[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 112: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 112: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 112: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 112: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 112: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
Streetracing.co.za • View topic - DIY Street/Dyno tune with wideband AFR
View unanswered posts View active topics






Post new topic Reply to topic  [ 132 posts ]  Go to page Previous  1, 2, 3, 4, 5, 6, 7  Next
forumtools   forumtools
Author Message
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Wed Apr 18, 2012 9:39 am 
Offline
2 Bar BOOST!
User avatar

Joined: Sun May 01, 2011 6:34 pm
Posts: 5353
:hehelol: :hehelol: :hehelol: :hehelol:

_________________
Тяговый. Вы пошутить.


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Wed Apr 18, 2012 10:45 pm 
Offline
Just arrived..

Joined: Tue Mar 29, 2011 2:09 am
Posts: 13
Location: Cape Flats
Nope there is a KS3 unit that u can run inside ur car yes, the KS4 unit is the 1 im getn next , but the shat is duur , but the 1 i have is jus to detect knock yes, looks kind of weird drivng around and ur passanger looks like his from NASA ..... :laughinghard: those earphones are huge.


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Wed Apr 18, 2012 10:52 pm 
Offline
2 Bar BOOST!
User avatar

Joined: Sun May 01, 2011 6:34 pm
Posts: 5353

_________________
Тяговый. Вы пошутить.


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Tue May 15, 2012 8:22 am 
Offline
2 Bar BOOST!
User avatar

Joined: Mon Nov 28, 2011 1:47 pm
Posts: 2165
Location: Cape Town - Mitchells Plain
I was reading Boksie's explanation on how the Dicktator uses interpolation and it got me thinking.
How do you guys road tune?
when I did my brother's car, we did every gear, every rev range as best we could.
It was very time consuming and tiring.
Is there a quicker and more effective way of going about it?

_________________
The novalty of having an oldskool engine will wear off when some punk kid smokes you in his Susuki Baleno with hairdryer,neons and roof wing And when you pull up at the next set of lights he'll suggest to race for headjobs, cause in his mind having to give or take... Its still a win-win


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Tue May 15, 2012 8:36 am 
Offline
2 Bar BOOST!
User avatar

Joined: Sun Jan 10, 2010 11:03 pm
Posts: 2488
Location: The Flats

_________________
--------------------------------------------
'81 RWD Corolla 3sgte III
'83 Conquest 4AGC III + Dellies - X
Mk1 Escort 1.6 Banglvan + Cam + Dellies - X
--------------------------------------------


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Tue May 15, 2012 9:00 am 
Offline
2 Bar BOOST!
User avatar

Joined: Mon Nov 28, 2011 1:47 pm
Posts: 2165
Location: Cape Town - Mitchells Plain

_________________
The novalty of having an oldskool engine will wear off when some punk kid smokes you in his Susuki Baleno with hairdryer,neons and roof wing And when you pull up at the next set of lights he'll suggest to race for headjobs, cause in his mind having to give or take... Its still a win-win


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Wed May 16, 2012 12:36 pm 
Offline
0.5 bar boost
User avatar

Joined: Wed Dec 31, 2008 4:00 pm
Posts: 647
Location: Athlone CT
i can try to explain this coz on two ocassions i was driving my car when they were tuning it. got a lot of work now so cant go into detail but using a higher gear helps you to get to a load site with little bit more or lil less TPS. so its basically load vs tps position, and using the diff gears help you pin point the points easier, thats how i understand it, and thats the thinking i used when attempting to tune the starlet under boost too. was just to drive it home with though lol

_________________
ESR Garage

BUILT NOT BOUGHT!!


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Mon May 21, 2012 9:08 am 
Offline
2 Bar BOOST!
User avatar

Joined: Mon Nov 28, 2011 1:47 pm
Posts: 2165
Location: Cape Town - Mitchells Plain
I understand that you will get a higher load, in a higher gear at low revs.
Say 5th gear @ 2000rpm.

Maybe I should have phrased my question as such.

How do you tune for WOT?

_________________
The novalty of having an oldskool engine will wear off when some punk kid smokes you in his Susuki Baleno with hairdryer,neons and roof wing And when you pull up at the next set of lights he'll suggest to race for headjobs, cause in his mind having to give or take... Its still a win-win


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Thu May 24, 2012 9:28 am 
Offline
2 Bar BOOST!
User avatar

Joined: Mon Nov 28, 2011 1:47 pm
Posts: 2165
Location: Cape Town - Mitchells Plain
Bump.
Anyone have any ideas or advice kanalla/please?
Will be road tuning my brother's car on Friday.

_________________
The novalty of having an oldskool engine will wear off when some punk kid smokes you in his Susuki Baleno with hairdryer,neons and roof wing And when you pull up at the next set of lights he'll suggest to race for headjobs, cause in his mind having to give or take... Its still a win-win


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Thu May 24, 2012 9:51 am 
Offline
2 Bar BOOST!
User avatar

Joined: Wed May 21, 2008 3:10 pm
Posts: 15112
Location: Goorrood
The main reason I'm going NA on the boksie first now, is to try and get this tuning thing under my belt once and for all. Things don't tend to break so easily on NA motors, not when they are standard. Then I can do everything myself basically. So I'm going to have to figure out a lot of this myself, unless someone can give some tips as Henoja says.

_________________
My garage is so leeg soos 'n hoer se hart...


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Thu May 24, 2012 10:58 am 
Offline
2 Bar BOOST!
User avatar

Joined: Mon Nov 28, 2011 1:47 pm
Posts: 2165
Location: Cape Town - Mitchells Plain
I'm going to try and explain how we went about tuning my brother's car the first time round.

Car: Nissan Sentra 200GSi 2L 16v
Management: Dicktator Standard
AFR gauge: AEM
MAP based as TPS is faulty.

Please note that the pics are only a representation and not the actual figures used.

We basically followed the manual on most of the settings.
Got the car to idle by adjusting the dizzy and then using the timing light, I adjusted the trigger angle until we got 17deg.

main.JPG
main.JPG [ 110.15 KiB | Viewed 6359 times ]


Set the base timing on the Ignition timing page at 10deg. This allowed a safe timing base to start with.

ignition.JPG
ignition.JPG [ 107 KiB | Viewed 6359 times ]


With the car idling @ 1000rpm, I adjusted the fueling till the AFR was between 14.5-14.7


Note: The point to tune will always flash in red/have a red background.
I did the same for 2000rpm and 3000rpm. This allowed us to at least get the car driving in 1st gear.
Took the car on the road and did the following for 1st gear.
Hold at 1000rpm and tuned AFR for 14.5-14.7
Hold at 2000rpm and tuned AFR for 14.5-14.7
Kept doing this at 1000rpm increments till 5000rpm.

You will notice as you give more petrol the load point will move. I just kept following the red block and tuned there as needed.

We went through all the gears starting at 1000rpm, if possible, till 5000rpm.
I just gauged what the values at 6000rpm and 7000rpm should be and checked it afterwards. Made adjustments as required.

fuel maps.JPG
fuel maps.JPG [ 143.18 KiB | Viewed 6359 times ]


What I did notice is, we never reached the load site on the far right. This column was only reached when you floor the pedal.
I basically just gauged what those values needed to be, floored the car and watched the AFR very carefully. It really jumps around and I had to gauge where to adjust the fueling to get a AFR of 13.0-13.5

As it stands now, the timing is not complete but I have made small conservative adjustments.
Will be revisiting this area once #Rotor gets a chance to make us 1 of knock sensors.

The areas I need help with are:
Tuning for foot flat or WOT.
Cold start, at the moment we need to let the car idle for about 5 mins before driving it. otherwise when you touch the pedal the car just dies.

I have attached the other pages for the guys interested in seeing how the dicktator pages look.

comp.JPG
comp.JPG [ 114.85 KiB | Viewed 6359 times ]


outputs.JPG
outputs.JPG [ 93.38 KiB | Viewed 6359 times ]


sensor.JPG
sensor.JPG [ 117.41 KiB | Viewed 6359 times ]

_________________
The novalty of having an oldskool engine will wear off when some punk kid smokes you in his Susuki Baleno with hairdryer,neons and roof wing And when you pull up at the next set of lights he'll suggest to race for headjobs, cause in his mind having to give or take... Its still a win-win


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Thu May 24, 2012 4:15 pm 
Offline
2 Bar BOOST!
User avatar

Joined: Sun Jan 10, 2010 11:03 pm
Posts: 2488
Location: The Flats
Nice. This is where things start getting very interesting :thumb:

_________________
--------------------------------------------
'81 RWD Corolla 3sgte III
'83 Conquest 4AGC III + Dellies - X
Mk1 Escort 1.6 Banglvan + Cam + Dellies - X
--------------------------------------------


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Tue May 29, 2012 1:37 pm 
Offline
2 Bar BOOST!
User avatar

Joined: Mon Nov 28, 2011 1:47 pm
Posts: 2165
Location: Cape Town - Mitchells Plain
Salaam / Hi all,

As discussed in the other thread, I will be looking at cold start settings on my brother's car over the weekend.
Will post up the results here.

We also did some tuning of the fuel map over the past weekend and the car feels a lot smoother.
I will try and get the map and put up pics of it.
I also went about tuning it differently from the explanation above. Took us about an hour to do.

Regards,
Henoja

_________________
The novalty of having an oldskool engine will wear off when some punk kid smokes you in his Susuki Baleno with hairdryer,neons and roof wing And when you pull up at the next set of lights he'll suggest to race for headjobs, cause in his mind having to give or take... Its still a win-win


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Tue May 29, 2012 1:56 pm 
Offline
0.5 bar boost
User avatar

Joined: Wed Dec 31, 2008 4:00 pm
Posts: 647
Location: Athlone CT
new technique? sharing with us? lol

_________________
ESR Garage

BUILT NOT BOUGHT!!


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Tue May 29, 2012 2:01 pm 
Offline
2 Bar BOOST!
User avatar

Joined: Mon Nov 28, 2011 1:47 pm
Posts: 2165
Location: Cape Town - Mitchells Plain
As soon as I have the map that is now on my brother's car, I will.
It's best explained with pics.
It may not be the correct way but it definately cut down tuning time on the road.

PS: I used 2 loading sites all the way to 7000rpm and then just interpolated the values from there and checked it afterwards.

_________________
The novalty of having an oldskool engine will wear off when some punk kid smokes you in his Susuki Baleno with hairdryer,neons and roof wing And when you pull up at the next set of lights he'll suggest to race for headjobs, cause in his mind having to give or take... Its still a win-win


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Tue May 29, 2012 2:06 pm 
Offline
0.5 bar boost
User avatar

Joined: Wed Dec 31, 2008 4:00 pm
Posts: 647
Location: Athlone CT

_________________
ESR Garage

BUILT NOT BOUGHT!!


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Tue May 29, 2012 2:21 pm 
Offline
2 Bar BOOST!
User avatar

Joined: Mon Nov 28, 2011 1:47 pm
Posts: 2165
Location: Cape Town - Mitchells Plain
When we just started tuning my brother's car we used R300>N1>R300 but it took us a while cos I was still learning.
This tune was done on Eisleben between 17h30 and 19h00 with making Magrieb inbetween.
We tried to get the load to move across to the far right by applying the handbrake or left foot braking but it's very difficult to hold it and your brakes suffer.

Will try and get the map by him tonight.

_________________
The novalty of having an oldskool engine will wear off when some punk kid smokes you in his Susuki Baleno with hairdryer,neons and roof wing And when you pull up at the next set of lights he'll suggest to race for headjobs, cause in his mind having to give or take... Its still a win-win


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Fri Jun 01, 2012 2:40 pm 
Offline
2 Bar BOOST!
User avatar

Joined: Mon Nov 28, 2011 1:47 pm
Posts: 2165
Location: Cape Town - Mitchells Plain
Salaam / Hi all,

As previously discussed, I re-tuned my brothers car last Friday after a quick service.
Took the car on the road to check the fueling through the revs and found some places to be lean and others rich.
We were strapped for time and couldn't do every gear every rev range.
I decided to use 2 load sites (-0.73 and -0.60) and only tune the AFR in those 2 columns.
You have to play around with selecting the correct gears per rev range to get it where you want but you figure it out quickly enough.
I tuned these 2 columns all the way to 7000rpm

We went back home and I calculated (using interpolation) the rest of the AFR values for the other load sites.

This is what the map looks like now. On closure inspection, there are a few small areas where I can adjust the values.

numerical fuel.JPG
numerical fuel.JPG [ 123.89 KiB | Viewed 6312 times ]


Took the car out again and just went through the revs and gears and checked the AFR. I was happy as the AFR was maintained between 14.3-14.8
I then decided to have a look at the last 2 load site columns. Asked my brother to short shift 1st gear and then floor it in 2nd.
All I did was to watch the AFR gauge as I already knew where the load was.
I noticed that the car would run very rich (12-12.5) the minute he floored it and that it was a bit lean somewhere higher up in the revs (14.5-15.5)
Had him do it again but this time I asked him to watch the rev counter and when I called out to him he must take note of the revs.
Found that at 2000rpm the car was a bit too rich and from 5000rpm onwards it was leaning out.
I just made adjustments in the last 2 columns for the noted rev ranges and checked it again. We kept doing this till we were both happy.
The car now holds a nice 13-13.5 AFR on WOT in any gear.

The car also feels alot smoother through the revs and may be better on fuel too because he went to s2s from MP and we didn't cruise, raced about 6-7 times on just under a quarter tank. He filled up at the garage after the event with the gauge needle being about a needle thickness above the empty mark.

Now, this is what I found interesting when I copied the map last night.
I changed the settings to graphical and saw that my calculated values is more or less a straight diagonal line from -0.86 to -0.21
The remaining to load sites is where WOT occurs.
So in hindsight, it may be easier to just use the graph after the 1st 2 load sites have been tuned and then just use the gradient of that line all the way through the load sites and just adjust WOT as needed.

This is the graphical AFR vs Load for 7000rpm.

7000rpm.JPG
7000rpm.JPG [ 66.99 KiB | Viewed 6312 times ]


Please note: That by no means am I saying this is the correct way of doing this but merely my findings and my understanding thereof. I too am still learning and couls still learn a lot from the guys in the know.

Regards,
Henoja

_________________
The novalty of having an oldskool engine will wear off when some punk kid smokes you in his Susuki Baleno with hairdryer,neons and roof wing And when you pull up at the next set of lights he'll suggest to race for headjobs, cause in his mind having to give or take... Its still a win-win


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Sat Jun 02, 2012 2:33 am 
Offline
2 Bar BOOST!
User avatar

Joined: Wed May 21, 2008 3:10 pm
Posts: 15112
Location: Goorrood
I think you know a whole lot more than most of us on this subject...

Very cool of you to post your findings, going to help the rest of us a lot to sort our cars when the time comes.

_________________
My garage is so leeg soos 'n hoer se hart...


Top
 Profile  
 
 
 
 Post subject: Re: DIY Street/Dyno tune with wideband AFR
PostPosted: Sat Jun 02, 2012 9:39 am 
Offline
2 Bar BOOST!
User avatar

Joined: Sun Jan 10, 2010 11:03 pm
Posts: 2488
Location: The Flats

_________________
--------------------------------------------
'81 RWD Corolla 3sgte III
'83 Conquest 4AGC III + Dellies - X
Mk1 Escort 1.6 Banglvan + Cam + Dellies - X
--------------------------------------------


Top
 Profile  
 
 
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 132 posts ]  Go to page Previous  1, 2, 3, 4, 5, 6, 7  Next



Who is online

 

Users browsing this forum: No registered users and 2 guests

 

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 
Jump to:  
cron
yukari
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group

Theme created by Talihim Yok for Streetracing.co.za