I can't figure it out guys, I installed the Z-tube which is supposed to open the intake up to better breathing. I was expecting to get better gas mileage but I haven't. Do you think it has anything to do with the fact that I have been flooring it constantly to hear the engine roar?

Jim
'03.5 Sedan
Brilliant Silver/Graphite
6MT/ Premium package
Sport tuned suspension
Aerodynamic Body Kit
Navigation and Satellite Radio
Z-Tube

 

You are joking, right?

It's hard to resist the urge to drive with a heavy foot just to hear the intake, isn't it?

<font color=red>2003.5 Garnet Fire/Graphite G35 6MT Sedan</font color=red> - R.I.P.
Premium Package • Navigation • Winter Package • Aero Package • 350Z intake duct • Stillen high-flow airbox

 

Ah...that would be....YES! ;-) After you get used to the Z tube, you should try to get it into 4th and 5th gear (5th and 6th gear in your case with the 6MT) as much as possible to improve your mpg and not as much WOT. But, I know with the Z tube in, it's harder to actually do than say...hearing that nice 'mean' sound above 3,500 rpm from the Z tube is very addictive! ;-)



2004.5 G35-S 5AT Black/Willow - Prem, R. Spoiler, Navi, Infiniti Sport Wheels, Alum Pedals, Dark Tint, Z Tube, K&N Filter<P ID="edit"><FONT class="small"><EM>Edited by bsgoren on 07/27/04 02:15 PM.</EM></FONT></P>

 

Ya I was joking. when I went to fill up today I noticed the trip odometer at 230. I was thinking to myself that I need to lay off the throttle.



Jim
'03.5 Sedan
Brilliant Silver/Graphite
6MT/ Premium package
Sport tuned suspension
Aerodynamic Body Kit
Navigation and Satellite Radio
Z-Tube

 

230...that's 30 mpg more than I get on a good day...lol...You should hear the K&N Typhoon!

John
03.5 G35 5AT 14.2 @ 96.4
10 Wire Grnd Kit
K&N CAI w/Injen HS
UR UD CP
NISMO Mid Pipe
Crawford V 5.0
TS
350 Z 170F Thermostat
02 Maxima SE 4AT 14.5 @ 95
87 Mustang GT 13.2 @ 107

 

I usually get at least 300 out a tank with a 18G fill up. John you must have some serious lead compostion in your foot. That means your averaging ~11MPG which is suburban and excursion territory

Jim
'03.5 Sedan
Brilliant Silver/Graphite
6MT/ Premium package
Sport tuned suspension
Aerodynamic Body Kit
Navigation and Satellite Radio
Z-Tube

 

I was JK Shodog...much like you with the Ztube comment. I was however serious about the K&N Typhoon set up. I actually have the Stillen airbox on there now too and the whole thing sounds throatier.

I average 21 mpg but b/c these damn gas gauges are completely wrong I never get 400 miles to a tank.

John
03.5 G35 5AT 14.2 @ 96.4
10 Wire Grnd Kit
K&N CAI w/Injen HS
UR UD CP
NISMO Mid Pipe
Crawford V 5.0
TS
350 Z 170F Thermostat
02 Maxima SE 4AT 14.5 @ 95
87 Mustang GT 13.2 @ 107

 

Interesting, mine never changed. But now I have a Stillen Intake, seems mine might have gone down. I willl know after a few tanks.

2004 Infiniti G35S, 6MT, Premium, Sport, DP
Mods: JDM Clears, 20% tint, Z-tube, Stilen CAI
Track: 14.32 at 98.79 mph 2.2032 60ft
Dyno 07-07-04 - 234.2 hp & 233.8 tq
http://www.g35world.com