interesting results from 3 LS3 cam swaps



interesting results from 3 LS3 cam swaps

Postby grumpyvette » May 30th, 2014, 6:50 pm

link to article
http://www.superchevy.com/how-to/engine ... boomerang/

http://www.gmhorsepower.com/LS3-430HP-crate-motor.php

http://www.jegs.com/p/Chevrolet-Perform ... 5/10002/-1

http://www.jegs.com/p/Chevrolet-Perform ... 2/10002/-1

Cam 1: Stock LS3
Lift: .551 in/ .525 ex
Duration @ .050: 204 in/211 ex
LSA: 117
Idle vacuum: 20.3 in-Hg
PV Intake: .150+
PV Ex: .150+
Cranking Compression: 205 psi
Peak Power: 496 hp @ 5,800 rpm
Peak Torque: 491 lb-ft @ 4,700 rpm
Ave HP (3,000-6,500): 408.9 hp
Ave TQ (3,000-6,500): 452.4 lb-ft
Tq @ 4,000 RPM: 461 lb-ft
Image


Cam 2: 224 Cam
Lift: .624 in/ .590 ex
Duration @ .050: 224 in/232 ex
LSA: 113
Idle vacuum: 20.3 in-Hg
PV Intake: .117
PV Ex: .150
Cranking Compression: 205 psi
Peak Power: 547 hp @ 6,300 rpm
Peak Torque: 514 lb-ft @ 5,100 rpm
Ave HP (3,000-6,500): 37.6 hp
Ave TQ (3,000-6,500):482.6 lb-ft
Tq @ 4,000 RPM: 480 lb-ft
Image


Cam 3: 231 Cam
Lift: .617 in/ .624 ex
Duration @ .050: 231 in/239 ex
LSA: 113
Idle vacuum: 17.1 in-Hg
PV Intake: .041
PV Ex: .098
Cranking compression: 200 psi
Peak Power: 566 hp @ 6,400 rpm
Peak Torque: 517 lb-ft @ 5,200 rpm
Ave HP (3,000-6,500): 441.4 hp
Ave TQ (3,000-6,500): 485.4 lb-ft
Tq @ 4,000 RPM: 477 lb-ft
Image

Cam 4: 235 Cam
Lift: .647in/.612ex
Duration @ .050: 235 in/244 ex
LSA: 111 degrees
Idle vacuum: 13.7 in-Hg
PV Intake: .003
PV Ex: .075
Peak Power: 573 hp @ 6,400 rpm
Peak Torque: 526 lb-ft @ 5,200 rpm
Ave HP (3,000-6,500): 449.4 hp
Ave TQ (3,000-6,500): 494.5 lb-ft
Tq @ 4,000 RPM: 484 lb-ft

Image
IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!
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Re: interesting results from 3 LS3 cam swaps

Postby philly » May 30th, 2014, 8:41 pm

i like when magazines input average torque in their figures, because thats whats really gonna win races and feel fun on the street.
-phil

There's never enough money to build it right, but there's always enough to build it twice!
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Re: interesting results from 3 LS3 cam swaps

Postby grumpyvette » March 11th, 2015, 4:22 pm

IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!
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Re: interesting results from 3 LS3 cam swaps

Postby 87vette81big » March 11th, 2015, 6:50 pm

grumpyvette wrote:http://www.hotrod.com/how-to/engine/1503-four-ways-to-get-your-ls-engine-600-horsepower/

four routes to LS with 600 hp

Only limited to current available funds Phil. $.

And rest of Driveline build costs.$.
Trans build cost & Rear differential build costs.$.

Still happy with my choice.
Pontiac 455.
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Re: interesting results from 3 LS3 cam swaps

Postby 87vette81big » March 11th, 2015, 6:54 pm

I talked to a friend last night on the phone in Jersey Phil.
He called for camshaft recommendations.
434 sbc Racecar detuned for Hotrod Power Tour Nationwide run.
Think LSX Tech & Hellcats & SRT Viper major motivator.
Was asked why I abandoned the 1987 C4 Vert Racecar for 2015 plan.
$ is the factor I stated.
Just can't beat Poncho power for me.
What I have its the Best logical choice.
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