2010 Camaro LS-3 On Engine Dyno @ Texas Speed - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Jason 98 TA · 08-20-2009, 11:59 AM

As most of you guys know we spend tons of R&D time on LS engines. The LS3 is no different! We currently have a brand new LS3 Long Block on the engine dyno for camshaft development & cylinder head development! The advantage to using the engine dyno for testing is we can test individual camshafts next each other in search for the best possible power for certain rpm ranges.

Here's a quick pic of the LS3 waiting on it's first camshaft swap!

We will begin testing different camshafts later today! Look for tons of results coming in the next few days!!

Here's the Basline dyno #'s from the LS3 & the LS3 vs the LS1!!

Codyatart · 08-20-2009, 12:58 PM

Keep us posted!!!

Kakashi · 08-20-2009, 03:50 PM

I *know* I shouldn't treat this as a simple "1+1=2" equation but...the temptation is too much

I'm going to play devil's advocate here

If the LS3 is putting ~486hp at the crank, and GM is under-rating the Camaro to 426.... hot damn that means the people that are showing 350-380rwhp are seeing a 28 to 21% reduction through the transmission instead of the 15-18% generally agreed one?

mr_desmo · 08-20-2009, 04:01 PM

Quote:

Originally Posted by Kakashi

I *know* I shouldn't treat this as a simple "1+1=2" equation but...the temptation is too much

I'm going to play devil's advocate here

If the LS3 is putting ~486hp at the crank, and GM is under-rating the Camaro to 426.... hot damn that means the people that are showing 350-380rwhp are seeing a 28 to 21% reduction through the transmission instead of the 15-18% generally agreed one?

My man you should look at the picture and see that they run open headers( without cats or any rest of exhaust system) and that they run open throttlebody (no filter, air box anything; just intake manifold) thats a bit less restriction than the average camaro ss, try running open headers on the street!

Now you texas speed your job look terrific, i want as much pics/news on all you do to ls3 and the n/a kit youll produce!

Jason 98 TA · 08-20-2009, 05:04 PM

Keep in mind with no accessories on the front of the motor it makes about 10-12 more hp!!

HaveBlue · 08-20-2009, 08:36 PM

Quote:

Originally Posted by Jason 98 TA

Keep in mind with no accessories on the front of the motor it makes about 10-12 more hp!!

Exactly. SAE HP numbers are now calculated with all accessories attached as it is in the vehicle. OE's can't use "raw flywheel" numbers anymore.

Doc · 08-20-2009, 10:29 PM

Those are nice looking headers! A really clean design. I take it that's your prototype for the Camaro?

ADM PERFORMANCE · 08-20-2009, 10:49 PM

Quote:

Originally Posted by HaveBlue

Exactly. SAE HP numbers are now calculated with all accessories attached as it is in the vehicle. OE's can't use "raw flywheel" numbers anymore.

That is how LPE did mine.

Andy

Jason 98 TA · 08-21-2009, 09:06 AM

Where were the power steering pumps & AC connections hooked up to?

For testing purposes I pulled the belt off of my 2010 camaro on the chassis dyno & it made just over 10hp difference.

The purpose of the engine dyno is to compare components side by side with no other changes. This allows us to have a better picture of exactly what the engine wants for each duration point we're working from. The result is camshafts that are proven performers.

Kakashi · 08-21-2009, 09:51 AM

Quote:

Originally Posted by mr_desmo

My man you should look at the picture and see that they run open headers( without cats or any rest of exhaust system) and that they run open throttlebody (no filter, air box anything; just intake manifold) thats a bit less restriction than the average camaro ss, try running open headers on the street!

Quote:

Originally Posted by Jason 98 TA

Keep in mind with no accessories on the front of the motor it makes about 10-12 more hp!!

Quote:

Originally Posted by HaveBlue

Exactly. SAE HP numbers are now calculated with all accessories attached as it is in the vehicle. OE's can't use "raw flywheel" numbers anymore.

I did see the picture, but my mind flooded with a river of questions on what were the parameters they (GM) used to reach the final 426. I knew 1+1 for this question wasn't 2!!!!

Thanks for clearing that up and for the info! That's good to know

08-20-2009, 11:59 AM	#1
Jason 98 TA Drives: Camaro Join Date: Apr 2009 Location: Texas Posts: 1,669	2010 Camaro LS-3 On Engine Dyno @ Texas Speed As most of you guys know we spend tons of R&D time on LS engines. The LS3 is no different! We currently have a brand new LS3 Long Block on the engine dyno for camshaft development & cylinder head development! The advantage to using the engine dyno for testing is we can test individual camshafts next each other in search for the best possible power for certain rpm ranges. Here's a quick pic of the LS3 waiting on it's first camshaft swap! We will begin testing different camshafts later today! Look for tons of results coming in the next few days!! Here's the Basline dyno #'s from the LS3 & the LS3 vs the LS1!!

08-20-2009, 10:29 PM	#7
Doc Dances With Mustangs Drives: 2010 1SS/RS MT Join Date: May 2009 Location: USA Posts: 3,819 View My Garage	Those are nice looking headers! A really clean design. I take it that's your prototype for the Camaro? __________________ Blue Angel is here!! 1SS/RS LS3 M6 IBM

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08-20-2009, 12:58 PM	#2
Codyatart Drives: 2011 Corvette ZR1 Join Date: Jul 2009 Location: Austin, Tx Posts: 12	Keep us posted!!!

08-20-2009, 03:50 PM	#3
Kakashi Drives: Camaro SS 2010 M6 Join Date: Jul 2009 Location: PR Posts: 117	I know I shouldn't treat this as a simple "1+1=2" equation but...the temptation is too much I'm going to play devil's advocate here If the LS3 is putting ~486hp at the crank, and GM is under-rating the Camaro to 426.... hot damn that means the people that are showing 350-380rwhp are seeing a 28 to 21% reduction through the transmission instead of the 15-18% generally agreed one?

08-20-2009, 05:04 PM	#5
Jason 98 TA Drives: Camaro Join Date: Apr 2009 Location: Texas Posts: 1,669	Keep in mind with no accessories on the front of the motor it makes about 10-12 more hp!!

08-21-2009, 09:06 AM	#9
Jason 98 TA Drives: Camaro Join Date: Apr 2009 Location: Texas Posts: 1,669	Where were the power steering pumps & AC connections hooked up to? For testing purposes I pulled the belt off of my 2010 camaro on the chassis dyno & it made just over 10hp difference. The purpose of the engine dyno is to compare components side by side with no other changes. This allows us to have a better picture of exactly what the engine wants for each duration point we're working from. The result is camshafts that are proven performers.