G35 Sedan V35 2003-06 Discussion about the 1st Generation V35 G35 Sedan

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Old Apr 15, 2013 | 01:26 PM
  #8911  
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Originally Posted by jeggo
Question for you guys:

I recently got a 2005 g35x and I just noticed that everytime turn the wheel to the left there's this slight grinding sound coming from the front driver side. Not vibrating though. Well I guess it's vibrating a bit but not that much.

I owned a 2004 G sedan as well before and I replaced the wheel bearing which is a common problem with our cars. The problem I think now is, when I had the 2004 before I remember it was vibrating hard when I try to turn or even just going straight.
This definitely sounds like your power steering. It's either the belt or the pump, and I'm willing to bet it's the pump. You can try changing and bleeding the fluid since it's easier (not necessarily cheaper) than changing the pump, but that might not help.

Originally Posted by BabySkyline1325
Also the steering seems very heavy, just an FYI I'm not weak I go to the gym almost everyday. It's just riduclous how I have to use 2 hands to turn at parking lot speeds and doing a three point turn is even more of a pain because I cant "roll" the steering wheel with one hand and I look like a noob driver using 2 hands in this amazing car lol.

I've read that it's supposed to be heavy because it's sporty, but that doesn't make sense to me. Sporty = fast and when my three point turns take forever to do or I have to drive even slower at parking lot speeds just because my turning reaction is slower because of the heavy steering, then that is not sporty to me.
Different cars have different power steering ratios. The power steering in this car is just... different. The G should have speed variable power steering which means you get less power steering as you drive faster, and more when you are stopped or moving slower. But there are other factors at play here too - Is your car lowered? Caster can be great by giving you more control of the car, but may increase once you lower a car, making it work against your power steering. Changing the power steering fluid may help your power steering system adjust, but if you are that sensitive to the change, then you still might feel the difference.
 

Last edited by dofu; Apr 15, 2013 at 01:47 PM.
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Old Apr 15, 2013 | 03:47 PM
  #8912  
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Originally Posted by dofu
This definitely sounds like your power steering. It's either the belt or the pump, and I'm willing to bet it's the pump. You can try changing and bleeding the fluid since it's easier (not necessarily cheaper) than changing the pump, but that might not help.
Hmm really? Is that a common issue with the g35x?

Also, if I'm travelling maybe less than 60kph it's not noticeable. It's when I went for a road trip the past weekend that I noticed it. That's why I assumed it might be the front wheel bearing.
 
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Old Apr 15, 2013 | 04:37 PM
  #8913  
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Originally Posted by jeggo
Hmm really? Is that a common issue with the g35x?

Also, if I'm travelling maybe less than 60kph it's not noticeable. It's when I went for a road trip the past weekend that I noticed it. That's why I assumed it might be the front wheel bearing.
The power steering grinding sound happens with any car with power steering, but usually happens when you aren't moving.

Many parts on your car can make a grinding noise and I didn't notice anything about speed. If you think it's the wheel bearings, then change them out and see if that's it.
 
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Old Apr 15, 2013 | 11:23 PM
  #8914  
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Actually lately it's been feeling lighter and not because I've gotten used to it but now I can sometimes 1 palm roll the steering wheel. Maybe it has something to do with the car sitting at the dealer for so long and not being driven? I'll still bleed the power steering and see if it gets lighter, but right now this isn't so bad.

Also today I let my "boss" drive my car around and got his input on the steering and he said it is heavy. He's 40 years old and owned several cars in his life time and currently drive a Mazda speed3 turbo and takes it to the track. So I guess it wasn't just me and my imagination.

My car is bone stock (for now) so nothing could have been a factor to affect the power steering other than wear and tear.

While I'm here a few other things came into mind.

My window wipers are stuttering/shaking, not while their on, but when I switch them off and just before they return to the bottom position they stutter/shake and then sit. It's not even a minor shake, it's bad enough and makes the car look/sound ghetto which bothers me.

Also my gas door isn't locking. I've read that it unlocks and locks with the doors of the car but my gas door is unlocked at all times. I don't mind it, it's just I'd rather be safe than sorry.

Thank you all for your help, keep this community strong and alive!!
 
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Old Apr 16, 2013 | 05:12 AM
  #8915  
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Help ASAP !!

Will rotors from 04 350z fit my 06 g35x awd sedan!! Need to know ASAP please guys!
 
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Old Apr 16, 2013 | 09:29 AM
  #8916  
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G35
again I'd flush the fluid out and check for vacuum leak/booster.
 
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Old Apr 16, 2013 | 12:42 PM
  #8917  
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My cars at 136000 and the trans kinda feels weird wen it shifts to 2nd likea slight drag so I was wondering if I should get a trans flush but the thing is I never got one before so I don't know if its too late or not? Or should I just do a drain and fill every oil change instead till all the fluid is mostly new
 
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Old Apr 16, 2013 | 06:12 PM
  #8918  
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Okay another noob question as I've never done this mod before:

I have a 2005 g35x and I bought this megan racing oe axle back. Is it possible that I've lost power with this mod? It just feels slower with lower rpms.
 
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Old Apr 16, 2013 | 07:54 PM
  #8919  
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Originally Posted by jeggo
Okay another noob question as I've never done this mod before:

I have a 2005 g35x and I bought this megan racing oe axle back. Is it possible that I've lost power with this mod? It just feels slower with lower rpms.
Yea, you lose low end power for a gain on the mid to/or top end when you open up your exhaust.
 
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Old Apr 16, 2013 | 09:31 PM
  #8920  
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Originally Posted by dofu
Yea, you lose low end power for a gain on the mid to/or top end when you open up your exhaust.
Okay thanks. As long as I'm not just imagining it. It's just so weird you can really feel the difference.
 
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Old Apr 17, 2013 | 06:24 PM
  #8921  
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Originally Posted by jeggo
Okay thanks. As long as I'm not just imagining it. It's just so weird you can really feel the difference.
OK, I didn't have any time to try to put this into words until now, so here it goes:

Ultimately, you have to look at your motor as a huge air pump. You only make power if you can intake more air for combustion with more gas, but you can only intake as much air as you can expel. This is where it gets tricky.

While many ricers will jump up and down claiming that the larger exhaust is great for making power in any car; when it comes to non-turbo cars, you need the smaller diameter exhaust to create velocity or what is often mistaken as backpressure to make power. Of course it's not good if the piping is too small as it becomes a bottleneck, but too big of an exhaust does not create the velocity you need - you have to find the perfect balance.

To be realistic, your minor intake mods will not justify the use of a larger exhaust. In cases like this, you are taking power away from the lower RPMs and transplanting it to the upper RPMs, if you gain as much up top as you lost down low. So to me, an exhaust is mainly aesthetic as it looks nicer and sounds much better, and only benefits spirited driving in a very minor way.

The only reason you want a huge exhaust is if you go turbo, which changes these dynamics completely.

This isn't the definitive answer, but I'm sure it's as good as you'll get from most people on here.
 

Last edited by dofu; Apr 17, 2013 at 06:29 PM.
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Old Apr 17, 2013 | 06:32 PM
  #8922  
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^^^Really well said^^^
 
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Old Apr 17, 2013 | 07:06 PM
  #8923  
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It depends also on what mods you use, my exhaust setup makes power down low and up top, i do t believe there was any loss in power at any rpm. Full motordyne exhaust, Tony did extensive R and D to make sure he could extract the most out of the engine. Not all exhaust however are created equal, i agree with dofu because you have to have the correct size pipe to have the velocity and heat to flow as much as possible without overdoing it. Too big of a pipe and not enough heat to flow fast, too small a pipe and not enough velocity
 
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Old Apr 17, 2013 | 10:36 PM
  #8924  
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Originally Posted by dofu
OK, I didn't have any time to try to put this into words until now, so here it goes:

Ultimately, you have to look at your motor as a huge air pump. You only make power if you can intake more air for combustion with more gas, but you can only intake as much air as you can expel. This is where it gets tricky.

While many ricers will jump up and down claiming that the larger exhaust is great for making power in any car; when it comes to non-turbo cars, you need the smaller diameter exhaust to create velocity or what is often mistaken as backpressure to make power. Of course it's not good if the piping is too small as it becomes a bottleneck, but too big of an exhaust does not create the velocity you need - you have to find the perfect balance.

To be realistic, your minor intake mods will not justify the use of a larger exhaust. In cases like this, you are taking power away from the lower RPMs and transplanting it to the upper RPMs, if you gain as much up top as you lost down low. So to me, an exhaust is mainly aesthetic as it looks nicer and sounds much better, and only benefits spirited driving in a very minor way.

The only reason you want a huge exhaust is if you go turbo, which changes these dynamics completely.

This isn't the definitive answer, but I'm sure it's as good as you'll get from most people on here.
Nice! Thanks for the insight man! I bought it because it was so cheap I couldn't pass it up honestly haha I got the megan axle back for $50 and it sounds decent. It's not loud at all. It's only 3" from 2.5" from oem so it's not a fart can lol but thanks!

Will it make a difference if its a cat back right? Not just an axle back? I'll assume that axle backs are just usually just for show eh?
 
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Old Apr 18, 2013 | 12:06 AM
  #8925  
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The axlebacks are mostly for show and sounds
 
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