DIY: Z1 Intake Plenum and Spark Plug Swap [Picture Heavy]

*ICE* · 03-06-2014, 10:03 AM

what is the purpose of changing the spark plugs too base on the first post? I thought it was just a simple swap for the plenum?

synolimit · 03-06-2014, 10:22 AM

Quote:

Originally Posted by *ICE*

what is the purpose of changing the spark plugs too base on the first post? I thought it was just a simple swap for the plenum?

Just because he wanted to. I do mine every 40k. Some do 50k, some do 100k if they have iridiums.

Mozen · 03-06-2014, 11:37 AM

Quote:

Originally Posted by synolimit

Just because he wanted to. I do mine every 40k. Some do 50k, some do 100k if they have iridiums.

Correct...I'm at nearly 50k miles and figured that since I had it all apart I should do the swap.

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Z Stig · 03-16-2014, 01:54 PM

Installed mine last Sunday. My throttle bodies had been cleaned about 5k miles ago, so I did not need to remove the coolant hoses. I just loosened the four bolts and moved them out of the way. I am getting a tune from Z1 to maximize my mods. Until then, I really noticed a difference in the drive with the plenum install. Very happy with it and looking forward to the tune!

Zoren 370 · 07-04-2014, 01:42 AM

Quote:

Originally Posted by Z Stig

Installed mine last Sunday. My throttle bodies had been cleaned about 5k miles ago, so I did not need to remove the coolant hoses. I just loosened the four bolts and moved them out of the way. I am getting a tune from Z1 to maximize my mods. Until then, I really noticed a difference in the drive with the plenum install. Very happy with it and looking forward to the tune!

When you say you noticed the difference with the drive can you be more specific please of the difference VS when you have the OE manifold. Been trying to consider this if its worth the money to gain some minuet hp or torque. Thanks

synolimit · 03-16-2014, 03:54 PM

Local shops charge $35hr. No comparison as of yet that I've seen.

The shop and I are going to do a full test and tune on this. We are porting the stock lower, upper and throttle bodies. We will install the lower and dyno. Then tune it with dyno. Then the upper and dyno, tune, dyno etc. we should have results soon.

black_sedan · 03-16-2014, 06:40 PM

Anyone know if the TPS relearn and idle relearn needs to be done when installing the intake plenum? I know on the my g35 vq35hr if the TB was disconnected, you would have to do the relearn.

Boss_302 · 12-11-2014, 05:47 PM

True there is no great mystery to cleaning up this stock manifold.
Just good practicable experience.

SurfDog · 04-01-2015, 03:18 AM

subd. parts on the way

carlitos_370z · 04-01-2015, 06:37 AM

Subscribed... Hope to buy one someday

03-06-2014, 10:03 AM	#1 (permalink)
ICE Base Member Join Date: Jul 2009 Location: Las Vegas Posts: 102 Drives: Infiniti G37S Rep Power: 17	what is the purpose of changing the spark plugs too base on the first post? I thought it was just a simple swap for the plenum? __________________

03-16-2014, 01:54 PM	#4 (permalink)
Z Stig Track Member Join Date: Mar 2010 Location: Brambleton, VA Posts: 917 Drives: SOLD: '10 370Z BC M6 Rep Power: 18	Installed mine last Sunday. My throttle bodies had been cleaned about 5k miles ago, so I did not need to remove the coolant hoses. I just loosened the four bolts and moved them out of the way. I am getting a tune from Z1 to maximize my mods. Until then, I really noticed a difference in the drive with the plenum install. Very happy with it and looking forward to the tune! __________________ SOLD: '10 Sport Touring, Black Cherry: Z1 Stuff, Stillen stuff, kWv3, SPC, UpRev & Pilot Super Sport. Now: 2015 Jeep Cherokee Trailhawk for off-road fun, 2015 BMW 228ix for on-road fun

03-16-2014, 03:54 PM	#6 (permalink)
synolimit A True Z Fanatic Join Date: May 2013 Location: Columbus, OH Posts: 5,051 Drives: 2013 Silver 370z Rep Power: 3391	Local shops charge $35hr. No comparison as of yet that I've seen. The shop and I are going to do a full test and tune on this. We are porting the stock lower, upper and throttle bodies. We will install the lower and dyno. Then tune it with dyno. Then the upper and dyno, tune, dyno etc. we should have results soon. __________________ 13 370z-

04-01-2015, 03:18 AM	#9 (permalink)
SurfDog A True Z Fanatic Join Date: May 2012 Location: Colorado (9000 feet) Age: 58 Posts: 1,796 Drives: 09 6mt, 13 Sequoia, Rep Power: 15751	subd. parts on the way __________________ 09 6spd Berk CBE, JWT cams, ZSpeed CSC, Stillen (25 row oil, brake cooling, sways, gen3 CAI), Passport (9500ci), Quaife LSD, Z1 400 hp kit, ss lines, pads, rotors, clutch etc, Phunk's pan and fuel starve fix

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03-16-2014, 06:40 PM	#7 (permalink)
black_sedan Enthusiast Member Join Date: Dec 2011 Location: Florida Posts: 308 Drives: 14' F150, 14' Q50 Rep Power: 15	Anyone know if the TPS relearn and idle relearn needs to be done when installing the intake plenum? I know on the my g35 vq35hr if the TB was disconnected, you would have to do the relearn.

12-11-2014, 05:47 PM	#8 (permalink)
Boss_302 Base Member Join Date: Feb 2013 Location: NY NY Posts: 150 Drives: 11 Nissan 370z S Mt Rep Power: 14	True there is no great mystery to cleaning up this stock manifold. Just good practicable experience.

04-01-2015, 06:37 AM	#10 (permalink)
carlitos_370z A True Z Fanatic Join Date: Jul 2013 Location: Puerto Rico Posts: 7,157 Drives: 13 Nissan 370Z SP M6 Rep Power: 7587	Subscribed... Hope to buy one someday