I don't understand why the g35 has so few mods available for it. The VQ class engines have been on Wards top 10 engines list for over 10 years and they are really great. The 350z, nissan altima, maxima, and g35 all have the 3.5 liter in them (albeit with some differences and I know I am leaving some other cars out). There should be more support for such a popular engine but all I see is the spacer, exhaust, ztube, nos, or FI. When I had a honda accord we had more choices for mods and that was far more of a family car than the g35. Are 350z mods transferable to the g35 without modification? Is the engine already tweaked out so much that you can't gain much without FI?

 

I dunno man, but I sure miss the good old days when I could buy a 95 TT Supra and buy a full exhaust/headers combo, intake and a boost controller and I'm already pushin close to 400whp!! the 2JZ engine, oh man.... bulletproof....
theyre making engines either more restricted nowadays, or more complicated... or maybe I'm just talking out my ***...

 

i could be wrong, but maybe the reason why there are minimal gains with an intake/exhaust/header combination could be that our engines already breathe pretty efficiently from the factory.

what else did you have in mind for the car? i see tons of mods such as suspension, brakes, drivetrain, FI (nos, s/c, turbo), choices of single vs twin turbo, exhaust, etc.

 

I Agree, They Do Need To Make More Mods, Interior, Engine, Exterior. I Guess The Car Looks Dam* Good Stock.

 

The G/Z intake manifold achieves about 105% volumetric effiency. Yeah, it's pretty damn good. An intake spacer does help a bit and it's cheap.

The stock intake tract and airbox can flow way more than the VQ35 can ingest. It's also a true cold air design that becomes slightly pressurized at speed. It's hard to improve on those aspects.

The stock exhaust manifold, while kind of ugly, are nearly true headers. They aren't the cast log-style ill-flowing manifolds that are used on the Maxima/Altima VQ35s. Minimal gains will come from adding true headers.

The stock catback is 2.5" ID. That's more than enough flow for a 3.5 liter V6. The sedan muffler is a variable design with a flapper that opens under higher exhaust velocity. It's the same design used on the prior gen Skyline GTR. It flows quite well.

The heads flow decently and could be improved on, but it's really not worth the money to yank them off and clean them up.

The cams are pretty good. You could add more aggressive cams and get a good bit more peak power, but then you end up killing you low to midrange performance plus you'll need to raise the rev limiter to take advantage of the higher rpm powerband. You'll also need to yank the lower oil pans and add stronger connecting rod bolts so that you're rods can handle the higher rpms (7100-7300rpms vs 6600rpms).

So yes, the G/Z VQ is already really good to begin with and it is hard to extract meaningful power from it.

 

It will always be easy to gain power from a turbo motor. With an NA motor, power is far harder to come by.

Engines these days are far from restrictive. People want power therefore the designers continually find ways to add more power. Gone are the days of poor flowing intakes and intake manifolds, restrictive exhausts, etc. The designers needed to tap into these areas to find every little ounce of power.

 

TT Supra & G/Z are 2 different animals. There isn't a whole lot to do to the G NA. You could do a 4.2 liter kit, turbo, or SC kit. You'll get more enjoyment out of modding the suspension, I know I do.

 

I decided to finish up my susspension mods next. Looking at getting Stillen Sways, Richie's STb, and stainless steel brake lines when I get my taxes back. I lowered my sedan with 350Z springs/ coupe springs.

After I may install a Stillen exhaust (gen 2) and 5/16 spacer.

 

If the engine is optimized pretty well what is the difference between the non revup and the revup engine? Also with the numbers on the new altimas and maximas are these cars faster than an 03 AT G? I hope not or this would be sad

 

probably not, the 03/04 g's are rated at 260 motor hp but in reality theyre almost the same as the 05/06 280 rated motors

 

The mods arent cheap either..

 

That is a good point. I feel there are tons of engine mods for the VQ (I have owned most of them) but they sure cost more than your Honda stuff.

 

^
Because the G cost more than the honda's so they figure we have money to spend on mods.

 

That would make sense if mods for the accord were any cheaper than mods for the g35 but they aren't. Why does an exhaust cost so much for a G35 anyways? It is not like it takes a lot of research or special machinery to make one.

 

blah blah, honda mods cost way more than say Mustang or Camaro mods, our mods cost more, its all relative

heck the plenum spacer adds a good 10-14hp, and only cost like $250, thats cheap as hell

jon!