Berk Technology 370Z Cat-Back exhaust GB 1&2 Updates!

370Zsteve · 12-31-2009, 07:29 AM

Quote:

Originally Posted by Billy830

I think that the data supplied for dyno test is suspect to me. After 23 years in aero space and calibrating orifice plates, venturis and other flow devices. the outside ambient air temperature or the air getting to the filter is the controlling factor in how much hp is to be gained. The colder the outside air temperature air density increases so volume increases and greater HP gains.
The hotter the ouside air temp density decreases and less HP gains. Radiated heat from the engine compartment has to play aprt in this also. The tube have to stay at least the same as the inlet air From what I gather most of the testing has been done in California and I have not seen a lot of data. I would like to see some dyno testing here in Florida. Then some road testing on the highway and see what the cai inlet temps are and temps after mass flow meter especially when your sucking in road temps that get to 120degf. A 30deg swing in ambient temp can really effect the out come. I know that I may be nit picking but I truly believe that HP gains are going to be erratic from one part of the country to the other. 1 don't have a clue as to what that would be but I would guess that it could be as much as a 5HP spread.

What is does air temp at the throttle body need to be to produce 18 hp gains consistantly?

Let me kown if I am on the wrong track with any thing or has my engineering been getting in the way and just old nit picking. Working on Jet engines we were always trying to squeeze the most thrust at any conditions. Wether it was at sea level or altitude.

Considering this is a thread for an exhaust, ya I'd say you are on the "wrong track".

FuszNissan · 12-31-2009, 07:31 AM

Quote:

Originally Posted by MightyBobo

What does that have to do with the group buy for the Berk exhaust system, Billy?

Shift · 12-31-2009, 07:43 AM

Need update

Billy830 · 12-31-2009, 08:38 AM

Sorry I posted it in the wrong area, my bad.

theDreamer · 12-31-2009, 08:52 AM

Quote:

Originally Posted by Shift

Need update

roplusbee · 12-31-2009, 10:29 PM

Awww. I was thinking, "yes an update." Oh well.

370Zsteve · 01-01-2010, 08:14 AM

There is another thread that has updates:

Berk Cat-Back Exhaust GB #2!!!

theDreamer · 01-11-2010, 03:50 PM

Bump!

Shift · 01-15-2010, 05:16 PM

Hey Berk it's Mid January what gives???

MightyBobo · 01-15-2010, 06:00 PM

Quote:

Originally Posted by Shift

Hey Berk it's Mid January what gives???

Company they outsourced their tips to apparently didnt get em right still.

Shift · 01-24-2010, 09:46 AM

I got a PM from Mike yesterday. For the frist GB shipping date is Mid February. The people who are paid in full will be shipped first.

theDreamer · 01-24-2010, 09:48 AM

Quote:

Originally Posted by Shift

I got a PM from Mike yesterday. For the frist GB shipping date is Mid February. The people who are paid in full will be shipped first.

Yep, glad I paid in full the first day I paid, do not have to worry about.

theDreamer · 02-03-2010, 03:53 PM

azn370z · 02-03-2010, 04:07 PM

I drove into a parking garage and I could not hear my exhaust.

I was next to a Aston Martin and I could hear his exhaust as he slowly drove away. Now I'm looking Forward to get my exhaust soon.

theDreamer · 02-03-2010, 04:08 PM

Quote:

Originally Posted by azn370z

I drove into a parking garage and I could not hear my exhaust.

I was next to a Aston Martin and I could hear his exhaust as he slowly drove away. Now I'm looking to get my exhaust soon.

Same here, my car is fully broken in (12k) and I can definitely tell the car is screaming to be opened up but those screams are muffled by such a weak exhaust systems.

12-31-2009, 07:43 AM	#48 (permalink)
Shift Base Member Join Date: Apr 2009 Location: Glen Rock,PA Age: 59 Posts: 220 Drives: (370-Z MT Blue 7A) Rep Power: 18	Need update __________________ 2009 Mt Blue 7AT * GTSpec 4 point brace * Berk HFC * Stillen GEN III * Berk CBE * Forgestar F-14 * NISMO S Tuned Spoiler

12-31-2009, 10:29 PM	#51 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 24	Awww. I was thinking, "yes an update." Oh well. __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL

01-01-2010, 08:14 AM	#52 (permalink)
370Zsteve A True Z Fanatic Join Date: Sep 2009 Location: Gold Coast CT Posts: 10,599 Drives: 2019 Corvette G.S. Rep Power: 44	There is another thread that has updates: Berk Cat-Back Exhaust GB #2!!! __________________ SOLD MY Z MARCH 2018 - another Core OG moves on - new ride 2019 Z Corvette Grand Sport - no mods necessary but already have eyes on HFC and intakes LOL IT NEVER ENDS.

01-11-2010, 03:50 PM	#53 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4212	Bump! __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

01-15-2010, 05:16 PM	#54 (permalink)
Shift Base Member Join Date: Apr 2009 Location: Glen Rock,PA Age: 59 Posts: 220 Drives: (370-Z MT Blue 7A) Rep Power: 18	Hey Berk it's Mid January what gives??? __________________ 2009 Mt Blue 7AT * GTSpec 4 point brace * Berk HFC * Stillen GEN III * Berk CBE * Forgestar F-14 * NISMO S Tuned Spoiler

12-31-2009, 08:38 AM	#49 (permalink)
Billy830 Base Member Join Date: Dec 2009 Location: Port Saint Lucie Fl. Age: 79 Posts: 31 Drives: 370Z Mag Black 6sp m Rep Power: 17	Sorry I posted it in the wrong area, my bad.

01-24-2010, 09:46 AM	#56 (permalink)
Shift Base Member Join Date: Apr 2009 Location: Glen Rock,PA Age: 59 Posts: 220 Drives: (370-Z MT Blue 7A) Rep Power: 18	I got a PM from Mike yesterday. For the frist GB shipping date is Mid February. The people who are paid in full will be shipped first. __________________ 2009 Mt Blue 7AT * GTSpec 4 point brace * Berk HFC * Stillen GEN III * Berk CBE * Forgestar F-14 * NISMO S Tuned Spoiler

02-03-2010, 03:53 PM	#58 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4212	__________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

02-03-2010, 04:07 PM	#59 (permalink)
azn370z A True Z Fanatic Join Date: Nov 2008 Location: Seattle Posts: 1,722 Drives: z34 - R1 Rep Power: 491	I drove into a parking garage and I could not hear my exhaust. I was next to a Aston Martin and I could hear his exhaust as he slowly drove away. Now I'm looking Forward to get my exhaust soon. __________________ 2010 k23 H&R sport springs / Spc rear camber arms / SSR SP1 / Berk cbe / Varis cf lip / Nismo S-Tune side skirts

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