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Old 12-29-2011, 11:13 AM
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Originally Posted by slammedsilvy
That's the kind of news I like to hear. The 4.8s, my year at least did not have flex fuel options. So my pump should be able to handle E85 also, it's all in the tune? Upgrade to bigger injectors and rock the stock pump for my goals, this sounds better and better if it works.
How's ur tranny? Stock? Reason I'm asking if it's stock ur gonna blow it at 380 to 400 to the wheels on the dyno I'm guessing it's the 4L60E right?
Old 12-29-2011, 01:06 PM
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Stock 77,000 mile 4L60E besides a Transgo HD-2 kit in it, shift delays removed in the tune and no torque management. I still want/need the Vette servo. A 80E will definitely be replacing the 60E when it pops, it won't be in the funds right away though. I'd like to 60E to last long enough so I could sell it as a working trans though to recoup some costs for the swap. Hopefully I don't get too carried away on the skinny pedal and the 60E can last a little while.
Old 12-29-2011, 02:16 PM
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My homeboys 09 4.8 blew his on the dyno while tuning it for a 50shot his final numbers where 371rwhp and 330tq of corse it's cammed to but they warned him that 4l60e even tuned with a shift kit it won't hold my advise is to get a better tranny and drive shaft because they will pop if it's the stock one
Old 12-29-2011, 03:50 PM
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Originally Posted by 62nalide
My homeboys 09 4.8 blew his on the dyno while tuning it for a 50shot his final numbers where 371rwhp and 330tq of corse it's cammed to but they warned him that 4l60e even tuned with a shift kit it won't hold my advise is to get a better tranny and drive shaft because they will pop if it's the stock one
^^ What he said. As for fuel, if your only looking to get around 400 to the ground, you'll be fine with the stocker. Good luck with it!
Old 12-29-2011, 10:19 PM
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I know some people get luckier than others, regardless with a decent amount of power they are a ticking time bomb. I just hope it can withstand a few months to save a little.

If someone can answer this just so I'm positive, my stock NON flex fuel pump can pump E85, it's just that the tables do not exist in the tune?
Old 12-30-2011, 12:22 AM
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Originally Posted by slammedsilvy
I know some people get luckier than others, regardless with a decent amount of power they are a ticking time bomb. I just hope it can withstand a few months to save a little.

If someone can answer this just so I'm positive, my stock NON flex fuel pump can pump E85, it's just that the tables do not exist in the tune?
you can, just swap out the injectors and i hope who tunes ur setup knows what he is doing but u HAVE to stick to E85 or ull burn up ur pump or even worst run ur engine too rich but most floks thats done it regret it just my 2cents, but really look into it but it has been done
Old 12-30-2011, 12:27 AM
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Originally Posted by 62nalide
good and bad at 9psi it made a healthy 626rwhp and 633rwtq but i wanted more they told me to keep it at 9psi and i told them lets push it some more at 12psi final run was 717rwhp and 752rwtq and then motor gave up i should of listen to them but i said more boost please but now i got a new build in process
i just wanted a ride in a 626rwhp truck, is that to much to ask?
Old 12-30-2011, 01:28 PM
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So a stock pump with bigger injectors should hold 400-500hp to the ground with out running lean?
Old 12-30-2011, 02:32 PM
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Originally Posted by Grunt6.2LTZ
i just wanted a ride in a 626rwhp truck, is that to much to ask?
tell me about it I didn't even get to play
Old 12-30-2011, 02:35 PM
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Originally Posted by ivan_key
So a stock pump with bigger injectors should hold 400-500hp to the ground with out running lean?
Oh yeah my stock pump did good when I was cammed and I was right at 422rwhp with a small cam too
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