Crankcase Pressure Alarm
I was talking with one of the Porsche Cup Car mechanics and he told me of a new feature in the later year cup cars. They now have a pressure sensor in the crankcase that is tied to the master alarm. Once a baseline is determined they set the warning light to go off once that number is exceeded.
Seems like a great early warning to impending doom. Those who have AIM dash or Race Logic could do the same. |
If you have excess crankcase pressure, the doom is no longer impending.
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It's gotta be better than waiting for a rod through the block. Some drivers don't stop when they feel power is down. They charge on till things go boom.
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Just use a boost gauge on a nipple and read it. You will know when the engine is dying.
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Originally Posted by k24madness
(Post 993567)
It's gotta be better than waiting for a rod through the block. Some drivers don't stop when they feel power is down. They charge on till things go boom.
It's a great sensor to have for on-the-fly diagnostics, which is an important factor in a car that sees time at 12+ hour races (Le Mans, Daytona, Sebring, Thunderhill, etc). For a club racer or an HPDE car, it's nothing a post-event compression/leakdown test won't clue you in on. |
Porsche people are funny. I am reminded of the aftermarket kit you can buy for the 996 engine which is essentially a sensor that alerts you that your IMS bearing has failed and you need a new engine.
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Kinda surprised they don't have an anal pressure alarm
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This does bring up the question of unusual alarms. For instance is anyone running a coolant pressure alarm/gauge? It would have saved at least 1 race motor on a team I was crewing with. A screwdriver had nicked a heater core hose, and slowly let out all the coolant. Melted the head and block.
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i do,
i know i'm not in some 12h race, but i'm running some prosport premium with an audio warning in case you reach the pre-set limit. it allready helped a lot when i bursted a coolant hose going to the turbo. it was only a pin sizez hole, but my gauges went up well before my cluster. |
double post sorry
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Originally Posted by Joe Perez
(Post 993697)
Porsche people are funny. I am reminded of the aftermarket kit you can buy for the 996 engine which is essentially a sensor that alerts you that your IMS bearing has failed and you need a new engine.
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Originally Posted by tpwalsh
(Post 993775)
This does bring up the question of unusual alarms. For instance is anyone running a coolant pressure alarm/gauge? It would have saved at least 1 race motor on a team I was crewing with. A screwdriver had nicked a heater core hose, and slowly let out all the coolant. Melted the head and block.
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Originally Posted by JasonC SBB
(Post 993875)
I think the idea is the alarm tells you it needs an expensive repair and saves you an even more expensive entire engine replacement.
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Originally Posted by Joe Perez
(Post 993925)
In theory, yes. Assuming you notice the little LED flashing at you, and you immediately stop and call a tow truck, there is a chance that you may only require a $2,000 repair instead of a $20,000 repair.
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Originally Posted by tpwalsh
(Post 993775)
This does bring up the question of unusual alarms. For instance is anyone running a coolant pressure alarm/gauge? It would have saved at least 1 race motor on a team I was crewing with. A screwdriver had nicked a heater core hose, and slowly let out all the coolant. Melted the head and block.
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