WITH THE EXACT SAME CAR SET-UP AND SAME TRACK. WHAT VARIANCE WILL THE TEMP AND HUMIDITY HAVE ON THE 1/4 MILE TIME.

LETS COMPARE 70, 80 AND 90 DEGREES WITH THE HUMIDITY BELOW 60 AND ABOVE 60

OR COMPARE ANY PERSONAL EXPERIENCE WITH WHATEVER TEMP/HUMIDITY

 

Well, the bad thing with stock ECU's is once Temps get above about 85-90 and 60+ humidity, they pull out a bunch of timing.

I've been known to lose .3-.5 seconds when running low 15's NA.

When it gets like that, time to cut off the wristband, grab a beer, and watch the rest scratch their heads.

 

well i hope i can pull some better times at the track next time i go then. last week when i went it was about 85 for the first few runs with humidity about 70% then by my last run it was about 79-80 with the humidity still right about 70%. my times were going down each time by .1 as it cooled off slightly.

im hoping to pull some low 14's instead of mid 14's

 

very interesting, every since the whole hot humidity began in jersey I've been running slower at the track..... I wonder can high humidity cause the stock ecu to retard the timing to a point where the car will stutter/hesitate?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jeremyEG &raquo;</TD></TR><TR><TD CLASS="quote">well i hope i can pull some better times at the track next time i go then. last week when i went it was about 85 for the first few runs with humidity about 70% then by my last run it was about 79-80 with the humidity still right about 70%. my times were going down each time by .1 as it cooled off slightly.

im hoping to pull some low 14's instead of mid 14's</TD></TR></TABLE>

I had the same experience the other night, probably because I was at the same track at the same time.

How was your last run? I pulled a 14.7 flat.... much higher than I was hoping for, but I bounced off the revlimiter in first by accident. my best that night was only a 14.61.

On a lighter note, I did get a 2.16 60' right after my 2.18!

Chris, who just got new tires put on yesterday


Modified by SoCal ITR at 2:11 AM 6/30/2003

 

i ended up pulling a best of 14.63 at 93 mph. i could not get my mph any higher than 93 all night and ill be putting my new azenis's on tomorrow so that should help my 60's a bit. my best 60' was 2.23

my last run of the night i pulled a 14.71 with a 2.300 60'

im hoping to be able to pull a 14.2 or so when i take all the crap out of my car and with my new tires.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mista Bone &raquo;</TD></TR><TR><TD CLASS="quote">Well, the bad thing with stock ECU's is once Temps get above about 85-90 and 60+ humidity, they pull out a bunch of timing.

I've been known to lose .3-.5 seconds when running low 15's NA.

When it gets like that, time to cut off the wristband, grab a beer, and watch the rest scratch their heads.</TD></TR></TABLE>

really? I wasn't aware the stock honda ecu knows the temperature/humidy. can u please explain what sensors it uses to do this?

 

IAT, baro,

Also make sure your water temp is at 170 degrees when you stage to be consistant. Below that and ECU is still in cold start loop.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mista Bone &raquo;</TD></TR><TR><TD CLASS="quote">IAT, baro,

Also make sure your water temp is at 170 degrees when you stage to be consistant. Below that and ECU is still in cold start loop.</TD></TR></TABLE>

interesting. IAT would be effected @ all times on a boosted car. I wonder if hondata takes over that function or if the stock ecu still pulls timing vs. the hondata map settings.

 

So if you had something that sent out a signal to the ECU that it was alwyas like 60 degrees outside, your timing wouldn't get retarded at all, right?

 

Next time you guys are at the track get a bag of ice. Between runs throw it on your intake, mainlly the 4th runner where the intake temp sensor is. Let it sit for about 10-20 min. and make your next run.

Or you can take an extra temp sensor with you to the track and zip tie it up by a windshield wiper (pluged in of coarse).

 

but if it is hot, not gonna matter where the IAT is at.

Yes the intake manifold mounted units are easier to heat soak.

Now the "ideal" cure...........



would be a 3k-4k ohm resistor plugged into the IAT connector.

 

How about sticking it in a cool can? lol

Resistor would be ok for the track. But after the track I would like to take it out. Maybe a iline wire conector.

 

Anyone actually experiment with that resistor idea? MD weather is killing my performance right now I am sure others everywhere are having problems as well, since its summer and all.... anyone have any other tricks that might help to fool the stock Honda ECU?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mista Bone &raquo;</TD></TR><TR><TD CLASS="quote">IAT, baro,

Also make sure your water temp is at 170 degrees when you stage to be consistant. Below that and ECU is still in cold start loop.</TD></TR></TABLE>

I found that one out the hard way...damn cold thermostat .