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speedo innacuracy
Posted: Tue Jul 14, 2009 3:29 am
by nunoctr
Hi hondata,
Went to a drive in the highway and I was doing 260 km/h on the speedo.
In the datalog the car was only at 240km/h.
Today went to make a dyno and they said the car have a brutal speedo inaccuracy of more than 20Km/h.
The car is the FN2 civic and this is MAP based calibration there is in f.manager for the FN2 (with changes on fuel, ign. and cams).
What is the problem?
Thanks
Nuno
Posted: Tue Jul 14, 2009 4:12 am
by Dawid S
The same problem here
Posted: Tue Jul 14, 2009 4:45 am
by walter
Same here, on speedo 258km/h, on Datalog ~240km/h.
Posted: Tue Jul 14, 2009 7:07 am
by SkyeHack
same problem here. i was going 158mph indicated on GPS on i95 and the datalog was off
Posted: Tue Jul 14, 2009 7:43 am
by mw1978
I HAVE THE SaME PROBLEM! before flashpro when i drove on 6th gear and 3000rpm i had 100km NOW i have 104km/h
Posted: Tue Jul 14, 2009 4:05 pm
by Hondata
The race calibration in a FN2 will give an incorrect gauge speed due to the final drive. The datalog speed should be accurate. We plan to add a setting to fix this.
If you have an issue then we need to know:
- chassis type (eg FN2)
- calibration type (AFM or race)
- final drive
- gauge speed vs datalog speed vs actual speed
- actual speed determination method
- gear speed was measured in
- tire / wheel size if different from stock
Posted: Tue Jul 14, 2009 5:16 pm
by nunoctr
Hondata wrote:The race calibration in a FN2 will give an incorrect gauge speed due to the final drive. The datalog speed should be accurate. We plan to add a setting to fix this.
If you have an issue then we need to know:
- chassis type (eg FN2)
- calibration type (AFM or race)
- final drive
- gauge speed vs datalog speed vs actual speed
- actual speed determination method
- gear speed was measured in
- tire / wheel size if different from stock
- chassis type: FN2
- calibration type: race
- final drive: OEM
- gauge speed vs datalog speed: 259km/h vs 240 km/h
- actual speed determination method: on the road
- gear speed was measured in: 6ยช
- tire / wheel size if different from stock: no (stock 225-45-18)
Posted: Thu Jul 30, 2009 6:53 pm
by gasss_85
what about this problem??? :?: :?: :?: :?: :?: :?:
Posted: Fri Jul 31, 2009 8:12 am
by Hondata
The last version of the software allows you to correct the speed.
Posted: Fri Jul 31, 2009 12:09 pm
by nunoctr
Yes it's ok now.
I put less 7% on the dash and it's = to the VSS.
Thanks
Posted: Fri Jul 31, 2009 3:00 pm
by aEGo2
nunoctr wrote:Yes it's ok now.
I put less 7% on the dash and it's = to the VSS.
Thanks
Hi bro, care to share how to do it? thanks!
Posted: Sat Aug 01, 2009 5:50 pm
by nunoctr
you need the last beta version of the flashpro software. Then go to the "calibration" and put -7% in the dash speed.
Posted: Sun Aug 02, 2009 12:23 am
by aEGo2
nunoctr wrote:you need the last beta version of the flashpro software. Then go to the "calibration" and put -7% in the dash speed.
got it thanks :D
