F.a.s.t. vs rod mod/ported OEM intake - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Bigdumogre · 03-02-2020, 07:46 PM

They are about the same price so looking which one would perform better on a NA build.

Black_SS10 · 03-02-2020, 07:53 PM

How are they almost the same price? The F.A.S.T is almost a grand and the GPI modded one is $400 + shipping for a manifold. The GPI manifold has been shown to be a real winner for a street car. Other manifolds may make more on top but lose more down low. The GPI modded one makes decent gains across the board.

olblue75 · 03-02-2020, 07:55 PM

https://youtu.be/LnAO1rKg7Lg

This should help you.

InFiD3ViL · 03-02-2020, 07:57 PM

For a bolt on/mildly cammed car I would say GPI Ported Rod Mod would be the best bet.

You really can't beat that stock manifold for under 6500 rpm. Once you start pushing over 6500 rpm it becomes a bottleneck.

Black_SS10 · 03-02-2020, 07:58 PM

Quote:

Originally Posted by olblue75

https://youtu.be/LnAO1rKg7Lg

This should help you.

I was just looking for this!

Bigdumogre · 03-02-2020, 08:01 PM

Quote:

Originally Posted by Black_SS10

How are they almost the same price? The F.A.S.T is almost a grand and the GPI modded one is $400 + shipping for a manifold. The GPI manifold has been shown to be a real winner for a street car. Other manifolds may make more on top but lose more down low. The GPI modded one makes decent gains across the board.

Sorry should of said I was gonna buy a new intake which is $288 and send it to them to get rod mod and ported with heat shield. Just in case I go forced induction one day I can slap the old one on since they advise not to use a ported one for forced.
This is still cheaper than the fast

Bigdumogre · 03-02-2020, 08:02 PM

Quote:

Originally Posted by olblue75

https://youtu.be/LnAO1rKg7Lg

This should help you.

Will watch thanks

CamaroDreams76 · 03-03-2020, 05:34 AM

If you Google Rick Crawford rod mod intake, go on some g8 forums and your questions will be answered. Theres even a dyno test between the RCR intake and a Fast 102.

mcbuff52 · 03-22-2020, 09:59 PM

I purchased a new GM manifold, and sent it to GPI for Rodmod, porting, and heat shield. They also ported my throttle body. Torque is very good in mid range. On a Mustang dyno, Rwhp 445, Rwtq 437. If the car is used as a daily, the rodmod is the way to go. What percentage of your driving is above 5,000 rpm?

InFiD3ViL · 03-22-2020, 10:10 PM

Quote:

Originally Posted by mcbuff52

What percentage of your driving is above 5,000 rpm?

You'd be surprised with some of the guys in here!

rich2342 · 04-25-2021, 08:07 AM

I am having a RCR style intake installed soon. I am also adding a mild cam. I am having before and after dynos offered by my tuner. He doesn't think it will pick up anything. I have seen bolt on ls3 without cams benefiting, so I hope it will.

Mine is ported and has the radius rods installed.

Bigdumogre · 04-25-2021, 08:24 AM

Quote:

Originally Posted by rich2342

I am having a RCR style intake installed soon. I am also adding a mild cam. I am having before and after dynos offered by my tuner. He doesn't think it will pick up anything. I have seen bolt on ls3 without cams benefiting, so I hope it will.

Mine is ported and has the radius rods installed.

That’s the same one I went with and my mod range pulls better now. It was the right decision for a NA build.

rich2342 · 04-25-2021, 08:29 AM

Technically this isn't a Rick crawford, rather a T rod modded and ported ls3 mani. G8 guys had good success with them.

Did you dyno before and after with yours? Do you have a cam with it?

I selected a mild cam and I am hoing the intake will add some hp and torque to even things out.

My cam is 220/230 with 117 lsa.

InFiD3ViL · 04-25-2021, 12:54 PM

Quote:

Originally Posted by rich2342

I am having a RCR style intake installed soon. I am also adding a mild cam. I am having before and after dynos offered by my tuner. He doesn't think it will pick up anything. I have seen bolt on ls3 without cams benefiting, so I hope it will.

Mine is ported and has the radius rods installed.

Please make sure to post your before/after results here man. It will help a lot of the people that are on the fence on this. Plus, I want to hear about your tuner's response.

03-02-2020, 07:46 PM	#1
Bigdumogre Drives: 2012 Camaro SS Join Date: Dec 2019 Location: New York Posts: 1,434	F.a.s.t. vs rod mod/ported OEM intake They are about the same price so looking which one would perform better on a NA build. __________________ 2012 Camaro 2SS/RS - CSP Custom Cam 232/240 .615/.615 113 +3, Texas speed CNC heads, FTI billet triple disc converter, K&N cai, Katech ported TB, GPI Ported/rod modded manifold, Texas speed 1 7/8 headers, HFC, Flowmaster 2 chambers with x pipe, Mishimoto CC, MSD wires, Roto fab washer relocation, tru cool 40k trans cooler, apex scoop, Pedders extreme coil overs and much more!!

03-02-2020, 07:53 PM	#2
Black_SS10 SomeguyK Drives: 2010 Black 2SS/RS Join Date: Nov 2014 Location: FL Posts: 1,947	How are they almost the same price? The F.A.S.T is almost a grand and the GPI modded one is $400 + shipping for a manifold. The GPI manifold has been shown to be a real winner for a street car. Other manifolds may make more on top but lose more down low. The GPI modded one makes decent gains across the board. __________________ TMS 427, Dart iron Block, Forged assembly, Frankenstien heads, AGP TT 62/62 BB turbo's, AGP/Fore triple fuel system, Tilton clutch, Holley 1 7/8 shorties, Technostalgia tail lights,Oracle, Aeroforce, MGW shifter,Flowmaster, Pegasus subframe bushings,BMR trailing & toe arms,Z28 UCA bushings,Zl1 rear sway bar,Prothane,BMR,Goodridge brake lines,Ridetech HQ coilovers,3.91,Trutrac,billet caps,DSS axles,HE offest,built TR6060,1LE diffuser,Havoc spoiler,SSclones,20in MRR 017, Pirelli P Zero, Nitto NT555RII More to come.

03-02-2020, 07:55 PM	#3
olblue75 Drives: 2010 2SS/RS Join Date: Dec 2009 Location: Clarksville Tennesse. Posts: 6,064	https://youtu.be/LnAO1rKg7Lg This should help you. __________________ 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.

03-02-2020, 07:57 PM	#4
InFiD3ViL Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016 Location: Spring Hill, FL Posts: 4,574	For a bolt on/mildly cammed car I would say GPI Ported Rod Mod would be the best bet. You really can't beat that stock manifold for under 6500 rpm. Once you start pushing over 6500 rpm it becomes a bottleneck. __________________ 2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI

03-03-2020, 05:34 AM	#8
CamaroDreams76 Tri-County Camaro SWFL Drives: 2013 IOM 2SS/RS/1LE Join Date: Apr 2013 Location: South West FL Posts: 3,078 View My Garage	If you Google Rick Crawford rod mod intake, go on some g8 forums and your questions will be answered. Theres even a dyno test between the RCR intake and a Fast 102. __________________ Just bolt ons........ https://www.camaro5.com/forums/showthread.php?t=343023

03-22-2020, 09:59 PM	#9
mcbuff52 Drives: 2010 Camaro 2SS/RS A6 Join Date: Nov 2018 Location: Bourg, La. Posts: 74 View My Garage	Rod mod vs Fast 102 I purchased a new GM manifold, and sent it to GPI for Rodmod, porting, and heat shield. They also ported my throttle body. Torque is very good in mid range. On a Mustang dyno, Rwhp 445, Rwtq 437. If the car is used as a daily, the rodmod is the way to go. What percentage of your driving is above 5,000 rpm?

04-25-2021, 08:07 AM	#11
rich2342 Drives: 2010 CGM Camaro SS Join Date: Dec 2016 Location: MA Posts: 515	I am having a RCR style intake installed soon. I am also adding a mild cam. I am having before and after dynos offered by my tuner. He doesn't think it will pick up anything. I have seen bolt on ls3 without cams benefiting, so I hope it will. Mine is ported and has the radius rods installed. Attached Images

04-25-2021, 08:29 AM	#13
rich2342 Drives: 2010 CGM Camaro SS Join Date: Dec 2016 Location: MA Posts: 515	Technically this isn't a Rick crawford, rather a T rod modded and ported ls3 mani. G8 guys had good success with them. Did you dyno before and after with yours? Do you have a cam with it? I selected a mild cam and I am hoing the intake will add some hp and torque to even things out. My cam is 220/230 with 117 lsa.