DDM Project 370Z

KillBill · 07-16-2009, 04:22 AM

Mike, does the LSD fit the G37?? Sorry I dont know Sh%$ about mechanics but I loVeZ to drive fast

M.Bonanni · 07-16-2009, 10:45 AM

Quote:

Originally Posted by AK370Z

Saw this in a blog and thought I would share.

Latest News / Blog - Carbonetic UK Ltd

Nice! Thanks for posting that.

Quote:

Originally Posted by KillBill

Mike, does the LSD fit the G37?? Sorry I dont know Sh%$ about mechanics but I loVeZ to drive fast

Yes it should be the same differential in the G37.

M.Bonanni · 07-16-2009, 06:32 PM

Here is the dyno for the Berk Cat-Back w/H-Pipe. 10whp and 5wtq above the highest baseline numbers. The X-Pipe will go on tomorrow and then we will dyno that. The X-Pipe is expected to produce more gains.

bboypuertoroc · 07-16-2009, 07:04 PM

^ Nice.

Togo · 07-16-2009, 09:04 PM

Normally I'd say +10RWHP for a CBE sounds good but is it just me but is only +10RWHP pretty week vs the +15-20 we are seeing with Stillen/F.I.? Is there a variable I'm not considering? I mean the baseline at 284RWHP was in similar conditions to the 294RWHP and may only account for a 1-2RWHP difference.

M.Bonanni · 07-16-2009, 09:11 PM

Quote:

Originally Posted by Togo

Normally I'd say +10RWHP for a CBE sounds good but is it just me but is only +10RWHP pretty week vs the +15-20 we are seeing with Stillen/F.I.? Is there a variable I'm not considering? I mean the baseline at 284RWHP was in similar conditions to the 294RWHP and may only account for a 1-2RWHP difference.

Yeah there are a few things to consider. First, the baseline was performed with high flow cats which free up a lot of the bottleneck in the exhaust already. If this exhaust were tested with the stock cats, the overall numbers would be lower but the gains would most likely be bigger (law of diminishing returns). Also consider that this is just one design we are testing. Berk is almost sure the X-Pipe will make more power than the H-Pipe. We will test the X-Pipe hopefully tomorrow afternoon.

travisjb · 07-17-2009, 12:56 AM

+ not a fan of measuring peak HP gains... would rather see the chart... looks like you have solid gains all the way across... would be great to have them all on the same chart... good stuff, Mike, thanks for sharing

MightyBobo · 07-17-2009, 05:47 AM

Quote:

Originally Posted by travisjb

+ not a fan of measuring peak HP gains... would rather see the chart... looks like you have solid gains all the way across... would be great to have them all on the same chart... good stuff, Mike, thanks for sharing

I spy with my eyes, a nice, fairly flat torque curve - look twords the end of the power band, it looks like it doesn't fall flat on its face, nearly as much. The HFC-only dyno looked like around ~210 ft/lbs, and the HFC+CBE looks like ~220. Nice, solid gains across the board.

However, I'd love to see the graph with RPM's reverenced and not MPH.

M.Bonanni · 07-17-2009, 09:49 AM

Quote:

Originally Posted by travisjb

+ not a fan of measuring peak HP gains... would rather see the chart... looks like you have solid gains all the way across... would be great to have them all on the same chart... good stuff, Mike, thanks for sharing

Thats the other part of the equation. Peak dyno numbers are good, but there are so many things that can affect your actual numbers, like 114 degree weather for example. Just look how much the peak numbers fluctuated on the three back to back baseline runs.

Quote:

Originally Posted by MightyBobo

I spy with my eyes, a nice, fairly flat torque curve - look twords the end of the power band, it looks like it doesn't fall flat on its face, nearly as much. The HFC-only dyno looked like around ~210 ft/lbs, and the HFC+CBE looks like ~220. Nice, solid gains across the board.

However, I'd love to see the graph with RPM's reverenced and not MPH.

Yes that is on thing we noticed as well is that the power now pulls until redline. Would be cool to get the rev limiter bumped up a bit to see if it keeps going! That will have to wait though. Technosquare, you listening?

M.Bonanni · 07-17-2009, 04:06 PM

Just got back from dyno test #2 with the berk cat-back/x-pipe. Gains jumped a little on both horsepower and torque. Weather was another blazing hot 112 degrees today at the dyno shop.

Dyno video coming soon. I think the X-Pipe setup sounds better too!

semtex · 07-17-2009, 04:12 PM

So a gain of almost 13whp from the x-pipe version. In 112 degree heat and with HFCs already installed. Not bad! Not bad at all!

M.Bonanni · 07-17-2009, 04:18 PM

Quote:

Originally Posted by semtex

So a gain of almost 13whp from the x-pipe version. In 112 degree heat and with HFCs already installed. Not bad! Not bad at all!

Yessir! After comparing to a few other exhaust company's results I am VERY impressed! For example, the F.I. exhaust gained 20.38whp over their baseline with the stock cats. Then they added their HFCs to the mix with the cat back exhaust and the HFCs only made an additional 3.54whp. Mainly because the cat-back already had freed up most of the bottleneck in the exhaust system. On the flip side, we tested the Berk HFC's with the stock cat-back and made 19whp, then made an ADDITIONAL 13whp with the cat-back exhaust. So if you take into consideration all of that then I think the Berk did very well compared to the competition!

semtex · 07-17-2009, 04:21 PM

Quote:

Originally Posted by DDMotorsports

Yessir! After comparing to a few other exhaust company's results I am VERY impressed! For example, the F.I. exhaust gained 20.38whp over their baseline with the stock cats. Then they added their HFCs to the mix with the cat back exhaust and the HFCs only made an additional 3.54whp. Mainly because the cat-back already had freed up most of the bottleneck in the exhaust system. On the flip side, we tested the Berk HFC's with the stock cat-back and made 19whp, then made an ADDITIONAL 13whp with the cat-back exhaust. So if you take into consideration all of that then I think the Berk did very well compared to the competition!

Well when you put it like that, I guess Berk did alright.

M.Bonanni · 07-17-2009, 04:22 PM

Quote:

Originally Posted by semtex

Well when you put it like that, I guess Berk did alright.

I am sure we will find out exactly how they do in comparison as soon as the F.I. exhausts start finding their way onto Zs which already have the Berk HFCs.

semtex · 07-17-2009, 04:25 PM

Quote:

Originally Posted by DDMotorsports

I am sure we will find out exactly how they do in comparison as soon as the F.I. exhausts start finding their way onto Zs which already have the Berk HFCs.

Or, conversely, when someone puts a Berk CBE onto a car with stock cats and does a before/after dyno.

07-16-2009, 06:32 PM	#3 (permalink)
M.Bonanni The370Z.com Sponsor Join Date: Nov 2008 Location: Las Vegas Posts: 2,575 Drives: Fast Rep Power: 1321	Here is the dyno for the Berk Cat-Back w/H-Pipe. 10whp and 5wtq above the highest baseline numbers. The X-Pipe will go on tomorrow and then we will dyno that. The X-Pipe is expected to produce more gains. __________________ MikeBonanni.com Twitter: http://www.twitter.com/MikeBonanni Facebook: http://www.facebook.com/MBonanni36 Function > Form

07-16-2009, 07:04 PM	#4 (permalink)
bboypuertoroc Enthusiast Member Join Date: Dec 2008 Location: Get out my way pimpin, HI Posts: 419 Drives: '06 Evo IX GSR Rep Power: 389	^ Nice. __________________ Evo IX GSR - FPBlack, 30psi... 10's on pump? Let's find out...

07-17-2009, 12:56 AM	#7 (permalink)
travisjb A True Z Fanatic Join Date: Jan 2009 Location: GSO Posts: 2,803 Drives: VIR Rep Power: 189	+ not a fan of measuring peak HP gains... would rather see the chart... looks like you have solid gains all the way across... would be great to have them all on the same chart... good stuff, Mike, thanks for sharing __________________ 2009 370Z #104 For Sale

07-17-2009, 04:06 PM	#10 (permalink)
M.Bonanni The370Z.com Sponsor Join Date: Nov 2008 Location: Las Vegas Posts: 2,575 Drives: Fast Rep Power: 1321	Just got back from dyno test #2 with the berk cat-back/x-pipe. Gains jumped a little on both horsepower and torque. Weather was another blazing hot 112 degrees today at the dyno shop. Dyno video coming soon. I think the X-Pipe setup sounds better too! __________________ MikeBonanni.com Twitter: http://www.twitter.com/MikeBonanni Facebook: http://www.facebook.com/MBonanni36 Function > Form

07-17-2009, 04:12 PM	#11 (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: 33	So a gain of almost 13whp from the x-pipe version. In 112 degree heat and with HFCs already installed. Not bad! Not bad at all! __________________ "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.

07-16-2009, 04:22 AM	#1 (permalink)
KillBill Base Member Join Date: Jul 2009 Location: San Bernardino Posts: 86 Drives: 08-G37S Rep Power: 17	Mike, does the LSD fit the G37?? Sorry I dont know Sh%$ about mechanics but I loVeZ to drive fast

07-16-2009, 09:04 PM	#5 (permalink)
Togo A True Z Fanatic Join Date: May 2009 Location: E. Northport, NY Posts: 7,597 Drives: Stuff Rep Power: 658	Normally I'd say +10RWHP for a CBE sounds good but is it just me but is only +10RWHP pretty week vs the +15-20 we are seeing with Stillen/F.I.? Is there a variable I'm not considering? I mean the baseline at 284RWHP was in similar conditions to the 294RWHP and may only account for a 1-2RWHP difference.