What are the limits of stock '13 5.3?
02-23-2013, 06:56 PM
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What are the limits of stock '13 5.3?
Yes. Stock injectors, Stock fuel pump, stock everything...but now go and Turbo it.
On average how much Psi, how much horsepower can this motor reach without tipping into the "this motor is most likely gonna blow up soon".
motor in question is my 2013 RCSB 4X4 SIERRA.
5.3 DOD VVT flexfuel.
I was gonna do the whole longtubes and corsa and tune route but figured I'd just skip all that.
And go Trick turbo kit and have it tuned.
Rick has swayed me to go stage 3 instead of stage 2.
On average how much Psi, how much horsepower can this motor reach without tipping into the "this motor is most likely gonna blow up soon".
motor in question is my 2013 RCSB 4X4 SIERRA.
5.3 DOD VVT flexfuel.
I was gonna do the whole longtubes and corsa and tune route but figured I'd just skip all that.
And go Trick turbo kit and have it tuned.
Rick has swayed me to go stage 3 instead of stage 2.
02-23-2013, 07:51 PM
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Ditto. ^^
On my 07 4.8, before I switched to my 80 lb. injectors I was maxing out the stockers at a measly 3-4 psi. That was on E85, but pump gas wouldn't be much more. Now I'm out of pump at 6 psi.
On my 07 4.8, before I switched to my 80 lb. injectors I was maxing out the stockers at a measly 3-4 psi. That was on E85, but pump gas wouldn't be much more. Now I'm out of pump at 6 psi.
02-23-2013, 08:25 PM
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Thats kinda dissapointing lol...
I thought the stock E85 capable injectors were a little more stout.
4 psi is about 80 more horsepower boosted, Correct?
Thanks for the responses guys.
I thought the stock E85 capable injectors were a little more stout.
4 psi is about 80 more horsepower boosted, Correct?
Thanks for the responses guys.
02-23-2013, 08:54 PM
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mike at new era performance and his 5.3 is running 537rwhp with a whipple at 15psi on the stock pump which from what he has posted is either about maxed out or is. since his new mods probably added another 100rwhp, he is going to try and tune it to do more or swap it. the flex fuel pump should be good for decent power, you just need to swap injectors.
