flyingbrick Posted December 22, 2015 Author Share Posted December 22, 2015 Why do you need electric vacuum? Must be for brake booster? I think you should drive a small diesel alternator vac pump off the motors forward output shaft. Be like .01 power drain and you'll have all the vacuum you could want (use a vacuum canister and one way valves like a diesel..no idea how they work in practice) Quote Link to comment Share on other sites More sharing options...
johnnyfive Posted December 22, 2015 Share Posted December 22, 2015 Aux electric vac pumps are pretty common on a few modern cars, dunno how much volume you'd need but two should be heaps. Have you tried wreckers? Late model VE V6 commodores and VF V6s should have them fitted RHF of engine. Some of the smaller/turbo new Holden range has them too. Quote Link to comment Share on other sites More sharing options...
KKtrips Posted December 22, 2015 Share Posted December 22, 2015 If it is for Brake boosting, is a non boosted brake operation an option?Change the master cylinder bore size (smaller bore required) and adjust the clevis point in the pedal to allow more lineal push of the pushrod and you can delete the requirement for a vacuum servo.May also require more bracing around the master cylinder to counter the increased force imposed on the firewall. Quote Link to comment Share on other sites More sharing options...
Dangle6060 Posted December 22, 2015 Share Posted December 22, 2015 Yeah the vacuum pump is for the brake booster, I will look into the Commodore option seems legit and they'll be reliable too I know Tom Short with the Yellow Electric Datsun uses a non-boosted setup from an older skyline which seems to do the trick, the other problem is will it be enough for the upgraded to Wildwood big brakes up front? I'll look into Diesel alternator can pump also and if it is a small job then I may go that route also! Quote Link to comment Share on other sites More sharing options...
KKtrips Posted December 22, 2015 Share Posted December 22, 2015 Its all about getting the right bore size to pedal ratio. You can run non boosted brakes on anything. A lot of big heavy race cars have no booster because cam overlap minimizes the vacuum signal available. Quote Link to comment Share on other sites More sharing options...
Ned Posted December 22, 2015 Share Posted December 22, 2015 Have you ordered batteries yet? I spent a number of years developing a variety of EV battery chargers in a previous job and have gotten to know a person or 2 that might be able to get a good deal on batteries. No promises, but happy to send out a couple emails and see what I can do if you don't already have some lined up. Those dual warp 9s are going to be crazy awesome in a KE70! Love it! Quote Link to comment Share on other sites More sharing options...
Dangle6060 Posted December 22, 2015 Share Posted December 22, 2015 Ned, Got the lithium batteries yesterday. You worked o chargers.. wouldn't by any chance know where to get a battery discharging unit/battery work station, like a Cellpro Powerlab or equivalent? 1 Quote Link to comment Share on other sites More sharing options...
Ned Posted December 22, 2015 Share Posted December 22, 2015 Theres plenty of RC hobby chargers/dischargers out there but none that i know of that will do 1000W charge and discharge. The little cheap hobby ones will normally do 50W charge and 5W discharge which is no good for big big cells (unless you wanna wait a million years to cycle batteries) What we did was out packs were 144V and we would divide them into 3 packs of 48V and to discharge we would connect them in parallel and use a big 3 phase grid tied inverter to suck all the power out and pump it back into the mains. Then disconnect and reconnect the batteries back in series for 144V and charge them again. Quote Link to comment Share on other sites More sharing options...
Dangle6060 Posted December 22, 2015 Share Posted December 22, 2015 How cheap and easy is it to do that? Need to do each cell individually anyway for bottom balancing! Quote Link to comment Share on other sites More sharing options...
Beaubot Posted April 12, 2018 Share Posted April 12, 2018 What happened to this? Quote Link to comment Share on other sites More sharing options...
Nominal Posted April 13, 2018 Share Posted April 13, 2018 1 hour ago, Beaubot said: What happened to this? I dunno, but @Dangle6060 hasn't logged in here in almost 2 years. Quote Link to comment Share on other sites More sharing options...
johnny.race Posted April 13, 2018 Share Posted April 13, 2018 Did anyone ever see the car though ... at a show or somewhere? 1 Quote Link to comment Share on other sites More sharing options...
Mof Posted April 13, 2018 Share Posted April 13, 2018 Kidnapped by the oil companies. Conspiracy m8 6 1 Quote Link to comment Share on other sites More sharing options...
Willdat? Posted April 13, 2018 Share Posted April 13, 2018 5 hours ago, johnny.race said: Did anyone ever see the car though ... at a show or somewhere? Yup, saw it more or less complete minus batteries at Evolocity 2015 (ie about a month before the last post here.) to be honest they were all young guys 17/18 yo and life has probably got in the way. 2 1 Quote Link to comment Share on other sites More sharing options...
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