Greddy kit is COMPLETELY UNSAFE FOR MORE THAN 5.5 PSI unless you add a fuel system and custom tuning solution. I tested this on my car immediatly after install, and at 6.5 psi my air/fuel was in the mid 14's. This just isnt safe.

 

Well since noone started it yet, ill be the first.
Once again Greddy blows another motor, man those kits are the VQ35 killer.
I <3 APS.


How was that?

 

Oh ya and to actually contribute to the thread instead of just spamming like most idiots.
If you really dont know what your doing either
A) Learn
or
B) Go with SGP and dish out a few more dollars.
Oh and if you choose option A, do NOT start posting threads of what to get, search around, read the sticky threads in this section. Cause if you start new threads asking, i will hunt you down and take you to china town!

 

Hey Charles,
Where should the air/fuel be @ 5.5 PSI or for any PSI for that matter? I'm going this week to Dyno & Tune..and I want as much Education as possible before I go....

 

richc86:

I run stock engine 350zs around 11.3:1 A/F as soon as boost comes on. This is richer then you need, but sacrafices little HP and provides extra combustion chamber cooling to keep combustion more stable. The 350z Ignition System is a BEAST and will have no trouble sparking thru rich off the scale A/Fs at high boost... so dont worry about that.

The most I will go on stock ignition timing is to around 7 psi... but I dont know if I even recommend that. When a timing harness is used I usually pull out around 1 degree per psi starting like 4 psi. It all depends on what exactly im doing tho and how high im taking the boost, fuel octane, and vehicle owners expectations. There is no proper tunability in the E-Manage beyond 6-7psi until you add the MAP sensor also.

I prefer to tune with a return fuel system kit such as my own that uses a 1:1 regulator, because at idle the vacuum will drop fuel pressure allowing you to run less of a injector correction factor (MAF voltage hack) on the oversize injectors and the car will run more accurate ignition timing.

 

well if it makes you feel better, there is already an APS kit that has blown a motor. It is somewhere on this forum, just too lazy to search.

 

I don't think that was documented and confirmed. Just some guy with a one line post saying he did.

Still, it's only a matter of time until someone does blow a motor on an APS TT. No system is invencible, even if it can't go over 12psi.

 

taurran- cquence was joking- the guy who claimed the blown APS said he was just too lazy to post any info.

 

This says it all... Truly unbelivebale...

Greddy has about 5% culpability here, only to the extent that it did not include a complete EM solution and a safe map for anything over 5.5psi ... but what else is new? I am surprised that it didn't blow ont he very first run.

Good luck with the build, and pleaseee get the thing tuned next time.

 

choco,
do you happen to idle your z for two hours at a time while listening to the radio?

j/k

 

Even though he brought this on himself lets not flame the guy.

 

lmao

 

choco,

you are in luck. there is a built short block in the classifieds for sale. this would save you a couple of months wait. Here's the thread.

https://my350z.com/forum/showthread.php?t=125430

 

Choco, i see your in vancouver, you drove that copper z with the big wing? WHo did your install? I can recommend someone to work on your z, they did good work on my g35 vortech kit, and have built two forged ati procharger 350z s.