danny23

This is a 2001 silverado with TSP 220/220 .581/.581 112 with ls6 manifold intake, pacesetter long tube headers, x pipe stock cats,one dual inlet/dual outlet super 44 flowmaster,,, TSP tune, stock heades 862 I think,, not sure what stall to get maybe a 3200 or 3600 the trany is a 4l60e stock with 3.42
what number I should have on the crank hp

gamble686

iTrader: (3)

Wild guess 320ish. Not an ideal setup. Exhaust is choking it and tsp mail order is pretty weak.

danny23

So what will be an deal set up then??what about for the exhaust and 320 rwhp or engine hp,, the engine stock is close to 290- 300 hp right

Slow05CC

iTrader: (1)

I have similar mods. 5.3 with stock 706 ( for now anyway ) with pac springs, tsp push rods and the 220r on a 112 lsa. I am running longtubes, the corresponding off road y with a 3" catback. I have 4.30 gears out back and I am running the Circle D 3000-3200 stall.

To answer questions:
Exhaust: Seems fine IMOA That is about as free flow as it gets minus the crapmaster. I would go with something more free flowing like a borla, or corsa. Or on a cheaper scale a magnaflow or bassani. I run the H00ker Aerochamber and you can drop a tennis ball right through it.

Tune: I know a lot of people run similar mods on mail order tunes, but I would a custom ECU tune. Every truck reacts different and a live tuner and nail your tune on the first try. I have a local tuner that does all my tuning and I don't have too many complaints.

RWHP: Most people see about 315 - 330 with FBO Cammed 5.3. Sure some can make more or less, and you can make more with radical cams, ported heads, Intakes, ect... Once you start adding power your 60e is on borrowed time so keep that in mind when you step up to the plate with power mods! Its no longer a matter of if it will grenade itself, but when its going to grenade itself

IMO measuring hp on a dyno is just a d!ck swinging competition. The dyno is a tuning device! dont worry about power numbers as much as track times. I have seen 400 hp cars runs 12s and I have seen 800 hp cars run 12s.

FlowmasterMufflers

Your Super 44 muffler is not restricting exhaust flow. Flowmaster's chambered muffler design helps to scavenge, or accelerate, exhaust pulses into the muffler and out of the tailpipe, increasing efficiency.

bpipe95

I give ya credit man... No matter how many people hate flow masters on here (myself included) you still stay positive.

726.0chevelle

iTrader: (17)

First off there's nothing choking your setup down. People love pissing matches on mufflers but you probably wouldn't notice a difference between two in a mild motor. I would guess 375+ crank hp

danny23

Thanks for the info guys I just what to get the most of this engine and cam and the headers I will do a dyno buy I need yo find some close to naperville illinois.
around how much do a dyno cost?
but first I need to install a circle d and I my switch to a 3.73 gears not sure maybe heads too but this is a bagged truck im not gonna go to tge track but I do want the truck to be at is best next project will be a ls1 ls2 with cam or something bigger for sure this engine I got it realky cheap 300 with 90k engine look Healty I think lol