Help please, I blew my motor and need to plan the rebuild

BGTV8 · 06-04-2017, 11:58 PM

Quote:

Originally Posted by Rusty

I have the ATI dampener from MA Motorsports too.

If it was rod bearing failure. The rod bolts could have stretch enough the let the bearing spin. I've had this happened to me. It was hard to pin down because all the parts was new.

Good point .......... another reason to use ARP products

Jhill · 06-05-2017, 02:12 AM

Quote:

Originally Posted by James10694

It is not uncommon to blow an NA engine if it's being tracked. The main cause is fuel starvation. If you're tracking your Z frequently you need to either buy a road race pump or keep your fuel above 3/4 tank. It's happened before. Check out ban25s thread.

Interesting I didn't hear ban had an issue. I occasionally track but try to keep a full tank. What happenend here a lean mis under load in turn exit?

Jhill · 06-05-2017, 02:24 AM

Wait so the ATI damper now fits non dry sump? Last I checked they still didn't. Anyone with one comment on if it smooths the slight buzz in the feet at 6000-7500? I know they (nissan) did a lot of work in the new vq35de and it is smooth all the way to 6500.

Rusty · 06-05-2017, 03:01 AM

Quote:

Originally Posted by Jhill

Wait so the ATI damper now fits non dry sump? Last I checked they still didn't. Anyone with one comment on if it smooths the slight buzz in the feet at 6000-7500? I know they (nissan) did a lot of work in the new vq35de and it is smooth all the way to 6500.

Where the F you been? I've had my ATI dampener since 12/15.

Spooler · 06-05-2017, 07:33 AM

This does look like dry sump time. Once he get's his oil pump out we shall know more. I wonder what the gears look like in the oil pump and if this is the only rod bearing to have oiling issues.

Jhill · 06-05-2017, 01:33 PM

Quote:

Originally Posted by Rusty

Where the F you been? I've had my ATI dampener since 12/15.

Ok I guess the note says dry sump only, call for oem application. Guess I need to call.

Any noticeable difference in engine smoothness at high rpm?

Rusty · 06-05-2017, 02:43 PM

Quote:

Originally Posted by Jhill

Ok I guess the note says dry sump only, call for oem application. Guess I need to call.

Any noticeable difference in engine smoothness at high rpm?

Never really notice. So it must be doing something.

MAMotorsports · 06-05-2017, 04:06 PM

Quote:

Originally Posted by Jhill

Ok I guess the note says dry sump only, call for oem application. Guess I need to call.

Any noticeable difference in engine smoothness at high rpm?

410-593-7080

Shoot me a call, I have a few on the shelf. ATI will not have any in stock, and depending on who you get may not even realize this exists. We worked with them a few years ago to bring on to market that is compatible with stock.

-Daelen

MAMotorsports · 06-05-2017, 04:10 PM

Quote:

Originally Posted by SurfDog

Good info. I was researching and only saw dampers that work without a dipstick (dry sumped). I'll call ATI and get the real story.

I don't think harmonics blew my crank but at this point anything is possible.

Hey,

As a few others in this thread have mentioned, you will want to take that motor all the way down to nothing and get it all cleaned/inspected. New stock crank at the minimum, Bryant has a 3.7 or a 4.0 crank we use, but, depending on your budget that may not be in the cards.

Shoot me a PM or call me at 410-593-7080 would be more than happy to go over some options with you, and we do also have the ATI dampers in stock currently. There are a few engine options out there for you depending what all you need the car to do.

-Daelen

SurfDog · 06-05-2017, 04:36 PM

Stage 2 Short block on the way from Z1. Also a new oil cooler core and Nissan Motorsport steel gear oil pump. I'll be remachining my heads here in denver.

Here's some of the schrapnel found in the pan!!!

It should be a good strong motor once I'm done.

lj909 · 06-05-2017, 04:41 PM

That's crazy!

Jayhovah · 06-05-2017, 04:48 PM

Quote:

Originally Posted by SurfDog

Here's some of the schrapnel found in the pan!!!

Rusty · 06-05-2017, 05:17 PM

Looks like the stomach contents of your motor after it ate it's self.

Spooler · 06-05-2017, 07:30 PM

What do the other bearings and rods look like? You need to get down to the root cause or you will have issues again.

phunk · 06-05-2017, 10:33 PM

I feel like a billet crank and a dry sump go hand in hand, and I wouldn't do one without the other. Both are so expensive individually... if the oil pump breaks and takes out a Bryant crank that is really depressing. If a stock crank breaks and goes through your Dailey Engineering pan and pump that is just as sad.

It would really be interesting to get oil pressure logging on a Z being used in track events with a factory style oil sump. It would just take one or two guys to log it for the rest of us all to use that data!!

06-05-2017, 04:36 PM	#40 (permalink)
SurfDog A True Z Fanatic Join Date: May 2012 Location: Colorado (9000 feet) Age: 56 Posts: 1,796 Drives: 09 6mt, 13 Sequoia, Rep Power: 15749	Stage 2 Short block on the way from Z1. Also a new oil cooler core and Nissan Motorsport steel gear oil pump. I'll be remachining my heads here in denver. Here's some of the schrapnel found in the pan!!! It should be a good strong motor once I'm done. __________________ 09 6spd Berk CBE, JWT cams, ZSpeed CSC, Stillen (25 row oil, brake cooling, sways, gen3 CAI), Passport (9500ci), Quaife LSD, Z1 400 hp kit, ss lines, pads, rotors, clutch etc, Phunk's pan and fuel starve fix

06-05-2017, 04:41 PM	#41 (permalink)
lj909 Track Member Join Date: May 2014 Location: Riverside Posts: 584 Drives: 40th 370Z Rep Power: 12	That's crazy! __________________ PW 07 HR350Z R.I.P. Totaled by 82yr old woman 2010 40th Anniversary 370Z

06-05-2017, 05:17 PM	#43 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,173 Drives: 2011 Nismo GM 6M Rep Power: 2684437	Looks like the stomach contents of your motor after it ate it's self. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

06-05-2017, 10:33 PM	#45 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,668 Drives: 370 Rep Power: 974723	I feel like a billet crank and a dry sump go hand in hand, and I wouldn't do one without the other. Both are so expensive individually... if the oil pump breaks and takes out a Bryant crank that is really depressing. If a stock crank breaks and goes through your Dailey Engineering pan and pump that is just as sad. It would really be interesting to get oil pressure logging on a Z being used in track events with a factory style oil sump. It would just take one or two guys to log it for the rest of us all to use that data!! Rusty likes this. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

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06-05-2017, 02:24 AM	#33 (permalink)
Jhill Track Member Join Date: Mar 2016 Location: San jose Posts: 854 Drives: 2013 370z sport Rep Power: 3384	Wait so the ATI damper now fits non dry sump? Last I checked they still didn't. Anyone with one comment on if it smooths the slight buzz in the feet at 6000-7500? I know they (nissan) did a lot of work in the new vq35de and it is smooth all the way to 6500.

06-05-2017, 07:33 AM	#35 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,792 Drives: 2013 Nismo 370z Rep Power: 2684392	This does look like dry sump time. Once he get's his oil pump out we shall know more. I wonder what the gears look like in the oil pump and if this is the only rod bearing to have oiling issues.

06-05-2017, 07:30 PM	#44 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,792 Drives: 2013 Nismo 370z Rep Power: 2684392	What do the other bearings and rods look like? You need to get down to the root cause or you will have issues again.