03-11-2014, 03:26 PM | #183 |
Banned
Join Date: Mar 2013
Drives: 2013 FR-S
Location: Orlando, FL
Posts: 2,929
Thanks: 1,166
Thanked 2,293 Times in 1,180 Posts
Mentioned: 313 Post(s)
Tagged: 4 Thread(s)
|
I don't know what anyone is doing to bring about this noise, as I've never heard it myself. Maybe I just don't ramp up cams fast enough to do it, who knows? I guess I've never really listened for it either, though.
|
03-11-2014, 04:09 PM | #184 | |
Senior Member
Join Date: Jul 2012
Drives: 2013 Asphalt FR-S Manual
Location: Whitby, ON, Canada
Posts: 6,716
Thanks: 7,875
Thanked 3,353 Times in 2,134 Posts
Mentioned: 99 Post(s)
Tagged: 1 Thread(s)
|
Quote:
Did you notice in your log if you have a wave in the DI pressure? I haven't looked at your raw log file yet.
__________________
Light travels faster than sound, so people may appear to be bright until you hear them speak... flickr |
|
03-11-2014, 07:09 PM | #185 |
Senior Member
Join Date: Jul 2012
Drives: 2015 Mustang GT (on order)
Location: San Diego
Posts: 904
Thanks: 114
Thanked 471 Times in 208 Posts
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
|
If you have it, you will hear it. Even with a loud exhaust you can still hear this resonance in the 4kish range.
__________________
|
03-11-2014, 07:13 PM | #186 |
Banned
Join Date: Mar 2013
Drives: 2013 FR-S
Location: Orlando, FL
Posts: 2,929
Thanks: 1,166
Thanked 2,293 Times in 1,180 Posts
Mentioned: 313 Post(s)
Tagged: 4 Thread(s)
|
probably drowned out by the turbo jet noises. seriously though i think i just haven't been listening for it. i haven't noticed it in any of the cars i've tuned. i'll keep an ear out for it next time.
|
03-11-2014, 07:17 PM | #187 |
Banned
Join Date: Mar 2012
Drives: SSM LT MT BRZ
Location: SoCal
Posts: 1,033
Thanks: 803
Thanked 754 Times in 328 Posts
Mentioned: 23 Post(s)
Tagged: 1 Thread(s)
|
What makes you think you are going to get better answers than those provided clarifying that this is a new Cam actuator technology and the noises are derived from that? Arghx7 provided you with all the information you need, if you want a muddier answer stay tuned people will continue to theorize about completely unrelated stuff for several more pages. I have also made several posts stating that it is the cam actuators when asked to advance or retard quickly. Which of these "TUNERS" would you like to spoon feed you your answer and with what flavor jelly. Tuners aren't always engineers, and don't necessarily need to understand the specific inner-workings of every new technology to debut on a given motor, only how to address it from behind a keyboard. There are lots of people that have been aware of the noise, sorted the cause and provided you the answers, if you pay attention you can tell which ones know what they speak of and which ones are "tuners" with preconceived explanations that were way off base. |
The Following 4 Users Say Thank You to SkullWorks For This Useful Post: |
03-11-2014, 07:31 PM | #188 |
Senior Member
Join Date: Jul 2012
Drives: 2015 Mustang GT (on order)
Location: San Diego
Posts: 904
Thanks: 114
Thanked 471 Times in 208 Posts
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
|
you might not need to change the cam angle as quickly with a turbo as you aren't suffering from torque deficiency in the midrange.
__________________
|
03-11-2014, 07:34 PM | #189 |
Banned
Join Date: Mar 2013
Drives: 2013 FR-S
Location: Orlando, FL
Posts: 2,929
Thanks: 1,166
Thanked 2,293 Times in 1,180 Posts
Mentioned: 313 Post(s)
Tagged: 4 Thread(s)
|
i don't notice it in any of the NA cars i've tuned either.. i'll have to look at the cam maps from some of my tunes and see if there is any quick advance going on in there.
|
03-11-2014, 07:37 PM | #190 | |
My Other Ride's a Jeep
Join Date: Aug 2013
Drives: 2013 BRZ Limited
Location: United States
Posts: 893
Thanks: 431
Thanked 253 Times in 198 Posts
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
|
Quote:
Edit: It is 25° http://www.datazap.me/u/luckrider/fi...zoom=4786-4804 |
|
03-11-2014, 07:38 PM | #191 |
Banned
Join Date: Mar 2013
Drives: 2013 FR-S
Location: Orlando, FL
Posts: 2,929
Thanks: 1,166
Thanked 2,293 Times in 1,180 Posts
Mentioned: 313 Post(s)
Tagged: 4 Thread(s)
|
|
03-11-2014, 07:40 PM | #192 | |
My Other Ride's a Jeep
Join Date: Aug 2013
Drives: 2013 BRZ Limited
Location: United States
Posts: 893
Thanks: 431
Thanked 253 Times in 198 Posts
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
|
Quote:
They are available here: http://www.openflashtablet.com/downloads/index.html |
|
03-11-2014, 07:48 PM | #193 | |
Member
Join Date: May 2013
Drives: 2013 Raven Scion FR-S
Location: Lancaster, Ca
Posts: 74
Thanks: 9
Thanked 27 Times in 23 Posts
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
|
Quote:
Sounds like engine noise changing. Probably because the engine is changing stuff. Sounded close enough to VTEC that I didn't think twice about it.
__________________
|
|
03-11-2014, 08:22 PM | #194 |
Senior Member
Join Date: Aug 2012
Drives: FR-S
Location: IL
Posts: 2,857
Thanks: 519
Thanked 2,997 Times in 1,095 Posts
Mentioned: 159 Post(s)
Tagged: 1 Thread(s)
|
Perrin modified my flash and dropped the VVT tuning and reverted it to less agressive map. Reflashed and it's dead silent. Will post up log and then dyno after.
Whatever power was lost cant be much. Feels about as smooth, and more important does not sound like I need a valve adjustment. I know Jeff spent plenty of time tuning vvt for power and vishnu but... Lets see what the dyno says.
__________________
|
03-11-2014, 08:48 PM | #195 | |
Banned
Join Date: Jan 2012
Drives: Attitude
Location: MD
Posts: 10,046
Thanks: 884
Thanked 4,889 Times in 2,902 Posts
Mentioned: 123 Post(s)
Tagged: 4 Thread(s)
|
Quote:
|
|
03-11-2014, 09:03 PM | #196 | |
My Other Ride's a Jeep
Join Date: Aug 2013
Drives: 2013 BRZ Limited
Location: United States
Posts: 893
Thanks: 431
Thanked 253 Times in 198 Posts
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
|
Quote:
|
|
The Following User Says Thank You to Luckrider For This Useful Post: | wparsons (03-11-2014) |
|
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Variable Valve "Butterfly" Exhaust | dlux | Southern California | 19 | 02-22-2016 06:21 PM |
First tank OFT E85 tuning. Noise? | Tromatic | Software Tuning | 2 | 02-20-2014 05:43 PM |
Exhaust Cut Off Valve | beagoodruslan | Engine, Exhaust, Transmission | 2 | 01-01-2014 01:47 AM |
Exhaust Noise that goes away after warmed up | FastLane1000 | Engine, Exhaust, Transmission | 10 | 08-15-2013 10:06 PM |
Knock/valve slap/crick noise under accel | yomny | Issues | Warranty | Recalls / TSB | 47 | 01-07-2013 08:53 PM |