Note: Before I begin I'd like to state couple things.
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This is the Technical and Modifications Forum. Discuss the racing abilities of the both cars, technical aspects, modding potential, whatever.
However, if anybody posts this dumba$$ "It's still 20HP difference" or whatever crap, it will show his ignorance, lack of knowledge and inability to follow technical aspects and information obtained DYNO and 1/4 mile slips. Please show respect to both G35 cars on this board.
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Now, lets start with another important note:
All numbers below are based on both STOCK cars (SAE) DYNO obtained from members.

G35 auto coupe dyno: 222whp (considering average based on 220-225)
G35 auto sedan dyno: 217whp (considering average based on 216-218)
Difference: is what? 5whp [img]/w3timages/icons/smile.gif[/img].

Comparison:
Note: Manual cars drivetrain loss is between 15-18% and auto between 20-22%.

Coupe: ------------------
222whp / 0.79 (21% auto average drivetrain loss) = 281 crank hp

Sedan: ------------------
217whp /0.79 (21% auto average drivetrain loss) = 275 crank hp.

Now keep in mind an additional weight difference by coupe being heavier then sedan.

Source - Infiniti.com
G coupe: 3,422 lbs - auto leather model
G sedan: 3,369 lbs - auto leather model
----------------------------------------
53 lbs auto vs. auto in sedan favor

So as you can see the sedan horsepower is underrated to be 260 as Infiniti claims and looks like 275.

1/4 mile times has been observed:
AUTO coupe 14.3-14.6
AUTO sedan 14.3-14.6
The difference based on launch RPM, MM or AUTO mode, track condition, etc.

Finally, at the time of posting I only had numbers for both AUTO only. However if 350Z typically DYNO at 233-234whp and 6spd G35 coupe and sedan not that far off I dont think it would be too difficult to calculate actual numbers by yourself and compare both again.

By the way, the weight difference in that regards is minimal.
Source - Infiniti.com
G coupe: 3,435 lbs - 6MT leather model
G sedan: 3,398 lbs - 6MT leather model
--------------------------------------
37 lbs manual vs. manual in sedan favor

Good luck!

2004 G35s auto (bone stock)
-----------------------------------
2002 s/c Accord V6 auto
so far best 1/4 mile - 13.9@101.8
coming soon: custom internals, cams, performance auto tranny w/LSD

 

<font color=red>Too all: Anyone responding to this thread will do so in a friendly, and constructive manner.
We've had too many arguments in this type of thread.
So be nice. We're watching closely.</font color=red>

<font color=red>GSM</font color=red>
<font color=red>GSM</font color=red>
<font color=black>Silverstone Coupe</font color=black>

 

i like it, good post.

High Point NC
04 G35 6MT Sedan, Diamond Graphite on Black.
Arrived on 10/20/03
Mods include.
20% tint
INJEN CAI, black
clear bra
clear corners

Rip 2002 Altima 2.5s blk/grey 5/30/02-10/7/03

 

Who cares?

Lets stop beating this dead horse.

 

Clint (THX723)

 

I don't think it's quite beating the dead horse, as it's never been diffinitively answered, I believe. I regret making that animation now [img]/w3timages/icons/wink.gif[/img] Many post based on their opinions and seat-of-their-pants dynos... someone has done the math this time. Good post.

G

2003.5 Black w/ Willow G35
Premium / Sport / Aero / Winter / Navi / Tint

 

Who cares about only the horsepower values?

I think the comparison between HP, TQ, and RPM is more important. Dont forget that Horsepower, Torque, and RPM values are all important in this discussion and not only Horsepower since they are all directly linked.

Did you ever noticed that the Coupe is "listed" with 280HP @ 6200RPM and 270 lb-ft @ 4800 RPM.

The Sedan is "listed" at 260HP @ 6000RPM and 260 lb-ft @ 4800 RPM.

It is the shape of the dyno curve that is also important not just the peak horsepower values.

And did you think it was a coincidence that the torque and horsepower curves always tend to cross (equal each other) around 5200RPM?

Its all so complex and blended together why bother getting into it?

 

Here is my response on the topic

http://www.fanta.dk/showmovie.asp?mi...3-6B4882AE01C8

- Don't argue with idiots. They will bring you down to their level and beat you with experience.=P-

 

Horsepower and torque always cross at 5252rpms as one is a factor of another. You can take torque at any rpm and calculate hp and vice versa. If on a dyno they don't cross at 5252rpms, it's because the hp and torque scales are different.

Justin McClanahan
Heavily Modified 95 Infiniti G20
Working on a G35 Project Coupe
http://www.infinitipa.zoovy.com -&gt; www.EverythingG35.com

 

True, the dynos are good in this instance, so it's a little different than previous posts. Still, whenever posts like these are made, it's almost always construed as "sedan owners trying to justify their buys."

While these facts may bring a smile to my face (as a sedan owner), I don't think it's all that necessary since my sedan makes me smile all the time anyway. To each his own...


- NICNoobie

2003.0 AT Brilliant Silver Sedan
Premium Package\Graphite Leather\Signaling Clear Corners\AEM Intake (w/ Bypass Valve)

"Why are you my English not being understanding?"

 

The only problem I see is that there's an assumption that the drive train loss for the coupe and sedan are the same. Is it possible that the coupe and sedan have different losses?

 

good post. hard to argue with math and hard statistics. I have heard timing is different, but based on dynos and 1/4 runs, doesn't seem to make that much of a difference.

 

<blockquote><font class="small">In reply to:</font><hr>

I think the comparison between HP, TQ, and RPM is more important.

<hr></blockquote>

You'll get it soon if you all coupe owners still not convinced.

<blockquote><font class="small">In reply to:</font><hr>

Did you ever noticed that the Coupe is "listed" with 280HP @ 6200RPM and 270 lb-ft @ 4800 RPM.

The Sedan is "listed" at 260HP @ 6000RPM and 260 lb-ft @ 4800 RPM.

<hr></blockquote>.

You still believe its true? Ok I will prove your wrong.



2004 G35s auto (bone stock)
-----------------------------------
2002 s/c Accord V6 auto
so far best 1/4 mile - 13.9@101.8
coming soon: custom internals, cams, performance auto tranny w/LSD
<P ID="edit"><FONT class="small"><EM>Edited by gsedanman on 01/15/04 04:36 PM.</EM></FONT></P>

 

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