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This stuff for sure I need some work on.

I wish I would have saved one. Trying to get my friend back out here to nab one haha.

Man John.. I'm running a pte 5558 and e47 and my car knocked like craazy with the numbers anywhere near those tables.

On a side note, I was tuning a friends stock turbo LNF earlier today and...

Run a good MBC.

Just make sure to have your stock boost control solenoid still hooked up if you're running an mbc and let er rip :)

If you're using your stock bcs, try and set it extremely low to begin with so...

How heavy is the spring you are running in your wg?

A friend brought an idea to my attention, might have to give it a shot later, but just wondering what anyone might think of it.

He suggested setting the optimum spark tables to at or near what...

I just tried out some new off-idle timing with the optimum spark tables adjusted, and all I can say is wow.. Cold start was perfect, mid-range response was intense. I need to do some more...

Have you guys with the fluctuations made changes to all tables? I'm not sure how everyone has their spark timing set up, but if all your spark timing tables are the same (which is how I've come to...

If only things were that simple nowadays. Now we have spark tables for 4 different piston positions and lookup tables, variable camshafts, desired airloads and maf calibrations, lambda efficiency...

I've been considering doing this as well, I'm by no means an "old timer" but I definitely know what knock sounds and feels like, just have been a bit afraid of killing off the knock tables...

Gmt, I've been having some issues with the car not wanting any timing after my turbo swap. Do you think the optimum spark tables could have any effect on reducing this? I see kr on the logs, but I...

Great info gmt, can't wait to get a chance to try these out. You need to be issuing homework assignments or something haha. I'll post some results once I get a chance to give em a try.

I'm not on the stock turbo anymore but I had to run a .82lambda to clear up the knock I was seeing.

I don't particularly like the lack of a failsafe. :)

I'll be there soon enough as an inspector with the Coast Guard :usa:

This is a brilliant article.. All these acronyms are killing me though. :D



Looks like ZZP's got it right with their 5th injector. Although I think they are referring more to the Ford Bobcat...

Did a boost leak check today.. Seems as though I've got a pretty serious boost leak somewhere pre-intercooler. Going to investigate further tomorrow.

It's not that it runs like shit, but more that it wont run at all with the maf plugged in. Other than what would need to be a massive boost leak, what could cause symptoms like this?

I've...

Lol. I've been sitting here at work thinking about it. Gonna definitely try capping the purge valve. Need to check my bypass valve too. Wondering if it's stuck open. Could that cause the car to stall...

If that's the case, why would it run Seemingly fine when the maf is unplugged?

The cap blew off the valve. Pushed it back on and threw some mighty mendit on it to keep it in place. Ordered the new cap but it's on national backorder as usual. The evap system should be sealed...

This is a 2009 cobalt ss as well. Forgot to mention that haha

** A week ago my evap purge valve blew off under boost.**Immediately afterwards the car refused to build boost and obviously wasn't running correctly. It threw codes p0100, p0113, and p0114. Maf...

ZZP did it for a Scythe_Snake on his big turbo setup.. They relocated his Evap purge valve and mounted an injector into his intake mani. It supported his 5xxwhp on full e85.