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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 12-06-2007, 10:54 PM   #11
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Quote:
Originally Posted by agrazela
2) The stainless version is mated to a mild steel head flange and crossover flange recycled from a stock manifold, and often cracks in those spots within months.

If they ever came out with an entirely stainless version, it might be worth looking into, but would likely be cost-prohibitive.
There is a reason for that.
Since stainless expands significatly more than mild, it can snap the exhaust bolts/studs.
So, it'* safer to use mild for the flange.
That'* what I did with my buddies turbo manis.

I don't like how they used the stock cast flange though. Thats just asking for cracks..
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Old 12-06-2007, 11:50 PM   #12
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Excuse my stupidity, but what exactly is skewing?

:edit:
Keep in mind this will be for a mildly modified L36, so I think headers are out of the question...
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Old 12-06-2007, 11:56 PM   #13
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Example .... When you install a front PLOG you tend to have the injectors on the front bank flow 2-3% more than the rear bank.... In your case this can be done through the PCM

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Old 12-07-2007, 11:20 AM   #14
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Quote:
Originally Posted by jr's3800
Example .... When you install a front PLOG you tend to have the injectors on the front bank flow 2-3% more than the rear bank.... In your case this can be done through the PCM
Or with injectors through FIE.

The PLOG outflows the ported rear. Most guys see better results with a skew, although ZZP has been on both sides of that fence in the past. Bottom line is that you'll get what you want if you skew. If you don't skew, the opinions are from barely noticable to noticable improvement.
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Old 12-07-2007, 01:42 PM   #15
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If I had an NA I'd be more inclined to get a PLOG so you might as well give it a shot.

From what I've read you should skew the front injectors to get any noticeable improvement.
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Old 12-10-2007, 11:10 PM   #16
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well i whent from 15.50 to 15.30 whit my plog from PEM whit no skewing and so far i have no cracks it made a good difference on the upper RPM
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Old 12-11-2007, 12:06 AM   #17
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And didnt you pick up a gain in MPH?
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Old 12-12-2007, 02:38 AM   #18
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garbage i didnt notice any gain and i had a skew from FIE 3% over the rear bank
i had a Rear PEM too

save your cash and get headers!
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Old 01-02-2008, 10:05 PM   #19
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The zzp ss plog reduced my KR by 3 degrees and that'* without a skew
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Old 01-02-2008, 10:28 PM   #20
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What were the conditions you scanned in on both tests? It'* alot cooler now than it was a month ago. When was the last KR scan done, and when was the Plog installed?
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