For all of those who are running any FI setup who have experienced engine failure, please consider responding to this thread. There are many people in the VQ35DE community (both G35's and 350Z's) considering going down the FI path. Many of us (myself included) are somewhat less knowledgeable than the pioneers that first went down this road.

In light of what recently happened to GurgenPB, Zero2Sixty, JoeNismo, KPierson, and several others which I'm aware of, I'd like to collectively gather data showing the different scenarios that have led to the catastrophic engine failure.

If possible, please list the following:

1. <font color=blue>Type of FI method:</font color=blue> S/C, TT, Nitrous
2. <font color=blue>Brand of FI:</font color=blue> Vortec, Greddy, ATI, etc...
3. <font color=blue>Boost level at time of failure:</font color=blue> x.x psi
4. <font color=blue>How much rwhp were you running?</font color=blue>
5. <font color=blue>How much rwtq were you running?</font color=blue>
6. <font color=blue>what failed:</font color=blue> rod, piston, head, etc...
7. <font color=blue>list of parts involved in the FI set up:</font color=blue> from bov's to fuel pressure regulators to ecu reflashes, etc...
8. <font color=blue>was the car dyno tuned:</font color=blue> yes/no

...and any other pertinent information that can be added. I'm not looking to bash one system or method of FI, just looking to learn from others past experiences. Given enough exposure, a thread like this could be really beneficial to those considering going down the FI path in the future. If you did not experience a blown engine but have had problems with the FI kit itself (I think I remember DFW from FA having a problem with his Vortec unit) please include that as well.

I plan on posting this thread in multiple forums with the request of people answering the thread here, on G35driver.com.

TIA for sharing your experiences.

 

I'd also like chime in that we NEED to see how much timing retard (if any) was in place and what octane gas was used.

--Steve

 

Hey Guys

I really wish I had more time to do some real research, I just do not. But, let me write what I know off the top of my head (I am addign a few fields):

<font color=blue>Gurgen (gurgenpb - myself):</font color=blue>
1. Type of FI method: Twin Turbo Kit
2. Brand of FI: Power Enterprise
3. Boost level at time of failure: 5.7 psi
4. A/F at the time of failure: low 11's:1
5. Amt of timing retard/total timing advance at the time of failure: -5.1deg/~17deg total adv.
6. RPM at the time of failure: 4300 rpm
7. Fuel (Octane) used atthe time of failure: 91 (Chevron)
8. Engine Management used: TS Reflash
9. Timing retard solution used (if separate from primary EM): J&S
10. Fuel system upgrade (full fuel return w/ FPR or stock returnless?): Full fuel return
11. Fuel pump used: PE 255L/hr
12. How much rwhp were you running: ~350 (at this psi level)
13. How much rwtq were you running: ~350 (at this psi level)
14. What failed: Rod (presumed - engine not dismantled yet)
15. Additional pertinent parts/equipment used: HKS EVC V Boost controller, AEM A/F meter (WB)
16. Was the car dyno-tuned: No
17. Was the car street-tuned: Yes

<font color=blue>JoeNismo:</font color=blue>
1. Type of FI method: Twin Turbo Kit
2. Brand of FI: Greddy
3. Boost level at time of failure: 6.2 psi
4. A/F at the time of failure: 10.x:1
5. Amt of timing retard/total timing advance at the time of failure: ????
5. RPM at the time of failure: 2300 rpm
6. Fuel (Octane) used atthe time of failure: 93
7. Engine Management used: e-manage
7. Timing retard solution used (if separate from primary EM): e-manage
8. Fuel system upgrade (full fuel return w/ FPR or stock returnless?): ????
9. Fuel pump used: Walbro 255L/hr
10. How much rwhp were you running: ????
11. How much rwtq were you running: ????
12. What failed: Rod
13. Additional pertinent parts/equipment used: Greddy Profec E-01 Boost controller
14. Was the car dyno-tuned: ???
15. Was the car street-tuned: ???

<font color=blue>Fernandino:</font color=blue>
1. Type of FI method: Twin Turbo Kit
2. Brand of FI: Greddy
3. Boost level at time of failure: 7 psi
4. A/F at the time of failure: ????
5. Amt of timing retard/total timing advance at the time of failure: ????
5. RPM at the time of failure: ????
6. Fuel (Octane) used atthe time of failure: ???
7. Engine Management used: e-manage
7. Timing retard solution used (if separate from primary EM): e-manage
8. Fuel system upgrade (full fuel return w/ FPR or stock returnless?): ????
9. Fuel pump used: Walbro 255L/hr
10. How much rwhp were you running: ????
11. How much rwtq were you running: ????
12. What failed: ????
13. Additional pertinent parts/equipment used: Greddy Profec E-01 Boost controller
14. Was the car dyno-tuned: Yes (Failed while being dyno-tuned)
15. Was the car street-tuned: ???

 

You may want to dupe this post on my350z (or even the FI section of this forum) as those guys are forcing wind into their cars a lot more often than on this forum. Even with all of your data, Neffster, you are still going to have unknown values that will not give you peace of mind. Point is, no matter what you do when you force air, something could always go wrong, and you going to find that failure can happen before you even know it's coming. Gurgen has, unfortunately, pioneered that fact as well.