HEADS - Page 4 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

IMPERIALBLUE2SS · 09-25-2013, 06:41 AM

I maybe backing out of the heads as they seem to be an expensive mod that doesn't really net enough gains for the expense. Still will do cams an get it dyno tuned again afterwards. Really wanted to stay naturally aspirated but a supercharger seems more of a hp producer plus don't have to spin it up as high to make the power. Guess I'm gonna have a lot of overtime time in my immediate future!

thahemp · 09-25-2013, 11:48 AM

You can mill the heads to bump compression too. Just watch out. You're cutting into your PTV clearance for that cam down the road.

LS3 SS · 09-25-2013, 12:39 PM

Quote:

Originally Posted by sprayedv

Poor people buying heads lol..

LS3 heads are extremely good. Just a big waste of money. Why not spend that money on a progressive nitrous system or something that will actually net you more than 20whp for cuadruple digit $.

Not everyone wants to do the same thing to their vehicle that you "Recommend". If someone wants to spend their money on some heads, let them do it.

thahemp · 09-25-2013, 12:46 PM

Put me on that list. Nitrous would be a complete waste of time and money for me and my car. I would rather have heads and a big compression bump. Nothing wrong with nitrous... Just some of us don't live at the track.

LS3 SS · 09-25-2013, 12:48 PM

Quote:

Originally Posted by thahemp

Put me on that list. Nitrous would be a complete waste of time and money for me and my car. I would rather have heads and a big compression bump. Nothing wrong with nitrous... Just some of us don't live at the track.

I would do a N/A 376 with H/C/I or a Forced induction setup before I put a bottle of nitrous on my car. Spraying nitrous is not my style, and never will be.

mdsolutions · 09-25-2013, 05:51 PM

Quote:

Originally Posted by mdsolutions

Had to get different length push rods today, so the dyno will have to wait until tomorrow. Can anyone show me numbers where folks have only gained 20 hp from PRC heads. I have never been able to find anyone posting numbers of the gains or lack of gains from heads. They always say they will but they never do. I will post mine as soon as I know, hopefully more than 20.

Well the car with the p.r.c heads:

469 baseline 491 after heads and tune. I was hoping for a little more but I am not disappointed. My car n/a is putting down more power than a stock ZL1, not much but a little.

LS3 SS · 09-25-2013, 06:02 PM

Quote:

Originally Posted by mdsolutions

Well the car with the p.r.c heads:

469 baseline 491 after heads and tune. I was hoping for a little more but I am not disappointed. My car n/a is putting down more power than a stock ZL1, not much but a little.

What was done to the PRC 255's? Were they milled? How much were you expecting? 490-500 rwhp is what you honestly should expect from a Cammed /heads bolt on LS3.

mdsolutions · 09-25-2013, 06:31 PM

Quote:

Originally Posted by LS3 SS

What was done to the PRC 255's? Were they milled? How much were you expecting? 490-500 rwhp is what you honestly should expect from a Cammed /heads bolt on LS3.

Off the shelf 255 p.r.c. heads that were c.n.c ported. No milling, with my cam I do not have p/v clearance. I am running lg motorsports G6X3 cam. Was hoping for 500.

IMPERIALBLUE2SS · 09-25-2013, 06:35 PM

22 hp from heads and tune? Wow! I was expecting a lot more what does the area under the curve look like? Could post up your dyno sheet? Not knocking you but just interested in what it looks like? I like torque HP#'s are for bragging rights. I like a nice fat torque curve that starts early and maintains all the way through the RPM band. That's what pins you in your seat!

mdsolutions · 09-25-2013, 06:41 PM

Quote:

Originally Posted by IMPERIALBLUE2SS

22 hp from heads and tune? Wow! I was expecting a lot more what does the area under the curve look like? Could post up your dyno sheet? Not knocking you but just interested in what it looks like? I like torque HP#'s are for bragging rights. I like a nice fat torque curve that starts early and maintains all the way through the RPM band. That's what pins you in your seat!

I will post it tomorrow, I think he messed up my e-mail address because I don' t have it yet.

Danthaman · 09-25-2013, 06:44 PM

Its just a number on the dyno. Its more important to put to use on the track. Its still cool yes to say u have 500rwhp. Track use is more important anyday IMO!

JCunningham · 09-25-2013, 07:05 PM

op you have a 10 did you buy it used? maybe it already has a cam.

thahemp · 09-25-2013, 07:06 PM

Maybe an underdrive pulley would get you over your satisfied mark? Either that or go pay $100 and ride a happy dyno

.

09-25-2013, 11:48 AM	#44
thahemp Geek Drives: 2012 Black LS3 Join Date: Jan 2012 Location: Derby, KS Posts: 4,343 View My Garage	You can mill the heads to bump compression too. Just watch out. You're cutting into your PTV clearance for that cam down the road. __________________ 01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001 x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1 x = ~x

09-25-2013, 12:46 PM	#46
thahemp Geek Drives: 2012 Black LS3 Join Date: Jan 2012 Location: Derby, KS Posts: 4,343 View My Garage	Put me on that list. Nitrous would be a complete waste of time and money for me and my car. I would rather have heads and a big compression bump. Nothing wrong with nitrous... Just some of us don't live at the track. __________________ 01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001 x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1 x = ~x

09-25-2013, 07:05 PM	#54
JCunningham Drives: 2017 2SS M6 Join Date: Jun 2013 Location: WNY Posts: 7,070	op you have a 10 did you buy it used? maybe it already has a cam. __________________ real ZL1 wheels and brakes, 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and mufflers. Full 1LE suspension, with BMR adjustable sway bars and links, GM aluminum cradle bushings, Hurst shifter with lighter reverse spring, TWM shifter knob, Tick level 1 transmission. I should have bought a ZL1

09-25-2013, 07:06 PM	#55
thahemp Geek Drives: 2012 Black LS3 Join Date: Jan 2012 Location: Derby, KS Posts: 4,343 View My Garage	Maybe an underdrive pulley would get you over your satisfied mark? Either that or go pay $100 and ride a happy dyno . __________________ 01000111011011110110111101100100001000000110110001 11010101100011011010110010000001110111011010010111 01000110100000100000011101000110100001101001011100 110010000001101111011011100110010100100001 x = ac97968bd3df8f968c8cd3df998a9c94d3df9c8a918bd3df9c 909c94df8c8a9c949a8dd3df92908b979a8ddf998a9c949a8d d3df8b968b8cd1 x = ~x

09-25-2013, 06:41 AM	#43
IMPERIALBLUE2SS Drives: 2010 imperial blue LS3 M6 2SSRS Join Date: Aug 2013 Location: Virginia beach Virginia Posts: 210	I maybe backing out of the heads as they seem to be an expensive mod that doesn't really net enough gains for the expense. Still will do cams an get it dyno tuned again afterwards. Really wanted to stay naturally aspirated but a supercharger seems more of a hp producer plus don't have to spin it up as high to make the power. Guess I'm gonna have a lot of overtime time in my immediate future!

09-25-2013, 06:35 PM	#51
IMPERIALBLUE2SS Drives: 2010 imperial blue LS3 M6 2SSRS Join Date: Aug 2013 Location: Virginia beach Virginia Posts: 210	22 hp from heads and tune? Wow! I was expecting a lot more what does the area under the curve look like? Could post up your dyno sheet? Not knocking you but just interested in what it looks like? I like torque HP#'s are for bragging rights. I like a nice fat torque curve that starts early and maintains all the way through the RPM band. That's what pins you in your seat!

09-25-2013, 06:44 PM	#53
Danthaman Drives: 2011 SS/RS Join Date: Aug 2013 Location: East Texas Posts: 83 View My Garage	Its just a number on the dyno. Its more important to put to use on the track. Its still cool yes to say u have 500rwhp. Track use is more important anyday IMO!