Installing a bunch of bolt-ons, any others to look at?

[myth37]

Wudup guys.

In the process of getting some bolt ons for my 2011 m37x.

Already have the takeda short ram intakes.
Just ordered the ark grip catback and invidia hfcs.

Looking to order the z1motorsports intake plenum(manifold).

I was wondering about the z1 lower intake manifold also. Will it fit our cars? Like the intake plenum, its also for a 370z or g37. Confirmed everything else fits, havent figured out if that fits though.

I was going to order the stillen headers but i dont see the point of paying 700$ plus 500 installation for a couple extra hp. That labor charge is serious.

Also is there any other bolt ons i should be looking other than the headers which i will eventually put on, but not for now. Provide links please or part numbers.

Going to get everything installed and uprev tuned at the same time.

[firedog68]

Search the aftermarket part list on this forum and you will see a list of what works. I too just ordered the Z1 intake plenum and I do not if the lower intake you speak of works. If you try it let me know. I will try to do some research on it and see if I come up with any thing

[firedog68]

post6686768.html?hilit=aftermarket%20part#p6686768

[Ilya]

Yes, he posted in that thread which is a bit OT so I moved his post to it's own topic.

[myth37]

Im having a performace shop look into it today firedog68. I'll let you know. Still trying to figure out if i should change the underdrive crank pully to the still one.

[rsilva800]

All those modifications will net you nothing unless you have the car properly tuned. I see no mention of a Cobb system or Osiris or any other EMS. If you have already done that then ignore this.

The plenum is a pretty significant upgrade and one that I will highly suggest. I am positive it will fit our engine as they are the same as the ones on the 370 and G37. Other than that another modification you can look into will be force induction, that will definitely put you on a different level.

Rob

[myth37]

Says in my sig that im getting a uprev tune right after everything is installed lol. The plenum is a for sure. Just ordered it, figuring out if the lower intake manifold will fit also. Z1 offers one. What you think rob?

[rsilva800]

Says in my sig that im getting a uprev tune right after everything is installed lol. The plenum is a for sure. Just ordered it, figuring out if the lower intake manifold will fit also. Z1 offers one. What you think rob?

If you a re doing the upper plenum for sure, why skip the lower plenum? Especially if you are going to have the car tuned with Uprev. Maximizing air flow is key to achieve a higher HP and TQ.

P.S Sorry for the oversight I read the initial post too quick and did not look at your sig

[jakeG37]

How much more HP would the lower plenum add? I am looking to do some similar mods to my 2008 G37s Coupe. I hear people saying headers are not worth the $$ for so little HP gain, but what gain can you expect from headers? I dont seem to be able to find actual numbers to make that judgement on my own.

[PostalsQ]

When I spoke to Z1 the lower intake manifold was estimated at 2-4 whp. With tuning. Headers would've been more significant at 5-15 whp. I think that depends on the long tubes or the shorter ones like Z1 has. But reading several posts over at the 370 forum. Long tubes are going to be the better power maker overall in HP & TQ. But installation is suppose to be a real PITA.

[ArmedAviator]

Long tube headers on any engine will increase torque across the board. The scavenging really helps. It definitely looks tight under the engine so I'm sure it'd be a pain.

Remember that increasing your peak HP number may still not mean a faster car. The intake plenum you install will increase airflow at high RPM but at a trade off for reduced torque at low RPM. For daily driving, having the low end torque would be better to have. For track racing, the upper end torque would be better, as you'll likely have the engine above 4.5k most of the time.

Best bang for your buck is an NO2 system. On-demand performance, albeit limited to tank capacity and lost trunk space.

[DredM56]

I never modded my G because the gains aren't worth it in my opinion. The fastest one runs 11 flat and has like 30 40k into it.

http://www.myg37.com/forums/motorsports ... 7-run.html check this thread post number 11 he shows his mods. Now look at the da it's was -1200 I ran 13.47 in -900 so close to 13.40 in that air. His is also rwd can get a better launch. That's a lot of cash to spend for .6 of a second. A hundred shot would give the same results or better for a fraction of the money.

[ArmedAviator]

I never modded my G because the gains aren't worth it in my opinion. The fastest one runs 11 flat and has like 30 40k into it.

http://www.myg37.com/forums/motorsports ... 7-run.html check this thread post number 11 he shows his mods. Now look at the da it's was -1200 I ran 13.47 in -900 so close to 13.40 in that air. His is also rwd can get a better launch. That's a lot of cash to spend for .6 of a second. A hundred shot would give the same results or better for a fraction of the money.

This so much. Some cars respond well to mods. Older Mustangs with the 4.6L for example. That engine has alot of potential that Ford doesn't unlock. My previous Panther platform vehicles respond great to 4.6L mods, tunes, and suspension upgrades but that's because the mods were available cheap and there was so much room for improvement. These cars are well designed and Nissan didn't leave much room for improvement for regular to spirited street driving. For track use, sure any car can take upgrades but it's expensive to get gains as mentioned above.... There price of a new car.

It's your money, use it as you please. If it were me and I wanted to lower the 1/4 mile time, I'd do nothing but NO2 plus a quality tune.

[PostalsQ]

Nitrous is a great tool to getting down the track. Or for a nice burst for that matter. I've used dry systems and wet. I've always preferred wet due to being able to use more nitrous. I've used as much as 300 on a 2 stage. Me & a friend would go hunting on the freeways in his vette with a stroker and dry nitrous. We beat up on numerous high level, high end cars all over the 100k mark. So many people are afraid of it. But honestly. If your fuel system is in good working order. You have nothing to fear. As long as you use it within reason. But installing a nitrous system over i.e.: Fast Intentions LT's. Your going to see huge gains with nitrous vs LT's. But the 2 combined is even better. LOL.