Forum: Tweecer
05-09-2007, 08:15 AM
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Replies: 17
Views: 6,507
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Forum: Tweecer
05-08-2007, 05:21 PM
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Replies: 17
Views: 6,507
Update C&L testing
Hi Stangers,
I got tired, of messing with the 76MM C&L and decided to go back to the stock MAF. My plan was to get the car running real good and then try the C&L.
I was able to get the stock...
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Forum: Tweecer
04-18-2007, 11:57 AM
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Replies: 17
Views: 6,507
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Forum: Tweecer
04-18-2007, 08:09 AM
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Replies: 17
Views: 6,507
76MM C&L volts goe up when RPM goes down
Hi Tuners, I have been chasing a problem and I think I have discovered a significant clue. Normal idle is 800 RPM, about 22 KG/HR, .7 volts.
When the fan comes on, the engine usualy dies. I data...
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Forum: Tweecer
04-18-2007, 08:00 AM
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Replies: 4
Views: 2,576
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Forum: Tweecer
04-17-2007, 04:54 PM
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Replies: 4
Views: 2,576
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Forum: Tweecer
04-17-2007, 03:26 PM
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Replies: 4
Views: 2,576
T4MO engine dies when fan comes on
Hey experts, I need some input.
As long as the fan stays off, my car idles great. I have the idle at 800 RPM, and its stable. ICS is about 25% duty cycle.
What happens, about 7 out of 10...
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Forum: Tweecer
04-13-2007, 07:42 AM
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Replies: 0
Views: 2,382
T4MO Idle woes
Hi Stangers,
The Tweecer is in and I have made big strides on the tune. The engine runs better than ever, no more knocking is the biggest improvement.
The problem is the idle. The car was...
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Forum: Tweecer
04-02-2007, 08:48 AM
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Replies: 2
Views: 2,716
94 GT Vs Cobra tunes
Hi wise ones!
I'm comparing the tunes and what I see is the MAF is almost the same. The injectors are different, 19 vs 24 . The big difference is the injector offset vs voltage. It seems to me,...
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Forum: Tweecer
03-30-2007, 12:19 PM
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Replies: 2
Views: 2,793
'94GT Tune differences Auto vs T5
I was wondering if there are different bins for T5 or auto tranny?
If not, is there a switch that tells the EEC what tranny is installed?
I am getting close to ordering a RT and I am already...
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Forum: Tweecer
12-05-2006, 09:33 AM
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Replies: 4
Views: 3,134
SN95 decel wierdness
I have owned four Fox mustangs and now I have my first SN95. All of my Foxes, Auto or stick, would decel as soon as you let off the throttle. The SN95 seems to wait a while before the ICS allows the...
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Forum: Tweecer
11-28-2006, 12:36 PM
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Replies: 3
Views: 3,165
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Forum: Tweecer
11-26-2006, 07:53 PM
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Replies: 3
Views: 3,165
Tweecer support of the 94-95 Cobra EEC
Is the J4J1 computer worth the time to switch with my GT computer? I have been told the Cobra MAF is the same as the GT and the 24# injectors are compensated for in the J4J1 tune. Witch stratagy is...
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Forum: Tweecer
04-04-2006, 10:57 AM
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Replies: 3
Views: 1,700
Pos 1 Security settings
Hi Tuners,
I was wondering what would be the best way to disable the car?
With the switch removed, pos 1 is default.
What has worked for you guys?
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Forum: Tweecer
01-22-2006, 10:37 AM
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Replies: 0
Views: 1,618
HEGO Bias, A9S
Guys,
I want to bias the HEGO outputs so that I run a little richer. Does anyone know which way to bias? More negative or more positive?
Thanks, Eric
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Forum: Dyno Room
01-21-2006, 08:06 AM
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Replies: 13
Views: 9,362
'65 Mustang TT goes to the dyno
10 PSI, 18 degrees, 93 octane - 454HP, 510Ft-LBs
Torque was 400 Ft-Lbs by 3000 RPM
http://home.inreach.com/ekyock/Temp/dyno%20pull%20small.jpg
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Forum: Tweecer
11-21-2005, 01:41 PM
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Replies: 4
Views: 1,388
Re: Acel enrichment vs TP visted again
I did lousy! Even for my first time. The car had a few problems but it doesn't exsplain why I was so slow. I went 13.4 best of two runs.
I am evaluating the data logs. It looks like I might...
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Forum: Tweecer
11-19-2005, 08:13 PM
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Replies: 4
Views: 1,388
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Forum: Tweecer
11-16-2005, 05:02 PM
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Replies: 4
Views: 1,388
Acel enrichment vs TP visted again
Guys,
I'm still unclear about the popular idea to change the third Y valve from .2968
to about .6
I thought the multiplier, (really a divider) should get smaller, not bigger.
PS
Clint, I...
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Forum: Tweecer
11-04-2005, 09:08 AM
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Replies: 9
Views: 2,532
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Forum: Tweecer
11-03-2005, 11:02 PM
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Replies: 9
Views: 2,532
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Forum: Tweecer
11-03-2005, 07:22 PM
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Replies: 9
Views: 2,532
Re: Data Logging for use with EA
Thanks, Clint but, I have more for you to learn me!
I understood KAMRF to be applied to the calculated PW not the LAMBSE. For example, my log shows LAMBSE of 14.5, KAMRFof .940, (CL idle). Your...
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Forum: Tweecer
11-03-2005, 10:41 AM
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Replies: 9
Views: 2,532
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Forum: Tweecer
11-03-2005, 08:59 AM
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Replies: 9
Views: 2,532
Data Logging for use with EA
I want to make sure I have this right. I want to use EA to sugest MAF curve tweaks. I need to data log with KAM cleared before and adaptive off?
What happens if this should be done and it is...
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Forum: Tweecer
10-19-2005, 10:47 AM
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Replies: 5
Views: 1,182
Re: Rescaling Spark A9S
Yes but the problem was that the spark wouldn't go from the 24 degrees, in the table, to the 18 dgrees in the WOT table until it hit WOT. The point I was trying to make, rather poorly I think, was...
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Forum: Tweecer
10-16-2005, 08:28 PM
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Replies: 5
Views: 1,182
Re: Rescaling Spark A9S
Dale,
The switch set to use load% not load but I don't remember the setting number. I haven't changed it from stock. I haven't had problems caused by the WT TPS setting just that I can pull alot...
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Forum: Tweecer
10-16-2005, 10:33 AM
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Replies: 5
Views: 1,182
Rescaling Spark A9S
I took the approach of setting the WOT and open loop TPS break at 2.0 volts. I also left the sealevel scaling near stock except at idle. I have my WOT spark set down t a safe level but I was having...
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Forum: Tweecer
10-11-2005, 08:30 PM
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Replies: 7
Views: 1,737
Re: FN 882 A9S what does it really do?
Remember that post I made about idle MAFV values equal for both TB and normal idle? Next time, I'm logging both with the spout out, to see what happens, at normal idle. My log did show a ISC duty...
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Forum: Tweecer
10-11-2005, 04:21 PM
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Replies: 7
Views: 1,737
Re: FN 882 A9S what does it really do?
OK, This is helping. My TB airflow is almost the same as the air flow at the desired idle speed. This would give a calculated required air of near zero.
But, I have no FN800. Sorry my questions...
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Forum: Tweecer
10-10-2005, 08:47 PM
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Replies: 7
Views: 1,737
Re: FN 882 A9S what does it really do?
Thanks Clint. Whats missing is what tells the ISC what duty cycle to use at idle. That would make things so much easier. My A9s isn't like the A9L in this respect.
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Forum: Tweecer
10-10-2005, 08:06 AM
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Replies: 7
Views: 1,737
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Forum: Tweecer
09-27-2005, 10:21 AM
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Replies: 4
Views: 1,407
Re: EA injector slope calcs
I made the changes you suggested and the result was
49.9, 54.9, 3.05(10)-5
EA is suggesting changing the low slope from 54 to 55 and raising the breakpoint from 1.8 to 3(10)-5.
I'll give these...
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Forum: Tweecer
09-27-2005, 09:15 AM
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Replies: 12
Views: 2,645
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Forum: Tweecer
09-27-2005, 07:59 AM
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Replies: 4
Views: 1,407
EA injector slope calcs
Clint,
I ran a lengthy data log through this calculator. Pretty slick, by the way!
My tune has high slope 50, low slope 55, breakpoint 1.8(10)^-5
50# injectors, A9S
The calculator came up...
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Forum: Tweecer
09-26-2005, 03:41 PM
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Replies: 12
Views: 2,645
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Forum: Tweecer
09-26-2005, 02:24 PM
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Replies: 12
Views: 2,645
Re: TB Air Flow Strangeness
Clint, I have a A9S, none of these functions are available to me. :( What bugs me is how the MAFV can be higher at lower RPM!?
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Forum: Tweecer
09-26-2005, 10:06 AM
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Replies: 12
Views: 2,645
Re: TB Air Flow Strangeness
Just for grins, I gonna log idle with ISC connected, spout out. I think the spark is adding instability into the loop.
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Forum: Tweecer
09-26-2005, 08:16 AM
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Replies: 12
Views: 2,645
TB Air Flow Strangeness
A9S, 3" Pro Mass Air 42#, blow through.
My tune is pretty good except the motor dies occasionaly comming down to idle. I decided to check TB air flow. I had .46 VDC average MAFV at 600 RPM, ICS...
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Forum: Tweecer
09-13-2005, 08:30 PM
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Replies: 4
Views: 1,183
Re: First CALCON bug after two years
Thanks and I tried rebuilding the payload. Seems this problem is only effecting postion 1. I wonder if postion 1 is really pos 5? I remember counter clockwise to increase postion number?
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Forum: Tweecer
09-10-2005, 09:23 AM
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Replies: 4
Views: 1,183
First CALCON bug after two years
Calcon has stopped working for me. It logs but everything is zeros, It happened right when I needed the most durring a seven hour road trip to Solana Beach. ARGH
Just for fun, I switched to a...
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Forum: Tweecer
09-10-2005, 09:20 AM
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Replies: 5
Views: 1,595
Re: MAF Calibration
Regarding my Pro Mass Air meter, the calculated numbers were lean on the low end and rich on the high end. The meter is a good install, with 18" of straight run before the MAF.
It would be good...
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Forum: Tweecer
09-08-2005, 08:59 PM
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Replies: 5
Views: 1,595
Re: MAF Calibration
Dale,
I had seconds thoughts on this subject. The only folks interested in a curve are the tuners users. Why would anyone want to enter anything other than the actual flow?
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Forum: Tweecer
09-07-2005, 04:34 PM
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Replies: 31
Views: 5,210
Re: 9pt to 30 pt MAF conversions
Anyone see any problem with using MAF pt 30 MAFv as 4.99 instead of 15.999 typicaly seen? Why waste the point with a voltage not readable by the EEC.
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Forum: Tweecer
09-07-2005, 04:31 PM
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Replies: 31
Views: 5,210
Re: 9pt to 30 pt MAF conversions
Thanks Clint, I don't see this as a big deal. I agree that splitting the curve could be problematic. Assuming that a sixth order is a good fit should not be jumped to without actual calibration info...
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Forum: Tweecer
09-07-2005, 02:43 PM
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Replies: 31
Views: 5,210
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Forum: Tweecer
09-07-2005, 01:45 PM
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Replies: 31
Views: 5,210
Re: 9pt to 30 pt MAF conversions
I suppose it can be done, splitting the curve up. Generally, the stranger the curve, the more coefficients needed to get a solution. MAF curves are fairly simple but my software does a 6th order as...
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Forum: Tweecer
09-07-2005, 11:02 AM
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Replies: 31
Views: 5,210
Re: 9pt to 30 pt MAF conversions
Clint, Thanks!
I plotted the EECA results against my 6th order fit and got a match at all points except at 5.0 MAFv . My fit says 1802.252, yours says 1914.198. Big difference. I will send you...
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Forum: Tweecer
09-07-2005, 09:46 AM
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Replies: 31
Views: 5,210
Re: 9pt to 30 pt MAF conversions
Hi Dale,
I was motovated to come up with my own curve fit spreadsheet just to learn.
I used a sixth order with maximum error of 1.3% between calibrated and predicted data. I customized my own...
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Forum: Tweecer
09-07-2005, 08:32 AM
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Replies: 31
Views: 5,210
9pt to 30 pt MAF conversions
What math model is used to perform these conversions? My guess would be a polynom curve fit?
Also, I noticed that Tweecers conversion produced seven points below .4 MAFv. Given that my car...
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Forum: Tweecer
09-07-2005, 08:15 AM
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Replies: 5
Views: 1,595
MAF Calibration
I have researched this topic and found tow opinions. Before I elaborate, here is my cal sheet for a 3" protube, 88-95 Mustang, 42# SC
Actual flow Calc Flow %ERR
Kg/Hr Volts ...
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