Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
BORLA
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Engine | Drivetrain | Powertrain Technical Discussions > Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons


Reply
 
Thread Tools
Old 09-10-2011, 03:10 PM   #1
Pollock
LS3 M6
 
Pollock's Avatar
 
Drives: 2011 2SS/RS
Join Date: Nov 2010
Location: Bloomington, IN
Posts: 553
Do Ported heads really help any?

From looking at peoples sigs who have cams... Lets say for example the texas speed 231/236 cam seems to make 480 rwhp with or without ported heads.

So do the ported heads really help? Or are you netting 5 to 10 rwhp for 900 bucks?
__________________
JRE 470 RWHP Cam, UD pulley, Kooks 1 7/8 Headers w/high flow cats, PCV catch can, Black CAI, ADM racing Scoop, Flowmaster AT Cat Back, VMax TB, BMR Trailing Arms
Pollock is offline   Reply With Quote
Old 09-10-2011, 03:23 PM   #2
Parag

 
Drives: 2010 camaro 2SS LS3
Join Date: Aug 2011
Location: Denver
Posts: 1,335
They will get you 5-10 alone but they improve the eficeincy of the cam and combined is the added power, with a cam they will get you 15-20
Parag is offline   Reply With Quote
Old 09-10-2011, 04:24 PM   #3
blk5genss
 
blk5genss's Avatar
 
Drives: 2010 Camaro 1SS/RS
Join Date: Jan 2011
Location: San Anonio, Texas
Posts: 574
Try looking up Darin Morgan on here he is cheaper and I believe does a better job porting the stock heads than the others on the market. Once you get to this level of mods power enhancements won't come cheap and the gains will be smaller bc the big gains have been made with the other bolt ons!! Gotta pay to play!!!
__________________
TSP Cam 231/236 112 LSA,TSP UD,Fast 102 w/Ported TB,AirAid CAI,1 7/8 catted Stainless Power LT,3 IN MBRP 3 in Exhaust/180*,Spohn LTA's,Toe Links, Drag Bar,Diff bushings,Hurst shifter,Hendrix/DSS 1400HP Axles,Nitto NT555R's,Lethal Performance Custon Tune 480 RWHP 454 RWTQ!! Best run so far is 11.94@121 LPE 3.91's Coming soon NW 102, and DSS DS, then car should be complete!!!
blk5genss is offline   Reply With Quote
Old 09-10-2011, 08:04 PM   #4
MikeOD

 
Drives: 2010 M6 2SS
Join Date: Mar 2011
Location: South Windsor, CT
Posts: 1,205
You do have to understand...our 6.2 liter engines...are not a LOT bigger than older small blocks that guys have been playing with for years, but our LS3 heads, bone stock already out flow a LOT of older ported heads...GM castings as well as aftermarket.

There are people who can do an excellent job porting these heads, and you will gain a good amount of power...but you need to find the right people...there are a lot of them who aren't really doing much other than smoothing out the "as cast" walls without changing port/chamber geometry at all.
__________________

2010 Camaro SS M6. Heads/Cam/Intake/Headers/Exhaust/Suspension
MikeOD is offline   Reply With Quote
Old 09-10-2011, 08:07 PM   #5
DietCoke
Slow Turtle
 
DietCoke's Avatar
 
Drives: 2011 1SS
Join Date: Jun 2011
Location: Manhattan, KS
Posts: 1,135
Send a message via AIM to DietCoke
The stock ports are already so big, the gains are really realized on larger motors that benefit from more flow, versus port velocity.
DietCoke is offline   Reply With Quote
Old 09-10-2011, 08:57 PM   #6
briancb1
 
briancb1's Avatar
 
Drives: C6 Z06
Join Date: Nov 2010
Location: Houston TX
Posts: 109
My TEA LS3 heads and the others I've seen do not increase the CSA to affect velocity. The porting on LS3 heads is typically minimal than say ported 243 heads. Majority of the porting is just narrowing/smoothing the valve guide boss and blending the bowl to a 5 angle valve job.

You will pick up little power if its a stock motor.
briancb1 is offline   Reply With Quote
Old 09-11-2011, 04:58 AM   #7
DietCoke
Slow Turtle
 
DietCoke's Avatar
 
Drives: 2011 1SS
Join Date: Jun 2011
Location: Manhattan, KS
Posts: 1,135
Send a message via AIM to DietCoke
They do increase CSA, by the nature of porting itself, they have to, even if its only minimal. On a stock cubed motor, good CNC heads are still worth around 20-25hp.
DietCoke is offline   Reply With Quote
Old 09-11-2011, 06:15 AM   #8
FTI-EDC
The stick man
 
FTI-EDC's Avatar
 
Drives: 2004 GTO - C5 'vert - SRX
Join Date: Jul 2006
Location: In the new shop... working 24/7
Posts: 151
Quote:
Originally Posted by MikeOD View Post
There are people who can do an excellent job porting these heads, and you will gain a good amount of power...but you need to find the right people...there are a lot of them who aren't really doing much other than smoothing out the "as cast" walls without changing port/chamber geometry at all.
X2
__________________

PONY WARS


FTI-EDC is offline   Reply With Quote
Old 09-11-2011, 10:15 AM   #9
blk5genss
 
blk5genss's Avatar
 
Drives: 2010 Camaro 1SS/RS
Join Date: Jan 2011
Location: San Anonio, Texas
Posts: 574
So Ed can you pm me a recommendation on what to do? With 480/453 (m6) to the wheels @ 3920 with me in it and a 1/4 tank of gas stock gears and drag radials will I ever see 11's with this car? Or do I need gears and ported heads?
__________________
TSP Cam 231/236 112 LSA,TSP UD,Fast 102 w/Ported TB,AirAid CAI,1 7/8 catted Stainless Power LT,3 IN MBRP 3 in Exhaust/180*,Spohn LTA's,Toe Links, Drag Bar,Diff bushings,Hurst shifter,Hendrix/DSS 1400HP Axles,Nitto NT555R's,Lethal Performance Custon Tune 480 RWHP 454 RWTQ!! Best run so far is 11.94@121 LPE 3.91's Coming soon NW 102, and DSS DS, then car should be complete!!!
blk5genss is offline   Reply With Quote
Old 09-11-2011, 10:57 AM   #10
SC2150
Account Suspended
 
Drives: 2012 Camaro RS, RX supercharged
Join Date: Dec 2009
Location: Bradenton, FL
Posts: 6,069
Are you a A6 or a manual trans? If an A6 just the correct torque converter will pick up .5-.7 sec in the 1/4 mile depending on traction.
SC2150 is offline   Reply With Quote
Old 09-11-2011, 01:07 PM   #11
Pollock
LS3 M6
 
Pollock's Avatar
 
Drives: 2011 2SS/RS
Join Date: Nov 2010
Location: Bloomington, IN
Posts: 553
Quote:
Originally Posted by SC2150 View Post
Are you a A6 or a manual trans? If an A6 just the correct torque converter will pick up .5-.7 sec in the 1/4 mile depending on traction.

LS3 manual
__________________
JRE 470 RWHP Cam, UD pulley, Kooks 1 7/8 Headers w/high flow cats, PCV catch can, Black CAI, ADM racing Scoop, Flowmaster AT Cat Back, VMax TB, BMR Trailing Arms
Pollock is offline   Reply With Quote
Old 09-11-2011, 01:46 PM   #12
BLACK10


 
BLACK10's Avatar
 
Drives: 2010 CAMARO. 10.04@133mph, 1.4 60'
Join Date: Jul 2009
Location: Lafayette, Louisiana
Posts: 4,585
you should be in the 11's with a good launch and drag radials
BLACK10 is offline   Reply With Quote
Old 09-11-2011, 02:29 PM   #13
Pollock
LS3 M6
 
Pollock's Avatar
 
Drives: 2011 2SS/RS
Join Date: Nov 2010
Location: Bloomington, IN
Posts: 553
Quote:
Originally Posted by BLACK10 View Post
you should be in the 11's with a good launch and drag radials

Who me or someone else?
__________________
JRE 470 RWHP Cam, UD pulley, Kooks 1 7/8 Headers w/high flow cats, PCV catch can, Black CAI, ADM racing Scoop, Flowmaster AT Cat Back, VMax TB, BMR Trailing Arms
Pollock is offline   Reply With Quote
Old 09-11-2011, 02:46 PM   #14
briancb1
 
briancb1's Avatar
 
Drives: C6 Z06
Join Date: Nov 2010
Location: Houston TX
Posts: 109
Quote:
Originally Posted by DietCoke View Post
They do increase CSA, by the nature of porting itself, they have to, even if its only minimal. On a stock cubed motor, good CNC heads are still worth around 20-25hp.

Why do they "have to"? Some porters will add just as much or more material than they remove (Ford Cleavland heads for example).

Check out all the OE cnc'ed LS3 test put up by Hot Rod on a 700+hp motor. All heads (except the MAST heads) were with 1% power of each other (well within the range of the dyno's variances from pull to pull). So from that standpoint, take your pick for OE ported heads.
briancb1 is offline   Reply With Quote
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Who has LSX-427 Heads calbert1999 Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 6 08-06-2011 05:22 PM
Heads and Cam installed in A6 CosmicBrut Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 44 06-09-2011 10:27 AM
Ported Heads & Options for LS3 calbert1999 Tuning / Diagnostics -- engine and transmission 32 02-24-2011 05:18 PM
What HP/TQ are stock LS3 heads good for? blake-b Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 1 01-02-2011 06:47 PM


All times are GMT -5. The time now is 12:36 AM.


Powered by vBulletin® Version 3.8.9 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.