I just traded in a 2003 G35 sedan for a 2004 Coupe. On the highway a few times I have approached 100mph, and it sounds like the engine is working a little higher in the RPM range. I have no hard data on this just a feeling. I was wondering if anyone has notice or will take the time to notice at what RPM their coupe is running in the 90 to 100 mph range. I just wanted to make sure I'm not experiencing any defect in my new car. Thanks.

 

In 6th gear, you should be around 4k rpms at 100 mph... I just drove from LA to Bay Area yesterday and was up around 90 - 100 mph and that is what mine was at...

Mods:
Aluminum racing pedals
JWT Pop Charger / Z-tube Combo

 

Are you sure you just aren't noticing more engine noise due to the coupe dual exhaust? I also traded in a G sedan for the coupe, and I noticed the same thing. In my case, though, it was just getting used to the more agressive exhaust tone.

<font color=blue>04 DG/G Coupe - St. Louis, MO
Premium, Aero, Performance, Splash Guards
Tint - Grounding Kit - UItinon 6000k - Rebadged
Clear Corners - Tein S-Tech- K&N Drop-In</font color=blue>

 

It very well may be just the change in tone. I am around 4K which from the above post seems to be normal.

 

I'm pretty sure when I've got cruise control maxd at 90mph it's around 3400.

Russ

Black 6MT Coupe
Jax, FL
PS2 and Headrest Monitors Thread

 

Thats nothing compared to my old RX-8. 6th gear was 18 mph per 1000 rpm.

 

I can tell you that my A/T Sedan was about 2100 rpm, and my A/T Coupe is about 2300 rpm at 60 mph.
I'm not sure what the rear axle ratios are in the 2 rides but I believe the Sedan has about a 3.3/1, and the Coupe has a 3.4/1 which will account for the slightly higher rpm's in the Coupe.
The 6m/t rides have different transmission ratios too resulting in different rpm's in top gear between the 2 rides.

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

 

Mr. Elusive, I got a chuckle from your response. I do expect my RPM's to be high at 100. My concern was really not that my RPM's were that high, but that it seemed to be different from my experience with my sedan. Both are automatic. I really think after reading all of the posts, that the main reason is a slightly different ratio in the two, and then the extra horse power and exhaust system. I think the two just have a different tone. My experience was not that I knew any difference existed in the RPM's of both, but that it just sounded like it was reving higher.

 

The RPMs are even higher at 140 mph, about 5200 in 6th gear in 6MT in my experience. [img]/w3timages/icons/shocked.gif[/img]

Dr. Jim
2003 DesertPlatinum/Graphite G35C 6MT
Aero/Prem/Nav/HyperGround/XMSat/BSM/Tint/ClearBra/CG/NismoChromeShifter/RacePedals/Z-tube/JWTPopCharger