2013 SS are we now at 430HP? - Page 4 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

L36L72LS3 · 10-03-2012, 12:54 AM

Quote:

Originally Posted by MR 45TH

426...430 does it really matter?

Yup....unless you are running Pro Stock, you ain't never going to see the difference.

SSGUNNER · 10-03-2012, 01:52 AM

Interesting...

MLL67RSSS · 10-03-2012, 08:11 AM

IN all likelihood none of the videos you'll see on youtube are CAFE certified manufacturers tests done at the manufacturers facility with independent SAE engineers present. Photography/cameras, with very few exceptions, is strictly forbidden. As I recall you aren't even allowed to take cameras on Corvette plant tours.

The Captain · 07-19-2015, 09:14 AM

Actually here is an article that bids farewell to the outgoing 5th Gen 1LE with a really nice review of the car. But more interestingly is that it also briefly discusses the optional performance exhaust (NPP option) as adding 6 HP to the currently rated 426 bringing it up to 432 HP. So any recovered HP from switching from a hydraulic to electric power steering pump would be a few above the 432 the article cites. So the LS3 in the 1LE produces enough to possibly give an extra 5 mph or more in a race.

Here is a link to the article.

http://www.torquenews.com/106/2015-c...arewell-legend

MrChrisLS3 · 07-19-2015, 10:19 AM

Interesting discussion. I would guess that it is very possible that eliminating the hydraulic steering pump would free up some resistance. thus increasing flywheel output. I would wager that GM simply did not retest the engine under S.A.E. criteria, thus did not change the number.

The NPP exhaust could be the same story, as I believe it was introduced on the Corvette prior to the Camaro. I'm not sure if this exhausts changes the catalytic converter set up or not. The ability of exhaust to increase engine horsepower relies upon it's ability to increase scavaging of intake air. If this exhaust allows the exiting exhaust air to pull in more intake air during valve overlap, there's your increase. However, if there is a difference between the Corvette exhaust system, including cats, this scavanging effect may not be as much in the Camaro, hence no advertised HP increase?

Just some thoughts based upon my current understanding, and as always, I reserve the right to be wrong.

10-03-2012, 01:52 AM	#44
SSGUNNER Chu no guat a hasa is? Drives: 14 Jeep G Cherokee Overland HEMI Join Date: Jun 2011 Location: Some where in So Cal Posts: 4,272	Interesting... __________________ 11 2SS/RSL99No Longer Stock (Sold) 6/19/14:AAC Plasma DRL's \| Plug n play harness \| Elite CC \| Tint: 35% & 5% \| LED Dome light \| Show-N-Go Plate Holder \| Flowmaster AT \| C.A.I. Intake \| VMAX CNC Spiral Ported TB \| Husky Splash Guards

07-19-2015, 09:14 AM	#46
The Captain Drives: No Car Join Date: Mar 2015 Location: No location Posts: 43	Actually here is an article that bids farewell to the outgoing 5th Gen 1LE with a really nice review of the car. But more interestingly is that it also briefly discusses the optional performance exhaust (NPP option) as adding 6 HP to the currently rated 426 bringing it up to 432 HP. So any recovered HP from switching from a hydraulic to electric power steering pump would be a few above the 432 the article cites. So the LS3 in the 1LE produces enough to possibly give an extra 5 mph or more in a race. Here is a link to the article. http://www.torquenews.com/106/2015-c...arewell-legend Last edited by The Captain; 07-19-2015 at 09:15 AM. Reason: added a link

10-03-2012, 08:11 AM	#45
MLL67RSSS Account Suspended Drives: car Join Date: May 2008 Location: location Posts: 1,569	IN all likelihood none of the videos you'll see on youtube are CAFE certified manufacturers tests done at the manufacturers facility with independent SAE engineers present. Photography/cameras, with very few exceptions, is strictly forbidden. As I recall you aren't even allowed to take cameras on Corvette plant tours.

07-19-2015, 10:19 AM	#47
MrChrisLS3 Drives: 2018 1SS M6 Join Date: Nov 2014 Location: Houston Posts: 2,617	Interesting discussion. I would guess that it is very possible that eliminating the hydraulic steering pump would free up some resistance. thus increasing flywheel output. I would wager that GM simply did not retest the engine under S.A.E. criteria, thus did not change the number. The NPP exhaust could be the same story, as I believe it was introduced on the Corvette prior to the Camaro. I'm not sure if this exhausts changes the catalytic converter set up or not. The ability of exhaust to increase engine horsepower relies upon it's ability to increase scavaging of intake air. If this exhaust allows the exiting exhaust air to pull in more intake air during valve overlap, there's your increase. However, if there is a difference between the Corvette exhaust system, including cats, this scavanging effect may not be as much in the Camaro, hence no advertised HP increase? Just some thoughts based upon my current understanding, and as always, I reserve the right to be wrong.