93' Miata stolen and flipped build thread - Page 128 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Build Threads Building a motor? Post the progress here.

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 06-28-2014, 08:17 PM   #2541
Senior Member
iTrader: (1)
 
Onyxyth's Avatar
 
Join Date: May 2013
Location: Boyertown, PA
Posts: 667
Total Cats: 51
Default

Something funny is going on in that log. You're at 15 AFR in boost, which first of all is not good. It seems to be flat lining at 15 AFR though, as if the sensor / TS is maxing out how lean it can read.

Something is out of place here, what does your gauge read in boost? Do your gauge and TS agree on AFR at idle?
Onyxyth is online now   Reply With Quote
Old 06-28-2014, 08:42 PM   #2542
Elite Member
 
Join Date: Oct 2013
Location: Cedar City, UT
Posts: 2,769
Total Cats: 948
Default

Quote:
Originally Posted by Onyxyth View Post
Something funny is going on in that log. You're at 15 AFR in boost, which first of all is not good. It seems to be flat lining at 15 AFR though, as if the sensor / TS is maxing out how lean it can read.

Something is out of place here, what does your gauge read in boost? Do your gauge and TS agree on AFR at idle?
I'm not sure exactly what is going on with the 15 static AFR at times. The gauge and TS match and under boost it is around 12-13(or close). The log is definitely odd.

Was taking a look at my VE table just barely and several of the cells in that RPM/KPA range are showing 120+. I adjusted them back to what they were before so we'll see after I fix the coolant hose.

I'll post the table once I get back home.
Jeffbucc is offline   Reply With Quote
Old 06-28-2014, 11:09 PM   #2543
Elite Member
 
Join Date: Oct 2013
Location: Cedar City, UT
Posts: 2,769
Total Cats: 948
Default

VE table

Attached Thumbnails
93' Miata stolen and flipped build thread-fdad060f-fdde-4bcb-bf14-05d15166990d.png  
Jeffbucc is offline   Reply With Quote
Old 06-28-2014, 11:40 PM   #2544
Senior Member
iTrader: (1)
 
Onyxyth's Avatar
 
Join Date: May 2013
Location: Boyertown, PA
Posts: 667
Total Cats: 51
Default

Something was going on, TS thought you were super lean, as indicated by that log. It was adding fuel to compensate and you ended up being really rich.

I would double check your wideband calibration, maybe look over your wideband ground.
Onyxyth is online now   Reply With Quote
Old 06-29-2014, 04:47 AM   #2545
Senior Member
iTrader: (4)
 
Join Date: May 2010
Location: Iowa City
Posts: 542
Total Cats: 15
Default

Your VE looks really low in boost. I would expect it to be in the 130-150's in the higher rpm/kpa cells with your turbo and stuffs.
vteckiller2000 is offline   Reply With Quote
Old 06-29-2014, 09:43 AM   #2546
Elite Member
 
Join Date: Oct 2013
Location: Cedar City, UT
Posts: 2,769
Total Cats: 948
Default

Funny, I thought that might have been the issue with it running so rich. After aututuning for a bit it was kicking the cells up around that level and that is when I started to have those issues. Going to test it with the old VE table and see afterwards if that helps.
Jeffbucc is offline   Reply With Quote
Old 06-30-2014, 12:17 PM   #2547
Senior Member
iTrader: (2)
 
Join Date: Jun 2012
Location: New Braunfels,TX
Posts: 1,138
Total Cats: 70
Default

Quote:
Originally Posted by vteckiller2000 View Post
Your VE looks really low in boost. I would expect it to be in the 130-150's in the higher rpm/kpa cells with your turbo and stuffs.
Not necessary depends on what his req fuel is set at. If he ran less req fuel he would have higher #s
ScottyP3821 is offline   Reply With Quote
Old 06-30-2014, 12:26 PM   #2548
Elite Member
iTrader: (3)
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 5,887
Total Cats: 566
Default

Remember that any misfire for any reason will cause a lean reading because oxygen is present. That can really mindfuck VEAL. If you were doing a lot of VEAL while you had the misfire issue, you might want to back off to an earlier tune and start from there as a baseline.

On req. fuel, you can think of that as your resolution. At the most basic level, your fueling pulse width is req. fuel x VE table value. So, if you lower the req. fuel value, you can have higher numbers in the VE table which means finer control. Max in a VE cell is 255, so you have some room.

Flying up to Utah tomorrow. Have some meetings at Hill AFB.
hornetball is offline   Reply With Quote
Old 06-30-2014, 03:25 PM   #2549
Elite Member
 
Join Date: Oct 2013
Location: Cedar City, UT
Posts: 2,769
Total Cats: 948
Default

Quote:
Originally Posted by hornetball View Post
Remember that any misfire for any reason will cause a lean reading because oxygen is present. That can really mindfuck VEAL. If you were doing a lot of VEAL while you had the misfire issue, you might want to back off to an earlier tune and start from there as a baseline.

On req. fuel, you can think of that as your resolution. At the most basic level, your fueling pulse width is req. fuel x VE table value. So, if you lower the req. fuel value, you can have higher numbers in the VE table which means finer control. Max in a VE cell is 255, so you have some room.

Flying up to Utah tomorrow. Have some meetings at Hill AFB.
You're making me want to take a road trip up north now to have you look at it!

I used a restore point before the VEAL tuning and it seemed to get rid of the issue. Might just start adjusting cells manually and/or saving more often in case of a lean spike. I tracked down my wiring for the AFR and can't seem to find a reason why it seems to stick in TS at 15 at times. I got the gauge and TS matched up about as well as I could. They are a tiny bit off still though. Spliced into to a sensor ground on the ECU as instructed but may try running to the engine ground strap instead

Also dumped another gallon of water in the radiator. Surprise how much leaked out.

How long did it take you all to bleed the air out of the lines. I sat that for about 5 minutes letting bubbles come out but they seemed to slowly keep coming(not sure if there is air still or not). I hear jacking the front of the car up while the engine is running helps?

Also not looking forward to adjusting the hardtop. The middle front is too high above the rubber weather seal and is making quite the wind noise. Might have it too far forward by about 1/4-1/2".
Jeffbucc is offline   Reply With Quote
Old 06-30-2014, 03:29 PM   #2550
Elite Member
iTrader: (5)
 
Join Date: Aug 2011
Location: South Jersey
Posts: 1,523
Total Cats: 30
Default

Quote:
Originally Posted by Jeffbucc View Post
You're making me want to take a road trip up north now to have you look at it!

I used a restore point before the VEAL tuning and it seemed to get rid of the issue. Might just start adjusting cells manually and/or saving more often in case of a lean spike. I tracked down my wiring for the AFR and can't seem to find a reason why it seems to stick in TS at 15 at times. I got the gauge and TS matched up about as well as I could. They are a tiny bit off still though. Spliced into to a sensor ground on the ECU as instructed but may try running to the engine ground strap instead

Also dumped another gallon of water in the radiator. Surprise how much leaked out.

How long did it take you all to bleed the air out of the lines. I sat that for about 5 minutes letting bubbles come out but they seemed to slowly keep coming(not sure if there is air still or not). I hear jacking the front of the car up while the engine is running helps?
Yeah jacking the front end up will help. You want the radiator cap to be the highest point in the cooling system (Air bubbles work their way up... obviously).

I also personally think that this funnel works the best...

Spill-Free Funnel at National Tool Warehouse
BTMiata is offline   Reply With Quote
Old 06-30-2014, 03:34 PM   #2551
Elite Member
 
Join Date: Oct 2013
Location: Cedar City, UT
Posts: 2,769
Total Cats: 948
Default

Thanks BT.

Also, does autotune take into account off throttle lean readings on the gauge when adjusting VEAL?
Jeffbucc is offline   Reply With Quote
Old 06-30-2014, 04:45 PM   #2552
I haz no trubo
iTrader: (2)
 
Oscar's Avatar
 
Join Date: Jan 2007
Location: Bolton, UK
Posts: 3,017
Total Cats: 111
Default

Pretty sure veal filters overrun fuelcut.
Oscar is offline   Reply With Quote
Old 06-30-2014, 05:50 PM   #2553
Senior Member
iTrader: (2)
 
Join Date: Jun 2012
Location: New Braunfels,TX
Posts: 1,138
Total Cats: 70
Default

x2 for using the lisle funnel. I use to over heat like a mo fo. I ducted and got a new wp and radiator and fans and reroute...STILL OVERHEATED. Trey bitched at me over and over in a thread to burp it with the funnel. Finally I listened. Today its 95 ambient where I live and I been doggin the **** out of my car all day tuning and ****. Still havent hit 210 on the temp gauge. Im averaging around 195-205max water temp and oil temps around 200 with the cooler. I think all that stuff helps but it wouldn't be possible without the funnel.
ScottyP3821 is offline   Reply With Quote
Old 06-30-2014, 05:52 PM   #2554
Elite Member
 
Join Date: Oct 2013
Location: Cedar City, UT
Posts: 2,769
Total Cats: 948
Default

Quote:
Originally Posted by ScottyP3821 View Post
x2 for using the lisle funnel. I use to over heat like a mo fo. I ducted and got a new wp and radiator and fans and reroute...STILL OVERHEATED. Trey bitched at me over and over in a thread to burp it with the funnel. Finally I listened. Today its 95 ambient where I live and I been doggin the **** out of my car all day tuning and ****. Still havent hit 210 on the temp gauge. Im averaging around 195-205max water temp and oil temps around 200 with the cooler. I think all that stuff helps but it wouldn't be possible without the funnel.
Cool good to know. Been watching water temps pretty closely with this heat and haven't seen it go over 195° even with it being 100+ outside. I guess my ducting is working.
Jeffbucc is offline   Reply With Quote
Old 07-01-2014, 03:40 AM   #2555
Elite Member
 
Join Date: Oct 2013
Location: Cedar City, UT
Posts: 2,769
Total Cats: 948
Default

Fun little story for yah. Also, this was done on country back roads where there are no houses or cars. Nothing but sagebrush and rabbits to kill.

I was driving and using a lot of throttle in 5th gear...basically experiencing this



I had just gotten done pulling hard up to about 140mph, loving every single second of it. Coming up to a hill and decide to slow down to the speed limit before then. Not sure if my spidey sense went off or what because sitting on the other side was an officer with his lights on.



Promptly pull over, turn off engine, close the laptop and hide it, and get my info out for him.

Officer: Why do you think I pulled you over tonight sir?(love this question)

Jeff: Not sure officer, I did just finish building this car and I know my headlights might not be adjusted correctly, so I apologize if so.

Officer: Uh huh...well I was pulled over on the side of the road with the engine off and for the past 20 seconds I heard you accelerate for quite a long time at what I'm sure were very reckless speeds, and while I didn't see it or get a radar on you, I'll ask you to drive directly home, and don't let me see you on the road again tonight. Letting you off with a warning this time.

Jeff: Thank you officer have a good night



Thank you Karma, you blessed blessed thing you. Knowing my speedo is reading low right now, I'm sure I was doing +5-10 mph on top of the 140. Wow it is fast.

Just glad cops probably think Miatas can't go that fast. Yes, I know, stupid to do on a public road but at least it wasn't the highway, in town, or close to civilization.
Attached Thumbnails
93' Miata stolen and flipped build thread-skittles-o.gif   93' Miata stolen and flipped build thread-1149.gif   93' Miata stolen and flipped build thread-tumblr_lswvmsbqb31qewehh.gif  
Jeffbucc is offline   Reply With Quote
Old 07-01-2014, 09:00 AM   #2556
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 11,894
Total Cats: 487
Default

Unfortunately that cop is probably going to remember your extremely clean bright blue Miata for some time. Time for a repaint!
curly is offline   Reply With Quote
Old 07-01-2014, 10:31 AM   #2557
Elite Member
iTrader: (10)
 
soviet's Avatar
 
Join Date: Jan 2010
Location: VA
Posts: 3,514
Total Cats: 253
Default

cop wanted the D
soviet is offline   Reply With Quote
Old 07-01-2014, 11:12 AM   #2558
I haz no trubo
iTrader: (2)
 
Oscar's Avatar
 
Join Date: Jan 2007
Location: Bolton, UK
Posts: 3,017
Total Cats: 111
Default

You got off lucky. Stop by your local pd with some donuts.
Oscar is offline   Reply With Quote
Old 07-01-2014, 11:32 AM   #2559
Senior Member
iTrader: (5)
 
Join Date: Jul 2011
Location: Sonora, Ca
Posts: 623
Total Cats: 73
Default

You mean back road in Mexico, and you encountered a Oficial de Policía; right?
bikersam717 is offline   Reply With Quote
Old 07-01-2014, 11:37 AM   #2560
Elite Member
iTrader: (3)
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 5,887
Total Cats: 566
Default

Quote:
Originally Posted by curly View Post
Time for a repaint!
Spewed coffee again!
hornetball is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
elesjuan's mediocre 95 Miata adventure (google fiber edition) elesjuan Build Threads 8 02-16-2016 08:36 PM
Project DDoS: '99 "Budget" boost build ProjectDDoS Build Threads 1 09-09-2015 01:52 PM
Drummersrs old Miata, new to me foshizzle Meet and Greet 9 09-08-2015 12:26 PM
Noob here, turbo NC project starts now. turboLuigi Meet and Greet 2 09-04-2015 01:29 PM


Tags
anti-rattle mafia, circle jerk, don't touch the girls, epic ocd, gayle, i see a dust speck, let's clean this too, massive erection, old becomes new, putty in our hands, resistance is futile, shock brace doesn't match, so fresh n so clean, tucked in waistline, want to touch the hiney, we spend jeff's money, whale with herpes

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 04:16 PM.