so now its vacuum breaks for my ev. you all know by now that im a cheapskate so, YES here they are vacuum breaks on a budget.
if you want power breaks and dont want to kill your wallet here's how to do it.
1. 12v vacuum pump, on ebay 64.99 + free shipping, how ever i dont like to wait for anything so
vacuum pump from your local napa auto parts store part # bk6002973 $84.99 + tax and walk out with it.
2. pvc pipe and end caps and plastic barbed fittings from home depot $20.00
3 inline fuse block from auto zone $5.00
this pump is pretty quit with the hood closed, and gives 15 inches of vacuum. Now I know, I know, most cars require 25 inches of vacuum for the breaks. well at 15 inches this pump stops my 96 nEon with ease, so if your car is around the same size/weight it will work well for you too. but if you feel that you need more vacuum simply add another in parallel. the pump is almost plug and play, just wire it to the keyed 12v on the car and attach the hoses and cylinder. it has an auto shut-off at 15 inches of vacuum so you dont even need a pressure switch. make your cylinder and hook it up, and then..... power breaks, and it pulls about 2 amps of 12v power.
even if you needed 2 pumps and bought them both from napa, it still would not cost more than $200.00 so you cant get the pump for that price anywhere.
shopping list
pump from napa $93.00 out the door
2" pvc pipe $4.00
2 2" end caps $8.00 all bought at home depot
3/8 barbed fitting $3.00
1/8 barbed fitting $2.00 all bought at ace hardware ( home depot dident have the elbow fittings)
1' of 3/8 vacuum line $2.00
3' of 1/8 vacuum line $2.00 all from autozone
pvc glue and epoxy for the fitting I had at home
3 hours of install time
total is: $114.00
and it works great
now in some cases you might need to make the cylinder shorter and fatter, just use bigger diameter pipe.
if you want power breaks and dont want to kill your wallet here's how to do it.
1. 12v vacuum pump, on ebay 64.99 + free shipping, how ever i dont like to wait for anything so
vacuum pump from your local napa auto parts store part # bk6002973 $84.99 + tax and walk out with it.
2. pvc pipe and end caps and plastic barbed fittings from home depot $20.00
3 inline fuse block from auto zone $5.00
this pump is pretty quit with the hood closed, and gives 15 inches of vacuum. Now I know, I know, most cars require 25 inches of vacuum for the breaks. well at 15 inches this pump stops my 96 nEon with ease, so if your car is around the same size/weight it will work well for you too. but if you feel that you need more vacuum simply add another in parallel. the pump is almost plug and play, just wire it to the keyed 12v on the car and attach the hoses and cylinder. it has an auto shut-off at 15 inches of vacuum so you dont even need a pressure switch. make your cylinder and hook it up, and then..... power breaks, and it pulls about 2 amps of 12v power.
even if you needed 2 pumps and bought them both from napa, it still would not cost more than $200.00 so you cant get the pump for that price anywhere.
shopping list
pump from napa $93.00 out the door
2" pvc pipe $4.00
2 2" end caps $8.00 all bought at home depot
3/8 barbed fitting $3.00
1/8 barbed fitting $2.00 all bought at ace hardware ( home depot dident have the elbow fittings)
1' of 3/8 vacuum line $2.00
3' of 1/8 vacuum line $2.00 all from autozone
pvc glue and epoxy for the fitting I had at home
3 hours of install time
total is: $114.00
and it works great
now in some cases you might need to make the cylinder shorter and fatter, just use bigger diameter pipe.
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