How did I dyno this high? (not that I am complaining)

esfourteen · 08-21-2011, 08:57 PM

PM dyno reads a bit high, I put down like 342 there last week, most people with bolt-ons/tune do the same.

chuckd05 · 08-21-2011, 09:09 PM

I thought its just the NY/NJ air adds 30 horsepower, no ?

6MT · 08-21-2011, 09:36 PM

Quote:

Originally Posted by MattP725

I was at performance motorsports this weekend (great trip btw) and my original base was low 330's and after tune I was low 340s (can't remember if it was 342 or 343 but had a 10hp gain).

I have just the mods below...

Now listen I am not complaining but how is this possible? I have the sheet I can scan and upload once I hook up my scanner.

This was on a mustang dyno btw.

Inaccurate dyno. But that's my opinion. And opinions are like a$$holes. Everyone has one. My personal belief is that the dyno you got those numbers from has some real "issues" with "real-world" factors. Wheel weights, temperatures, altitude, and I could go on.

Let me say that IMHO, your numbers are very inflated. And There are endless arguments about these number "issues". In fact the only arguments that garner more responses (and emotions) are the oil threads.

So take your results for what they are. And try and grow some thick skin. You'll need it.

(That's why I never post my numbers or charts on this or any other forum. They cause too many arguments.)

ANMVQ · 08-22-2011, 06:55 AM

Quote:

Originally Posted by 6MT

Inaccurate dyno. But that's my opinion. And opinions are like a$$holes. Everyone has one. My personal belief is that the dyno you got those numbers from has some real "issues" with "real-world" factors. Wheel weights, temperatures, altitude, and I could go on.

Let me say that IMHO, your numbers are very inflated. And There are endless arguments about these number "issues". In fact the only arguments that garner more responses (and emotions) are the oil threads.

So take your results for what they are. And try and grow some thick skin. You'll need it.

(That's why I never post my numbers or charts on this or any other forum. They cause too many arguments.)

Agreed with the above, Number are VERY infalted. Sounds like the had a HUGE correction factor.. When dynoing try to have them set the factor to or as close to 1 as possible to try to get "Real" World numbers .

partsguy · 08-22-2011, 02:35 PM

Quote:

Originally Posted by 6MT

And try and grow some thick skin. You'll need it.

Good advice.

Red__Zed · 08-21-2011, 11:24 PM

6MT · 08-21-2011, 11:24 PM

Quote:

Originally Posted by Red__Zed

Red__Zed · 08-22-2011, 09:53 AM

Quote:

Originally Posted by 6MT

Why are you agreeing?

6MT · 08-22-2011, 09:55 AM

Quote:

Originally Posted by Red__Zed

Why are you agreeing?

Because this is a silly argument.

Cmike2780 · 08-22-2011, 10:03 AM

Quote:

Originally Posted by 6MT

Because this is a silly argument.

MattP725 · 08-22-2011, 12:09 AM

Well the numbers weren't the point. My baseline was 333 and the tune brought me to 343 so that's a solid gain on the uprev. Whether I am truly at 343 or 315 or 295 really is irrelevant like everyone says since there is no universal dyno standard with identical atmospheric conditions.

At the end of the day my goal was the tune which went better than expected. I def wanna get some track nums tho.

Jordo! · 08-22-2011, 06:15 AM

Going by the baseline numbers, those values probably better reflect what you are making at the crank rather than what you are putting down...

What kind of dynamometer?

On a dynojet, that would probably be around 300 with those mods and a tune.

370Z's make mid to high 270's bone stock on a dynojet with SAE correction; higher if the Nismo.

V8Killer · 08-22-2011, 06:33 AM

Quote:

Originally Posted by Jordo!

Going by the baseline numbers, those values probably better reflect what you are making at the crank rather than what you are putting down...

What kind of dynamometer?

On a dynojet, that would probably be around 300 with those mods and a tune.

370Z's make mid to high 270's bone stock on a dynojet with SAE correction; higher if the Nismo.

I wouldn't say that all 370z's make that bone stock. When I did mine in NC on the coast about 20ft above sea level SAE corrected 285 is what I was doing on a Dyno Jet. The shop is very reputable and their dyno is on par with a domestic shop that is very reputable in my area as well. I wouldn't say 300 at the crank b/c 370z's are rated 332 at the crank off the assembly line. Do I think those numbers are a little high yes, we all agree on that even the OP. I agree with take it to the track and see what she does. Just my 2cents though.

VaGntlmn · 08-22-2011, 08:37 PM

okay, so I'm a little slow; took me 12 hours to come up with this.
The dyno was a mustang dyno? That explains everything.
"Everybody knows Mustangs are highly over-rated"

MattP725 · 08-22-2011, 07:11 AM

By base I meant prior to tune. I still had my mods.

08-21-2011, 08:57 PM	#1 (permalink)
esfourteen A True Z Fanatic Join Date: Mar 2010 Location: LI, NY Posts: 1,375 Drives: 40th TT Rep Power: 19	PM dyno reads a bit high, I put down like 342 there last week, most people with bolt-ons/tune do the same. __________________ Build Thread \| GTM TT Install Thread \| Engine Build Thread

08-21-2011, 09:09 PM	#2 (permalink)
chuckd05 A True Z Fanatic Join Date: Oct 2009 Location: NY Posts: 2,391 Drives: No longer a Z Rep Power: 20	I thought its just the NY/NJ air adds 30 horsepower, no ? __________________ 09 370Z 6M PW - FBO Best 1/4 mile = 12.926 @ 109 SOLD -- 08 BMW 135i - FBO 12.1@120mph SOLD -- white 09 e92 335 Coupe Mtech - 11.9 @ 119 :-)

08-22-2011, 06:15 AM	#12 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	Going by the baseline numbers, those values probably better reflect what you are making at the crank rather than what you are putting down... What kind of dynamometer? On a dynojet, that would probably be around 300 with those mods and a tune. 370Z's make mid to high 270's bone stock on a dynojet with SAE correction; higher if the Nismo. __________________ Enjoy it. Destroy it.

08-22-2011, 08:37 PM	#14 (permalink)
VaGntlmn Enthusiast Member Join Date: May 2010 Location: Centreville, Va Age: 64 Posts: 378 Drives: '10 Tour/Sport, 6MT Rep Power: 15	okay, so I'm a little slow; took me 12 hours to come up with this. The dyno was a mustang dyno? That explains everything. "Everybody knows Mustangs are highly over-rated" __________________ Bill 2010 370z; Tour/Sport; 6mt; BlackCherry/Grey; 318 rwhp; 265 lbs rwtq. To view a list of my mods, click here; To view a photo journal of the mods, click here.

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08-21-2011, 11:24 PM	#6 (permalink)
Red__Zed A True Z Fanatic Join Date: Jul 2010 Location: window seat Posts: 28,940 Drives: Mostly on two wheels Rep Power: 120

08-22-2011, 12:09 AM	#11 (permalink)
MattP725 A True Z Fanatic Join Date: May 2011 Location: Toms River, NJ Posts: 1,904 Drives: 2010 40th Rep Power: 17	Well the numbers weren't the point. My baseline was 333 and the tune brought me to 343 so that's a solid gain on the uprev. Whether I am truly at 343 or 315 or 295 really is irrelevant like everyone says since there is no universal dyno standard with identical atmospheric conditions. At the end of the day my goal was the tune which went better than expected. I def wanna get some track nums tho.

08-22-2011, 07:11 AM	#15 (permalink)
MattP725 A True Z Fanatic Join Date: May 2011 Location: Toms River, NJ Posts: 1,904 Drives: 2010 40th Rep Power: 17	By base I meant prior to tune. I still had my mods.