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Berk Technology HFCs gain +19whp + 18wtq!

Nice work DD... So, if I am reading the dyno sheet right, the torque went down slightly, but it is much smoother. Is that correct? Would the addition of a

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Old 02-03-2009, 11:26 PM   #16 (permalink)
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Nice work DD...

So, if I am reading the dyno sheet right, the torque went down slightly, but it is much smoother. Is that correct?

Would the addition of a Nismo type exhaust cause enough reduction in backpressure to lower the torque output? Would that sound be to obnoxious?? I may have to take clients for a drive sometime and I don't want the car to be too obnoxious.

HFCs + Mazdaspeed exhaust on the RX8 would have made it too loud for me. Will it be the same here?

Last edited by Endgame; 02-03-2009 at 11:42 PM.
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Old 02-03-2009, 11:52 PM   #17 (permalink)
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Quote:
Originally Posted by DDMotorsports View Post
I took the car to get dynoed when it was 100% stock and then took it back after the cats were installed. Nothing else was changed, I hadn't even gotten gas in between dynos. Not a whole lot of ways to fudge numbers. It's not even my dyno, its an independent shop that works solely on modern American muscle cars so I see no reason to fudge numbers. The numbers I posted are the numbers that make up the difference between MY baseline dyno and MY dyno after the HFCs. Hopefully as people order them, we will get some more independent dynos.
I understand, but somehow that just doesn't seem right to me. Not to be a pessimist but I haven't seen these kinds of gains on NA japanese vehicles with the simple addition of HFC's.

Anyhow I hope to be proven wrong with further independent dyno testing...
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Old 02-04-2009, 01:55 AM   #18 (permalink)
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The numbers speak for themselves on this one single car. It shows you the power potenital of the BERK HFC's. On the G37's, a 12rwhp gain is TYPICAL, So 19rwhp isn't impossible. I encourage you guys to do your own dyno's as well and see what they make on YOUR car.
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Old 02-04-2009, 02:13 AM   #19 (permalink)
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when u get the time...PM me a price
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Old 02-04-2009, 03:20 AM   #20 (permalink)
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nice gain . I read somewhere that VQ37VHR and VQ35HR can gain good numbers by changing things like HFC and Cat-back
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Old 02-04-2009, 10:33 AM   #21 (permalink)
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Quote:
Originally Posted by Endgame View Post
Nice work DD...

So, if I am reading the dyno sheet right, the torque went down slightly, but it is much smoother. Is that correct?

Would the addition of a Nismo type exhaust cause enough reduction in backpressure to lower the torque output? Would that sound be to obnoxious?? I may have to take clients for a drive sometime and I don't want the car to be too obnoxious.

HFCs + Mazdaspeed exhaust on the RX8 would have made it too loud for me. Will it be the same here?
Do you have the Nismo exhaust already? If you do and its too quiet, then the HFCs are the next logical step. If you don't, get just the HFCs first and then decide if you want the Nismo exhaust. I haven't heard the Nismo exhaust in person to be able to tell you how loud it will be.
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Old 02-04-2009, 10:34 AM   #22 (permalink)
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when u get the time...PM me a price
PM sent.
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Old 02-04-2009, 03:38 PM   #23 (permalink)
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Nice gains. Awesome in fact for HFCs.

No reason for any doubt in the numbers here... it's just a before and after dyno. It's all testing. YOU'RE results might vary since it's a different car on a different dyno, same as anyone else.
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Old 02-09-2009, 03:23 PM   #24 (permalink)
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Do you have a dyno of the same car with the Berk Test Pipes?? Just curious to see the difference between their HFCs and Test Pipes.....
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Old 02-09-2009, 03:24 PM   #25 (permalink)
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Quote:
Originally Posted by Jimmydean View Post
Do you have a dyno of the same car with the Berk Test Pipes?? Just curious to see the difference between their HFCs and Test Pipes.....
Nope, nobody with a 370Z has the test pipes yet.
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Old 02-25-2009, 11:27 PM   #26 (permalink)
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*no disrespect intended DDM, just looking for more perspective*

My question through PM was if I'll have any fitment or other issues with a Cali spec car. Maybe someone can shed some light? I'm asking because when I bought headers and a cat-back for my 03 eclipse the hangers had to be reset. I won't be living in California too much longer so I could just wait and buy the car in another state, but I'd rather not if I don't have too.
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Old 02-26-2009, 03:37 AM   #27 (permalink)
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My Thoughts:

These Berk HFCs along with a Stillen Gen3 CAI, and either Stillen or GTM Catback should clear the fairladys throat quite well.

Well enough to yield a possible 28 to 34 rwhp gain, im guessing 32rwhp total.

These mods with a good tune should get us in the 39 to 44 rwhp range!

my numbers are total guesses mind you
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Old 02-26-2009, 09:14 AM   #28 (permalink)
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Quote:
Originally Posted by DDMotorsports View Post
I took the car to get dynoed when it was 100% stock and then took it back after the cats were installed. Nothing else was changed, I hadn't even gotten gas in between dynos. Not a whole lot of ways to fudge numbers. It's not even my dyno, its an independent shop that works solely on modern American muscle cars so I see no reason to fudge numbers. The numbers I posted are the numbers that make up the difference between MY baseline dyno and MY dyno after the HFCs. Hopefully as people order them, we will get some more independent dynos.
My 350Z HR with just cats and adjusting my UPREV tune went from 265 rwhp to 273 rwhp and from 232~ tq to 245 tq. This was with just Berk HFCs on a stock exhaust stock intake HR 350Z NISMO.
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Old 02-26-2009, 01:56 PM   #29 (permalink)
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Quote:
Originally Posted by u155282 View Post
*no disrespect intended DDM, just looking for more perspective*

My question through PM was if I'll have any fitment or other issues with a Cali spec car. Maybe someone can shed some light? I'm asking because when I bought headers and a cat-back for my 03 eclipse the hangers had to be reset. I won't be living in California too much longer so I could just wait and buy the car in another state, but I'd rather not if I don't have too.
These will fit all 370Z's. There is no difference between any of these 370Z's. CA, 49 state, JDM, European, etc. They are all the same HFC wise.
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Old 02-26-2009, 03:28 PM   #30 (permalink)
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Quote:
Originally Posted by BerkTech View Post
These will fit all 370Z's. There is no difference between any of these 370Z's. CA, 49 state, JDM, European, etc. They are all the same HFC wise.
gd so I can buy HFC for my car in future
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