Blew it up

zguynate

After a year and a half and roughly 11k miles boosted, my motor popped.

I was giving a coworker a ride after work on Sunday and did a nice 2nd-5th pull letting off as soon as I shifted out of 4th and in 5th. My buddy says "This is the fastest car I have ever been in" and I'm all like So I hit it again otw back in 3rd, changed to 4th gear and at about 5-6k RPMs I hear something under my car that sounds like a coffee grinder. I thought I hit something in the interstate.... until I saw fire coming from both sides of my car. I immediately knew that my motor popped. It was a sad day. That night I contemplated the meaning of life and all other kinds of deep thought lol. I havent had any time to tear it apart to really see what happened, however there really isn't any reason for me to do so. I don't have the money in my "car fund" to fix it, so if I take it apart I'll end up having car parts EVERYWHERE for a long period of time. Now some pictures:









They aren't the greatest pictures, but in the second picture, you can see oil all over the rear bumper. The third and fourth pictures show what I found when I removed the metal plate covering the steering rack and lines. Its hard to tell, but there is a rod bearing, rod, piston, piston ring, oil pan, and other assorted metal pieces in there. I won't know the real carnage until I get some money to do whatever Im going to do with the car. Overall I'm really bummed. I contemplated selling the car for $8k as is and being done with it, but decided that I will wait until my emotions aren't influencing my decisions lol.

Now for the questions that everyone will ask:
-Turbo kit: Boosted Performance

-Yes the car was tuned. It was tuned by Jon at Z1. I changed some of the intercooler piping, so I had some minor drivability issues, but at WOT the tune was solid, running more on the rich side that it was lean. (11-11.4ish)

-I was making 532hp and 500tq to the wheels

-When I would drive the car, I was very easy on it. Like a grandma. When I would DRIVE the car, I beat the crap out of it

-I have 750cc injectors and CJM's RRP (walbro 255 pump) and CJM fuel return. There were no leaks or fuel pressure issues.

-I did have a ticking noise at idle and while driving. I am relatively sure that it was transmission noise rather than engine noise though because 1) it sounds like its coming from the transmission when you are under the car and 2) it has been making the noise since December and I have driven the car like its supposed to be driven since then, even making the trip to ZdayZ and back with 0 issues.

-What was the cause? Im not entirely sure. Im thinking that with my driving combined with 500 lbs of tq, that the little rods couldn't handle it any longer and gave in.

-Whats next? Again, I'm not sure. I don't know if I want to rebuild the motor to handle more boost, throw in a used motor and dial down the boost a little, or swap in something else. I love the thought of an LS due to simplicity and ease of getting parts. Im just not sure of the thought of an LS in my Z lol. We will see I guess.

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2009 370z touring w/sports package

Chuck33079

That's my guess.

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Big J

That sucks. Maybe sell the turbo kit to fund a LS motor or rebuild yours.

a.stewart4242

That sucks, sorry to hear. Hope you get it situated soon.

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FairladyZ10PG

Sorry about your situation...

While boost is so addictive and tempting... this is one of the reasons why I just can't go boost...

I'd be worrying about blowing my motor too much to even enjoy all the power... but then again I'm a type of person who worries before things even happen

Good luck

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jwick

I completely agree. 500wtq on a stock block and pump gas is a lot to push.

Sucks to see your baby in pieces bud. I vote for rebuilding it but I can't lie and say a LS with 450/450 wouldn't be fun all day!

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'10 G37T 6MT Graphite/Graphite - BP - G37T Build

jwick

Question. I see you mentioned changing IC piping. That mean you changed to V2.0? I definitely would have retuned after that. I have a hard time saying for sure because I changed exhaust at the same time but my tuner definitely had to do some tune dialing in when I upgraded.

Did you upgrade to 3" intakes too?

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'10 G37T 6MT Graphite/Graphite - BP - G37T Build

Akrobatik

Has anyone here put in an LS into a 370 yet?

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TerribleONE

Good luck with whatever you decide...

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birdman71

Should have had a v8


One person is in the process of fitting an LS3

and to the OP sorry about hearing about the engine blowin,
that's why If I ever decide to go boost I will be getting every little mod known to man kind to support the type of power the car would be getting besides the mandatory mods for boost. Sadly that will cost me anywhere between $25-$30k instead of $15-$20k like the average is discussed. Like for example I put a Spec Stage 3 clutch in my Z but I know by the time I want boost the WHOLE Clutch/Flywheel combo, Rear Diff, FI exhaust from the end of the FI LTH for the turbos, increased oil cooler size, Powerhouse Amuse or +1INGS Aerodynamic full authentic body kits, entire Fuel system, sump pump, CSC elimination kit etc. will need to be done. EVERY LITTLE THING that I could do to prevent and engine blow I would..
Plus I would do all of that at once just cause my car would have to stay there period, just rather them knock it all out in one sitting. Now having the money is a different story lol.

If I ever end up not going boost, I'm going to tune it (don't know which yet), still going to do the body kit, Full ARK Grip exhaust system (gotta figure out something from my friend, he knows a website I guess to where he knows the owner of the company and is good friends and when the parts get made they can be 50 state smogged and the sticker put on there even though they don't qualify to even pass smog in CA.) So even though my car wont pass smog with the ARK exhaust the stickers from the manufacturing company give the right of way. So hopefully looking to never have to exchange my damn exhaust for a smog check.

Just my two ideas incase you are able to get any ideas of what you want to do with your Z. Honestly an estimate from a shop might not be a bad idea just to see exactly all of the damage and what everything would cost at least for OEM. Gives you a starting point to start choosing a path for the Z

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jwick

Think there is one at my tuners shop but I could be mistaken and they are all 350s.

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'10 G37T 6MT Graphite/Graphite - BP - G37T Build

TopgunZ

Been there done that man. Mine let go right at redline in 2nd. I am about 90% sure it was because I ran out of fuel up there. I think your 255 was really pushing it for 530hp.

I learned my lesson. If you go built motor go with a short block from IPP and use your heads if salvageable. I have a ton of extra parts laying around too if you need some. I have a set of heads if you need and such.

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zguynate

Yeah I changed to the V2 version of the piping, but still kept the original intakes. I did some tuning myself to the car as far as drivability to fix it. I didn't get it perfect, but it was good enough to drive. Under WOT, AFR and timing were good. I ran a few datalogs to monitor back when I first made the change.

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2009 370z touring w/sports package

zguynate

I know I was pushing it on my fuel pump. That will be addressed whenever I figure out what ill be doing. Im leaning toward rebuilding the motor. A company called PRS will be selling a closed deck block design soon. Ill probably look into that. Im also kind of interested in the HR head swap. We will see. I have A LOT of research to do. Im not going to cut any corners when/if I rebuild, so it may take me a good while to save up enough money to get it running again.

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2009 370z touring w/sports package

zguynate

Im generally a conservative person. However I have a daily and knew that it could happen, so I wasn't really upset about it. A motor rebuild doesn't necessarily fit into my financial planning for the next 5 years. However I can adapt lol. Knowing I had a daily made me push the car a little more than I would have had I not.

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2009 370z touring w/sports package