Zilla's rebuild (exhaust mod revealed, gauges going in.....) - Page 48 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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 04-26-2007, 01:44 PM   #471
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Quote:
Originally Posted by big_news_1

But I guess it'* probably a little too late for you to take out the Comps and install new ones...
Never too late. It'* only a 3 hour job at most. But I'll give these more time. jr's3800 had patience with his, and it'* paying off.
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Old 04-26-2007, 01:49 PM   #472
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Quote:
Originally Posted by willwren
Quote:
Originally Posted by big_news_1

But I guess it'* probably a little too late for you to take out the Comps and install new ones...
Never too late. It'* only a 3 hour job at most. But I'll give these more time. jr's3800 had patience with his, and it'* paying off.
I hope it goes away for you Bill... BTW, the exhaust note is killer....
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Old 04-26-2007, 02:24 PM   #473
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thats a neat exhaust mod
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Old 04-26-2007, 02:56 PM   #474
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Quote:
Originally Posted by willwren
Quote:
Originally Posted by big_news_1

But I guess it'* probably a little too late for you to take out the Comps and install new ones...
Never too late. It'* only a 3 hour job at most. But I'll give these more time. jr's3800 had patience with his, and it'* paying off.
Getting even better when warm... Tick seems to have almost gone away totally... I'll pay attention to it for a few more days and see what I get from them... But they are getting better..

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Old 04-26-2007, 05:12 PM   #475
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I may have to shoot another barney vid this afternoon. I think I can blow him completely out from under the car.

I noticed at lunch today with 5 people in the car (more load), wide open cutout does decrease the amount of low-end torque. It seems my choice in cutouts was well-thought. A manual cutout would have been a compromise. Give up low to gain high. With this one, I don't have to give up anything.
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Old 04-26-2007, 07:04 PM   #476
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I was also wondering how does you powerband feel in the topend? Before winter overhaul VS. now. I am wondering what some headwork and rockers to for the series 1 topend!
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Old 04-26-2007, 10:47 PM   #477
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Mass confusion in the PCM. At times, I'd say 10-15% stronger than last season, but it'* hard to tell. I haven't driven it in 5 months.

I'm most interested in getting the wideband O2 hooked up right now, as well as the other gauges (with memory) and the new Gtech, then doing some scans, O2 logs, and Gtech logs to find out what the PCM is seeing and figure this mess out.

Other times? The SLE (with intake, pulley, shiftkit) would beat it. Say about 25% of the time, the Zilla takes the win. 75%, the SLE does.

Based on logs and scan data, minor tweaks in fuel pressure may be enough to more than even the odds. Further tuning from there should be pretty remarkable in comparison to last year.
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Old 04-27-2007, 12:52 AM   #478
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Tonight wasn't much.......work on the pillar pod.

With 4 gauges to install (two replacements and two new), and the importance of those gauges in figuring out my tune, I have to get this thing repaired and get back in business. It had cracks when I purchased it, and it'* past time to reinforce and fix it.

Fiberglass happened last night after the cutout install. Bondo and glazing was tonight, and final sanding, texturing, priming, and painting will be tomorrow:

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Keep in mind, of the 4 new gauges, only the voltmeter has no memory function. Trans temp and boost/vac have High/Low memory functions, and the wideband O2 has PC logging. Very valuable tools in figuring out the car. Couple this with Gtech logging and scans, and I'm close to all the tuning help I need at this point.
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Old 04-27-2007, 07:35 AM   #479
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Why are you glazing and sanding the pillar won't the rest be textured and only that one be smooth?

When you say voltmeter doesn't have memory, you should be able to record most functions....although it sounds like you need to pull out the clipboard and write things down for further data comparison/analysis or are can you record most w/o writing?
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Old 04-27-2007, 09:33 AM   #480
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Scantool will record high/lo voltage for a run. But not trans temp, boost, or wideband O2.

O2 will be logged, scan recorded, and Gtech run at the same time the O2 is logging. I can overlay the hp/tq/rpm curves from the Gtech with the O2 logging (time stamps).

Get where I'm going? Makes me a bit more capable than the OBD1 by itself would be.

The pillar pod was a mish-mash of smooth and textured already. Frankly, it wasn't very well made. I think you had one of these same ones, Boosty. It'll be smooth when I'm done, then I'll re-texture evenly over the whole thing.
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