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2013-14 Shelby GT500
Where to check oil pressure? Low oil pressure light--feeling sick to my stomach
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<blockquote data-quote="biminiLX" data-source="post: 14974614" data-attributes="member: 7795"><p>Good and bad in life I guess.</p><p>Picked the car up with fresh 4.10s and new 8.8 bracing, was so happy to finally have silent rear gears and actually drive the car after 5 weeks.</p><p>I was planning on racing at NMCA Norwalk in 2 weeks, so my friend who is very knowledgeable and a former NMRA racer suggested we do some data logging.</p><p>Went to our normal test roads, and made a full pull in 3rd from 3000rpm to the top of 4th.</p><p>On the second pull, as soon as I shifted into 4th and started scanning the gauges I see the oil light come on.</p><p>Car making no funny noises, no smoke, just light.</p><p>Limped it into the closest gas station and shut down.</p><p>No leaks, no smoke, running fine except for increased valvetrain noise.</p><p></p><p>We looked at the data log and everything looks fine--high 10s a/f, -0.25 KR, etc.</p><p>Only problem is it says max RPM 7300!</p><p>I shift off the stock tach at what should be 65-6600. The stock tach sucks as far as numbering, but I've never let it go to 7 from my eye.</p><p>1) Could the stock tach be that far off? If it is, I've been routinely shifting the car the same way, NOTHING was different from multiple test passes on the same stretch of county road or at the track shifting at the same point on the tach.</p><p></p><p>2) Where can I hook up a mechanical pil pressure gauge? Is there a way to read actual oil pressure other than the factory 'low/normal/high'?</p><p></p><p>The car still has the oil light on, the read out says 'low' instead of normal and I have increased upper end noise.</p><p>No check engine lights, no smoke, no leaks, no bottom end noise.</p><p></p><p>I send the datalog if someone wants to look over it?</p><p>Kinda rambling now as my head is spinning.</p><p></p><p>Oil is fresh 10w30 Amsoil Racing Dominator (has 170 stat and only street/strip use, previous oil analysis from this oil was perfect).</p><p>Car was warmed up, fresh 93 octane Shell V-power with Torco, no KR on datalog.</p><p></p><p>Oil pump gears? valvetrain issue? </p><p>I'll try and have more info tomorrow, would love to put a mechanical gauge on it ASAP.</p><p>Any help appreciated <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown :(" loading="lazy" data-shortname=":(" /></p><p>-J</p></blockquote><p></p>
[QUOTE="biminiLX, post: 14974614, member: 7795"] Good and bad in life I guess. Picked the car up with fresh 4.10s and new 8.8 bracing, was so happy to finally have silent rear gears and actually drive the car after 5 weeks. I was planning on racing at NMCA Norwalk in 2 weeks, so my friend who is very knowledgeable and a former NMRA racer suggested we do some data logging. Went to our normal test roads, and made a full pull in 3rd from 3000rpm to the top of 4th. On the second pull, as soon as I shifted into 4th and started scanning the gauges I see the oil light come on. Car making no funny noises, no smoke, just light. Limped it into the closest gas station and shut down. No leaks, no smoke, running fine except for increased valvetrain noise. We looked at the data log and everything looks fine--high 10s a/f, -0.25 KR, etc. Only problem is it says max RPM 7300! I shift off the stock tach at what should be 65-6600. The stock tach sucks as far as numbering, but I've never let it go to 7 from my eye. 1) Could the stock tach be that far off? If it is, I've been routinely shifting the car the same way, NOTHING was different from multiple test passes on the same stretch of county road or at the track shifting at the same point on the tach. 2) Where can I hook up a mechanical pil pressure gauge? Is there a way to read actual oil pressure other than the factory 'low/normal/high'? The car still has the oil light on, the read out says 'low' instead of normal and I have increased upper end noise. No check engine lights, no smoke, no leaks, no bottom end noise. I send the datalog if someone wants to look over it? Kinda rambling now as my head is spinning. Oil is fresh 10w30 Amsoil Racing Dominator (has 170 stat and only street/strip use, previous oil analysis from this oil was perfect). Car was warmed up, fresh 93 octane Shell V-power with Torco, no KR on datalog. Oil pump gears? valvetrain issue? I'll try and have more info tomorrow, would love to put a mechanical gauge on it ASAP. Any help appreciated :( -J [/QUOTE]
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Where to check oil pressure? Low oil pressure light--feeling sick to my stomach
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