ThePog 5,781 Report post Posted November 3, 2019 I will need to run a scavenger pump on the truck project, has anyone used one or got any recommendations for a suitable unit? I imagine it will be worth running a wee collection tank as well, whaddayareckon? Quote Share this post Link to post Share on other sites
kws 3,449 Report post Posted November 3, 2019 Iirc skid factory on YouTube had a good option on their Bedford with a barra. 3 Quote Share this post Link to post Share on other sites
ThePog 5,781 Report post Posted November 3, 2019 Yes I recall that they used one, I couldn't remember which project tho. So that helps a lot, I will have a scroll through tonight... Quote Share this post Link to post Share on other sites
sheepers 18,336 Report post Posted November 3, 2019 The one they use is from Al's gt86 turbo kit. It's a good little unit 1 Quote Share this post Link to post Share on other sites
ThePog 5,781 Report post Posted November 3, 2019 Yes I found the episode, will do some more investigation. I would probably prefer a mechanical pump, my investigations have found that wrx's have one that I could probably adapt.... 1 Quote Share this post Link to post Share on other sites
cletus 32,566 Report post Posted November 3, 2019 I started looking at pumps and stuff when I was thinking of doing a rear mount turbo. I did a cert for a guy who did low mount turbos on a commodore and he had to run the pump on a timer otherwise if the pump stopped when the ignition was turned off, there was enough oil hanging around to leak past seals etc, and it would get oil all through the piping . Apparently the fix is to run a little sump (he couldn't due to everything being so low) that the scavenge pump can suck out of, so that any remaining oil can drain into the sump. I was thinking of using a small bottom sump section either bolted to another one, or make a flat lid on one As for a scavenge pump, there's cheap chinese ones but they dont handle the heat and constant running very well and the good ones were kinda pricey. I think www.theturboforums.com had some info on pumps Like the steel part in this pic. A trans pan might also work? 1 1 Quote Share this post Link to post Share on other sites
ThePog 5,781 Report post Posted November 3, 2019 The setup on the skid factory Bedford was a little diecast box, probably 120mm x 75mm x 50mm. It was vented to the breather system to prevent air locks. I guess all it needs to hold is the oil from the turbo and some of the oil feed line. This seems like plenty, so I am not sure you would need a pan as big as a transmission one unless you were really stuck for space. I can make a decent sized box anyway, there is plenty of room underneath. I have the position where the ac compressor was, I can drive something off that if needed. I have been toying with the idea of an engine oil pump with a pulley mounted to the front, but I guess there might be lubrication issues if it wasn't flowing the full amount.. I found this which might do though; https://www.burnsco.co.nz/shop/12v-electrical/plumbing/seaflo-oil/diesel-gear-pump?gclid=Cj0KCQjw9fntBRCGARIsAGjFq5HM_g2-082J4KoI7IstMdhmfTVWJlbmXPGRgAxpFSYysNXbf5WCBfUaAs_gEALw_wcB Or this which is much the same; https://www.trademe.co.nz/2378356854 I also messaged skid factory to ask about theirs... 1 Quote Share this post Link to post Share on other sites
Ghostchips 5,064 Report post Posted November 3, 2019 I know someone used a power steering pump /ling 1 Quote Share this post Link to post Share on other sites
ThePog 5,781 Report post Posted November 3, 2019 27 minutes ago, Ghostchips said: I know someone used a power steering pump /ling Na man that's good, they pump oil, they have a v belt on the front, they work at normal engine revs... /zeroling 2 Quote Share this post Link to post Share on other sites
ajg193 7,426 Report post Posted November 3, 2019 How fast do turbos cook if one of those pumps fails? Would it be worth wiring a pressure switch into your ignition? Quote Share this post Link to post Share on other sites
Yowzer 29,209 Report post Posted November 3, 2019 It's a scavenging pump, not a supply pump. The turbo is still fed by the engine oil pressure. If the pump fails you'll just have oil falling out the exhaust. 1 Quote Share this post Link to post Share on other sites
ThePog 5,781 Report post Posted November 3, 2019 1 minute ago, ajg193 said: How fast do turbos cook if one of those pumps fails? Would it be worth wiring a pressure switch into your ignition? This is why I'm heading towards a mechanical pump, I reckon this would be pretty low maintenance. Quote Share this post Link to post Share on other sites
Testament 8,267 Report post Posted November 4, 2019 On 04/11/2019 at 09:06, Ghostchips said: I know someone used a power steering pump /ling 23 hours ago, ThePog said: Na man that's good, they pump oil, they have a v belt on the front, they work at normal engine revs... /zeroling Theres a few cars with electric power steering pumps that might work? if you have a small alloy sump it would dissipate enough heat before the pump I would think. A class mercs are one, probably others too. maybe some toyotas? MR2? MR-S? 1 Quote Share this post Link to post Share on other sites
cletus 32,566 Report post Posted November 4, 2019 Some good info here https://www.rbracing-rsr.com/oilsystems.htm Quote Share this post Link to post Share on other sites
ThePog 5,781 Report post Posted November 4, 2019 31 minutes ago, cletus said: Some good info here https://www.rbracing-rsr.com/oilsystems.htm Yea thats good stuff. I had a wee chat with Al from the Skidfactory, he was pretty helpful. He reckoned a power steering pump wouldnt like the low flows, which is what i was concerned about as well. We also discussed using the WRX/Forestor scavenge pumps, which is where I am tending towards now. They are built for it and shouldnt be too hard to adapt to a V belt drive. I will see what sort of $$ they are going for. 2 Quote Share this post Link to post Share on other sites
cletus 32,566 Report post Posted November 4, 2019 Is that from the Subarus that have the turbo mounted down under the engine? Quote Share this post Link to post Share on other sites
ThePog 5,781 Report post Posted November 4, 2019 1 hour ago, cletus said: Is that from the Subarus that have the turbo mounted down under the engine? yea, not looking promising though. I might just get that burnsco pump and go from there Quote Share this post Link to post Share on other sites
mjrstar 2,663 Report post Posted November 4, 2019 Roof mount turbo, end of story. 3 Quote Share this post Link to post Share on other sites
vk327 220 Report post Posted November 5, 2019 VDO do a nice electric scavenge pump, will find the details and post it up Quote Share this post Link to post Share on other sites
vk327 220 Report post Posted November 5, 2019 VDO pump specs VDO Universal Engine and Transmission, Differential Oil PumpThis small 12 volt pump is designed for pumping gearbox and/or differential oil. It has also been used for pumping oil to motorcycles fitted with Turbos. Can be used as an oil cooler circulation pump. Can also be used as a Turbo scavenge pump for low mounted Turbos to better drain oil and avoid oil blowing through seals. Features & Sizes - Voltage 12V ONLY - 160 Litres Per Hour - 4 Bar Pressure (58 PSI) - 100 to 150 Degrees Celcius working Temperature - 16.0mm Diameter Inlet - 7.8mm Diameter Outlet (Straight) - 9.0mm Lip - 127.0mm Overall Length 1 Quote Share this post Link to post Share on other sites
