Nissan 370Z Forum - My new HPS post MAF tubes installed

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Nissan 370Z Forum (http://www.the370z.com/)

- Intake/Exhaust (http://www.the370z.com/intake-exhaust/)

- - My new HPS post MAF tubes installed (http://www.the370z.com/intake-exhaust/26750-my-new-hps-post-maf-tubes-installed.html)

Pelican170

08-12-2011 09:05 AM

Quote:

Originally Posted by 68cam454 (Post 1256728)

I have the ability to measure my intake air temperature using my Kenwood 9980HD head unit. The stock setup and the HPS setup are both excellent cold air intakes. On a hot day and sitting idle with the engine up to full operating temperature, the intake temps go fairly high at around 110 to 120 degrees. As soon as I start moving the temperatures drop dramatically and once I'm driving at more than about 30MPH, the temperatures are within a few degrees of ambient temperature. Any of the silicone based tubes should perform identically unless they have extremely thin sidewalls.

I am very curious to see how hot the temperature gets with the G3 intake since the intake pipes are metal and much longer, which should be terrible for heat soak. I would also expect the temperature drop to occur much slower once you are moving due to the amount of mass that need to be cooled with those tubes. Hopefully someone with the ability to measure intake air temps will get G3's soon so we can compare temperatures. I have a feeling that dyno numbers and real world driving numbers will be dramatically different.

This is good info, thanks. Would you think that a Silicone tube that is thicker would help the temperatures more or waste of money to switch?

68cam454

08-13-2011 02:11 PM

Quote:

Originally Posted by Pelican170 (Post 1258141)

This is good info, thanks. Would you think that a Silicone tube that is thicker would help the temperatures more or waste of money to switch?

I doubt there would be much difference unless is was substantially thicker, but that would make it very difficult to install. Silicone does not conduct heat well, so as soon as air velocity increases, the internal temperatures of the tubes cool quickly regardless of how hot they feel on the outside. I am curious to see how long it takes the long tube intakes with metal piping to recover from heat soak. I expect it to take much longer for the temperatures to drop and they probably will never get as cold as the stock or HPS temperatures due to the long metal pipes. The stock positioning of air draw is ideal for getting cold air in without water ingestion issues.

Maila87

08-17-2011 02:23 PM

Today received Z1 hoses. Really fast shipping to Europe (got FedEx at same price as USPS express delivery). Glad to chose Z1 ones, they look really nice. Tomorrow will be installed, so will see if is necessary to unmout strut bar.

moto_italia

08-17-2011 02:38 PM

Quote:

Originally Posted by Maila87 (Post 1266489)

Probably not totally necessary, but made it much easier.
http://www.the370z.com/intake-exhaus...installed.html

willskip

08-21-2011 10:58 PM

Quote:

Originally Posted by Pelican170 (Post 1074567)

you didn't have a problem with the breather pushing down on the HPS tube? You can notice it where the tube starts to bend... I checked out pics that people have posted on here, and it looks like its doing the same on them, so maybe thats normal or not a big deal? I wish there was a way to remove the stock crank case vent hose and add a new, more flexible one instead of the hard plastic that goes into the intake tube. This is what seems to be giving me the most trouble for whatever reason...

i just put the breather on and did not put it back on its holder. it seems sturdy enough to hold its own. plus my tubes are round all the way for better air flow.

Pelican170

08-22-2011 08:53 AM

Quote:

Originally Posted by willskip (Post 1273084)

i just put the breather on and did not put it back on its holder. it seems sturdy enough to hold its own. plus my tubes are round all the way for better air flow.

I did the same...

Red__Zed

09-06-2011 09:39 PM

my HPS tubes are available. $85 shipped in the CONTUS. Approx 3000 miles on them.

CC_370z

11-04-2011 10:59 PM

Can't decide on the color lol, blue or black?

I'm leading toward black.

bdavis89

04-27-2013 11:03 PM

Necro bump.

Alright guys, I just installed my Z1 Post-Maf tubes, but I didn't use any of the clamps. The tubes fit super snug and I didn't think anything of it as they were pictured on Z1's website without any of the clamps installed. Then I look here and everyone has the main clamps as well as the annoying little ones. Should I not worry about it or tear it all apart again to put the clamps on? It'll be a few weeks before I have the time again...

370Zsteve

04-27-2013 11:10 PM

Necro bump, lol. My worry would be that the material will expand from heat...and then you are sucking air in places you don't wanna be....

Quote:

Originally Posted by bdavis89 (Post 2289443)

m4a1mustang

04-27-2013 11:10 PM

I'd put the clamps on just to be safe.

Mandingo

04-28-2013 01:10 PM

You can get the clamps on without taking the tubes off btw. Just unscrew the nut on the clamp all the way until it comes apart :xmas3:

I'm sure it is fine for the time being since the tubes are under vacuum when the engine is runnin

ortiz73ca

09-18-2014 10:13 PM

Quote:

Originally Posted by Joka4411 (Post 1099797)

I have had two different types of intakes installed on my z and it's all been a waist of money. Stay stock and keep a fast z. Intakes will make your car louder and slower. You will loose all the quickness. Just a nice exhaust and your set.

K&N drop ins are the way to go,,,,

What intakes have you had on the car, just curious?

Ronin06

05-16-2015 08:16 AM

Received mine yesterday. Not expecting any noticeable hp gains, just want to clean up the intake at a reasonable cost. K&N drop in filters helped the throttle response.

Instructions say to remove strut bar, engine cover, and a half dozen other intake items, along with disconnecting the battery and MAF sensors. Thinking this is overkill.

Plan on trying to squeeze this in like everyone else, if necessary I'll remove the strut bar and/or engine cover.

IMO the MAF sensor is not being changed or moved so no reason to disconnect.

Ronin06

05-17-2015 09:36 AM

OK, so I did the install this morning. My observations.

I did not remove the strut brace. I did loosen the stock airbox to allow some wiggle room, also helped to remove the front part of the engine cover to get to the one bolt on the passenger side for the PCV.

I had to trim the small PCV nipples as they would not allow the tubes to sit properly. Easy to do with an xacto knife. Be patient and expect some lost skin. The tubes are flexible so you can bend them quit a bit.

There is a resonator box on the stock tubes on the driver's side this is not needed after the install. Removing the clamps from the stock would require cutting off the rubber nipple that holds them in place... your choice.

After inspecting the stock tubes vs the HPS. I can't see how this will add any hp, but is more for dress. Will get cleaned up and take her for a spin today.

Debating about disconnecting the battery to supposedly reset the MAF sensors. Anyone else tried this? Results?

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