Berk HFC Installed w/ Dyno

Kthulu · 03-25-2011, 04:43 PM

Howdy folks.

Was out earlier today at Atlantic Motorsports in Gaithersburg, MD where I had them install the Berk high-flow catalytic converters on my Z. I had them do a before and after dyno on my car so we could see what the gains where, if any.

My Z already had the Stillen cat-back exhaust, and I don't have any dyno numbers for that add on. This is just "pre" and "post" Berk HFC with a Stillen exhaust.

http://www.flickr.com/photos/30500379@N03/5559091541/

http://www.flickr.com/photos/30500379@N03/5559668994/

I have to say that I am pretty stoked to add almost 8 hp and 6 ft/lbs with such a simple upgrade. In addition to the power increase, the sound is amazing. Very little rasp at all, just a solid baritone note that is subtle at idle and wails at full throttle. Install went smooth; just one broken bolt.

Nothing but good stuff to say so far; I wish I had done this upgrade sooner.

EDIT: trying to get the dyno charts to load up in the post... grrr...

In any case went from 289.6hp and 243.8 ft/lbs to 297.2hp and 250ft/lbs. Very impressed with the flat torque curve of this engine.

B.A.Q · 03-26-2011, 04:35 AM

I got the same HFCs and I agree on how awesome it sounds

I wished I did a befor and after dyno

Footloose301 · 03-26-2011, 04:38 AM

Sooo close. Test pipes would have brought you to 300hp even haha.

Good job though man. I wish I got a baseline dyno before modding mine. I can't decide whether or not to get test pipes or HFCs.

Kthulu · 03-26-2011, 08:13 PM

Yeah, 300np was so close I could taste it.

I've noticed another sound besides the deeper exhaust note. When your really, really on the gas, there is a audible "woosh" under the note of the exhaust. Doesn't sound like any exhaust leak I've heard before.

darrinps · 03-26-2011, 08:45 PM

Quote:

Originally Posted by Kthulu

Yeah, 300np was so close I could taste it.

I've noticed another sound besides the deeper exhaust note. When your really, really on the gas, there is a audible "woosh" under the note of the exhaust. Doesn't sound like any exhaust leak I've heard before.

Do you have an after market CAI maybe?

That'll give you a "whoosh" sound.

In any case it is probably on the intake side and you just never noticed it before you listened to your car in an enclosed (where the dyno was run) setting maybe.

brian0128 · 03-26-2011, 09:33 PM

How much was the install with the dyno runs?

Staples · 03-26-2011, 11:11 PM

Quote:

Originally Posted by Kthulu

Howdy folks.

Was out earlier today at Atlantic Motorsports in Gaithersburg, MD where I had them install the Berk high-flow catalytic converters on my Z. I had them do a before and after dyno on my car so we could see what the gains where, if any.

My Z already had the Stillen cat-back exhaust, and I don't have any dyno numbers for that add on. This is just "pre" and "post" Berk HFC with a Stillen exhaust.

DynoBefore | Flickr - Photo Sharing!

DynoAfter | Flickr - Photo Sharing!

I have to say that I am pretty stoked to add almost 8 hp and 6 ft/lbs with such a simple upgrade. In addition to the power increase, the sound is amazing. Very little rasp at all, just a solid baritone note that is subtle at idle and wails at full throttle. Install went smooth; just one broken bolt.

Nothing but good stuff to say so far; I wish I had done this upgrade sooner.

EDIT: trying to get the dyno charts to load up in the post... grrr...

In any case went from 289.6hp and 243.8 ft/lbs to 297.2hp and 250ft/lbs. Very impressed with the flat torque curve of this engine.

Yeah the guys at AMS are really cool. They did my original tune on my Cobb unit and they have a pretty high reading dyno, I ended up hitting 335whp in 40 degree weather. Dan really knows a lot about the VQ motors and tuning in general.

Kthulu · 03-27-2011, 09:16 AM

Quote:

Originally Posted by darrinps

Do you have an after market CAI maybe?

That'll give you a "whoosh" sound.

In any case it is probably on the intake side and you just never noticed it before you listened to your car in an enclosed (where the dyno was run) setting maybe.

Nope no CAI and you can only hear it on the inside of the car and it seems to be coming more from the back of the car. I think the ultra-thin non existent sound deadening material might be letting in sounds you might not hear otherwise.

Kthulu · 03-27-2011, 09:17 AM

Quote:

Originally Posted by brian0128

How much was the install with the dyno runs?

PM sent

03-25-2011, 04:43 PM	#1 (permalink)
Kthulu Base Member Join Date: May 2010 Location: Gaithersburg, MD Posts: 11 Drives: '10 370Z M6 -sport- Rep Power: 15	Berk HFC Installed w/ Dyno Howdy folks. Was out earlier today at Atlantic Motorsports in Gaithersburg, MD where I had them install the Berk high-flow catalytic converters on my Z. I had them do a before and after dyno on my car so we could see what the gains where, if any. My Z already had the Stillen cat-back exhaust, and I don't have any dyno numbers for that add on. This is just "pre" and "post" Berk HFC with a Stillen exhaust. http://www.flickr.com/photos/30500379@N03/5559091541/ http://www.flickr.com/photos/30500379@N03/5559668994/ I have to say that I am pretty stoked to add almost 8 hp and 6 ft/lbs with such a simple upgrade. In addition to the power increase, the sound is amazing. Very little rasp at all, just a solid baritone note that is subtle at idle and wails at full throttle. Install went smooth; just one broken bolt. Nothing but good stuff to say so far; I wish I had done this upgrade sooner. EDIT: trying to get the dyno charts to load up in the post... grrr... In any case went from 289.6hp and 243.8 ft/lbs to 297.2hp and 250ft/lbs. Very impressed with the flat torque curve of this engine. Last edited by Kthulu; 03-25-2011 at 04:54 PM.

03-26-2011, 04:35 AM	#2 (permalink)
B.A.Q Enthusiast Member Join Date: Feb 2011 Location: Phoenix,Az Posts: 302 Drives: Touring 370z Rep Power: 15	I got the same HFCs and I agree on how awesome it sounds I wished I did a befor and after dyno __________________ SOLD!! 09 370z Touring MT: GReddy Ti-C CBE - Berk HFC - Stillen 3G CAI '11 Mustang GT/CS 5.0 MT

03-26-2011, 04:38 AM	#3 (permalink)
Footloose301 A True Z Fanatic Join Date: Apr 2010 Location: Naples, FL Posts: 2,659 Drives: 40th Rep Power: 22	Sooo close. Test pipes would have brought you to 300hp even haha. Good job though man. I wish I got a baseline dyno before modding mine. I can't decide whether or not to get test pipes or HFCs. __________________ 2010 40th Anniversary 370Z

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03-26-2011, 08:13 PM	#4 (permalink)
Kthulu Base Member Join Date: May 2010 Location: Gaithersburg, MD Posts: 11 Drives: '10 370Z M6 -sport- Rep Power: 15	Yeah, 300np was so close I could taste it. I've noticed another sound besides the deeper exhaust note. When your really, really on the gas, there is a audible "woosh" under the note of the exhaust. Doesn't sound like any exhaust leak I've heard before.

03-26-2011, 09:33 PM	#6 (permalink)
brian0128 Base Member Join Date: Feb 2011 Location: Crofton, MD Posts: 249 Drives: 09 370Z Sport 6MT Rep Power: 15	How much was the install with the dyno runs?