mrcheeze36 Posted December 3, 2004 Share Posted December 3, 2004 Hi All. I was just wondering what the flow rates were for the L28 turbo oil pumps (both manual and auto). Do they flow more than the Nissan Motorsport High Volume oil pump (9.6 GPM at 3000rpm)? Would the High Volume oil pump be overkill for my setup? My friend and I are building a turbo stoker L28 and are thinking of running a GT35R. Thanks in advance for the help! Quote Link to comment Share on other sites More sharing options...
Clifton Posted December 3, 2004 Share Posted December 3, 2004 The GT35R will need a restrictor to keep the oil pressure down. I can't remember the max psi but it will use a little less oil than a bushing bearing turbo. Unless you plan on spinning it over 7K for long periods of time I think the factory turbo pump is fine. I haven't had any problems. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted December 3, 2004 Share Posted December 3, 2004 The turbo pump is the high volume pump. Add the high pressure springs and you've got the Comp pump. Just in case you were going to buy a new one, I think AZC has about the best deal. That's where I got mine. http://www.arizonazcar.com/oilpump.html Quote Link to comment Share on other sites More sharing options...
GrayZee Posted December 4, 2004 Share Posted December 4, 2004 On a side note, does anyone know if there is a big difference between the oil pump on a auto car vs the manual? I know the auto's came with oil coolers, so I would assume the auto was higher volume? Quote Link to comment Share on other sites More sharing options...
240Z Turbo Posted December 4, 2004 Share Posted December 4, 2004 Three pumps in ascending flow order. Non turbo pump Turbo manual pump Turbo automatic pump The comp pump is just the turbo pump with a spring. Just run the stock turbo pump and that will be sufficient for your application. Quote Link to comment Share on other sites More sharing options...
Tony D Posted December 5, 2004 Share Posted December 5, 2004 "Spring"... You can add an M6 Flat Washer under the stock Turbo spring (actually several) and get the same effect as the Comp Springset. I believe they sourced the springset for the "comp" pump from the Diesel L engine... But M6 Flat Washers have a nice effect on the oil pressure. You can actually tailor the pressure where you want starting low, and working up to it one Washer at a time... You only really need 10 psi per 1000 rpm... But sometimes conditions warrant more. Quote Link to comment Share on other sites More sharing options...
mrcheeze36 Posted December 5, 2004 Author Share Posted December 5, 2004 Thank you all for your help! Quote Link to comment Share on other sites More sharing options...
240Z Turbo Posted December 5, 2004 Share Posted December 5, 2004 "Spring"...You can add an M6 Flat Washer under the stock Turbo spring (actually several) and get the same effect as the Comp Springset. I believe they sourced the springset for the "comp" pump from the Diesel L engine... But M6 Flat Washers have a nice effect on the oil pressure. You can actually tailor the pressure where you want starting low' date=' and working up to it one Washer at a time... You only really need 10 psi per 1000 rpm... But sometimes conditions warrant more.[/quote'] It is a dual spring setup. I have it in my toolbox. Quote Link to comment Share on other sites More sharing options...
Drax240z Posted December 5, 2004 Share Posted December 5, 2004 I was under the impression that the turbo manual pump was higher pressure than the NA pump, and the turbo automatic pump was higher volume & higher pressure than the NA pump. Can anyone confirm that? Quote Link to comment Share on other sites More sharing options...
Tony D Posted December 5, 2004 Share Posted December 5, 2004 yes, that is the line from Nissan. When dealing with the Turbo Automatics in US spec Cars they added volume and flow to compensate for the oil cooler system present on the Automatics. Interestingly enough, the Turbo/Auto pumps are the most inexpensive of the lot, too! Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted December 10, 2004 Share Posted December 10, 2004 Hmm, I did not know that. Only the 280ZX Turbo Automatics had engine oil coolers and a pump to match? Interesting. When I did my swap, I kept the oil cooler even though I put it into my 5 speed Z. Should I have left the cooler off? Quote Link to comment Share on other sites More sharing options...
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