Ya it got to a point on my old Zei setup that I couldn't hear the beep nor catch the light.

BTW I got all of the DL-1 gear still if anyone's looking for that level of logging.

 

you guys are waaay over complicating it.
You set it up on a 2d table oil pressure vs rpm. At an absolute minimum you want 10psi per 1000rpm. ideally double. for example your cut would be at 50psi at 5000rpm and 10psi at 1000rpm. Having a buzzer or a light isnt going to really help because by the time it goes off and you go wtf is that and react the damage is done.
And no it doesnt cause a violent shunt which will make you spin out ive had plenty of cuts go off mid corner, its just like having a missfire, it wont make you spin out or anything like that.

Also you dont lose steering/braking etc. If your still in gear everything is still turning over so your power steer pump etc is still being driven off the belt and your still pulling a vacuum via the cylinders.


Like EVO8LTW said you could use a datalogger and have it set conservatively but this isnt going to save your motor if you have a sudden loss of oil pressure e.g if the sump sloshes and the pickup sucks air. It will only tell you if youve got something slowly failing.


Ive even had a fuel feed line fail at full throttle 200kmh and 30psi boost. Blew the hose off the fitting and my ecu detected the fuel pressure drop and the wideband detected the a/f ratio went lean and it instantly killed the motor and did no damage. Without protection this woulda been bye bye engine.


It depends how serious your car is i guess but $4000 on a drysump kit to save $15 - 20k worth of engine is a good investment. as is $1500 or so on a decent aftermarket ecu

 

I don't know about relying on a reactive system like this. Isn't losing pressure at RPM already kind of too late, damage being done? Sure you would want to know, and take action to prevent further damage, but I wouldn't want to rely on that as my primary protection. Like ****ty analogy time, you could have a watch that tells you're having a heart attack, but that doesn't mean you should eat badly and not exercise.

 

It's really common for our cars to drop oil pressure in right hand turns without a dry sump. I have a warning light/buzzer so I know when and how often it's happening. I don't panic just because it goes off (and it does go off here and there). But if I ever lose an oil pump or there is a serious problem, a steady piezo buzzer is going to cause me to lift and pit. By that same token, I have a buzzer in my car when the ECU detects knock. It's loud and I can hear it even with a helmet on. An occasional alert is not a big deal, but if I get a lot of knock, I'm going to know something is up.

 

Yeah, and that loss of pressure at least causes damage to the oil pump right? That is what I have been led to believe anyway. Next in line would be the turbo and so on. Again it's just taking steps to prevent a bad situation vs. reacting to a bad situation as its happening. Oil starvation being such a common problem, as you pointed out, just makes it that much more reason to address it proactively.

 

I didn't read the entire thread, so forgive me if the topic has changed already.. but looking at your mod list, I don't foresee you pulling enough Gs in a turn to worry about oil starvation. Those tires aren't really going to grip well enough to worry about it. Plus you will be so busy managing either too much power or dealing with lag/sudden boost, assuming you drop the boost significantly. Not trying to sound negative.. just that you will be far too busy keeping the car on track to maintain decent cornering speed. It'll be a lot of fun, though. I love trying to wrangle in hard-to-drive cars
Anyway you will be fine. Keep an eye on pressures, just in case. Have fun!

 

I'd be in if I could COMPLETELY install one for $4k.

 

I did mine from start to finish for about $5500NZD

We bent up tubular aluminium oil feeds and returns and installed ourselves

 

Yea the theory is if you suck air the lobe gears inside the pump will float/chatter then they eat into the housing of the pump and once you have wear here the pump no longer builds pressure.

By the time you lift and pit your engine will probably be toast unfortunately. The only way youll save a motor if you lost an oil pump or lost oil pressure is an instantaneous cut. If your at say 5000rpm or more and ur alarm goes off cause youve got 10psi oil pressure the engines already toast guaranteed. Even if you do have that buzzer up at like 50psi by the time it goes off and you go huh whats that scan ur instruments and roll out of the throttle uve had 3 seconds of no oil and your bearings at a minimum would have spun

Pretty much. I guess the only thing you prevent is you only have to replace all the engine components and not source a new block cause its chucked a rod haha. They have their time and place however for example if you have it set to ping at under like 50psi you can hear it through corners and know to roll out of the throttle but money would be better spent on proper engine protection

 

I don't have assess to that type of resource. Wish I did. 😔

 

We bought aluminium "O condition" tubing in 2x lengths of 5m and a cheap tube bender for like $150. the tube is cheap also. then you just put AN fittings on and flare the ends of the tube and your done.

 

How’s this progressing? We’ve been doing Time Attack in the UK and with power and grip ever increasing oil is an issue.
from very early in the OP you ask why power is an issue over corners. What we found was powering out of corners with dollops of boost is where the biggest oil issue is and less so for pure cornering (apex).
were well into Accusump setup and have been testing with many mods to get us a longer lasting and higher minimum pressure. We’ve had lower than normal pressures from surge but still haven’t burnt bearings but we have killed motors in minutes when not using Accusump or any ecu safety cut. The ecu safety cut saves engines but spoils the fun so kind of pointless.

 

also went down the accusump and ecu route for a long time among other things like kiggly HLA etc.

spent as much as a drysump woulda cost me in the first place and then still had to build a drysump

 

^This.