Modifications or other things to add onto my car

[Bigjoe347]

Ok im gonna have some money soon and i have no idea what i could use on my car to give it more horsepower or any of that other stuff. Can u guys list some of the things i can add, what they do, and how much they would cost. Thanks

[Tampa G35 Sedan 6MT]

I vote the first thing you need to do is find a Coupe mid pipe.

The sedans have a large resignator after the cats and before the muffler. The Coups have a small resignator and that is what makes the sound so different from the coupe and sedan.

I have parked my sedan (with the coupe mid pipe) next to a coupe and at idle the Sedan is much louder!

I love the sound and it is also good for aobut 5-7 hp! It really makes the sound of the exhaust what it should be out of the Sedans.

DJ

[thahman]

Yeah - I'm glad I got the mid-pipe. It makes the sedan sound more in tune with the FM (Z/G Coupe/FX) platform. When you see that damn coffin-like resonator come off, you'll be glad you did it.

I'm still not sure if I should even bother getting a Z tube... I hear mixed feelings about how much it really helps performance performance-wise. 1-2HP gain?
Modified by thahman at 10:04 PM 7/8/2008

[Tampa G35 Sedan 6MT]

would you say that you gain 5-7 Hp out of the coupe mid pipe?

DJ

[Sentientbydesign]

Yeah - I'm glad I got the mid-pipe. It makes the sedan sound more in tune with the FM (Z/G Coupe/FX) platform. When you see that damn coffin-like resonator come off, you'll be glad you did it.

I'm still not sure if I should even bother getting a Z tube... I hear mixed feelings about how much it really helps performance performance-wise. 1-2HP gain?

Modified by thahman at 10:04 PM 7/8/2008

Z-tube and pop-charger/Stillen intake is supposed to be good for 6hp to the wheels.

Check out the mod database

http://forums.g35club.org/zeroforum?id=266

There, you'll find just about every mod that our members have done to their Gs.

Is it an auto or manual? That makes a difference.

[SVTCOBRA]

I also did the mid-pipe like Tampa and loved it!Also, I noticed an slight increase in MPG even on the tanks where I was floggin it!!!

Here is a pic of the sedan vs coupe mid-pipes. Coupe is much smaller

Here's how it sounds

http://www.youtube.com/watch?v=NIF-GD-WaH8

The Z-tube is a must. It is the intake tube off of a 350Z. You can get them on classifieds here, ebay, or Nissan. You can call around your local Nissan's to see if they have any Z-tube take offs. My local dealer had Nismo'ed 2 350Z's with CAI's and other stuff, so they had the Z-tubes just laying around. I bought one for $15.

I also put in a K&N drop in, others here love the Pop Charger. I just had the drop in laying around from a Pathy I had. There is also a baffle that hangs down under the airbox. I removed this as well.

And, check the mod database that Nate pointed out!

[Tampa G35 Sedan 6MT]

Thanks for the Update SVT... Hey when did you be come an articles manager? lol

DJ

[SVTCOBRA]

ssshhhh! I figured out how to add a custom title....don't tell anyone!

[Sentientbydesign]

ssshhhh! I figured out how to add a custom title....don't tell anyone!

[WhiteyClay]

Get Test Pipes. that gives a lot. then get spacer and Mrev2. Cold air intake.and maybe a exhaust and pulleys. and after that go search for rims...And after you get used to that speed and think its 2 slow then its time for Forced Induction.Dont waste time with headers cuz its hard to get them installed (almost 6hrs) and no gain on HP

thats what I did. exept that FI

[Bigjoe347]

Get Test Pipes. that gives a lot. then get spacer and Mrev2. Cold air intake.and maybe a exhaust and pulleys. and after that go search for rims...And after you get used to that speed and think its 2 slow then its time for Forced Induction.Dont waste time with headers cuz its hard to get them installed (almost 6hrs) and no gain on HP

thats what I did. exept that FI

can you please explain to me what most of that stuff does and how much it would cost?

[Sentientbydesign]

Test pipes are basically pipes that replace your Catalytic converters. They are illegal in most states because the pollute "heavily". Email me if you care before a super mod comes and beats me up.

They provide easier flow to your exhaust because there is no "cat" to impede the exhaust gas.

High-flow Cats are a more advisable option. You get a portion of the gain, plus don't break the law.

Pulleys- Think of your drive belts. There are two kinds of aftermarket pulleys, lightweight stock diameter, and underdrive. The lightweight stock diameter work just like your stock pulleys but shed rotating weight which means more power gets to your wheels instead of being wasted rotating a pulley. Fuel economy should improve in stop and go traffic too because of less mass to speed up and slow down.

Underdrive pulleys basically rotate all of the accessories (water pump, alternator, A/C compressor...etc.) as a slower rate by decreasing the diameter of the pulleys. You get a two fold improvement in power because all of the accessories are imposing less drag on the engine AND the pulleys have SIGNIFICANTLY less mass due to their size.

The down side is that you are running everything at the low end of their performance range which means less electricity produced by the alternator, potentially warmer A/C, Less engine cooling from the water pump...etc.

The Intake and Exhaust are two areas that are usually restrictive in order to deaden sound. Because these cars are partially luxury, they are built with a lot of sound deadening. The intake has 3 baffles and the exhaust has a huge waste of metal called a muffler.

Replacing both with less restrictive aftermarket systems will usually yield 20 hp to the wheels.

The plenum spacer and Mrev2 are modfications to the intake plenum (similar to an intake manifold). Nissan/Infiniti designed the plenum with a slight slant and the front two cylinders are a little starved for air as a result. Addding a plenum spacer increases the volume of air in the plenum and improves flow to the front two cylinders.

The Mrev2 is a modified lower plenum made by Motordyne. On the Rev Up engines (05+ 6mt engines with 7k rpm redline) the Mrev2 and a plenum spacer have gained 15-20 hp in the mid range.

In order of cost:

Test Pipes- Cheap eBay ones can be had for peanuts, but I don't recommend themPlenum Spacer (varies significantly, but can be had for as little as $100)Intake- Starts around $200Pulleys-$350-$400HFC (High flow cat)-Start around $400 for the pair.Exhaust- $400-$500 on eBay (kind of cheap, low quality), $800+ for high quality brand name.

I'd do the intake and plenum spacers first.

HFC and exhaust cost a pretty penny and the sound will change a lot.

Stock Diameter pulleys if you're in a lot of stop and go traffic and want a little extra HP to the tires.

Under drive pulleys if your car is primarily used at the track.

Then you could always check out my sig for grounding wires

[RED_DET]

Don't waste your time with test pipes. They are too loud. I can't believe whiteclay would suggest them considering he isn't sure if he likes the sound of them.

Z tube w/K&N drop in filterMREV and spacercoupe mid pipe for some weight savingsor get a true dual exhaust, stillen or borlasuspension and wheels.

[SVTCOBRA]

Nate,You didn't explain the benefits of those grounding wires! G's are not grounded very well.Benefits: improved shifts for AT, electrical devices work better as they should, more HP, possibly more MPG, stops global warming, saves the polar bears from extinction....did I miss any??

[G_whizz]

Nice job Nate!! I think you basically did ALL the leg work for the noob!!

Hey BigJoe... you just got spoiled...BIGTIME!!! Go to the mod database like it was suggested to you earlier and educate yourself a little more. Especially if your looking to mod.

Again, nice job Nate!

[Sentientbydesign]

Nate,You didn't explain the benefits of those grounding wires! G's are not grounded very well.Benefits: improved shifts for AT, electrical devices work better as they should, more HP, possibly more MPG, stops global warming, saves the polar bears from extinction....did I miss any??

Hahaha. To be quite honest, I feel bad "advertising" all over the G forum, so I try to keep it on the D/L some times.

I just got in some sick gunmetal wire. Instead of being "black", translucent, and shiney, it's "gunmetal", translucent, and MATTE!!!

Very sexy. I'm actually thinking about taking my existing kit and selling it so I can swap these wires in.

Nice job Nate!! I think you basically did ALL the leg work for the noob!!

Hey BigJoe... you just got spoiled...BIGTIME!!! Go to the mod database like it was suggested to you earlier and educate yourself a little more. Especially if your looking to mod.

Again, nice job Nate!

Thanks, Sean. I remember being a Noob and wishing somebody would do that for me too.

[Bigjoe347]

lol thanks