How did nissan/Infiniti restrict Sedans to 260 hp?
#1
How did nissan/Infiniti restrict Sedans to 260 hp?
I know the 05 and up have the same hp, but us poor 03, 03.5 and 04 guys only have 260 hp. How did they restrict the G sedan? Is it just ECU "de-tuning" and ****ty exhaust or something more like cams etc? I would like to know if there is free "hidden" horsepower that can be unleashed for a decent price....
Thanks!
KC
Thanks!
KC
#3
#4
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It would appear, based on the dyno information submitted here and on other VQ35-related websites, that the primary way that Nissan/Infiniti "restricted" the power on pre-2005 sedans was with a keystroke on their keyboard, striking a "6" instead of an "8" when submitting their "official" stats for publication.
#5
I have a 2005 6mt sedan, and I am more liely to think that the 2005 is OVERRATED on power.
This is the weakest 300 hp car I have ever driven.
the 1/4 mile timeslips of most of these cars proofs it.These cars should be hitting 100 trap speeds int he 1/4 mile but those timeslips are few and far between!!!
This is the weakest 300 hp car I have ever driven.
the 1/4 mile timeslips of most of these cars proofs it.These cars should be hitting 100 trap speeds int he 1/4 mile but those timeslips are few and far between!!!
#6
I've owned both the 2003 and now the 2005. The cars are like night and day. Not just the cosmetics but also the handling and HP.
I am not going to argue with anyone here, 'cause I agree with everybody's opinions.
I think part of the HP improvement came from the new exhaust design in the '05 which is IMHO amazing for an OEM.
Other than that, I can't say for sure what else made a difference.
I am not going to argue with anyone here, 'cause I agree with everybody's opinions.
I think part of the HP improvement came from the new exhaust design in the '05 which is IMHO amazing for an OEM.
Other than that, I can't say for sure what else made a difference.
#7
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#8
Motor Trend 8/02
2003 G35 sedan 5AT, premium, Sports package
260hp/260tq
0-60 6.2
1/4 ET 14.6
1/4 MPH 95.7mph
Motor Trend 1/03
2003 G35 sedan, premium, Sports package
260hp/260tq
0-60 6.5
1/4 ET 14.6
1/4 MPH 97.1mph
Motor Trend 9/05
2005 G35 sedan, premium, Sports package
280hp/270tq
0-60 6.5
1/4 ET 14.7
1/4 MPH 95.9mph
Looks to me like the 03/04 G35 was making 280hp/270tq all along. It also explains why my 03 5AT with just a Z-pipe pulls 14.4/14.5 and 97/98mph.
2003 G35 sedan 5AT, premium, Sports package
260hp/260tq
0-60 6.2
1/4 ET 14.6
1/4 MPH 95.7mph
Motor Trend 1/03
2003 G35 sedan, premium, Sports package
260hp/260tq
0-60 6.5
1/4 ET 14.6
1/4 MPH 97.1mph
Motor Trend 9/05
2005 G35 sedan, premium, Sports package
280hp/270tq
0-60 6.5
1/4 ET 14.7
1/4 MPH 95.9mph
Looks to me like the 03/04 G35 was making 280hp/270tq all along. It also explains why my 03 5AT with just a Z-pipe pulls 14.4/14.5 and 97/98mph.
#9
Originally Posted by Chico
I think part of the HP improvement came from the new exhaust design in the '05 which is IMHO amazing for an OEM.
#10
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Originally Posted by DaveB
The only real exhaust change was with the resonator in the midpipe. It's half the size of the 03/04 resonator........and I want it A muffler hanger was changed too, but I doubt that adds much power.
#12
Originally Posted by DaveB
If that's the case then why are people with 05s running coupe midpipes?
I had also lost back pressure with that set up and had slight droning. Changing back was the best thing for me.
For any '05 getting a coupe midpipe is pointless.
#13
Originally Posted by Chico
I've owned both the 2003 and now the 2005. The cars are like night and day. Not just the cosmetics but also the handling and HP.
I am not going to argue with anyone here, 'cause I agree with everybody's opinions.
I think part of the HP improvement came from the new exhaust design in the '05 which is IMHO amazing for an OEM.
Other than that, I can't say for sure what else made a difference.
I am not going to argue with anyone here, 'cause I agree with everybody's opinions.
I think part of the HP improvement came from the new exhaust design in the '05 which is IMHO amazing for an OEM.
Other than that, I can't say for sure what else made a difference.
#15