So far I am very happy with this unit. I haven’t driven my car in two weeks and the pressure is still at 30psi. I only have 4K miles on my car so no variator problem yet, so for me it was more of a preventative measure. I have noticed quieter starts in general though. The only problem I’ve noticed is this: I like to turn my car to “on” to release the pressure before start. It takes about 4 seconds for the tank to empty and the oil pressure light to go out. The problem is, the car sees the oil pressure go up without the engine starting, and then quickly fall as the tank pressure goes to zero. This throws a flashing oil pressure red light and it has to be reset with a obd II scan tool. I’ve solved this by only waiting 2 seconds with the switch to “on” before cranking. If I wait longer than that I get the code. Or you could just turn the key straight to “crank”, and you would get about one second of pre-lube, which is still probably enough. It’s great knowing I have oil pressure before starting, I want one of these on all my cars!Any updates guys? Have the variator noises came back? Any side effects? Any issues at all?
The dry sump accumulator is not a start up device...That motor uses high pressure VVT or variator units...Older design...They have the accumulator to make sure the VVT units can act quickly..The problem with high pressure VVT units is they absorb more mechanical HP...That is why no one uses them anymore...The chambered units on the wet sump engines are pretty much the industry standard these days.....J
I know, I should drive it more! It’s an 09”, I bought last year from original owner with 3000 miles. He had it for 10 years and never drove it. Still has original tires that I just bought replacements for. Love the car!Thanks for the update. Good to know this could throw a code/issue. Makes sense too. I wonder how the dry sump ecu handles this? I am looking to install mine soon, maybe in the next few weeks after this virus stuff subsides.
4k Miles! your car is a baby! ?
If i understand your question, that is the point of the oil accumulator. To prevent the variator knock on startup.This seems like an easier fix that also turns off the engine oil light granted without the other accumulator benefits and possibly without enough oil pressure. Has anyone with a variator issue tried this to see if it will eliminate the noise on startup?
My '08 GT has the 4.2L wet-sump engine with the blue valve covers, Engine #138063 . I believe all such engines with numbers lower than #148697 have the old-style variators without the check valve, so I'm scared to death that my variators will fail due to oil draining out of them after sitting...www.maseratilife.com