Twin Turbo LSX Datsun 280Z
#622
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A friend just sent this picture to me and pointed out how much squat the rear and has. This picture was taken somewhere around 150MPH. The struts are set on 3.5 out of 5 on the stiffness. I'm not sure why I didn't think to tighten them up. I guess this explains why the 28's where rubbing. Anyone think the 5 setting will make a noticeable difference over 3.5?
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Last edited by oscs; 04-01-2015 at 06:22 PM.
#623
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A friend just sent this picture to me and pointed out how much squat the rear and has. This picture was taken somewhere around 150MPH. The struts are set on 3.5 out of 5 on the stiffness.
I'm not sure why I didn't think to tighten them up. I guess this explains why the 28's where rubbing.
Anyone think the 5 setting will make a noticeable difference over 3.5?
I'm not sure why I didn't think to tighten them up. I guess this explains why the 28's where rubbing.
Anyone think the 5 setting will make a noticeable difference over 3.5?
#632
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Seeing the high oil temps got my gears going so I cut open the oil filter to see what was inside and I find this. Disregarding the black material, is this an excessive amount of bearing material? The motor probably has 2k on it and this is the second oil filter since the build. The first one came off at 500 miles and I never looked inside it.
Hot idle is around 35-40 which is down from 50. Everything seems normal except a slight drop in pressure.
Now I just got done making some dump pipes and they are not wrapped like my exhuast system. The oil distribution block sits pretty damn close, so heat soak could def be a possibility, I'm going to wrap them later today to see if that changes anything with the oil temps.
Hot idle is around 35-40 which is down from 50. Everything seems normal except a slight drop in pressure.
Now I just got done making some dump pipes and they are not wrapped like my exhuast system. The oil distribution block sits pretty damn close, so heat soak could def be a possibility, I'm going to wrap them later today to see if that changes anything with the oil temps.
#633
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did you strain out the oil as well? That looks like decent amount of material in there. Nothing MAJOR but deff more then I would expect after 2 oil changes and 2k miles. I usually filter my oil through a coffee filter to see as well. Some of those pieces look kind of big if there bearing material.
#635
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did you strain out the oil as well? That looks like decent amount of material in there. Nothing MAJOR but deff more then I would expect after 2 oil changes and 2k miles. I usually filter my oil through a coffee filter to see as well. Some of those pieces look kind of big if there bearing material.
#636
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Sorry for not reading the entire thread. Was the shortblock new or did someone go through it or was it just a bolt in and go? I know when I pulled mine apart, the rod bearings looked good but were a little loose in the rods. Nothing spun, but none the less. Seeing that the engine was out of a truck, I'd guess heavy loads and maybe a little detonation along the way. Only reason I'm sayin this is that even with a stocker, you can bang the bearings out of round, let alone if you're throwing boost at it. Check it before it damages the crank. It could still be salvageable.
Last edited by 3 window; 04-04-2015 at 12:42 PM.
#637
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Sorry for not reading the entire thread. Was the shortblock new or did someone go through it or was it just a bolt in and go? I know when I pulled mine apart, the rod bearings looked good but were a little loose in the rods. Nothing spun, but none the less. Seeing that the engine was out of a truck, I'd guess heavy loads and maybe a little detonation along the way. Only reason I'm sayin this is that even with a stocker, you can bang the bearings out of round, let alone if you're throwing boost at it. Check it before it damages the crank. It could still be salvageable.
#638
9 Second Club
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The video definitely looks like a lot of debris, so it's hateful to have to take things apart to investigate, but it probably is worthwhile
If you have oil pressure info fed to the ecu, then it would make sense to apply some safety strategies around it. Whether for actual engine shutdown or purely to give you a warning to do something about it.
If the sensor is in a hot location, remote mount it so it is not. The sensors generally live longer mounted remotely anyway
If you have oil pressure info fed to the ecu, then it would make sense to apply some safety strategies around it. Whether for actual engine shutdown or purely to give you a warning to do something about it.
If the sensor is in a hot location, remote mount it so it is not. The sensors generally live longer mounted remotely anyway
#639
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Hot idle pressure is about 40. Crushing pressure is 65.. Since wrapping the dump my oil temps are back down to 215-220 after some hard pulls @7lbs. Everything seems fine but I'm still going to pop the caps off And check for wear while the trans is out. The more I think about it the more I don't know what my hot idle pressure was before. I went back through some old threads and I was seeing 30-40 at some point. Not to mention that was when it was colder outside..
I think for now I will keep driving the car and closely monitor the oil pressure and temps. When it comes time to swap transmissions I will cut the filter open and drop the pan for further inspection.
Also I have since setup the low oil pressure safety on my ECU to prevent further issues.
I think for now I will keep driving the car and closely monitor the oil pressure and temps. When it comes time to swap transmissions I will cut the filter open and drop the pan for further inspection.
Also I have since setup the low oil pressure safety on my ECU to prevent further issues.
#640
9 Second Club
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I would find it hard to believe your dump pipes are the cause of actual hot oil.
If they are in close proximity to the sensor, perhaps the radiant heat is causing some false readings.
Where is the oil temp sensor fitted ?
At low load, cruise etc etc oil temp should pretty much mirror coolant temp. Only when you start loading things up should oil temp rise above coolant temp.
That can be used as a guide to see if either sensor is giving sensible readings.
And where is the oil pressure sensor fitted ? again it's always best to remote mount these as it isolates them from engine vibration. Plus if it moves it away from a hot location, that's always a good thing too.
If they are in close proximity to the sensor, perhaps the radiant heat is causing some false readings.
Where is the oil temp sensor fitted ?
At low load, cruise etc etc oil temp should pretty much mirror coolant temp. Only when you start loading things up should oil temp rise above coolant temp.
That can be used as a guide to see if either sensor is giving sensible readings.
And where is the oil pressure sensor fitted ? again it's always best to remote mount these as it isolates them from engine vibration. Plus if it moves it away from a hot location, that's always a good thing too.