Dyno Results on Radical Ported Intake Manifold - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

peakspeedshop · 08-26-2013, 04:56 PM

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

axis · 08-26-2013, 05:41 PM

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.

62nalide · 08-26-2013, 05:54 PM

Any flow charts?

peakspeedshop · 08-26-2013, 06:29 PM

Quote:

Originally Posted by axis

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.

Besides porting the runners, our Radical Porting goes the extra step of removing the three posts inside the plenum in order to create better air flow. We do it in such a way that it still stands up under the high pressure of super chargers if someone wants to add one. That's why we get better results than most other companies. Plus, 90% of what we do is porting intakes and throttle bodies. So, we are very good at removing material in key places to maximize results.

Here is a picture of the plenum before and after the posts are removed.

LS3 SS · 08-26-2013, 06:36 PM

Quote:

Originally Posted by peakspeedshop

Besides porting the runners, our Radical Porting goes the extra step of removing the three posts inside the plenum in order to create better air flow. We do it in such a way that it still stands up under the high pressure of super chargers if someone wants to add one. That's why we get better results than most other companies. Plus, 90% of what we do is porting intakes and throttle bodies. So, we are very good at removing material in key places to maximize results.

Here is a picture of the plenum before and after the posts are removed.

Can you PM me your pricing, shipping prices, and turn around time? Thanks.

peakspeedshop · 08-26-2013, 07:47 PM

Quote:

Originally Posted by LS3 SS

Can you PM me your pricing, shipping prices, and turn around time? Thanks.

Yes, sending you a PM.

Rhino79 · 08-26-2013, 08:12 PM

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.

litle88 · 08-26-2013, 09:52 PM

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?

TBone · 08-26-2013, 10:15 PM

T.

Nightmare2012 · 08-26-2013, 10:24 PM

Quote:

Originally Posted by litle88

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?

Quote:

Originally Posted by TBone

T.

x3
Mines an ls7 though

H8S FORD · 08-26-2013, 11:30 PM

grocerygetter · 08-27-2013, 06:50 AM

There is no way this thing doesn't resonate or flex under boost with the posts out.

white ZL1 · 08-27-2013, 07:10 AM

Quote:

Originally Posted by Rhino79

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.

This. It's leaner across the board.

Mydivorcegift · 08-27-2013, 07:13 AM

Quote:

Originally Posted by litle88

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?

Quote:

Originally Posted by TBone

T.

Quote:

Originally Posted by Nightmare2012

x3
Mines an ls7 though

Ah....

An independent ported intake test

Carry on...

08-26-2013, 04:56 PM	#1
peakspeedshop Drives: Camaro Service Provider Join Date: Aug 2013 Location: Colorado Posts: 48	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
axis Search Ninja Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009 Location: Central Ark Posts: 7,183	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. __________________ 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
62nalide Drives: 2013 SS Join Date: May 2013 Location: DFW Posts: 4,102	Any flow charts? __________________ https://frankensteined.net/ Martin@Frankensteined.net

08-26-2013, 09:52 PM	#8
litle88 V8 Lounge member #2 Drives: 2001 Ws6 Join Date: Sep 2009 Location: Burbank,IL Posts: 6,373	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? __________________ 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.

08-26-2013, 10:15 PM	#9
TBone Negative Camber Junkie Drives: 2010 1SS LS3/6MN ABM 1 of 23 Join Date: May 2009 Location: ChiTown, IL Posts: 1,824	T. __________________ "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, 08:12 PM	#7
Rhino79 Drives: 2010 Camaro SS L99/Auto Join Date: Jul 2011 Location: Cabot, AR Posts: 2,827 View My Garage	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.

08-26-2013, 11:30 PM	#11
H8S FORD Head Ford Harasser Drives: '10 IOM 2SS/RS LS3 Join Date: Jul 2013 Location: Fair Oaks, Ca Posts: 202

08-27-2013, 06:50 AM	#12
grocerygetter instigator Drives: 2020 6.2 Trail Boss, 2022 XC90 Join Date: Jan 2010 Location: 72034 Posts: 3,979 View My Garage	There is no way this thing doesn't resonate or flex under boost with the posts out. __________________ -John S.