08-26-2013, 04:56 PM | #1 |
Drives: Camaro Service Provider Join Date: Aug 2013
Location: Colorado
Posts: 48
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Dyno Results on Radical Ported Intake Manifold
Here are dyno results provided by a customer that had their LS3 intake manifold Radical Ported by Peak Speed Shop....
"First let me tell you I have an 08 Vert A6 with AR 1 3/4" headers going through highflow cats and Corsa Sport exhaust. Other additions are a Vararam CAI with throttle body spacer and a tune by TJ Wong. Over the past winter I installed a ported intake manifold and throttle body from Peak Speed Shop. The manifold was treated to the Radical porting. Nothing else on my car has changed other than I have added about 7,000 miles since TJ first tuned it. Right after installing the ported throttle body and manifold for some reason my idle speed dropped about 50 - 100 rpm. It was initially about 100 but after driving it about 30 miles it ended up about 50 RPM lower. I drove about 3 hours south to TJ Wongs and added about 10 gallons of fresh gas to my last years leftover fuel I was still burning and then we strapped the car down. TJ Wong uses a Mustang Dyno and all of his equipment is the same as the first time he tuned my car. While tuniing for drivability at part throttle and load, TJ noticed the AFR was rich and about 10% fuel was being removed to adjust for it. TJ explained the MAF was seeing more air going by and enrichening the AFR only to have the O2 sensor remove it. TJ adjusted the fuel tables to remedy the issue and we moved on to the first full pull. On the first pull, the AFR was again a little bit rich and we picked up 12 HP and 14 foot pounds of torque. An additional adjustment to the AFR resulted in an increase of 14 HP and 18 foot pounds of torque. For those of you focused only on the numbers I think you may be selling the mod short. The final numbers for my particular car came to 414/389 on this given day. What the numbers don't talk about is how the car feels. Tip in is definitely sharper and part throttle respoinse (light load) is way more crispy. This is where I spend much of my time driving (even a Vette can only do 20 MPH in traffic) and I really appreciate the additional responsivness. What about matted ? Yes you can feel it there too. I jumped on it from a 25 MPH roll and it boiled the tires so bad I hit the fuel cutoff before the tranny had a chance to shift. In second it carried the tires and just nipped the fuel shut-off again. I can say with certainty it has never done that before. My last impressions are this: IM and throttle body porting does work. It may not add as much as a headers and full exhaust with a tune, but you will feel the difference. For a guy like me who already has the other major bolt-ons it was the next logical step for me to modify and I'm very glad I did it. Of course the results are more to the credit of Bob at Peak Speed Shop for the excellent work and TJ Wong for his excellent tuning. I just bolted the thing on and anyone can do that." Ken - Mercer Island, WA AFTER BEFORE Dyno-tune results provided by TJ Wong - Vancouver, WA For information on our intake manifold porting services, see our thread in the Sponsors Classified section at http://www.camaro5.com/forums/showthread.php?t=315169 |
08-26-2013, 05:41 PM | #2 |
Search Ninja
Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009
Location: Central Ark
Posts: 7,183
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What is involved in YOUR porting process? We have a few shops that port IM's but none of them really add much on a bolt-on car.
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2010 Black 2SS/RS A6
Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train. |
08-26-2013, 05:54 PM | #3 |
Drives: 2013 SS Join Date: May 2013
Location: DFW
Posts: 4,102
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Any flow charts?
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08-26-2013, 06:29 PM | #4 | |
Drives: Camaro Service Provider Join Date: Aug 2013
Location: Colorado
Posts: 48
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Quote:
Here is a picture of the plenum before and after the posts are removed. |
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08-26-2013, 06:36 PM | #5 | |
Drives: 2010 Cyber Grey Camaro SS (LS3) Join Date: Mar 2010
Location: Clarksville TN
Posts: 2,275
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Quote:
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GPI SS3 Cam / PRC 255 heads / Forged 376ci bottom / Fore level 2 fuel system / D1SC ProCharger on 12lbs / Alky control dual nozzle / 770 whp / 649 wtq tuned by Ryan Stevens at GPI
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08-26-2013, 07:47 PM | #6 |
Drives: Camaro Service Provider Join Date: Aug 2013
Location: Colorado
Posts: 48
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08-26-2013, 08:12 PM | #7 |
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Well, Id honestly say the power came from turning off cat protection, hence the rich drop off on the top end of the original pull. Power from 11.5 to 12.5 can be this much gain.
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08-26-2013, 09:52 PM | #8 |
V8 Lounge member #2
Drives: 2001 Ws6 Join Date: Sep 2009
Location: Burbank,IL
Posts: 6,373
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On an Ls2 intake I do see where you can gain from porting but not on an Ls3/L99 intake.
Send me one and ill put it on my 2010 with bolt ons and a mustang dyno as well. Same time same day. Do you guys offer refunds if there are no gains?
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2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.
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08-26-2013, 10:15 PM | #9 |
Negative Camber Junkie
Drives: 2010 1SS LS3/6MN ABM 1 of 23 Join Date: May 2009
Location: ChiTown, IL
Posts: 1,824
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T.
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"Horsepower is something that looks great in a Magazine article, but suspension is what actually gets you around the track fast.." Jack Olsen
The drag strip is like sniffing glue, it's cheap, it's a decent buzz, it doesn't last long and they are all the same. Road racing is like China White Heroin, the buzz is stronger, the high lasts for hours, it's extremely addictive and they are all different. I can't wait for my next Track fix. DA HAWKS OWN DA CUP!!!!! |
08-26-2013, 10:24 PM | #10 | |
come find out;)
Drives: stockish 2012 camaro ss Join Date: Oct 2012
Location: speed county
Posts: 2,166
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Quote:
Mines an ls7 though |
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08-26-2013, 11:30 PM | #11 |
Head Ford Harasser
Drives: '10 IOM 2SS/RS LS3 Join Date: Jul 2013
Location: Fair Oaks, Ca
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08-27-2013, 06:50 AM | #12 |
instigator
Drives: 2020 6.2 Trail Boss, 2022 XC90 Join Date: Jan 2010
Location: 72034
Posts: 3,979
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There is no way this thing doesn't resonate or flex under boost with the posts out.
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-John S.
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08-27-2013, 07:10 AM | #13 |
Drives: none Join Date: Aug 2011
Location: DFW area
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08-27-2013, 07:13 AM | #14 | |
Future Mopar Owner
Drives: 2011, 2SS/RS, Synergy Join Date: Aug 2012
Location: TN
Posts: 2,373
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Quote:
An independent ported intake test Carry on...
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2005 GTO-IBM-A4-Sold
2011 Camaro SS/RS Synergy-1 of 255-Sold You will be missed but you are in good hands! 2019 Challenger Hellcat B5, Redeye, Widebody |
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Tags |
dyno, intake manifold, intake porting, peak speed shop, radical port |
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