Blown Motor, Engine Rebuild/Replacement.

Chuck33079 · 03-19-2014, 08:57 AM

I'm very curious how it's going to sound, especially when it's cold. I've heard built motors that sounded as quiet as stock, and I've heard some that clattered like a diesel. I guess it depends on what kind of clearance they ran on the pistons.

esfourteen · 03-19-2014, 09:18 AM

I definitely underestimated how restricted that manifold exit was compared to the turbo flange, just called my shop to make sure they hadn't bolted the turbos up yet and fortunately I caught them before so they are going to grind that out as well, good catch!

As for break in, we used a pressurized lubricator that connects to the block and forces oil everywhere (no dry cranking) along with a break in oil for start up, after 20-30 minutes of running that at ~2k rpm, we drained it and replaced with conventional oil for the first 500, changed that for conventional again and left it until about 4-5k.

Once I swapped to synthetic at 5k I noticed my valve train noise from VVEL was MUCH louder than it was prior to the build and when I was breaking in the engine. I don't know if it was the break in oil or just the whole process but VVEL is noisy as hell now. I used an additive by RS-R called "ran up" and it was night and day difference, sounded like stock again, so I'm going to try ester oil to see if its quieter.

DEpointfive0 · 03-19-2014, 09:25 AM

^RSR Ran Up oil is BULLLLLLSHIT.
Get the one I recommended. Disadvantage is that it won't thin your oil like the other stuff. But it's the same additives

Chuck33079 · 03-19-2014, 09:28 AM

Quote:

Originally Posted by DEpointfive0

^RSR Ran Up oil is BULLLLLLSHIT.
Get the one I recommended. Disadvantage is that it won't thin your oil like the other stuff. But it's the same additives

Dammit man, now I have to go over to bob is the oil guy and read up on it. That place makes my head hurt.

DEpointfive0 · 03-19-2014, 09:41 AM

Quote:

Originally Posted by Chuck33079

Dammit man, now I have to go over to bob is the oil guy and read up on it. That place makes my head hurt.

It's a replacement quart of 0W20 and hi tech NASA used lubricants... AKA molybdenum...
So the 0W20 is why you get the 1-5hp increase, and the Mo is why it quiets the engine

Chuck33079 · 03-19-2014, 09:42 AM

Quote:

Originally Posted by DEpointfive0

It's a replacement quart of 0W20 and hi tech NASA used lubricants... AKA molybdenum...
So the 0W20 is why you get the 1-5hp increase, and the Mo is why it quiets the engine

So it's 300 ml of 0-20 and some moly?

esfourteen · 03-19-2014, 09:44 AM

Quote:

Originally Posted by DEpointfive0

^RSR Ran Up oil is BULLLLLLSHIT.
Get the one I recommended. Disadvantage is that it won't thin your oil like the other stuff. But it's the same additives

not sure what you mean by bullsh1t, its super expensive if thats what you mean, but it worked great. I'll give the Liqui Moly a try for sure though

DEpointfive0 · 03-19-2014, 09:45 AM

Quote:

Originally Posted by Chuck33079

So it's 300 ml of 0-20 and some moly?

I thought RSR was a quart? At best it's a ceramic additive, but I know NASA used Mo.

LiquiMoly is 300mL and some Mo.

Chuck33079 · 03-19-2014, 09:46 AM

Quote:

Originally Posted by DEpointfive0

I thought RSR was a quart? At best it's a ceramic additive, but I know NASA used Mo.

LiquiMoly is 300mL and some Mo.

I was talking about the liquimoly you linked.

DEpointfive0 · 03-19-2014, 09:48 AM

Quote:

Originally Posted by esfourteen

not sure what you mean by bullsh1t, its super expensive if thats what you mean, but it worked great. I'll give the Liqui Moly a try for sure though

It's just snake oil's snake oil. The "HP gains" are due to it being thinner. And the sound difference is the Mo in it. That's why Nissan's Ester oil has a high amount of Mo in it. To lessen the sound of valve chatter

roplusbee · 03-19-2014, 03:00 PM

Good info

COSMO · 03-19-2014, 10:28 PM

Well no word from vsr that my motor was shipped today... Having flashbacks!!

elperuano · 03-19-2014, 11:08 PM

Eeaaaaassyy. It's only 1 day. Not few months. Finishing touches prolly.

COSMO · 03-20-2014, 08:29 AM

LOL!!!!!

Quote:

Originally Posted by elperuano

Eeaaaaassyy. It's only 1 day. Not few months. Finishing touches prolly.

elperuano · 03-20-2014, 08:53 PM

So what's up Cosmo? Any word?

03-19-2014, 08:57 AM	#616 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	I'm very curious how it's going to sound, especially when it's cold. I've heard built motors that sounded as quiet as stock, and I've heard some that clattered like a diesel. I guess it depends on what kind of clearance they ran on the pistons. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

03-19-2014, 09:18 AM	#617 (permalink)
esfourteen A True Z Fanatic Join Date: Mar 2010 Location: LI, NY Posts: 1,375 Drives: 40th TT Rep Power: 18	I definitely underestimated how restricted that manifold exit was compared to the turbo flange, just called my shop to make sure they hadn't bolted the turbos up yet and fortunately I caught them before so they are going to grind that out as well, good catch! As for break in, we used a pressurized lubricator that connects to the block and forces oil everywhere (no dry cranking) along with a break in oil for start up, after 20-30 minutes of running that at ~2k rpm, we drained it and replaced with conventional oil for the first 500, changed that for conventional again and left it until about 4-5k. Once I swapped to synthetic at 5k I noticed my valve train noise from VVEL was MUCH louder than it was prior to the build and when I was breaking in the engine. I don't know if it was the break in oil or just the whole process but VVEL is noisy as hell now. I used an additive by RS-R called "ran up" and it was night and day difference, sounded like stock again, so I'm going to try ester oil to see if its quieter. COSMO likes this. __________________ Build Thread \| GTM TT Install Thread \| Engine Build Thread

03-19-2014, 09:25 AM	#618 (permalink)
DEpointfive0 Premium Member Bitches Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17151	^RSR Ran Up oil is BULLLLLLSHIT. Get the one I recommended. Disadvantage is that it won't thin your oil like the other stuff. But it's the same additives __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language:

03-19-2014, 03:00 PM	#626 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 22	Good info __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL

03-19-2014, 11:08 PM	#628 (permalink)
elperuano A True Z Fanatic Join Date: Oct 2011 Location: Southwest FL Posts: 1,374 Drives: G37S Rep Power: 29	Eeaaaaassyy. It's only 1 day. Not few months. Finishing touches prolly. Nixlimited likes this.

03-19-2014, 10:28 PM	#627 (permalink)
COSMO A True Z Fanatic Join Date: Dec 2012 Location: FL Posts: 1,816 Drives: 2012 Touring GTM TT Rep Power: 19	Well no word from vsr that my motor was shipped today... Having flashbacks!!

03-20-2014, 08:53 PM	#630 (permalink)
elperuano A True Z Fanatic Join Date: Oct 2011 Location: Southwest FL Posts: 1,374 Drives: G37S Rep Power: 29	So what's up Cosmo? Any word?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Blown motor!!!!	COSMO	Forced Induction	166	11-25-2013 09:33 PM
Someone in the DFW area who can rebuild a 370z motor	Denny McLain	Engine & Drivetrain	16	01-29-2013 06:27 PM
370z engine blown	Fabsnoop	Nissan 370Z General Discussions	53	06-03-2012 12:29 AM
WORST DAY!!!! Possible engine blown???!!!!	Westwood	Engine & Drivetrain	189	04-09-2012 12:28 PM
vq37vhr ( 370z motor ) NOT BLOWN	soaka1	Wanted	0	03-10-2010 11:01 AM