I just picked up a 2004 G35 coupe 6MT with just under 30k on it and I'm looking to do a little moding. What are the "best bang for the buck" mods for this car? I've been poking around on the ebay and have come across several different intake manifolds and short ram intakes, which one is best? Are there any sites that you have had good buying experience with?

maintenance questions:
What oil/filter do you use?
What spark plugs do you use?
Any other general maintenance that I should keep track of?


Thanks for the help!

 

OIL FILTER:
Here is an interesting oil filter thread on the 350Z forums.

http://www.6mt.net/forum/g35-coupe/9...t-4x-pics.html

Sounds like Purolator Pureone or Mobil1 filters are the ones to go with.

MODS:
Stock intake is great on this car - not really worth upgrading. Go for stillen one if you really want it - see gains around 1-2 hp to the wheels at the top end. Those ebay ones are GARBAGE for the most part.

Motordyne creates a great spacer that has proven gains - about 10 hp for a $200 item. Pretty great increase for the cost. You can also see the dynos on their website (and they are actually accurate!).

http://motordyneengineering.com/G35.htm

Beyond this, exhaust nets a few hp. Any major gains will either require major engine work OR going with forced induction.

FINALLY, try doing a search. It can really be useful and answer all of the questions you listed.

 

Congrats and welcome to G35Driver.

First DONT buy from ebay...

Best bang for your buck mods:

Power: Motordyne 5/16 Spacer, z-tube, high flow cats/exhaust... you will need a tune with the mods

Best thing is to just search... look around the site and do research... there are plenty of threads answering all your questions

 

What about http://cgi.ebay.com/ebaymotors/NEW-K...spagenameZWDVW

I have been doing some looking around and saw that there are acouple of options for upper and lower intake manifolds. Any thoughts on this? I've been poking around and I've seen a couple of threads on them, but not really sure what one would be best for my car (2004).

 

Try the search button. The kinetix plenum has been discussed many a time.

 

^+1 mostly negative comments

 

Try not to be lazy and click on the link before posting ignorant comments. Those negative comments are for the overpriced SSV not the V+.

 

I did click on the link thanks very much.

The V+ has been discussed on this forum before (although I realize the negative posting is re the SSV). I didn't comment on it and simply suggested he search. I already gave a reasonable answer to his original question, and was now suggesting instead of just posting up stuff he finds on ebay for us all to comment on, he do a little search and research these things before posting.

 

Smokey6 i did not realise it was homo with the negative comments.
My bad.

 

Relax my bad... i should have clicked the link

 

The Z tube and POP Charger combo is a good option intake wise.

A plenum spacer is a good mod that is pretty easy to install, we have ours on sale right now for $162.

A better flowing exhaust is always a good upgrade, we've used the APS true dual & HKS systems, but if you're planning on staying N/A the Nismo is a great option as well.

High flow cats, or test pipes if you don't require emissions testing is another good mod.

One of the most significant gains you can get comes from a lightweight flywheel & clutch combo, which frees up power by reducing rotating weight off of the crankshaft.

 

Your plenum spacer, how does it compare to the motordyne? What sizes/style does it come in?

 

We have never dyno tested a Motordyne here in house but have seen consistent 8-10 rwhp gains from our spacer on our dyno. Our spacer is available in 5/16" only and is an angled design. More info on the spacer and other intake products is available Here.

 

Really? I have had several sports cars over the years, and never seen significant gains from a flywheel and clutch combo. Why are the gains so pronounced with this car? Also, I'm trying to stay away from have 'rice pipes' on this car. I'll be driving it just about every day, and think that having a car like this with exhaust would get a old fast. I've seen a couple of companies that make headers for this motor, but those are something that I've only see solid gains with on my LS1. Any thoughts? Finally, are you saying that a high-flow cat would cause my car to fail its inspection? I live in Austin, Texas and they do require an annual inspection, but I thought that I would still be able to pass with the high-flow cat....

In any event, thank you all for the help here. This is one of the first forums that I've ever posted to, and really appreciate that input that you all have given. I'll try to make better use of the search function before I create subsequent threads.

 

I've seen High flow cats go both ways, really depends on the design and manufacturer specs. We've got an APS exhaust on the Z1 G35 and either Russell or his wife drives it every day and it's not too loud or too raspy.