Nissan 370Z Forum  

[Official] "Do I need a tune with bolt-ons?" thread

The results are in. I took it to a local shop and did four pulls on the dyno. They connected an air/fuel gauge to the car to monitor the ratio

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Intake/Exhaust


Like Tree19Likes

Reply
 
LinkBack Thread Tools Display Modes
Old 07-01-2017, 03:01 PM   #211 (permalink)
Base Member
 
BLK N-Z34's Avatar
 
Join Date: Nov 2016
Location: Tennessee
Posts: 38
Drives: 2017 Nismo 370z 6MT
Rep Power: 8
BLK N-Z34 is on a distinguished road
Default

The results are in. I took it to a local shop and did four pulls on the dyno. They connected an air/fuel gauge to the car to monitor the ratio throughout my pulls. They said that it would start out a little lean and then clean up in the higher RPM's and that it's not lean enough to cause any problems. This is good news because now I can wait until the end of the year to get my car tuned. My best pull made 312hp and 237lbs./tq. as seen in the dyno sheet below. This was on my 2017 Nismo 370z with Stillen Gen 3 intakes, Motordyne ART Pipes, and AAM Resonated Short Tails. Not entirely sure if these are decent numbers or not. It was really hot in the shop too.

jchammond likes this.
BLK N-Z34 is offline   Reply With Quote
Old 07-01-2017, 04:29 PM   #212 (permalink)
A True Z Fanatic
 
jchammond's Avatar
 
Join Date: Nov 2014
Location: South Carolina
Age: 57
Posts: 15,204
Drives: 13’ 370Z TS 7A/T
Rep Power: 2684394
jchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond repute
Default

That's a flat torque line & steady HP climb.
What gear were the pulls performed in?


Sent from my iPhone using Tapatalk
__________________
MazWorx built long block | FI-TT-100 Stage 2.75 | IPT built 7A/T

http://www.the370z.com/members-370z-...s-musings.html
jchammond is offline   Reply With Quote
Old 07-01-2017, 05:32 PM   #213 (permalink)
A True Z Fanatic
 
jchammond's Avatar
 
Join Date: Nov 2014
Location: South Carolina
Age: 57
Posts: 15,204
Drives: 13’ 370Z TS 7A/T
Rep Power: 2684394
jchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond repute
Default

I received a couple different papers that had the AFR at the bottom; this is mine w/K&N drop-in's only...a 4th & 5th gear pull (1.41:1 & 1:1) w/3.36 rear axle gear.
A 1:1 transmission ratio will be the most accurate & yield a higher number,,,but my speed limiter kicked in @155'ish.
Also-you having a 17' Nismo w/manual trans. You should have a 3.92:1 axle ratio instead of the 3.69:1's that came in 09-14's.
I do know that a lower axle ratio(larger #) will yield a lower whp/Tq on the dyno...unsure the correct answer for this; but have seen others say/shown it with gear swaps.


Sent from my iPhone using Tapatalk
__________________
MazWorx built long block | FI-TT-100 Stage 2.75 | IPT built 7A/T

http://www.the370z.com/members-370z-...s-musings.html
jchammond is offline   Reply With Quote
Old 07-01-2017, 05:43 PM   #214 (permalink)
Base Member
 
BLK N-Z34's Avatar
 
Join Date: Nov 2016
Location: Tennessee
Posts: 38
Drives: 2017 Nismo 370z 6MT
Rep Power: 8
BLK N-Z34 is on a distinguished road
Default

All four pulls were completed in fourth gear. I thought the torque line looked a bit odd but I'm not sure. The torque looks lower compared to other dyno results that I've seen for similar vehicles. I'm sure I can have it ironed out when I get everything tuned. I'm just glad that my air/fuel ratios look good and that it won't cause any problems. It's definitely given me peace of mind.
BLK N-Z34 is offline   Reply With Quote
Old 07-01-2017, 06:10 PM   #215 (permalink)
A True Z Fanatic
 
jchammond's Avatar
 
Join Date: Nov 2014
Location: South Carolina
Age: 57
Posts: 15,204
Drives: 13’ 370Z TS 7A/T
Rep Power: 2684394
jchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond repute
Smile

Quote:
Originally Posted by BLK N-Z34 View Post
All four pulls were completed in fourth gear. I thought the torque line looked a bit odd but I'm not sure. The torque looks lower compared to other dyno results that I've seen for similar vehicles. I'm sure I can have it ironed out when I get everything tuned. I'm just glad that my air/fuel ratios look good and that it won't cause any problems. It's definitely given me peace of mind.
Looking good,
as your 4th gear is 1.27:1 & 5th is 1:1,,,he could have easily performed a 5th gear pull with the axle ratio that you have; Torque would have risen up & your speed would have been around 150'ish.
__________________
MazWorx built long block | FI-TT-100 Stage 2.75 | IPT built 7A/T

http://www.the370z.com/members-370z-...s-musings.html
jchammond is offline   Reply With Quote
Old 07-01-2017, 06:23 PM   #216 (permalink)
Base Member
 
BLK N-Z34's Avatar
 
Join Date: Nov 2016
Location: Tennessee
Posts: 38
Drives: 2017 Nismo 370z 6MT
Rep Power: 8
BLK N-Z34 is on a distinguished road
Default

I'll have to keep that in mind when I get it tuned later this year. I really appreciate all of your help!
BLK N-Z34 is offline   Reply With Quote
Old 07-01-2017, 06:30 PM   #217 (permalink)
A True Z Fanatic
 
jchammond's Avatar
 
Join Date: Nov 2014
Location: South Carolina
Age: 57
Posts: 15,204
Drives: 13’ 370Z TS 7A/T
Rep Power: 2684394
jchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond reputejchammond has a reputation beyond repute
Default

Anytime Bud,
Jon will be able to answer any question's you have about dyno #'s.
I see your number's went up with every pull; i'm thinking around 200* oil temp yield's the best power.(don't hold me to this one) as i was informed by a tuner,,,this could be why your power was climbing.
__________________
MazWorx built long block | FI-TT-100 Stage 2.75 | IPT built 7A/T

http://www.the370z.com/members-370z-...s-musings.html
jchammond is offline   Reply With Quote
Old 02-11-2018, 03:23 PM   #218 (permalink)
Base Member
 
Ghh0st's Avatar
 
Join Date: Nov 2015
Location: NY
Posts: 79
Drives: '13 370z WP 6MT
Rep Power: 10
Ghh0st has much to be proud ofGhh0st has much to be proud ofGhh0st has much to be proud ofGhh0st has much to be proud ofGhh0st has much to be proud ofGhh0st has much to be proud ofGhh0st has much to be proud ofGhh0st has much to be proud ofGhh0st has much to be proud ofGhh0st has much to be proud of
Default

Z1 Intake, AAM Shorttails currently. Looking to get test pipes or HFC's. Should I get a tune after the HFC's / test pipes? Looking at the fast intentions test pipes and AAM HFCs.
Ghh0st is offline   Reply With Quote
Old 02-16-2018, 08:14 PM   #219 (permalink)
Base Member
 
Ghh0st's Avatar
 
Join Date: Nov 2015
Location: NY
Posts: 79
Drives: '13 370z WP 6MT
Rep Power: 10
Ghh0st has much to be proud ofGhh0st has much to be proud ofGhh0st has much to be proud ofGhh0st has much to be proud ofGhh0st has much to be proud ofGhh0st has much to be proud ofGhh0st has much to be proud ofGhh0st has much to be proud ofGhh0st has much to be proud ofGhh0st has much to be proud of
Default

Quote:
Originally Posted by Ghh0st View Post
Z1 Intake, AAM Shorttails currently. Looking to get test pipes or HFC's. Should I get a tune after the HFC's / test pipes? Looking at the fast intentions test pipes and AAM HFCs.


Anybody?


Sent from my iPhone using Tapatalk
Ghh0st is offline   Reply With Quote
Old 04-12-2018, 10:39 AM   #220 (permalink)
Base Member
 
A-A-ron's Avatar
 
Join Date: Nov 2016
Location: Northern VA
Age: 37
Posts: 28
Drives: '19 VW Alltrack 6MT
Rep Power: 8
A-A-ron is on a distinguished road
Default

Already have HFC's and a Cat-back.

Getting my Stillen Gen 3's delivered today.

I already know I'm getting a tune, but unfortunately the two reputable shops near me won't have weekend availability for about 3 weeks.

My inner car-guy reeeeeally wants to put them on ASAP.

Would it be a wise decision to not install them until the day of getting tuned, or should I be alright driving around for a couple weeks so long as I don't go full hoonigan?

Thanks!
A-A-ron is offline   Reply With Quote
Old 04-12-2018, 10:42 AM   #221 (permalink)
Enthusiast Member
 
yaoxiao4's Avatar
 
Join Date: Feb 2017
Location: Bay Area
Posts: 320
Drives: 13 370z Black M6
Rep Power: 8
yaoxiao4 is on a distinguished road
Default

Quote:
Originally Posted by A-A-ron View Post
Already have HFC's and a Cat-back.

Getting my Stillen Gen 3's delivered today.

I already know I'm getting a tune, but unfortunately the two reputable shops near me won't have weekend availability for about 3 weeks.

My inner car-guy reeeeeally wants to put them on ASAP.

Would it be a wise decision to not install them until the day of getting tuned, or should I be alright driving around for a couple weeks so long as I don't go full hoonigan?

Thanks!
you'll be fine without a tune, even to hoon, your car will just run a little rich that's all
yaoxiao4 is offline   Reply With Quote
Old 04-12-2018, 01:11 PM   #222 (permalink)
Base Member
 
A-A-ron's Avatar
 
Join Date: Nov 2016
Location: Northern VA
Age: 37
Posts: 28
Drives: '19 VW Alltrack 6MT
Rep Power: 8
A-A-ron is on a distinguished road
Default

Wouldn't it be running lean from more airflow?
A-A-ron is offline   Reply With Quote
Old 04-12-2018, 02:37 PM   #223 (permalink)
A True Z Fanatic
 
Chuck33079's Avatar
 
Join Date: Nov 2011
Location: Houston
Posts: 12,265
Drives: 2011 370ztt
Rep Power: 29538
Chuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond reputeChuck33079 has a reputation beyond repute
Default

Quote:
Originally Posted by A-A-ron View Post
Wouldn't it be running lean from more airflow?
Yes.
__________________
2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent
Chuck33079 is offline   Reply With Quote
Old 04-16-2018, 09:40 AM   #224 (permalink)
Base Member
 
projectpanda's Avatar
 
Join Date: Nov 2016
Location: Atlanta
Posts: 120
Drives: 10' G37S White 6MT
Rep Power: 8
projectpanda is on a distinguished road
Default

I'm planning to get a tune but wondering if I should also upgrade my injectors. I will have (ordered and coming in) 3" intakes, 70mm throttles, test pipes, y-pipes, and already have a cat-back.

I'm looking to get a set of GTR 550cc injectors because I have read that 3" intakes causes the stock injectors to be running in the 90% duty cycle. Anyone with EPS and 3" intakes have experience with this?

Latez
projectpanda is offline   Reply With Quote
Old 07-28-2018, 06:08 PM   #225 (permalink)
Enthusiast Member
 
RanRich's Avatar
 
Join Date: Mar 2015
Location: St. Louis
Posts: 425
Drives: 09 PG Sport M6
Rep Power: 3372
RanRich has a reputation beyond reputeRanRich has a reputation beyond reputeRanRich has a reputation beyond reputeRanRich has a reputation beyond reputeRanRich has a reputation beyond reputeRanRich has a reputation beyond reputeRanRich has a reputation beyond reputeRanRich has a reputation beyond reputeRanRich has a reputation beyond reputeRanRich has a reputation beyond reputeRanRich has a reputation beyond repute
Default

BUMP

Looking at a deal on a set of intakes and already have test pipes, an Invidia Gemini and an ecutek dyno tune. Can I install and drive without worry or do I need to retune immediately? Leaning out scares the **** out of me.
__________________
AAM | Dynosty | Ecutek | Eibach | Hawk | H&R | Nismo | Stillen | Stoptech | Z1

Last edited by RanRich; 07-28-2018 at 06:30 PM. Reason: Clarification
RanRich is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Official The370Z "Hot Girls with Hot cars" thread *NSFW* 01.01.09 AK370Z Gentleman's Club 187 01-12-2011 12:24 AM
OFFICIAL "I got my THE370Z t-shirt" Picture thread AK370Z The Lounge (Off Topic) 207 01-09-2011 03:43 PM
Official "Guess the Stig's Time" Thread ResIpsa Nissan 370Z General Discussions 11 07-27-2009 09:45 PM
Official "Nissan 370Z spotted in Japan" Thread AK370Z Nissan 370Z Photos / Spyshots / Video / Media Gallery 120 05-01-2009 09:30 AM


All times are GMT -5. The time now is 11:01 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2