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Old 08-25-2009, 12:23 AM   #1
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Default Love the hoods

A GTP came over today, I've been doing a little work on this car for a bit now. He just installed his new hood.

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He'* coming back tomorrow to swap superchargers. His is making noise and we want to see if it helps him get better timing.
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Old 08-25-2009, 02:52 AM   #2
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I like that hood style. It looks way more aggressive on the GTP with the hood and fenders having more of a down swoop towards the grill.
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Old 08-25-2009, 05:09 AM   #3
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Yeah that is a nice ride.
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Old 08-25-2009, 07:25 AM   #4
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Hood looks nice. Oddly familiar though.

On the timing.. it'll only net him more timing if you are swapping from a Gen 3 to a Gen 5. Then the cooler charge should allow for a little extra.
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Old 08-25-2009, 09:32 AM   #5
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Bill his timing has been a real problem. Can't get him past 12 or so, he has a XP cam, headers, CAI, and still, no change in KR. We can hear a lot of noise from the SC so we are going to swap with a known good one.
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Old 08-25-2009, 10:36 AM   #6
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You are seeing KR?
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Old 08-25-2009, 10:49 AM   #7
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Not me, I'm holding 18*, but Rich, the GTP he'* only getting about 12* with a 3.4" pulley. He had the same with a stock cam, the XP cam should have helped but didn't, so something else is causing a problem. Rich said he remembers a lot of flash at the outlet of the supercharger. That'* why we want to try a different supercharger.
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Old 08-25-2009, 09:35 PM   #8
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Rich made it over today for the top swap.

We got right to work.
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Pulled the fuel rails, throttle body, vacuum lines, and brackets.
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And off came the supercharger
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Cleaned up the gasket surface a bit.
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And it all went back on.
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A last few odds and ends and it'* all done.
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Total time, 65 minutes. And that was with about 20 mins of cleaning up the gasket surfaces. And we took our time. Helps when you have two people that know what they are doing.

Started up after the fuel pressure built up and first thing Rich says is, it'* idling smoother. Pushed the throttle and then said, hey, it'* not stumbling. This engine has been a pain for a while, changing the supercharger seems to have corrected a lot of problems. The coupler is good, the rotors look good, but there is some noise in the area of the gears. I'll take the SC apart and then I will know more.

And off he goes, another happy customer. He wasn't happy about the rain, he wanted to put it down. He gave it a bit and it sounds really hot.
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Old 08-25-2009, 10:50 PM   #9
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I'd be interested to know what the issue was/is with the old SC. Let us know Dan!
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Old 08-25-2009, 10:53 PM   #10
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We had both sitting side by side and spun them. His sounded like it had rocks in the snout. But I can find no play at all. It'* just when you spin it. I think it'* the bearings.
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