That sucks dude...Hope it all comes out ok. Thats what happens when you push it out as far as it can go...I'm sure everything will work out for you.

 

It wasn't to much pushing the car... it was the 380cc injectors, but will know for sure tomorrow. The A/F and everything WAS running perfect and everything was fine.... and the coils and packs were fine... YEs RC injectors.
Does anybody know with my combo of Pistons and stock Rods how much boost I can hold???? And body know stock rods pressure??

 

You called my shop today correct? But you lied to me and said you were running an Emanage...Hmmm...
I honestly do not think your motor is blown..i think your issue is tunning related..Another thing to check is the lower plenum gasket, we saw the same condition on a car we did..Who is tunning your car? GodSpeed???Dont they have a scanner to hook up and see what the engine is doing?Whats the A/F ratio?Timming? What are the parameters set to on your UTEC??Ect...I still say go back the 380cc's and see if that resolves the issue...When trouble shooting you always need to go back to the last thing you changed..

 

That sounds like a good idea..

 

yeah. I'd exhaust everything before digging into the engine/pistons etc.

what did they use for a base map?

 

Thanks for the info, we cant tune the car anymore because of this problem.. he scaled the injectors in the car not on a dyno with a the utec software, and used the scanner. All of the gaskets were perfectly fine they said, Everything leads back to the injector leaning out, since all of the other cylcinders are fine so we switched the injectors around and the cyclinder 5 was still bad... all the wires and everything have been checked externally.

 

Hold on...I just heard GodSpeed used a MAF pull down on your car and not the Speed Density mapping..Your motor was most likely blown..I recant my prior statement, other than the part where I said it was "tunning related"..
The MAF pull down mapping is geared more for N/A cars with mild mods..A F/I car need the MAP sensor and needs to be Speed density tuned on the UTEC..
This is what we were reffering to when we were selling the UTEC locally to experienced shops, who had knowledge in tunning the 350z, such as Myself,Forged Internals and Z-1...

 

I dont understand what you are saying... where did you hear this? I wasn't even informed about this lol its my car.

 

I know EVERYTHING...

 

lol but what do u mean I have a map sensor with a GM boost solonoid...

 

That does not mean dick...Unless the end user has a clue what he is doing..And if they used MAF pull down over speed density on the UTEC, the A/F would be all F'd up..Causing the car to do funny things..By the looks of your compression you have a cracked ringland..Email me Ill send you Parameters and a MAP they should have been using..

Also ask them if they calibrated you Map sensor..

 

so, youre saying they tuned with car using MAF, instead of MAP(speed density), and caused this? surely Godspeed would know to use speed density on a FI setup!

man i hate this happened, hopefully it will turn out to be something small, good luck with everything, and if you do have to build the motor, spend another $600 and get some rods.

 

Thanks alot MRC... I will shoot you a email tomorrow.... I will call them.

 

You would think.....

 

I don't know entirely if thats the issue.... the car was tuned a week ago with the 380cc injectors, and the A/F at idle was 13.4 and at wot was in the mid 11's all the way through... also the car ran perfect when I had the 380cc injectors in, and he loaded the map of the software Turbo XS gave. But I couldnt go past 5000 rpms so thats why I got the 550cc injectors, and I never went past 5000 the week I had the car, and it ran perfect at idle and everything. So I doubt it was the tune, this problem happend exactly after the new injectors went in and he got in the car to make a temp fix so I could drive back it was to late to dyno, and thats where the cyclinder misifire 5 light came on.

 

13.4 at idle is a bit rich, my A/F with 650cc's at idle is 14.7...I still think your issue is tunning related, since you just said the car was not Dyno tuned with the 550cc injectors..You can not go from 380cc's to 550cc injectors without re tuning..Also werent you having issues starting the car a while back before the UTEC??
I would seriously look at the tunning or lack of at this point..

 

No not starting that was the kit with no flash then waiting on a UTEC... the car was partially tuned basically he scaled down the injectors to the right size.

 

A little of topic but is the guy at Godspeed named Bart. There was a Godspeed in Socal for a while and they closed up shop and I never heard what he did after that..

 

No thats not them... the Shop name is actually Tuning Factory, the owner name is Dan and they have been In Michigan for over 7 years now! Great shop very experienced, I will ask him tomorrow about the tune, he has done Many FI Z's so I highly doubt that was the issue.

 

Partially scaling is by no means tuning..They need to be tuned throughout the ENTIRE RPM and load site so as to ensure a proper tune..This is where a true load based dyno helps in making a MAP. Your car is 99% Not tuned correctly based on what you posted..