Question for the tuners
Thread Starter
Le Mans Master
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
Question for the tuners
I am datalogging on Tunerpro RT with a Red Devil River cable, everything seems to work okay but my logs show no mph being recorded. Any ideas where to look for the cause?
Melting Slicks
Joined: Aug 2003
Posts: 3,380
Likes: 388
From: Lakeville MI
Your *.adx file should display Vehicle Speed.
Right click on any displayed value on the dash to see if Vehicle Speed is present in the definition file.
Does your speedometer work?
Is the vehicle speed signal from the instrument cluster connected to ecm pin A10?
Right click on any displayed value on the dash to see if Vehicle Speed is present in the definition file.
Does your speedometer work?
Is the vehicle speed signal from the instrument cluster connected to ecm pin A10?
Thread Starter
Le Mans Master
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
The speedo works fine and is accurate, everything associated with the vss is working but I did not see a vehicle speed on the monitor screen. I will take a look where you suggested, thanks.
Melting Slicks
Joined: Aug 2003
Posts: 3,380
Likes: 388
From: Lakeville MI
Here's an example of my dash (with some custom signals):
The data is real. Dyno pull on a warm summer day with warm intercooler as evidenced by the elevated MAF Air Temp. 165 ecm with my $33B code.
The data is real. Dyno pull on a warm summer day with warm intercooler as evidenced by the elevated MAF Air Temp. 165 ecm with my $33B code.
Last edited by tequilaboy; Aug 1, 2013 at 11:43 PM.
Race Director
Joined: Sep 2003
Posts: 16,835
Likes: 337
From: Database Error Indiana
Melting Slicks
Joined: Aug 2003
Posts: 3,380
Likes: 388
From: Lakeville MI
Thanks.
This pull was around 480 rwhp and ~9 psi boost with 63 lb/hr injectors. The blower is consuming some power, so requires significantly more airflow for a given output than a naturally aspirated car would.
With cooler air temps on the road, I've seen flow in the vicinity of 480 gm/sec with same tune and pulley configuration. As such, the tune needs to be flexible enough for varying conditions.
This pull was around 480 rwhp and ~9 psi boost with 63 lb/hr injectors. The blower is consuming some power, so requires significantly more airflow for a given output than a naturally aspirated car would.
With cooler air temps on the road, I've seen flow in the vicinity of 480 gm/sec with same tune and pulley configuration. As such, the tune needs to be flexible enough for varying conditions.
