PRAY Stage 4 cam with some other goodies... - Page 2

RideZX6R · 07-10-2019, 02:08 PM

552WHP AND 456 WTQ initially - some minor changes being made now - new dyno chart to follow

ULTRAZLS1 · 07-10-2019, 03:39 PM

nice.

although it looks like you chose to stay with unported heads? any reason?you are leaving a good 20-30 rwhp on the table without them.

RideZX6R · 07-10-2019, 06:03 PM

Quote:

Originally Posted by ULTRAZLS1

nice.

although it looks like you chose to stay with unported heads? any reason?you are leaving a good 20-30 rwhp on the table without them.

I'm broke bruh :P

And 550whp is enough for now.

I might do a hi ram/hood and a 150 plate shot over the winter, if budget allows I'll port the heads.

G2K · 07-11-2019, 10:10 AM

Id do the heads before the hi ram.... will give about the same power and dont have to cut your hood or modify the cowl.

avalonandl · 07-11-2019, 10:44 AM

Can you do this cam with stock exhaust manifolds? I really don't want headers on my car, too noisy/hot etc.....

OVRKLL · 07-11-2019, 10:49 AM

Nice!
I can actually hear the horses galloping!

KingLT1 · 07-11-2019, 02:33 PM

Quote:

Originally Posted by avalonandl

Can you do this cam with stock exhaust manifolds? I really don't want headers on my car, too noisy/hot etc.....

Sure, it just won't make as much power.

Redlinez · 07-13-2019, 07:51 AM

I can't see doing a cam without already having headers. When you say noisy, what do you mean? A cam is going to make some noise.

KingLT1 · 07-13-2019, 10:12 AM

He means that he doesn't want the increased sound level from the exhaust that headers produce.

oldman · 07-13-2019, 01:06 PM

the factory headers are really nice, like the Z/28 headers. I would look for a cam similar to the Z/28 cam. Such a cam will be a little bit more radical on the smaller 6.2 but the overall curve should be similar just offset a few hundred rpm up due to the smaller 6.2.
Texas Speed has a AFM cam, so does comp. IMO TxSpeed does more RD and you really run into a potential lifter collapse with too much spring. I would go for a full cam and kit from a vendor that HAS AFM cars running for the last few years.

I don't think there is that much sans headers to be gained by going to a full AFM delete setup. But deleting the AFM does give you more choices, also lets you port the heads. So ported heads, decent Z/28 type cam, phaser limited to 20 degrees, factory headers, front cat deletes (move sensors behind secondary cats).. Pray ported intake, 95mm TB, green filter in cut housing.... would yield a very nice performance boost on a "stock car"

End of thread jack.. back to this REALLY nice NA setup!

avalonandl · 07-14-2019, 11:40 AM

I really wasn't concerned on NOISE per se. Headers do give off more heat under hood, melted plug wires a concern. I like the lope and sound of a cam. The OEM headers are actually pretty good: 4-2-1 and sound good. The factory NPP sounds OK, may switch at some point. Will get the heads ported. I don't care about 1/4 mile times.....

oldman · 07-14-2019, 12:00 PM

the 1 and 3/4 headers do offer more room for the wires. I am on the stock wires for years now, they do need routing and a few zip ties and one custom bracket ( 5 minutes and a strip of aluminum). That said Speed engineering has $60 bent sparkplug boot wires. Or you can put your own bent boot on a stock wire. Making your own wires was the norm for many decades. There is more heat and guys are cutting open the heat extractors on the hood, you will need to wrap the starter and the header in that location. If you do a search on my post and "header". I've done many write-ups / responses.

Even stock the 2" header has shown a HP increase and debatable mid range torque increases too. Yes I know, that ain't possible.

RideZX6R · 07-14-2019, 01:33 PM

Quote:

Originally Posted by avalonandl

I really wasn't concerned on NOISE per se. Headers do give off more heat under hood, melted plug wires a concern. I like the lope and sound of a cam. The OEM headers are actually pretty good: 4-2-1 and sound good. The factory NPP sounds OK, may switch at some point. Will get the heads ported. I don't care about 1/4 mile times.....

I'd just buy either bent boot wires or the little heat shielding tubes they make for wires if that's your main concern and noise isn't.

I have OBX 2in headers and the car is loud at idle (as you heard in the video), but since that kit keeps NPP, the car closes the valves are low throttle/cruising so the car is really quiet in city driving besides taking off from lights and when you hit the throttle very aggressively. Definitely livable.

If you force the car into stealth mode, you hear the cam still in the idle but it's really pretty mild.

6spdhyperblue · 07-14-2019, 01:37 PM

Wrap or coat your headers guys in addition to the prep mentioned above

07-10-2019, 02:08 PM	#15
RideZX6R Probably tired right now Drives: 1Lap1LE \| EV6 FE \| DenaliHD \| E92M3 Join Date: Sep 2010 Location: At the office (CLT, NC) Posts: 1,144	552WHP AND 456 WTQ initially - some minor changes being made now - new dyno chart to follow __________________ '17 SS 1LE - 1LAP 1LE (Now with more 447!) '24 Denali Ultimate 3500 DRW '22 Kia EV6 First Edition '12 E93 M3 '25 911 (ordered) Formers... '18 RS3 (1 of 2) Cumulus Blue \| '19 RS5 Sportback Sonoma Green \| '07 Cayman S 6MT \| '16 Audi S3 Prestige Viper Green (APR Stage 3+) \| '19 Mustang Shelby GT350R \| '17 SS 1LE MBM 575whp all-motor

07-11-2019, 10:10 AM	#18
G2K @Blackmamba_1LE Drives: 2017 1LE Join Date: Jun 2017 Location: South Florida Posts: 787	Id do the heads before the hi ram.... will give about the same power and dont have to cut your hood or modify the cowl. __________________ Florida High Performance: H/C Whipple LME 377 900WHP

07-11-2019, 10:44 AM	#19
avalonandl Drives: 2019 ZL-1 Join Date: Feb 2009 Location: Troy, MI & Naples, FL Posts: 2,018	Can you do this cam with stock exhaust manifolds? I really don't want headers on my car, too noisy/hot etc..... __________________ 2019 ZL-1 Acquired 4/23/21 at 6300 miles. Riverside Blue, A10, PDR. Traded in 2017 2SS with 6M and 32k miles. Continental Extreme Contact Sports. Now has 10,000 miles... 2012 Yukon XL Denali w/ 6.2 AWD

07-11-2019, 10:49 AM	#20
OVRKLL Drives: 2017 1SS 1LE...makes me go YeeeHaw! Join Date: Mar 2012 Location: Austin, TX Posts: 577	Nice! I can actually hear the horses galloping! __________________ The Thrill isn't around the corner, the Thrill is the corner! So don't hesitate, just brake late!

07-13-2019, 07:51 AM	#22
Redlinez Shifts under load Drives: 2020 Camaro 1SS 1LE rally green Join Date: Apr 2017 Location: Fuquay-Varina, NC Posts: 1,295	I can't see doing a cam without already having headers. When you say noisy, what do you mean? A cam is going to make some noise. __________________ 24 Audi S3 prem plus, sport package HPDE - southeast - JTI- solo, PCA- blue. 22 Suzuki GSX-S 1000GT blue

07-10-2019, 03:39 PM	#16
ULTRAZLS1 Drives: 14 Silverado LTZ Z71, 16 Camaro SS Join Date: Nov 2009 Location: Jackson, Michigan Posts: 4,423	nice. although it looks like you chose to stay with unported heads? any reason?you are leaving a good 20-30 rwhp on the table without them.

07-13-2019, 10:12 AM	#23
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 7,643	He means that he doesn't want the increased sound level from the exhaust that headers produce. __________________ 2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel

07-13-2019, 01:06 PM	#24
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,346	the factory headers are really nice, like the Z/28 headers. I would look for a cam similar to the Z/28 cam. Such a cam will be a little bit more radical on the smaller 6.2 but the overall curve should be similar just offset a few hundred rpm up due to the smaller 6.2. Texas Speed has a AFM cam, so does comp. IMO TxSpeed does more RD and you really run into a potential lifter collapse with too much spring. I would go for a full cam and kit from a vendor that HAS AFM cars running for the last few years. I don't think there is that much sans headers to be gained by going to a full AFM delete setup. But deleting the AFM does give you more choices, also lets you port the heads. So ported heads, decent Z/28 type cam, phaser limited to 20 degrees, factory headers, front cat deletes (move sensors behind secondary cats).. Pray ported intake, 95mm TB, green filter in cut housing.... would yield a very nice performance boost on a "stock car" End of thread jack.. back to this REALLY nice NA setup! __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.

07-14-2019, 11:40 AM	#25
avalonandl Drives: 2019 ZL-1 Join Date: Feb 2009 Location: Troy, MI & Naples, FL Posts: 2,018	I really wasn't concerned on NOISE per se. Headers do give off more heat under hood, melted plug wires a concern. I like the lope and sound of a cam. The OEM headers are actually pretty good: 4-2-1 and sound good. The factory NPP sounds OK, may switch at some point. Will get the heads ported. I don't care about 1/4 mile times..... __________________ 2019 ZL-1 Acquired 4/23/21 at 6300 miles. Riverside Blue, A10, PDR. Traded in 2017 2SS with 6M and 32k miles. Continental Extreme Contact Sports. Now has 10,000 miles... 2012 Yukon XL Denali w/ 6.2 AWD

07-14-2019, 12:00 PM	#26
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,346	the 1 and 3/4 headers do offer more room for the wires. I am on the stock wires for years now, they do need routing and a few zip ties and one custom bracket ( 5 minutes and a strip of aluminum). That said Speed engineering has $60 bent sparkplug boot wires. Or you can put your own bent boot on a stock wire. Making your own wires was the norm for many decades. There is more heat and guys are cutting open the heat extractors on the hood, you will need to wrap the starter and the header in that location. If you do a search on my post and "header". I've done many write-ups / responses. Even stock the 2" header has shown a HP increase and debatable mid range torque increases too. Yes I know, that ain't possible. __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.

07-14-2019, 01:37 PM	#28
6spdhyperblue Drives: 2SS 1LE Join Date: Aug 2013 Location: US Posts: 3,794	Wrap or coat your headers guys in addition to the prep mentioned above

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