As I've said and as Dave has said. The HR motor has cai already. I doubt it can be improved much if at all.



Read any exahust header tube size/length theory. Long tubes are for low end torque. Short tubes are for high rpm power. This is just the very basics but you get the idea. Same holds true for intake tract size/length. CAIs are geared toward low end. But I don't know how any G CAI can be when it causes our cars to stall.

 

I have only read about a few people that have had this issue.

-sean

 

I've read about more than a few.

 

Isn't the stalling caused by 6MT putting the tranny into neutral after going WOT to a higher MPH (70mph+) and they let the rpms fall from 6000+ down to idle? I know the Z crowd experiences the same issue with the POP/CAI intakes.

 

I have no clue if this has been mentioned but why would they make a car like this (japan's god skyline) non aftermarket friendly i mean it would make sense if this car is easier than the last to hook up meaning that exhaust, headers, cai, work really good i mean this is the way i look at it but it sucks if i am just putting my head up my *** lol, i just hope that i am right and the aftermarket parts for this car are strong and not just big waste of money. and yes i realalize we are not in japan

 

Be prepared to be very dissappointed.

 

just be patient the aftermarket will catch up and be strong! theres always room for improvements despite what others might say. the same people who are doubting this version had the same things to say about the first gen.. then the aftermarket caught up and they started buying it up! no car is perfect out of the box, even highend 100k cars have upgrades! so just chill and kickback knowing that you havea kick a-- car!

 

Just keep in mind that the 2nd gen intake is even better than the 1st gens and most us know that aftermarket intakes are nothing really more than the noise makers on these cars. The 2nd gen G gets true headers so there will be no real need to replace those. The 2nd gen exhaust is somewhat like a dual exhaust so making gains from an aftermarket setup will be hard to come by. You might gain some power swapping out the cats for test pipes and adding a true X-pipe in exhaust, but don't expect anything earth shattering. With test pipes, you'll introduce rasp which many find annoying. There's is always the potential to gain some power with ECU tuning, but the word is the VQ35HR ECU is far more complicated than the already complicated 1st gen ECU so don't expect much for at least a year or two. Nissan basically took the 1st gen mod handbook and applied it to the VQ35HR. That is they improved the exhaust and added substanial topend breathing to the motor.

 

true they did do alot of improvments but there always room for more. for one the intake has spots that can be smoothed out im sure. probably a z-tube or whatevers coming on the 08'. the air boxs are good and create pressure, but the plenum might need a spacer or aftermarket replacement. the exhaust needs an x-pipe and mufflers with deep tones that dont sound raspy or ricey. an ecu tune is in need especially if you do all that. all in all they did do alot of improvements, just waiting to see who can improve on those! the aftermarket is just waiting for the coupe because most young tuners get the coupe over the sedan.

 

The plenum is composite and basically a one piece unit now so no more spacers. I guess someone could develop and entirely new intake manifold, but it will be hard to beat the power of the stock manifold which delivers a lot of power over a lot of rpm which is ideal for all out acceleration.

 

I just read through the whole thread nonstop.. and I got lost.. but I think some of you guys are trying to say that the new VQ(G35/37 or whatever) is already factory tuned to max. Most of the bolt on parts will be a waste of money.
Well that sure sounds fun... it sure is making me want the new G more and more... (my azz..)
Since I, nor anyone here has any proven facts behind this whole discussion, how bout we all take that thing stuck up our azzes and play nice? No matter how much you argue, compare to sex, claim backgrounds of education, family, and who's got the biggest *****, nobody's right. Period. Time will tell.
What I do believe in is that Nissan isn't stupid and leave nothing for the aftermarket companies. Nissan cars has proven to be used for both light and heavy aftermarket modifications for many years. It may not be a huge margin of the whole market, but I'm sure being a strong candidate for many options of mods after a enthusiast purchases the car, is a good reason for them to decide on that particular car. Hell, at least I'm not gonna buy a car that has little or no potential in gains with aftermarket modifications. What's the fun in that?

 

i totally agree! their not stupid and only time will tell. i mean the damn sedan has only been out what 4-5 months, and the coupe hasnt even hit the market yet!

 

I think mods for engines today are getting harder and harder to design for any type of gains now. But the thing is, Stillen will make an intake for the G, state that it makes "10-12hp" and thousands of people will buy it.

 

I am getting really sick of having to delete posts about mods having, or not having an impact on performance.

 

The twin Ram intake in 07 adds 3hp per nissan, two after market CAI probably will loose power if the ram air effect is cut off.

Now, it's going to be real cool if someone put two supercharger in there, one on left & on on the right