Notices
Build Threads Building a motor? Post the progress here.

Aidan's loose oily bunghole actually runs a track lap

Thread Tools
 
Search this Thread
 
Old May 16, 2017 | 12:45 AM
  #9481  
curly's Avatar
Cpt. Slow
iTrader: (25)
 
Joined: Oct 2005
Posts: 15,197
Total Cats: 1,398
From: Oregon City, OR
Default

What voltages are you seeing?
Old May 16, 2017 | 12:49 AM
  #9482  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

It's not a voltage reading. It's a knock %.

​​​​​​in the pictures you can see a baseline noise threshold and some spikes that may indicate knock.
Old May 16, 2017 | 01:22 AM
  #9483  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

If you zoom in on this picture you can see specs of aluminum on the strap and insulator. I'm putting fresh plugs in and am going to try to stay away from 30psi. And install my Det cans.

@patsmx5
​​​​​
Old May 16, 2017 | 01:38 AM
  #9484  
patsmx5's Avatar
Elite Member
iTrader: (16)
 
Joined: Aug 2007
Posts: 9,406
Total Cats: 559
From: Houston, TX
Default

What timing map are you running to get that much detonation? What octane? Those plugs are hammered. I could never run more than 28 PSI on 93 Octane without detonation no matter what I did. I looked at your logs and it shows like 8-9 degrees timing at 5K and 250kPa.
Old May 16, 2017 | 01:41 AM
  #9485  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

30psi was an accident lol. I can post my tune in a bit. But it's very retarded.
​​​​​​
pulled number 2. Looked way better. Only a few specs. I'll get to the others tomorrow.
Old May 16, 2017 | 01:43 AM
  #9486  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

https://drive.google.com/file/d/0B7v...w?usp=drivesdk

Current tune.
Old May 16, 2017 | 01:46 AM
  #9487  
patsmx5's Avatar
Elite Member
iTrader: (16)
 
Joined: Aug 2007
Posts: 9,406
Total Cats: 559
From: Houston, TX
Default

Tunerstudio doesn't have the ECU definition I need to view that, where do I download that?
Old May 16, 2017 | 01:48 AM
  #9488  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

Megasquirt Support Forum (MSEXTRA) ? MS3 pre-1.5.1 beta 1 firmware released (View topic)
Old May 16, 2017 | 02:11 AM
  #9489  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

I wonder if my intake valve stem seals (supertech) are leaking and causing det.
Old May 16, 2017 | 07:40 AM
  #9490  
sixshooter's Avatar
Moderator
iTrader: (12)
 
Joined: Nov 2008
Posts: 22,204
Total Cats: 3,560
From: Tampa, Florida
Default

Burning oil does lower octane significantly.

Let's see how many new views this thread gets now.

Last edited by sixshooter; May 16, 2017 at 08:10 AM.
Old May 16, 2017 | 08:14 AM
  #9491  
concealer404's Avatar
Elite Member
iTrader: (3)
 
Joined: Aug 2011
Posts: 10,917
Total Cats: 2,206
Default

Supertech valve seals are killing your turbo motors.
Old May 16, 2017 | 08:41 AM
  #9492  
rleete's Avatar
Elite Member
iTrader: (21)
 
Joined: Jun 2007
Posts: 6,794
Total Cats: 1,342
From: Rochester, NY
Default

Superfail or Failtech?
Old May 16, 2017 | 08:46 AM
  #9493  
Forrest95M's Avatar
Junior Member
 
Joined: Jan 2016
Posts: 452
Total Cats: 21
Default

Originally Posted by aidandj
I wonder if my intake valve stem seals (supertech) are leaking and causing det.
I've heard nothing but problems from supertech valve stem seals
Old May 16, 2017 | 09:33 AM
  #9494  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

Number 2

Old May 16, 2017 | 10:40 AM
  #9495  
yossi126's Avatar
Senior Member
iTrader: (6)
 
Joined: Sep 2013
Posts: 901
Total Cats: -13
Default

Using this for my ignition tuning coupld with sennheiser headphones. Probably saved my engine by doing so.
Knock Detection Tool / Adapter Cable, EFI Express
Oh and a 10$ bosch knock-off knock sensor.
Old May 16, 2017 | 11:49 AM
  #9496  
thumpetto007's Avatar
Elite Member
iTrader: (15)
 
Joined: Sep 2010
Posts: 2,041
Total Cats: -117
Default

Originally Posted by yossi126
Using this for my ignition tuning coupld with sennheiser headphones. Probably saved my engine by doing so.
Knock Detection Tool / Adapter Cable, EFI Express
Oh and a 10$ bosch knock-off knock sensor.
Does this also work with an oem 2001 knock sensor? Thanks.
Reply
Leave a poscat -2 Leave a negcat
Old May 16, 2017 | 01:00 PM
  #9497  
yossi126's Avatar
Senior Member
iTrader: (6)
 
Joined: Sep 2013
Posts: 901
Total Cats: -13
Default

Dunno. If the oem knock sensor has a Bosch style connector than yes. Though it's much easier to buy the sensor and hook it up to one of the valve cover bolts.
Old May 16, 2017 | 03:17 PM
  #9498  
stefanst's Avatar
Senior Member
iTrader: (1)
 
Joined: Sep 2011
Posts: 1,215
Total Cats: 74
From: Lambertville, NJ
Default

I tuned for knock with a VW knock sensor and HF detcans. Works just like a standard mechanics stethoscope (which it pretty much is). Det, even around 6krpm, was pretty obvious.

I later hooked the stock sensor up to the good old Harborfreight detcans. You can barely hear anything. May have to increase the sensitivity for them.
On the other hand, OEM knock sensor, AFAIK, is tuned to Miata knock resonant frequency (around 6kHz or so?). So maybe I would only hear knock, but since my engine is not knocking, I'm not hearing much.
Old May 16, 2017 | 03:55 PM
  #9499  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

When you say HF det cans what are you referencing. I did the HF microphone thing and extended it and bolted it to my 1.6. I just have no idea what to listen for. I'm going to hook them up tonight and see what I can hear.
Old May 16, 2017 | 04:30 PM
  #9500  
DNMakinson's Avatar
Elite Member
iTrader: (3)
 
Joined: Jan 2013
Posts: 5,030
Total Cats: 861
From: Seneca, SC
Default

Originally Posted by stefanst
On the other hand, OEM knock sensor, AFAIK, is tuned to Miata knock resonant frequency (around 6kHz or so?). So maybe I would only hear knock, but since my engine is not knocking, I'm not hearing much.
Stock sensor is wideband, not tuned.



All times are GMT -4. The time now is 08:33 PM.