Not yet...

 

Most likelt ROD end bearing failure.

 

I would actually doubt that since the motor still runs...if there was a rod bearing failure, it would have caused a rod failure and he'd have at least one hole in his block and a motor that doesn't run.

 

No all the time.The tolerances on the rod bearing can be so slightly elongated with just by a split second of oil starvation and the bearing would spin around the crank elongating the opening on the rod.It only take a thousandth of difference to make it knock like it is..Complete failure of the rod is when it tottaly seizes and snaps the rod.Luckily for Jimmy I dont think thats the case.

 

Nah, I was more concerned as to if you were just finishing getting on it and downshifting at too high of an RPM.

 

My old car I spun a rod bearing, and it still ran knocking its a$$ off. I drove it 25 minutes that way to the mechanic that did the motor for me....didnt damage the block, and the crank journal and rod were fine after machining.

 

The factory motor and rods are a fine fit for most <500whp turbocharged setups. I agree there are more people being boosted and less failure than ever. When several forced induction kits originally came out they did not address timing.

From what we've seen (tuned over 100 350Z&G35's) and countless hours of research and work with the factory ECU code the leading reason for rod failure is improper timing.

The factory ECU has very high timing and this is not ideal for forced induction. Additionally, there are several timing maps in the factory ECU. We have found that when the 350Z&G35 is on the dyno it commonly runs from the main timing map. The downside is that the factory computer can advance the timing, which is a major contributor to engine failure.

Case in point, I stabilized the factory timing maps on my personal 350Z. It has been a while sense my Z has been on the dyno (I last dynoed around 450rwhp @9psi) but have sense then used my wideband to run 10/11psi on pump gas with a 7,400rpm rev limiter - on a bone stock motor!

I am concerned for those with APS/Unichip and GReddy/E-Manage setups that do not have an ECU stabilization upgrade. I know some people have dialed in their Z & G to run spectacularly over the summer. But I am afraid this has been done without keeping in mind and/or having enough experience to realize the effects cooler weather will have on their tune this winter. I know this because I have had the opportunity to check and/or service several 350Z & G35’s that have been originally setup elsewhere.

I cannot stress enough for those people to speak with their tuner and make sure their vehicle is ready for the cooler temperatures and enough timing has been removed to compensate for the add'l timing the factory ECU may potentially add this winter.

Hope this helps,

Mike

 

****ty jimmy.. hopefully everything turns out okay for you.

trust me, i have the same string of luck (sans the blown motor) with cars. My custom 20's for the g got rocked by Fedex and my 4.6 20's for my x5 also go beaten up by Fedex. I also had body shop issues and dealings with bad body parts and paint issues. unless you can do everything yourself and always be 100% hands on with it, there will always be problems; no one ever treats your car with as much respect as you would.

good luck..

 

i hope mine turns out like this.. it would be a great start to some good karma..

 

Your in good hands now dude..

 

How do you get ECU stabilization?

 

If your refering to the timing maps,either a reflash or the UTEC will do it,since it fires the coils and totally controls the timing.

 

Get a flash and have them flash all three maps.

 

Through remapping the factory timing maps via an ecu flash. Another benefit of an ecu flash is the ability to raise your factory rev-limit, which helps us from hitting the factory limiter (6,600rpm) so frequently.

In the future (late winter / next spring-summer as far as I've been told) you will be able to input direct timing with several boxes including the UTEC, Unichip, and Emange EU. This will be a welcome feature for those without an ecu flash stabalization because these units should output the actual timing desired (vs. subtracting or adding off what the ecu if outputting for timing).

Hope this helps,

Mike

 

If understand the quote below correctly then the Emanage Ultimate will also do this very soon.

 

Does anyone know if the standard ECU reflash that comes with the Turbonetics kit reflashes all factory maps/ECU stabilization?

thanks

 

just do like i did and add a boost controller and turn the boost down one colder days.

 

Does the split second box/R4 software suffer from the ECU stabilization issue as well?

 

It doesn't directly control the coils so it would "suffer" just like any other piggyback.

 

I talked to Jason and Julian from MRC last night,I stopped by and saw the motor out of the car with the oil pan off.Just as suspected,shards of rod bearings in the oil pan,rod end bearing failure on at least 2 rods..What causes rod end bearing failure?