Re: Oil Warning light
[Re: JandJ_Racing]
#386709
07/26/09 11:57 AM
07/26/09 11:57 AM
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Joined: Oct 2004
Posts: 5,618
long island NY
Ari440
master
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master
Joined: Oct 2004
Posts: 5,618
long island NY
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im using a chevy preasure swith for the low oil warning ligth
dont have a part number but there are commen
got it from a napa store ,just ask for a idiot ligth its 1/8 npt
1.39 9.85 - 137 mph
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Re: Oil Warning light
[Re: Cab_Burge]
#386714
07/26/09 01:56 PM
07/26/09 01:56 PM
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Joined: Jan 2003
Posts: 981
Way North Illinois
JandJ_Racing
OP
super stock
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OP
super stock
Joined: Jan 2003
Posts: 981
Way North Illinois
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Quote:
Quote:
every thing they come up with under that is very low psi. I have called three napa stores 
My 518 stroker idles at or under 20 PSI hot with regular non synthetic 5W20 Valvoline. Same bearings for over three years of street and strip driving, shifting at or above 7000 every shift at the track  I do run the bearing clearnances loose, .0035+ on both rods and mains
My bearing clearances are the same but I run 20 50 brad penn. I have not seen the gauge drop below 20 but if it did I can look at the gauge. I ordered the 18 psi autometer sender, I all ready have the warning light just never hooked it up 
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Re: Oil Warning light
[Re: JandJ_Racing]
#386715
07/26/09 02:07 PM
07/26/09 02:07 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I dont know why you would hook it up to a light, hook it to the ignition so if you go below X pressure it kills the ignition 
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Re: Oil Warning light
[Re: JandJ_Racing]
#386718
07/26/09 06:20 PM
07/26/09 06:20 PM
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Joined: Aug 2003
Posts: 43,223
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,223
Bend,OR USA
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Quote:
Quote:
Quote:
every thing they come up with under that is very low psi. I have called three napa stores
My 518 stroker idles at or under 20 PSI hot with regular non synthetic 5W20 Valvoline. Same bearings for over three years of street and strip driving, shifting at or above 7000 every shift at the track I do run the bearing clearnances loose, .0035+ on both rods and mains
My bearing clearances are the same but I run 20 50 brad penn. I have not seen the gauge drop below 20 but if it did I can look at the gauge. I ordered the 18 psi autometer sender, I all ready have the warning light just never hooked it up
I have a set of cyberdyne digital gauges that are programmable on the high and low temps and pressures, I have the low pressure set at 20 lbs and it starts blinking in gear when the oil temps reach 180F or above at or below 900RPM. If I touch the throttle the oil pressures rises like the tach, it has 30 lbs at 1200 rpm and 63 lbs at 6500 RPM I have thought about using a Hobbs switch to kill the engine but I have never got around to it, probally should now that I mentioned it   
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Oil Warning light
[Re: dvw]
#386721
07/28/09 09:54 AM
07/28/09 09:54 AM
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Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines
master
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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I agree with DVW. If you are using a light preset to 20#, and you have a fast car, when you notice the lite coming on signaling you only have 20# of oil pressure, many times that is going to be too late. You want it to signal you at a higher pressure so that you will notice it, look at the pressure guage BEFORE any damage can occur. The Moroso units come with an adjustable switch that will go up to 50#. I'd suggest a 40-50PSI setting, and yes, the lite will be on at idle. Again, you arent most likely going to blow your engine up at idle. Most racers are concentrating on driving, and by the time they get thru the traps, going thru shutdown is when they start looking at guages etc. This is most likely too late when there is a problem. at least if it comes on at 40 or 50#, you have time to save it and find the problem.
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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