Berk Exhaust Production with X-Pipe

MightyBobo · 03-17-2010, 08:53 PM

Quote:

Originally Posted by ChrisSlicks

Dyno's only measure torque, HP is calculated.

But basically you're saying that the middle of your graph is screwy and so you may have not got an accurate peak torque measurement?

Well, right. Basically everyone peaks HP somewhere around 7K and it levels off. Mine was supposedly at 7.5K and still rising, and I barely hit 275. Dynojet only registered 205ish torque or so. So, something didnt seem right. Never did get a response from Altered Atmosphere on this...

ChrisSlicks · 03-17-2010, 09:11 PM

Quote:

Originally Posted by MightyBobo

Well, right. Basically everyone peaks HP somewhere around 7K and it levels off. Mine was supposedly at 7.5K and still rising, and I barely hit 275. Dynojet only registered 205ish torque or so. So, something didnt seem right. Never did get a response from Altered Atmosphere on this...

HP is calculated (continuously) as Torque * RPM / 5252.

So if your peak torque measurement is low then there should also be a dip in the HP curve between 4-5k rpm. The torque plot and HP plot always cross over at 5252 rpm provided they are plotted on the same scale.

schrute · 03-18-2010, 02:26 AM

Quote:

Originally Posted by 370zdub

I will probably be at a dyno day April 24, but until then I'm SOL on getting a dyno run in.

Hey Dub,

Where's the dyno day?

370zdub · 03-18-2010, 02:41 AM

Hey man, Its in Grand Junction, CO, from what I have been told. I will try to get some official details and let you know by pm man!

willtangclan · 03-19-2010, 08:08 PM

Anyone have a video with stock cats? Tracking number says Thursday but i'm dying to hear how it sounds.

1slow370 · 03-21-2010, 01:22 AM

well i'll be dynoing my car unfortunately it will be totally useless as it will be affected by the new intake flywheel testpipes, as wheel as all the other crap i have done.

BOLIO 671 · 03-21-2010, 11:33 AM

Quote:

Originally Posted by 1slow370

well i'll be dynoing my car unfortunately it will be totally useless as it will be affected by the new intake flywheel testpipes, as wheel as all the other crap i have done.

So you don't have a base to go off of? Still would be nice to see what your Z puts out though! Awesome that you guys have access to Dyno's...We had a Dyno shop here a few years back...Unfortunately the owner of the Dyno shop passed away in a bad car crash ( R. I. P. Will), and no one ever picked up after it..

1slow370 · 03-22-2010, 03:44 PM

nah never got out and did a baseline it's looking like it'll be a while anyway still waiting on some parts for the rear end to arrive.

theDreamer · 03-26-2010, 10:05 AM

Forgot to ask this, what size resonators come in the Berk exhaust? Anyone measure or remember them posting this info?

Thanks.

370Zsteve · 03-26-2010, 03:11 PM

semtex · 03-26-2010, 03:16 PM

Steve, do you have anything else besides the CBE? Like HFCs?

370Zsteve · 03-26-2010, 03:22 PM

Quote:

Originally Posted by semtex

Steve, do you have anything else besides the CBE? Like HFCs?

Nope that is with stock cats. The camera was only about 4 feet from the pipes.

370Zsteve · 03-26-2010, 03:23 PM

Quote:

Originally Posted by theDreamer

Forgot to ask this, what size resonators come in the Berk exhaust? Anyone measure or remember them posting this info?

Thanks.

No idea Dreamer, but there are some good pics in the threads, you might be able to get a feel for the size.

semtex · 03-26-2010, 03:42 PM

Quote:

Originally Posted by 370Zsteve

Nope that is with stock cats. The camera was only about 4 feet from the pipes.

It doesn't sound bad, but adding HFCs would give it a deeper tone.

370Zsteve · 03-26-2010, 03:43 PM

Quote:

Originally Posted by semtex

It doesn't sound bad, but adding HFCs would give it a deeper tone.

no question about it. but what about volume? I'm pretty happy with the volume as it is.

03-18-2010, 02:41 AM	#304 (permalink)
370zdub Track Member Join Date: Jun 2009 Location: UT Posts: 628 Drives: 09 370z 6mt,10 Ford Rep Power: 17	Hey man, Its in Grand Junction, CO, from what I have been told. I will try to get some official details and let you know by pm man! __________________ 2010 Ford 6.4L Power Stroke Diesel: 588whp/1082wtrq 2007 Dodge 6.7L Cummins Diesel: 788whp/1405wtrq, runs 12's @ 7400lbs, Still miss my 370z!

03-21-2010, 01:22 AM	#306 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	well i'll be dynoing my car unfortunately it will be totally useless as it will be affected by the new intake flywheel testpipes, as wheel as all the other crap i have done. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

03-22-2010, 03:44 PM	#308 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	nah never got out and did a baseline it's looking like it'll be a while anyway still waiting on some parts for the rear end to arrive. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

03-26-2010, 10:05 AM	#309 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4210	Forgot to ask this, what size resonators come in the Berk exhaust? Anyone measure or remember them posting this info? Thanks. __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

03-26-2010, 03:11 PM	#310 (permalink)
370Zsteve A True Z Fanatic Join Date: Sep 2009 Location: Gold Coast CT Posts: 10,599 Drives: 2019 Corvette G.S. Rep Power: 43	__________________ 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.

03-19-2010, 08:08 PM	#305 (permalink)
willtangclan Base Member Join Date: Nov 2009 Location: mars Posts: 49 Drives: 09 370z Rep Power: 16	Anyone have a video with stock cats? Tracking number says Thursday but i'm dying to hear how it sounds.

03-26-2010, 03:16 PM	#311 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 54 Posts: 5,995 Drives: People to drink Rep Power: 32	Steve, do you have anything else besides the CBE? Like HFCs? __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

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