Stock 5.3 11 Silverado Z71 Limits?
May 14, 2017 | 07:05 AM
#1
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From: St paul
Stock 5.3 11 Silverado Z71 Limits?
Here what's done
TSP .550 stock converter cam with LS6 springs, 1-7/8 long tubes with sweet off road Y Db corsa exhaust. Then put the TVS 1.9 on and pretty sure it was the purple injectors. My turner buddy said we are out of injector on gas @ 7.9 psi (3.2 pulley) and turned down the rev limiter to 6k. Was also 0 degrees outside when he tuned it.
So my next step we are calling it stage 2+... 1000cc injectors 2.9 2.8 pulley and think he recommended putting a better valve spring in it. And at some point getting back to flex fuel and hop switch 044 fuel pump.
Is this asking a lot out of it? Can't really find the info I'm looking for.
TSP .550 stock converter cam with LS6 springs, 1-7/8 long tubes with sweet off road Y Db corsa exhaust. Then put the TVS 1.9 on and pretty sure it was the purple injectors. My turner buddy said we are out of injector on gas @ 7.9 psi (3.2 pulley) and turned down the rev limiter to 6k. Was also 0 degrees outside when he tuned it.
So my next step we are calling it stage 2+... 1000cc injectors 2.9 2.8 pulley and think he recommended putting a better valve spring in it. And at some point getting back to flex fuel and hop switch 044 fuel pump.
Is this asking a lot out of it? Can't really find the info I'm looking for.
May 14, 2017 | 10:03 AM
#2
Stock bottom end can handle 800+ whp if everything is safe and the tuning is dialed in.
Stock rear G80 won't handle that and with the power you have now it's not liking life if it's still in there. The stock 6L80e they say is good for 500-600hp, maybe a little more with good tuning. Hard to say how long it would last with abuse.
Stock rear G80 won't handle that and with the power you have now it's not liking life if it's still in there. The stock 6L80e they say is good for 500-600hp, maybe a little more with good tuning. Hard to say how long it would last with abuse.