So I just had a hole patched up in my Y pipe. Running a Turbonetics Kit with a larger T67 Precision Turbo. Pulled out onto the interstate and opened it up - Instantly kicked past 21 PSI. I know this because my HKS Boost controller keeps track of the last run. Lucky as S***, and yes, I should have watched it closer, but in only a moment it happened, and would have continued to climb had I not taken my foot off it. Scary stuff, and my engine should be in a million little pieces. Turned out that the vaccum hose out of the Turbo was smashed closed, and all that was needed to fix was about 1" cut off the hose and to be refit. Originally I was thinking that the in and out was swapped to the Wastegate, but all checked out. Funny how 10 cents could cost 10 grand....
Maybe a good reminder to all running FI that when you least expect it...

 

I had to see this befoe I left for dinner and drinks.

 

Did everything around the car get blurry running that amount of boost?

 

^ lol no that now your thinking about




NOS* not now

 

wat

 

There fixed the 1 letter for ya.

 

Engines won't just instantly blow when you hit a boost spike like that. If the a/f was ok and the timing was really conservative then it could last.

Hell, the guys up at GRD in chicago F'ed me over on my tune. I ran a whole day of boosting with 28* timing at 12psi of boost with a stock block. It took a day of that before the head gasket finally popped and that was all of the damage.

 

I would say your pretty lucky. Did you log any knock?

 

Interesting!

 

Sketch! Stock block?!

I'm curious to know of current and up to date status' of boosted Z's that are on stock blocks.
People say that the key to not blowing a motor is the tune?
Tunes for the Z must be damn efficient now a days?

 

The key is low timing. That SylvanLake guy is at 500 whp and said it's low timing?

 

I wouldn't say that is exactly true. There is a point where too low of timing or too much retard will make EGT's rise which can be just as dangerous.

 

your not the first to hit 21psi on a stock block and live to tell about it.

 

Not trying to thread jack OP or anything but...
Low timing eh?
I've been trying to read more into FI, i've got LOTS to learn still.
I keep finding old threads from like 04 but I want more up to date info.
I would like to go boosted but not on a stock motor that already has 84k on it. Ya know?
I mean, I could understand that a stock motor with low miles would be able to handle FI.
Unless 20k miles vs 80k miles doesn't matter?
With such variables as car maintenance?

 

Confirmed... this can be an issue.

 

Im sure when people say low they mean conservative. Not so low to cause egt issues.

 

Lots of old threads with outdated info, yes, but the principles behind most of those threads are still the same. It's either accurate or it's not. Sometimes the best thing to do is understand the basic concepts of the mechanics first and then go application specific.

Plenty of people with high mileage boosted blocks on these forums. I was just pleasantly surprised to see Nikki's car at Zdayz running as strong as it is at ~400whp, supercharged and still strong with well over 100K on it now. Again, tune and install very important. Many times, high HP guys want a seasoned block, not a brand spankin new one, just something to keep in mind. I ran mine for two years stock block at 430whp with no issues, never blew it, just decided I wanted more power and built another block.

Car maintenance is the most important thing once modding aside from the initial install and tune... Monitoring temps, A/F, oil levels and consumption as well as how it looks... Changing the oil regularly is IMO one of the most important things to ensure longevity. It is like a road map to many other things in the car IMO (metals, oil testing, color, etc...)

 

So what are you using to tune and why doesn't it have an overboost fuel cut?

 

Curious what your car puts down power wise with that turbo upgrade and the Asian ***** girth piping in that kit...

 

ROFL