hodge Posted May 28, 2009 Share Posted May 28, 2009 I remember reading somewhere when fitting an oil cooler larger diamiter pipes can drumatically reduce oil pressure. Has anyone had experience of this and how much of a drop did you notice. Cheers in advance John Quote Link to comment Share on other sites More sharing options...
Digsy Posted May 28, 2009 Share Posted May 28, 2009 Larger diameter pipe will reduce the pressure drop across the pipe - hence making more oil pressure available to the engine. Bigger pipes the better I would think - especially for long runs. Quote Link to comment Share on other sites More sharing options...
hodge Posted May 28, 2009 Author Share Posted May 28, 2009 I was at motorscope in northallaton the other day and the guy was telling me they made some -10an pipes up for michel lanes supra and this reduced the oil pressure significantly. Quote Link to comment Share on other sites More sharing options...
Digsy Posted May 28, 2009 Share Posted May 28, 2009 Maybe if you are measuring the pressure before the pipes, but its the pressure after the pipes that you will be interested in. Also the inside diameter of the end fittings is usually a good deal smaller than the inside diameter of the pipe. What are you thinking of changing from / to size wise? Quote Link to comment Share on other sites More sharing options...
hodge Posted May 29, 2009 Author Share Posted May 29, 2009 (edited) was wanting to fit a 25 row oil cooler with -10an fittings. No relocation kit just the cooler. So just to clarify if i fit a sandwich plate with the oil temp and pressure sensors in it aswell as the -10 pipes to the cooler i WILL get a true pressure n temp reading. Cheers for the help by the way. Edited May 29, 2009 by hodge (see edit history) Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 29, 2009 Share Posted May 29, 2009 I fitted -10 pipes with my 19 row cooler, and dint notice any change in pressure. Quote Link to comment Share on other sites More sharing options...
Digsy Posted May 29, 2009 Share Posted May 29, 2009 Right, well going from the stock oil cooler which doesn't need any plumbing to a remote oil cooler which requires pipes probably will result in a slight pressure drop by the time the oil gets back to the engine, but the larger you can make the pipes and end fittings the smaller this will be. I thought you already had a remote oil cooler and just wanted to make the pipes bigger. Quote Link to comment Share on other sites More sharing options...
hodge Posted May 29, 2009 Author Share Posted May 29, 2009 Ricky where do you have your oil temp n pressure sensors located matey and what oil pressure u seeing on spirited driving. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted May 29, 2009 Share Posted May 29, 2009 Ricky where do you have your oil temp n pressure sensors located matey and what oil pressure u seeing on spirited driving. Temp sensor is in the sump, and the pressure sensor is in a Lexus bolt, readings are about 25-32 hot idle and high RPM about 100-110PSI. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 29, 2009 Share Posted May 29, 2009 -12 would be my choice, with a cooler designed for -12 fittings, and a properly ported thermostatic sandwich plate. Quote Link to comment Share on other sites More sharing options...
Wez Posted May 29, 2009 Share Posted May 29, 2009 pressure sensor is in a Lexus bolt Where abouts is that fitted and part numbers etc, I am looking to hook up oil pressure to the ECU. Just checked the Solaris software and oil pressure outside the configured parameters can invoke limp or stop the engine, oil temp outside the parameters can invoke limp mode Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 29, 2009 Share Posted May 29, 2009 It holds the oil filter and cooler adaptor elbow to the block. You can drill and tap the stock one to suit your sender thread size Quote Link to comment Share on other sites More sharing options...
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