GT-R turbos on the VQ37

Rusty · 07-01-2017, 05:01 PM

Would like to know what happen. What was the cause?

Elmo370z · 07-01-2017, 11:47 PM

is it a 09?

husam2012 · 07-03-2017, 12:38 PM

Opened the downpipes and dropped the pan.. not a single thing blocking the pickup tube and somehow the turbos still feel healthy with no resistance and no shaft play.

Any ideas why there was no oil pressure?

Sent from my iPhone using Tapatalk

phunk · 07-03-2017, 12:55 PM

Oil galley gaskets are a common problem.

I dont know at what pressure the oil pressure switch closes. I will see if I can find it in the service manual. Perhaps you only had very low pressure rather than zero pressure. If the engine was only at idle and not being driven, it doesnt take much oil pressure to sustain. How much was the car driven or run with the light on? It sounds like it might be possible that you dodged a bullet. I have seen engines last for years of abuse after brief oil pressure mishaps.

husam2012 · 07-04-2017, 08:15 PM

I actually hooked up a mechanical guage (cheap tester) and it didn't move at all which is what worried me.

I doubt it's the gaskets since that's a pre 2012 problem i believe. I also find it weird that the oil filter gets filled as soon as i crank it but the pressure gauge never shows anything. It's almost like the oil never comes back from the filter.

Only thing left to try is to remove the sandwich plate and try it with just the filter attached to the engine. I just have to order the shorter oil filter stud.

Jayhovah · 07-05-2017, 10:56 AM

Oh man... Hope you find the issue.

A stupid question - your oil pan spacer came with a matching oil pickup spacer/gaskets, yes?

I'm not sold it would be the OEM oil cooler sandwich... since it hasn't changed for this install... Also, I have taken mine off... it is a pretty simple device and seems difficult to clog.

Hope you get to the bottom of this soon, i've got my fingers crossed the motor is still healthy.

husam2012 · 07-06-2017, 04:31 PM

Good news! Finally found the problem. Somehow after removing the Mocal sandwich plate and getting the pre '12 stud, it works perfectly. Approx 100psi of oil pressure at idle.

The turbo return line was opened though haha so I have to clean up that mess tonight.

Crossing my fingers that the turbos and motor are still healthy

Sent from my iPhone using Tapatalk

Spooler · 07-06-2017, 10:12 PM

Quote:

Originally Posted by husam2012

Good news! Finally found the problem. Somehow after removing the Mocal sandwich plate and getting the pre '12 stud, it works perfectly. Approx 100psi of oil pressure at idle.

The turbo return line was opened though haha so I have to clean up that mess tonight.

Crossing my fingers that the turbos and motor are still healthy

Sent from my iPhone using Tapatalk

Did you have the thermostatic Mocal plate? If so, that thing is bad.

husam2012 · 07-06-2017, 10:25 PM

Quote:

Originally Posted by Spooler

Did you have the thermostatic Mocal plate? If so, that thing is bad.

Yes that's the one I have. Unfortunately was with the car when I bought it.

Sent from my iPhone using Tapatalk

jwick · 07-07-2017, 08:09 AM

Quote:

Originally Posted by Spooler

Did you have the thermostatic Mocal plate? If so, that thing is bad.

And what are you basing that on?

Spooler · 07-07-2017, 12:37 PM

Quote:

Originally Posted by jwick

And what are you basing that on?

It has a thermostat inside that opens up. Not sure why this happened. I would have to take it apart to see. I have one on my car and would like to know myself.

Jayhovah · 07-07-2017, 01:02 PM

Quote:

Originally Posted by Spooler

It has a thermostat inside that opens up. Not sure why this happened. I would have to take it apart to see. I have one on my car and would like to know myself.

I think the way you worded it - it sounded like you were saying the Mocal plate is bad in general, not that this particular one is bad. =)

I think tons of people are running Mocal plates and are happy with them... unlike the Mishimoto trash.

Jayhovah · 07-07-2017, 01:03 PM

Quote:

Originally Posted by husam2012

good news! Finally found the problem. Somehow after removing the mocal sandwich plate and getting the pre '12 stud, it works perfectly. Approx 100psi of oil pressure at idle.

The turbo return line was opened though haha so i have to clean up that mess tonight.

Crossing my fingers that the turbos and motor are still healthy

sent from my iphone using tapatalk

victorious.

Spooler · 07-07-2017, 02:53 PM

Quote:

Originally Posted by Jayhovah

I think the way you worded it - it sounded like you were saying the Mocal plate is bad in general, not that this particular one is bad. =)

I think tons of people are running Mocal plates and are happy with them... unlike the Mishimoto trash.

Friends don't let friends buy Mishimoto.

Jayhovah · 07-07-2017, 02:59 PM

Quote:

Originally Posted by Spooler

Friends don't let friends buy Mishimoto.

Someone needs to tell that to Trips and AK.

07-01-2017, 05:01 PM	#301 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 34,852 Drives: 2011 Nismo GM 6M Rep Power: 2684436	Would like to know what happen. What was the cause? KngScottieV likes this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

07-03-2017, 12:38 PM	#303 (permalink)
husam2012 Track Member Join Date: Mar 2015 Location: Michigan Posts: 542 Drives: 370Z Nismo Rep Power: 9469	Opened the downpipes and dropped the pan.. not a single thing blocking the pickup tube and somehow the turbos still feel healthy with no resistance and no shaft play. Any ideas why there was no oil pressure? Sent from my iPhone using Tapatalk Jpzman likes this. __________________ Creator of the GTR TT Conversion Kit, NA Record Holder (401WHP) Ecutek Master Tuner (VQ37, VR30, VR38, B58, S55, S58) BTWTuning

07-03-2017, 12:55 PM	#304 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,654 Drives: 370 Rep Power: 944523	Oil galley gaskets are a common problem. I dont know at what pressure the oil pressure switch closes. I will see if I can find it in the service manual. Perhaps you only had very low pressure rather than zero pressure. If the engine was only at idle and not being driven, it doesnt take much oil pressure to sustain. How much was the car driven or run with the light on? It sounds like it might be possible that you dodged a bullet. I have seen engines last for years of abuse after brief oil pressure mishaps. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

07-04-2017, 08:15 PM	#305 (permalink)
husam2012 Track Member Join Date: Mar 2015 Location: Michigan Posts: 542 Drives: 370Z Nismo Rep Power: 9469	I actually hooked up a mechanical guage (cheap tester) and it didn't move at all which is what worried me. I doubt it's the gaskets since that's a pre 2012 problem i believe. I also find it weird that the oil filter gets filled as soon as i crank it but the pressure gauge never shows anything. It's almost like the oil never comes back from the filter. Only thing left to try is to remove the sandwich plate and try it with just the filter attached to the engine. I just have to order the shorter oil filter stud. ScottM likes this.

07-06-2017, 04:31 PM	#307 (permalink)
husam2012 Track Member Join Date: Mar 2015 Location: Michigan Posts: 542 Drives: 370Z Nismo Rep Power: 9469	Good news! Finally found the problem. Somehow after removing the Mocal sandwich plate and getting the pre '12 stud, it works perfectly. Approx 100psi of oil pressure at idle. The turbo return line was opened though haha so I have to clean up that mess tonight. Crossing my fingers that the turbos and motor are still healthy Sent from my iPhone using Tapatalk Trips, scratchdvinyl, 2011 Nismo#91 and 12 others like this. __________________ Creator of the GTR TT Conversion Kit, NA Record Holder (401WHP) Ecutek Master Tuner (VQ37, VR30, VR38, B58, S55, S58) BTWTuning

07-01-2017, 11:47 PM	#302 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,707 Drives: 09 nissan 370z Sp M6 Rep Power: 295377	is it a 09?

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