actually, all G35 coupes produced after August of 2004 have larger rotors and brakes

 

05 IP with black interior so hot!

well really any 05 coupe!

 

as 05s or still 04s?

 

Infiniti released that the 05+ sport brakes stopped better then brembos (although that was never proven outside of inifiniti to my knowledge) it has been proven that the 05 sport brakes may stop better but the brembos had far less fade

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yes the 05+ 6MT engines had a decrease in torque.. but inreturn they recieved a smoother over all torque curve.. so whole the regular engines produced more peak torque the 6MT engines made more overall useable torque

if anyones interested the 05 "rev-up" motor also came with variable valve on both exhaust and intake cam while the previous motor only had it on the intake, the new 05+ also came with a brand new ECU (alot faster then the previous one).. according to local tuners the new 05+ revups had stronger rods and the pin that goes into the piston (forgot that word =P), and new valve train.. but what made the difference was the intake manifold.. lower plenum to be exact.. the lower plenum had shorter and fatter runners.. anyone that took high school physics can remember that

Longer tube = more velocity
tappered tube = more velocity
Fatter tube = more volume

so the new revup had short fat runners versus the previous motor with long runners.. so the original motor with the long runners had more air velocity at low RPMs.. making more torque.. the new 05+ 6mt motors had the short fat runners allow the engine to breath better at high rpms.. (why it revs higher =P) however if you dyno the motor anymore pass 7k bone stock the power drops right after.. engine peaks at around 6,800rpm.. i guess its kinda why Nissan went with the dual intakes and a completely different design to reach the new 07 sedan's power.. as they're topped out on the current manifold design

i guess next step above that would be electronic valve train with no throttle body


- Eric

 

ARE YOU SERIOUS?!?!?

 

yes, i figured, looks to me the Brembos weere 4 piston anyway.

interested in the new G37 brake calipers though, maybe.

 

This thread helps a lot. Thanks everyone who posted information! Looking to buy a G35 and can't decide what year! So this definitely helped a lot!

 

05s

 

Thaks Klumzyee.... I am now sad... 04 G sucks a$$

 

PUAHAHAHAHa.. lol =)

I was looking for a G in 05 so yeah i was bumed out that no more brembos..

 

is there a difference between 2006s and 2007s?

 

Nope... that's not true. The '03 and '04 G35 Coupe Brembo brakes have larger rotors than the newer Coupes. The front rotors are only marginally larger, but the rears are Significantly larger.



'03 and '04 G35 Coupe Brembo Brake Specifications:
-Front Rotor Diameter: 12.76"
-Rear Rotor Diameter: 13.07"


'05, '06, and '07 G35 Coupe Brake Specifications:
-Front Rotor Diameter: 12.6"
-Rear Rotor Diameter: 12.1"


That information is straight from the Factory Service Manual and cross-referenced(For consistency purposes) with Vehix.com for the '03 and '04 Coupes, and straight from the Infiniti Web-Site's vehicle specifications page and cross referenced(again, for consistency) with Vehix.com for the '05-'07 Coupes.

 

heh psh to think i doubted my knowledge =P lol jpjp

but IMO brembos were the way to go tho *sigh too bad they got rid of it =\ i would've shelled out an extra $1,000 for those

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difference between 05 and 06.. plenty read my posts!

 

Yeah dude.... the Brembos are awesome.

There are other details to the story though aside from just rotor diameter. The surface area of the front pads on the 2 cars we are comparing is not the same between the old Brembos and the new Infiniti brakes on the '05 to '07 Coupes. The new Coupes have more front pad surface area than the old Brembos, but the newer Infiniti brake pads are also thinner in terms of width than the Brembos(which means that they are more prone to fade because the useable surface area of the rotor absorbing heat is less, especially when you couple that with the fact that the diameter of the Infiniti front rotor is slightly less than the Brembos). The front Brembo Rotors are also 4 piston calipers, whereas the performance version of the newer non-Brembo Coupe brakes are 2-Piston(which means that the Brembos will have greater breaking force applied to the pads as well as more even distribution of the braking power across both pads and all portions of each pad).

The surface area of the 2 cars front brake pads is something like this(for one pad)

Brembo Front(0304 Coupes) 8.73" Sq.
Infiniti Front(05-07 Coupes) 10.239" Sq.


As far as the rear brakes between the 2 generations of cars, there really is no comparison... the old rear Brembos are conclusively FAR superior to the new Infiniti rear brakes in all performance aspects. The rear Brembo pads are 37% wider(about half an inch) than the newer Non-Brembo ones, and the diameter of the rotor is drasticly larger than the new Non-Brembo brakes on the Coupes, which should significantly reduce brake fade, as well as the Brembo rear brakes being 2 piston and the newer Infiniti Non-Brembo brakes being only 1-piston.

The surface area of the 2 cars rear brake pads is something like this(for one pad):

Brembo Rear(03 & 04 Coupes) 5.34" Sq.
Infiniti Rear(05-07 Coupes) 4.24" Sq.


All that being said, the Brembo brakes will have a very significant amount of useable surface rotor area advantage over the non-Brembo newer brakes, both because of the increased diameter of the rotors, as well as the wider section of the rotor that touches the pad. The only real advantage to having the newer brakes over the Brembos is that they have more surface area on the front pads which means that they might grip slightly better when they are cold in particular over the Brembos(but keep in mind that the newer front pads are also thinner than the Brembos, resulting in less useable rotor surface area), .. but the Brembos are also 4 piston, which makes them a more efficient brake per square inch of pad surface area than the newer Infiniti Brakes. Aside from performance, the newer Infiniti brakes are thicker(measuring a new pad from the edge of the pad that would touch the rotor to the backing plate), which means that they are likely to last much longer than the Brembos. I believe they are also made of a harder material, which means that they don't grip quite as well as the Brembos and which is also the reason why the Brembos give off soo much more brake dust. The Brembo rotors also have a thinner wearout allowance, which means that they can't be turned that much(meaning you're likely to be replacing them much more, instead of just resurfacing them) in comparison to the newer non-Brembo Coupe rotors.


There is no question about it that the Brembos are the far superior setup in terms of raw performance when compared against the newer Infiniti non-Brembo brakes..... but the newer Infiniti pads/rotors last longer and dust less, as well as cost less to maintain.

 

wow, great information. thanks a bunch Klumzyee. you were very helpful and made it easy to compare the models. thanks to all others also. i guess im set on the 05's