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04-23-2012, 12:07 AM
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CC Member
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Join Date: Mar 1999
Location: Redding,
CA
Cobra Make, Engine: Cobra Maker
Posts: 722
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Not Ranked
the oil thermostat could be the start of your problems.
__________________
Bill Emerson
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04-23-2012, 06:42 AM
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Senior Club Cobra Member
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Join Date: Mar 2000
Location: St. Augustine,
FL
Cobra Make, Engine: E-M / Power Performance / 521 stroker / Holley HP EFI
Posts: 1,946
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Not Ranked
Pete,
Agree with Bill -> lose the thermostat.
Also agree about the Accusump. I wouldn't do a track day without it!
Tom
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Wells's law of engine size: If it matters what gear you're in, the engine's too small!
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04-23-2012, 01:04 PM
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CC Member
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Join Date: Mar 2003
Location: PVE,
CA
Cobra Make, Engine: ERA 289 FIA #2027, 65' 289" PS wheels
Posts: 345
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Not Ranked
now ya got me thinking...
Guys,
Well, you got me thinking about the pro/cons of adding any complications to the oil system, point well taken.
Certainly do want to add the ACCU-SUMP, and look into replacing the AVIAD oil dam/scrapper I removed to allow the pan to fit over the lower main support. Not sure how to do that.
Thermostat was added 3 years/~2500 miles ago. (16,000 on engine) Nothing has changed in terms of pressure problems in Willow's turn 2.
Since the first time the car was on the track in 2003? I have had the intermittent oil pressure problem in LONG SWEEPING turns. Have tried to avoid overfilling the pan but it seemed a fine line between too little and what I "imagined would be too much" and create aeration problems.
Mainly, my concerns have been with oil FLOW, not pressure.
Thermostat is the CANTON, not the MOCAL. Very large volume inside, few angles, compared to the MOCAL.
On my install hoses/fittings in/out are #10. Installed it with as many straight in, or 30-60 degree hose ends as I could. (see my gallery)
Many of the installations I see are about as BAD as they could be in terms hydraulic resistance. Acute angles, 90's, 120's, etc or complete reversal type fittings are what I tried to avoid. My hose runs are not much longer than when only the oil cooler was in use.
IMHO, if temps are too low, a GOOD thermostat installation that doesn't impede oil flow and gets oil into a better operating range is more of an asset than liability.
Thanks, Pete
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ERA 289 #2027
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04-26-2012, 12:06 PM
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Senior Club Cobra Member
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Join Date: Jan 1999
Location: MARKSVILLE,LA.,,
Posts: 3,235
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Not Ranked
Quote:
Originally Posted by HealeyRick
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Same culprit to a point, the race track,but this guy is using a stock Mustang pan, good for riding around on the street.........I agree with the other posters,if your doing auto cross or road course racing, you better have a good baffled pan, no matter what track you run on.......
anything less, your asking for trouble.........
David
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DAVID GAGNARD
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04-26-2012, 01:37 PM
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CC Member
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Join Date: Mar 2003
Location: PVE,
CA
Cobra Make, Engine: ERA 289 FIA #2027, 65' 289" PS wheels
Posts: 345
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Not Ranked
David,
I can't find a model number on the pan, but I did order it myself 8+ years ago.
It was supposed to be the Cobra pan, 8 qts.
The sump section is 15.25 long, 11.25 wide, 7.5 deep.
Send me a regular e-mail address I can send you some photo that are bigger than they allow here.
Pete
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ERA 289 #2027
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04-26-2012, 01:51 PM
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Senior Club Cobra Member
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Join Date: Jan 1999
Location: MARKSVILLE,LA.,,
Posts: 3,235
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Not Ranked
email sent.........
david
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DAVID GAGNARD
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04-23-2012, 02:12 PM
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Senior Club Cobra Member
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Join Date: Jan 1999
Location: MARKSVILLE,LA.,,
Posts: 3,235
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Not Ranked
Quote:
Originally Posted by Tom Wells
Pete,
Agree with Bill -> lose the thermostat.
Also agree about the Accusump. I wouldn't do a track day without it!
Tom
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FWIW: I'd pull the engine and do a complete tear down and see what's damaged and what's salvagable.....
I'd also lose the oil thermostat,add the accusump...depending on the type of oil cooler,you may not be able to clean it out.....if it is the "stacked plate type" kinda like a trans oil cooler, I'd say throw it away and get another,if it the round tube type,you should be able to flush it out and re-use it..flush all your oil lines throughly and they should be good to go.....I'm betting your crank will be good with just polishing the journals.
If it were mine, I'd wash the roller lifters in a parts washer and then inspect them, chances are most all the debris was caught in the oil filter.
I use 15/50 Mobil 1 synthetic oil in my race car,rev limiter is 7000rpms, and I've run oil temps as high as 270 degrees on extreme days, normal is in the 220 to 230 range......on cool/cold days, I block off part of the oil cooler with clear packing tape or duct tape to keep the oil temp in the 200 to 220 range......
I'd defintely change the oil pump, I like the Melling HP Series in standard volume/standard pressure, what's in my race and street motor.....
Looks like your oil filter did it's job,probably should not have much other engine damage.........
Good luck with it.........
David
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DAVID GAGNARD
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