Sierra RST Stock 4.8L Turbo: 617HP/623TQ
#33
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Joined: Dec 2009
Posts: 1,560
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From: Charleston, SC
Thanks Llaverito, you've done some great things with that 4.8 of yours also. Any details you mind sharing on boost and timing to keep yours alive?
Blk Wdo, i'm still running this poor NV3500, if it wasn't for a very very slow 2-3 shift, it's held up pretty well, as is the stock clutch!! However if you look at my last dyno graph, I think there is a hent of it slipping on the last pull. Gearing is 3.73 and a true-trac pushing her forward.
I plan to switch to a 4l80e if I keep this High HP life up, we'll see.
Blk Wdo, i'm still running this poor NV3500, if it wasn't for a very very slow 2-3 shift, it's held up pretty well, as is the stock clutch!! However if you look at my last dyno graph, I think there is a hent of it slipping on the last pull. Gearing is 3.73 and a true-trac pushing her forward.
I plan to switch to a 4l80e if I keep this High HP life up, we'll see.



Tried to granade it but never did
