NA Carb 5.3 LS To The Dyno

[skipdownstairs]

So we ended up getting one of those Eldebrock intakes and msd 6010 boxes with map sensor. Going to throw this thing on the dyno and see what she makes this weekend :fingersx: Any guesses??? Tooley thinks 1.5 hp per cubic inch with a good flowing head but it sounds a little high to me.

Heres the specs

05 Silverado 5.3 ls
Stock Crank
ARP Damper with Tom Fangman Timing Pointer
Stock Rods ARP bolts
Speed Pro Pistons & rings
Brian Tooley Stage IV camshaft
Stock lifters
Comp Cams 5/16 push rods
Summit rocker arm trunnion upgrade
Brian Tooley springs with titanium retainers
ARP head studs
LS9 head gaskets
Tom Fangman Hand Ported 706 Heads
Eldebrock Victor Jr. Intake
750 Quick Fuel carb
Truck Coils w/ MSD Wires & BR7ES NGK Plugs

[AutoMods]

is that your #2 motor from this year? your most recent #3 motor is fully forged right?

[slow ride]

How big is the cam and LSA ICL numbers? How good are the heads? Hard to say without knowing those :)

[Snoclo]

I'll guess 446, the rpm ????

[sLoWnStEaDy]

from Tooley "Cam specs are 235/242 .621"/.592" 111+3"

Without knowing fuel type, C.R. (assuming 9.7~), or valve size (assume stock 1.9/1.55)... I will guess peak of 430~ @ 5300~

[slow ride]

That's a large hydraulic roller cam for a 5.3 and the victor jr will hurt the bottom end, but pick up on top. I'd guess if you really get the compression up and the heads flow decent it might mike 500 or so on the engine dyno.

[Mike@Salkowski-Motorsport]

I'm sure it will do 500

[Mike@Salkowski-Motorsport]

:D

[skipdownstairs]

The verdict is in!! She made more than I thought on 92 octane and 34 degrees timing not bad for a 325 cubic inch engine.

http://m.youtube.com/watch?v=MfzBp4kk_RU

[Mike@Salkowski-Motorsport]

Wrong link brotha lol

[Snoclo]

I'm confused, NA? Oh well what was the number.

[skipdownstairs]

Damn phones heres the real deal.....

http://www.youtube.com/watch?v=8LaY-9HRJoE

[skipdownstairs]

I'm confused, NA? Oh well what was the number.

Bet you were wonderin what kinda shit I was pullin when you saw Salkowski and a blower on it lol. sorry guys for the wrong vid I was tryn to update the forum while I was out to supper with the wife, you all know how that goes over.

[Mike@Salkowski-Motorsport]

Lol. Nice!

[BGjohnson]

That's way more than I would have thought, but I have no clue on what the heads flow. But 7600 RPM is spicy!

[slow ride]

Boy I'm good;)

[sLoWnStEaDy]

Well, my 430 @ 5300~ was almost dead on... just not as the peak, at aaallll LOL

[AutoMods]

Well, my 430 @ 5300~ was almost dead on... just not as the peak, at aaallll LOL


the motor peaked @ 7k ..... your still an LS grasshopper

[sLoWnStEaDy]

I seen that... ;-) never claimed to have any amount of LS knowledge, but still my guess was dead nuts on, just not as the peak! LOL

[skipdownstairs]

Not to bad for a budget build, here are the flow numbers on the 706 castings
and yes Ryan this was the 5.3 we ran all last summer
The customer will be running this in a s10 pickup with a 150 shot

.100 69.5 .100 43.9
.200 142.0 .200 90.8
.300 187.5 .300 122.0
.400 237.9 .400 146.9
.500 270.7 .500 172.4
.550 275.6 .600 192.4
.600 260.1 .700 200.9
.700 264.3 .800 204.3

[slow ride]

Nothing really crazy about the heads, but it works out really well Andy. Perfect little nitrous enigne on the cheap.

[skipdownstairs]

Thanks man!