Stock LS3 Dyno - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Monte · 01-21-2010, 03:42 PM

Went to the shop I used to work at and hit the dyno with 550miles on the car. I saw 348Hp, 355 Ft/lbs on two runs back to back (+/- a few ponies). It is a Land and Sea dyno that gives VERY accurate numbers that always match the physics when the car goes to the track.

nhra stocker · 01-21-2010, 05:34 PM

Im still trying to figure out the whole chassis dyno thing. From the sound of things ive gathered Dyno jet is the most accurate due to less variables and being an inertia type? Others such as the Mustang and Dyna are more for tuning purposes? I wish there was a sticky on the LS-3s for dyno pulls , but thumbing back thru Ive seen anything from 340s up to a 384 rwhp! Im sure weather conditions play a factor too , how the car was broke in and if it was corrected or not. Does anyone have some good info on this?

2SSRSPILOT · 01-21-2010, 05:59 PM

How does GM get away with advertising 426 hp but it never dyno,s at that ???

irvinecamaro · 01-21-2010, 06:02 PM

Quote:

Originally Posted by 2SSRSPILOT

How does GM get away with advertising 426 hp but it never dyno,s at that ???

I believe the advertised 426 hp is at the fly wheel not at the rear wheels.

BackinBlackSS/RS · 01-21-2010, 06:10 PM

Quote:

Originally Posted by 2SSRSPILOT

How does GM get away with advertising 426 hp but it never dyno,s at that ???

All manufacturers give hp rating at the crank.

nhra stocker · 01-21-2010, 06:16 PM

Quote:

Originally Posted by 2SSRSPILOT

How does GM get away with advertising 426 hp but it never dyno,s at that ???

Thats at the flywheel and theres 15%-18% loss thru the drive train. Thats how you get the rwhp (rear wheel horse power).

Monte · 01-21-2010, 08:57 PM

Dynojets usually give the most unrealistically high numbers, and are the easiest to fudge the results. Without going into a long rant that has been gone over 10000x, do some research and you'll find some answers. NO dyno is perfect and they all can read wrong if lyed to or programmed improperly, but some are better than others.

01-21-2010, 03:42 PM	#1
Monte Drives: '88 Monte Carlo SS, '10 Camaro SS Join Date: Jan 2010 Location: RI Posts: 224	Stock LS3 Dyno Went to the shop I used to work at and hit the dyno with 550miles on the car. I saw 348Hp, 355 Ft/lbs on two runs back to back (+/- a few ponies). It is a Land and Sea dyno that gives VERY accurate numbers that always match the physics when the car goes to the track.

01-21-2010, 05:34 PM	#2
nhra stocker Drives: 69,10 camaro 71 chevelle Join Date: Jul 2009 Location: Shelbyville, IL Posts: 722 View My Garage	Im still trying to figure out the whole chassis dyno thing. From the sound of things ive gathered Dyno jet is the most accurate due to less variables and being an inertia type? Others such as the Mustang and Dyna are more for tuning purposes? I wish there was a sticky on the LS-3s for dyno pulls , but thumbing back thru Ive seen anything from 340s up to a 384 rwhp! Im sure weather conditions play a factor too , how the car was broke in and if it was corrected or not. Does anyone have some good info on this? __________________ 2010 Camaro SS RS M6 Bone stock 12.58 at 110mph http://www.camaro5.com/forums/showpo...&postcount=263 1971 Chevelle SS 454 365hp NHRA C/SA 10.73 at 122 1969 Camaro (427 ZL-1 clone) M-22 being built 1982 Siverado 4x4 454 Mud truck stock class 3.66 sec in 150' of mud

01-21-2010, 08:57 PM	#7
Monte Drives: '88 Monte Carlo SS, '10 Camaro SS Join Date: Jan 2010 Location: RI Posts: 224	Dynojets usually give the most unrealistically high numbers, and are the easiest to fudge the results. Without going into a long rant that has been gone over 10000x, do some research and you'll find some answers. NO dyno is perfect and they all can read wrong if lyed to or programmed improperly, but some are better than others. __________________ -Chris '10 Camaro SS '88 Monte Carlo SS

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01-21-2010, 05:59 PM	#3
2SSRSPILOT Drives: 2010 2 SS RS IMP.BL.MET. GRND.EFCT. Join Date: Dec 2009 Location: Gansevoort, NY Posts: 14	How does GM get away with advertising 426 hp but it never dyno,s at that ???