Ported Intake Manifold - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

han · 03-27-2023, 09:10 AM

Hello, I am wanting to get a ported intake manifold for my 2010 L99. There are so many different ones I am having a hard time deciding which one I want. Which one does everyone suggest? I currently have kooks 1 7/8’ long tube headers, rotofab cai, magnaflow tips.

1JEWLDSSRS · 03-27-2023, 09:16 AM

I would go with the rod modded one from GPI. A lot of folks running this one.

SSJ2 · 03-27-2023, 11:41 AM

Second the GPI suggestion. Ported with the Rod Mod. Quality work and noticeable difference.

morepowerjoe · 03-27-2023, 02:38 PM

+3

ss camaro-monte · 03-27-2023, 05:23 PM

Getting my ported rod mod put on by GPI this week. Hopefully get the car back next week. Anyways ported rod mod is worth 6-12rwhp. On a stock motor expect the low end of that. Big cam motors can make 12rwhp or more.

Only downside of having it ported is they don't recommend nitrous or forced induction. Probably going to have to go back to stock or non ported next year.lol

olblue75 · 03-27-2023, 06:41 PM

I have the GPI intake a thoroughly pleased with it, I’m making about 500 wheel hp with heads, cam, headers, shaft mounted valvetrain, and E85. through a 6 speed manual. And the car runs great and pulls up to 7k without any issues.

1JEWLDSSRS · 03-28-2023, 08:57 AM

Here's ya some food for thought...

acammer · 03-29-2023, 07:50 AM

These guys all covered it really well, but I'll be one more echo - GPI ported rod mod! The OEM really did a phenomenal job with that manifold from the factory, and outside of a hi-rpm combination that plans to rip 7500+rpm, it's very tough to beat for it's overall power curve.

The rod mod really helps the air in the plenum make the sharp transition into the intake runner by giving the air a radius, rather than an edge to follow. Air hates sharp edges! Most of that 6-12whp gain is the result of those radius rods.

The porting (which also includes removing the the stands/supports in the middle of the manifold) doesn't seem to do much to add more peak power, but it has a fairly substantial influence on midrange power and torque the engine produces. That's a seat of the pants difference you'll feel every time you rip through that 3500-5000rpm range.

As a few noted, we recommend against the porting for boosted/nitrous applications, as it reduces the integrity of the manifold slightly. Specifically, the plugs in the bottom of the manifold where the stands once were are likely to push out under increased manifold pressure.

CamaroDreams76 · 03-29-2023, 08:22 AM

I went with Rick Crawford, which is basically the same as the GPI. Rick ports the center posts out, GPI has an option for that.

1JEWLDSSRS · 03-29-2023, 01:18 PM

Quote:

Originally Posted by acammer

These guys all covered it really well, but I'll be one more echo - GPI ported rod mod! The OEM really did a phenomenal job with that manifold from the factory, and outside of a hi-rpm combination that plans to rip 7500+rpm, it's very tough to beat for it's overall power curve.

The rod mod really helps the air in the plenum make the sharp transition into the intake runner by giving the air a radius, rather than an edge to follow. Air hates sharp edges! Most of that 6-12whp gain is the result of those radius rods.

The porting (which also includes removing the the stands/supports in the middle of the manifold) doesn't seem to do much to add more peak power, but it has a fairly substantial influence on midrange power and torque the engine produces. That's a seat of the pants difference you'll feel every time you rip through that 3500-5000rpm range.

As a few noted, we recommend against the porting for boosted/nitrous applications, as it reduces the integrity of the manifold slightly. Specifically, the plugs in the bottom of the manifold where the stands once were are likely to push out under increased manifold pressure.

Awesome info Andrew, as always!!

Little Walter · 03-29-2023, 04:19 PM

Have anyone tried Wilson Manifold?

InFiD3ViL · 03-30-2023, 05:38 PM

Quote:

Originally Posted by olblue75

I have the GPI intake a thoroughly pleased with it, I’m making about 500 wheel hp with heads, cam, headers, shaft mounted valvetrain, and E85. through a 6 speed manual. And the car runs great and pulls up to 7k without any issues.

Which shaft mount setup you go with?

acammer · 03-31-2023, 07:06 AM

Quote:

Originally Posted by InFiD3ViL

Which shaft mount setup you go with?

I know you didn't ask me... but I'll chime in. I have the BSR Max Lift shaft rockers in my build. The quality looked great out of the box, and so far so good with about 5k miles on them. I very much like that they are still a light weight OEM rocker, but coated and treated for strength, bushed, and of course shaft mounted for rigidity and stability under increased spring pressure and RPM.

We've been slipping these into more builds lately - for the money it's really not a bad upgrade for the aggressive hydraulic roller applications. We recommend the shaft mount stuff when you get over 450lbs open pressure - that really starts moving things around on factory individual pedestals.

George-CZ · 03-31-2023, 09:34 AM

Quote:

Originally Posted by acammer

These guys all covered it really well, but I'll be one more echo - GPI ported rod mod! The OEM really did a phenomenal job with that manifold from the factory, and outside of a hi-rpm combination that plans to rip 7500+rpm, it's very tough to beat for it's overall power curve.

The rod mod really helps the air in the plenum make the sharp transition into the intake runner by giving the air a radius, rather than an edge to follow. Air hates sharp edges! Most of that 6-12whp gain is the result of those radius rods.

The porting (which also includes removing the the stands/supports in the middle of the manifold) doesn't seem to do much to add more peak power, but it has a fairly substantial influence on midrange power and torque the engine produces. That's a seat of the pants difference you'll feel every time you rip through that 3500-5000rpm range.

As a few noted, we recommend against the porting for boosted/nitrous applications, as it reduces the integrity of the manifold slightly. Specifically, the plugs in the bottom of the manifold where the stands once were are likely to push out under increased manifold pressure.

I'm quite interested.
I would consider this another light upgrade to my engine.
Must I have a new tune?

I assume the procedure will be the same as for the ported throttle body.
Datalog and subsequent correction of the fuel map according to the datalog.
it is so?

03-27-2023, 09:10 AM	#1
han Drives: 2012 camaro ss Join Date: Nov 2021 Location: georgia Posts: 2 View My Garage	Ported Intake Manifold Hello, I am wanting to get a ported intake manifold for my 2010 L99. There are so many different ones I am having a hard time deciding which one I want. Which one does everyone suggest? I currently have kooks 1 7/8’ long tube headers, rotofab cai, magnaflow tips.

03-27-2023, 09:16 AM	#2
1JEWLDSSRS Drives: 2011 SS-RS Join Date: May 2011 Location: FLORIDA Posts: 11,435	I would go with the rod modded one from GPI. A lot of folks running this one. __________________ TSP STAGE 3 CAM,231/246 @112 LSA 614/641 LIFT, CIRCLE D 5C-4200-4500 CONVERTER,LOD INTAKE.CORSA EXHAUST. DSS 1 PC DS. PEGASUS SOLID CRADLE MOUNTS. 486RWHP/475RWTQ.LOTS MORE.

03-27-2023, 11:41 AM	#3
SSJ2 Drives: 2010 2SS CAMARO Join Date: Apr 2020 Location: CT Posts: 129 View My Garage	Second the GPI suggestion. Ported with the Rod Mod. Quality work and noticeable difference. __________________ BBK Long tube headers, Hi flo cats, straight pipe muffler delete with j-pipes. K+N CAI, Soler Performance Ported Throttle Body, Soler Performance Throttle Controller, Phantom Grill, MGW flatstick shifter. 3.91 Gears, Ported Rod Mod Intake, ZTA Spoiler, Rohana RC22 20x10 20x11.

03-27-2023, 02:38 PM	#4
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,105	+3 __________________ DSS FX Forged Pistons, Eagle ESP L19 Forged Rods, ARP Head and Main Studs, TSP PRC 260 CNC Ported Heads milled .030, Cometic .040 Head Gaskets, GPI SS3 VVT Camshaft, GM Performance Racing Lifters, CHE Trunnions , Molly Pushrods, Melling 10355HV Oil Pump, Cold Air Inductions CAI, Fast LSXR Intake Manifold, Nick Williams 103 TB, TSP 1 7/8" Longtubes with 3" TSP Exhaust, ZL1 Fuel Pump, Mishimoto Radiator, Mishimoto Oil Cooler, Tru Cool 40k Tranny Cooler, 3600 Circle D Converter, Fluid Dynamics Balancer Build Thread https://www.camaro5.com/forums/showthread.php?t=609817

03-27-2023, 06:41 PM	#6
olblue75 Drives: 2010 2SS/RS Join Date: Dec 2009 Location: Clarksville Tennesse. Posts: 6,064	I have the GPI intake a thoroughly pleased with it, I’m making about 500 wheel hp with heads, cam, headers, shaft mounted valvetrain, and E85. through a 6 speed manual. And the car runs great and pulls up to 7k without any issues. __________________ Orange Krush II 1LE Front sway bar, Splitter, shocks and struts, Z28 dual mode mufflers, Intake, UCA Bushings, and Toresen 3.91 Diff. 1 piece DSS Drive Shaft, ZL1/C7 Calipers, and 32mm JPSS Rear Bar. ASC race spec splitter and wicker. 6th Gen M017 Wheels. Stainless Works 1 7/8 LTs. DSE and PAFDT Suspension components.

03-27-2023, 05:23 PM	#5
ss camaro-monte Drives: 2015 camaro 2ss, 87 monte ss Join Date: Jun 2016 Location: Houston Posts: 242	Getting my ported rod mod put on by GPI this week. Hopefully get the car back next week. Anyways ported rod mod is worth 6-12rwhp. On a stock motor expect the low end of that. Big cam motors can make 12rwhp or more. Only downside of having it ported is they don't recommend nitrous or forced induction. Probably going to have to go back to stock or non ported next year.lol

03-29-2023, 07:50 AM	#8
acammer GPI Sales Consultant Drives: 2011 Camaro 2SS SGM Join Date: Jul 2016 Location: Weedsport, NY Posts: 2,794 View My Garage	These guys all covered it really well, but I'll be one more echo - GPI ported rod mod! The OEM really did a phenomenal job with that manifold from the factory, and outside of a hi-rpm combination that plans to rip 7500+rpm, it's very tough to beat for it's overall power curve. The rod mod really helps the air in the plenum make the sharp transition into the intake runner by giving the air a radius, rather than an edge to follow. Air hates sharp edges! Most of that 6-12whp gain is the result of those radius rods. The porting (which also includes removing the the stands/supports in the middle of the manifold) doesn't seem to do much to add more peak power, but it has a fairly substantial influence on midrange power and torque the engine produces. That's a seat of the pants difference you'll feel every time you rip through that 3500-5000rpm range. As a few noted, we recommend against the porting for boosted/nitrous applications, as it reduces the integrity of the manifold slightly. Specifically, the plugs in the bottom of the manifold where the stands once were are likely to push out under increased manifold pressure. __________________ GPI Max Package 2.0: Brodix BR7 heads/GPI porting, MAX3 cam, ST2116LSR, BSR Max Lift rockers, LS7 LSXR with 103mm TB, Vararam OTR, Mcleod RXT, G-Force/Strange 9" IRS setup with 4.63 gear. 551whp, 11.1@124mph. *Got a question about a GPI product? Feel free to shoot me a message!*

03-29-2023, 08:22 AM	#9
CamaroDreams76 Tri-County Camaro SWFL Drives: 2013 IOM 2SS/RS/1LE Join Date: Apr 2013 Location: South West FL Posts: 3,079 View My Garage	I went with Rick Crawford, which is basically the same as the GPI. Rick ports the center posts out, GPI has an option for that. __________________ Just bolt ons........ https://www.camaro5.com/forums/showthread.php?t=343023

03-29-2023, 04:19 PM	#11
Little Walter Drives: ZL1 Join Date: Dec 2016 Location: New Orleans Posts: 261	Have anyone tried Wilson Manifold?