Added NPP Exhaust to 1LE Dyno Comparison - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

gajagfan · 09-03-2013, 03:28 PM

Quote:

Originally Posted by Camaro_Corvette

I guess that's better than what you have said in the past. Glad we can finally put this to rest. Every little bit counts...

Seems like it adds 9 to me....

Adding 9 hp past the peak HP and shift point is like pissing in a dark suit....no one really notices. I still feel that is you are not buying it for the sound, its not a good value at all. I have not changed my opinion, just maybe stated it in a more politically correct way! To each his own.

PYROLYSIS · 09-03-2013, 03:56 PM

Quote:

Originally Posted by gajagfan

Adding 9 hp past the peak HP and shift point is like pissing in a dark suit....no one really notices. I still feel that is you are not buying it for the sound, its not a good value at all. I have not changed my opinion, just maybe stated it in a more politically correct way! To each his own.

Nobody expected it to add 60 HP.

Bad70supreme · 09-03-2013, 03:57 PM

Quote:

Originally Posted by gajagfan

When you say sucks, are you referring to performance with stock HP, performance with modified HP, or sound?

When I say it sucks I mean it sucks! The sound sucks, there is none! It performs on a stock or lightly modded car fine but that's about it. What else is there to say about it.

Southern Comfort · 09-03-2013, 03:59 PM

Quote:

Originally Posted by Anaconda

Did you get a chance to weigh it? Not sure if anyone has made a concrete difference in weight between the stock exhaust vs NPP. Just curious.

I see 6 lbs total lighter than stock.
That is the parts I took off weigh 6 more than what I put in.

Dropspeed · 09-03-2013, 04:01 PM

I purchased my NPP so I am able to control the noise level inside the cabin with a switch.....I also like the look of the 4 tips vs 2

-Matt

gajagfan · 09-03-2013, 04:05 PM

Quote:

Originally Posted by PYROLYSIS

Nobody expected it to add 60 HP.

Never said they did. My point is HP past the point you should shift the car at for max performance is not of much value. It was not a comment on quantity.

Bad70supreme · 09-03-2013, 04:50 PM

That's not past the shift point, you don't shift at peak you shift a few hundred past it. So that would be valuable to have that extra 10hp at the wheels in my eyes, my car peaks at 6400 but likes to be shifted at 6700 into 3rd for best trap speed! Before my cam I ran it right up to the rev limiter for my best times.

joelster · 09-03-2013, 07:00 PM

Changing the oil can have an effect on power output. You should have left it in there. Older oil will be slightly thinner and rob slightly less power versus fresh oil.

jksynergy · 09-03-2013, 07:08 PM

Thanks OP for posting. Interesting findings and makes my decision to order NPP for our 1LE a little more challenging.

Southern Comfort · 09-03-2013, 07:42 PM

Quote:

Originally Posted by joelster

Changing the oil can have an effect on power output. You should have left it in there. Older oil will be slightly thinner and rob slightly less power versus fresh oil.

Yes Sir - I agree, and posted it in the spirit of full disclosure.
But I wouldn't expect factory oil with 1300 miles would be significantly different from fresh oil with 50 miles. Assuming it were thinner, I would expect the new oil run to be lower power across the board, maybe worse at higher RPM.

Quote:

Originally Posted by jksynergy

Thanks OP for posting. Interesting findings and makes my decision to order NPP for our 1LE a little more challenging.

Unless you change the manifolds and cats I wouldn't expect much of power difference within the normal operating ranges. I wanted the NPP style and was pleasantly surprised with the NPP sound.

WHAMMO · 09-03-2013, 08:52 PM

I still dont understand the complains about the NPP; installed from factory, cheap, better looking, warranty, free flowing that can support huge HP, great sound and lighter. Show me what other catback adds for HP versus for the price. Go ahead, buy a damn 1300$ catback and stop complaining.

My NPP sounds wicked with high flow cats(2x louder!!). With headers, it would sound absolutly crazy and loud, but I would have the ability to control the sound. I mean its a win win.

Great post OP, congrats! The NPP does have a very unique sound and it will hold a great value, like the old SLP dual dual in the 4th Gen.

Fraxum · 09-03-2013, 08:57 PM

Quote:

Originally Posted by Dropspeed

I purchased my NPP so I am able to control the noise level inside the cabin with a switch.....I also like the lok of the 4 tips vs 2

-Matt

+1

Reasons to like NPP especially on the 1LE:

It's a little lighter.
It adds a little bit of power.
You can control the exhaust noise with your garage door opener or just a fuse pull.
Quad tips.
It looks better without the big stock cans.
When you start your car up people look at your car. (If you like that.)
It sounds way better!!!!

NPP FTW!

To me much more worth it than RS.

Thank you OP for putting numbers on this debate.

VR Baron · 09-03-2013, 09:23 PM

Interesting. Wonder if weather the same on second run more of a difference would be seen, or just good old dyno differences on a different day.Also people on this site say catbacks make no hp over stock and this one cant be better then those, so maybe some power also from catbacks other then peak? Seen axelback graphs do the same , power before and after peak but little at peak. All food for thought

b4z · 09-03-2013, 10:08 PM

NPP seems great to me. It adds power,which I always knew it would but I don't understand why Chevy has not taken the time to quote the actual hp of a Camaro with NPP and also why why they haven't factored in the hp gain from the electric steering. It's pretty clear to me that a 2013-2014 SS w/ NPP probably has 441 hp or more at the crank. 10 or so for NPp and 5 for the electric steering.

09-03-2013, 04:01 PM	#19
Dropspeed 2013 Camaro SS1LECTSVZ28 Drives: 2013 AGM 1SS/1LE Join Date: Nov 2012 Location: Suburbs of Detroit, MI Posts: 2,440	I purchased my NPP so I am able to control the noise level inside the cabin with a switch.....I also like the look of the 4 tips vs 2 -Matt __________________ My 1LE Build/Journal : http://www.camaro5.com/forums/showthread.php?t=351990 Last edited by Dropspeed; 09-04-2013 at 10:28 AM.

09-03-2013, 04:50 PM	#21
Bad70supreme Drives: 2010 aqua blue SS/RS M6 Join Date: Feb 2010 Location: plainfield, IL Posts: 2,706	That's not past the shift point, you don't shift at peak you shift a few hundred past it. So that would be valuable to have that extra 10hp at the wheels in my eyes, my car peaks at 6400 but likes to be shifted at 6700 into 3rd for best trap speed! Before my cam I ran it right up to the rev limiter for my best times. __________________ 10.91 at 122 H/C stock block N/A

09-03-2013, 07:00 PM	#22
joelster Drives: '94 Z28+ '15 Z/28 Join Date: Jun 2009 Location: Cheektowaga, NY Posts: 1,280	Changing the oil can have an effect on power output. You should have left it in there. Older oil will be slightly thinner and rob slightly less power versus fresh oil. __________________ 1973 Mach 1, 351C cruiser '15 Z/28 Red Hot, A/C 1980 Z28- resto-mod project 1979 Y84 Trans Am 1986 IROC-Z

09-03-2013, 07:08 PM	#23
jksynergy Drives: 11 SW SYNERGY SERIES/14 1SS 1LE Join Date: May 2012 Location: Missouri Posts: 1,223	Thanks OP for posting. Interesting findings and makes my decision to order NPP for our 1LE a little more challenging. __________________ 2011 Summit White Synergy Series Edition, the hot innocent woman named Ava that we show off around town, dressed in white complete with angel's wings. Sold, but never forgotten. 2014 1SS 1LE. Bama, sporting Red Rock Metallic demon's horns, when we are ready to get naughty and open a can of whoopass! Airaid, Spectre, Xpel,Bowler shifter Peddars, UMI, Ult Perf. Diode Dynamics, JRE Tune, XS Power battery, Hooker Headers Blackheart exhaust,Powerbrake InstaGram & Twitter: @jlouie62 FB: hangtimeracing

09-03-2013, 08:52 PM	#25
WHAMMO Drives: 13' 1LE Join Date: Apr 2012 Location: Canada Posts: 2,641	I still dont understand the complains about the NPP; installed from factory, cheap, better looking, warranty, free flowing that can support huge HP, great sound and lighter. Show me what other catback adds for HP versus for the price. Go ahead, buy a damn 1300$ catback and stop complaining. My NPP sounds wicked with high flow cats(2x louder!!). With headers, it would sound absolutly crazy and loud, but I would have the ability to control the sound. I mean its a win win. Great post OP, congrats! The NPP does have a very unique sound and it will hold a great value, like the old SLP dual dual in the 4th Gen. __________________ 13' 1LE Old setup: TSP 231-236/Tick 660/.105 PR, UDP, SW LT 2'' & HFC, stock NPP & H pipe, VR-DRX CAI, air scoop, Goertz1 manifold, 102mm BBK, 26" Toyo DRs, Forgestars R17x10 & F18x8, rear seat delete, remote Pat G tune Autocal, 7400 limiter, Spec Mini Twin. 91oct. 11.90@122.3, 0-60ft 2.0 / 11.99@123.6, 0-60ft 2.1 DA+819 ...519RWHP SAE Solid roller SBE LS3, FED, LLSR, 91oct, 605rwhp N/A. Tuned by Pat G. Build by me.

09-03-2013, 09:23 PM	#27
VR Baron SoCal Camaro5 Race Team Drives: 2021 Shadow Grey Camaro 2SS 1LE Join Date: Mar 2010 Location: SO CAL Posts: 14,288	Interesting. Wonder if weather the same on second run more of a difference would be seen, or just good old dyno differences on a different day.Also people on this site say catbacks make no hp over stock and this one cant be better then those, so maybe some power also from catbacks other then peak? Seen axelback graphs do the same , power before and after peak but little at peak. All food for thought

09-03-2013, 10:08 PM	#28
b4z Drives: '06 Pontiac GTO M6, '19 F150 2.7TT Join Date: Nov 2008 Location: Charleston, SC Posts: 1,425	NPP seems great to me. It adds power,which I always knew it would but I don't understand why Chevy has not taken the time to quote the actual hp of a Camaro with NPP and also why why they haven't factored in the hp gain from the electric steering. It's pretty clear to me that a 2013-2014 SS w/ NPP probably has 441 hp or more at the crank. 10 or so for NPp and 5 for the electric steering.