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Done deal.. Maxed out 4.8L/76mm Magnum. Next?

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Old 09-24-2012, 11:01 PM
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Originally Posted by foose04
That was with ls6 cam and still on stock heads.



No options there, better off changing turbo all together.

As for dp, I hate to spend a couple hundred dollars and have the same issue and then have cut it off to run a different 4" outlet turbo. Current setup is 3" into cutout.
Awesome. I'm doing a 4.8L swap into my GTO, only using 243 heads instead to keep the compression up a little bit. Looks like LS6 cam is a solid choice. If this truck is in the 10's with this motor... I should easily be able to hit 9's with some work. Unbelievable.

Which year cam are you using? What part#? There are two of them so I'm curious on the specs.

You are still on stock bottom end right? Stock rod bolts? Mains?

Thanks
Old 09-24-2012, 11:07 PM
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You want the 04+ cam I believe.
Old 09-24-2012, 11:31 PM
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Interested to see what route you go. Truck sounds and performs amazing.
Old 09-24-2012, 11:33 PM
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Originally Posted by black00chev

I vote for this badboy right here!

http://www.precisionturbo.net/Street...GT42-Style/282
MSRP: $3,599.99 Ouch!

Originally Posted by Quicklynx

Which year cam are you using? What part#? There are two of them so I'm curious on the specs.

You are still on stock bottom end right? Stock rod bolts? Mains?

Thanks
I was using 02 LS6 cam, not sure on the p/n. Now i'm using a Speed inc Tu1 cam, but the turbo isn't making much if any more power due to the restriction (turbo turbine wheel) in the the exhaust at this level.

Still OEM bottom end, 109k miles on it now.
Old 09-24-2012, 11:38 PM
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Originally Posted by foose04
MSRP: $3,599.99 Ouch!



I was using 02 LS6 cam, not sure on the p/n. Now i'm using a Speed inc Tu1 cam, but the turbo isn't making much if any more power due to the restriction (turbo turbine wheel) in the the exhaust at this level.

Still OEM bottom end, 109k miles on it now.
Wow.... I can't wait. Can't believe the stock rod bolts are holding up to that abuse. I should change them simply because I always have a little less luck than everyone else, haha.

Thanks for the info. This is exciting. Good luck with the future mods. Please keep posting more vids. It was nice to see your vids without background noise or music. I found some on youtube of yours months ago, which is what got me wanting to try this block in the Goat. I wanted to hear the monster but there were always other cars burning out or something.

Beautiful build.
Old 09-24-2012, 11:41 PM
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What do you spin yours to, Rob? RPM has everything to do with rod bolt longevity. That's why the NA LS1 car guys break them running 12s and we can run 9s with a turbo in a truck...lol
Old 09-24-2012, 11:59 PM
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what about a twin set up?
Old 09-25-2012, 12:02 AM
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Thanks the compliments Quick and good luck with the goat.

Smoke, I aim for 6.5k shifts. I'm usually within 100-200 rpms of that and fuel cut comes in at 7k.
Old 09-25-2012, 12:15 AM
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I am absolutely amazed how well that motor is holding together for the punishment you are putting it through.

In for what your next move is
Old 09-25-2012, 12:46 AM
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I think a S475 with either the 83 or 87 turbine and a 1.10 housing, T4 of course


Quick Reply: Done deal.. Maxed out 4.8L/76mm Magnum. Next?



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