I was curious if anyone had a similar experience with their G. I had a 2004 350z for several years before trading it in for a G37 coupe(manual). It seems like the throttle reacts more slowly on the G and was curious what other peoples impressions are? I notice this most when taking off or downshifting. In the Z when I downshift, I could tap the throttle, get a nice rpm "blip" to easily downshift. In the G, it doesn't seem to happen as fast and I feel that I can't just tap the gas, but rather hold it down longer to get the same rpm "blip". Has anyone had a similar experience and if so, is there an easy solution for this? It seems like the Z throttle response was linear versus the G which feels exponential.

 

You are correct on that one. I recently drove my friends Z and said the same thing to him. A slight tap on his throttle get's the rpm pretty high. Wondering if our 7500 redline compared to The Z 6500 redline has anything to do with the throttle response

 

Does the 2004 have drive by wire? The g37 does and it's a bit laggy.

Also if your G has some miles on it, it could be dirty throttle bodies.

 

I bought the 350z new and sold it with about 75K miles. I also bought the G new and it seems more sluggish compared to the Z when I sold it. I am curious if a lighter flywheel might help. Honestly, I don't think I'd notice it if the Z didn't rev so quickly.

 

What year g37 is in question?

 

You are comparing 3.5 with the 3.7 VQ. Not the same engine; the 3.7 VQ is a VVEL engine-read the sticky thread on VVEL. A bit beyond drive by wire. I have a neighbor with a 2010 370Z roadster and the drivetrain is identical to my G37. If there is any difference in the drivetrain from the Z to the G, I can't detect it.

Greg

 

does this have anything to do with the throttle restriction that some have removed with (Hypertech? UpRev?) tune or is that something different?

 

I may be wrong, but I believe its something to do with the fly-by-wire and VVEL combo.. Mostly since the VVEL is constantly adjusting, and with the ECU doing all the math running in the background, there's bound to be a bit of a lag vs the previous 'simpler' designs..

for those interested about the technical stuff, here's a nice read.. also, notice the complexity of the VVEL control system in section 3-1,

http://www.nissan-global.com/EN/DOCU...0713VVEL-e.pdf

 

A bit beyond drive by wire

 

I just traded in my 04 350 Roadster for an 08 G37S and I agree the low end torque is better with the Z. Although around 3500 I get a serious kick in the G that I never saw in the 350. But I've found the gear box to be much smoother and more refined. Its definitely related to the higher rev limit, if you look at a dyno graph you'll notice the hp:rev arch on the G is a bit wider.
But meh, i'll trade the low end and response times of the Z for the luxury of the G anyday!

 

In the 350 or the G?