AiM Steering Angle
08-23-2020, 02:17 PM
#31
Rennlist Member
At the time I didn't have a logger plugged into the GT4 at all. I could put the C125 into that again...I think I remember where the CAN taps would need to go...but access to the alignment rack was kind of a one-off.
I will say though that the ratio in the GT4 from measurements I took was pretty much linear across the range -- more so than the GT3 and that as you can see from the numbers varied a lot less than 30%.
Where did the 12.7 data point come from?? If we have access to manufacturer/OEM schedule data for the rack then I'd ignore the measurements altogether...
I will say though that the ratio in the GT4 from measurements I took was pretty much linear across the range -- more so than the GT3 and that as you can see from the numbers varied a lot less than 30%.
Where did the 12.7 data point come from?? If we have access to manufacturer/OEM schedule data for the rack then I'd ignore the measurements altogether...
08-23-2020, 02:57 PM
#32
At the time I didn't have a logger plugged into the GT4 at all. I could put the C125 into that again...I think I remember where the CAN taps would need to go...but access to the alignment rack was kind of a one-off.
I will say though that the ratio in the GT4 from measurements I took was pretty much linear across the range -- more so than the GT3 and that as you can see from the numbers varied a lot less than 30%.
Where did the 12.7 data point come from?? If we have access to manufacturer/OEM schedule data for the rack then I'd ignore the measurements altogether...
I will say though that the ratio in the GT4 from measurements I took was pretty much linear across the range -- more so than the GT3 and that as you can see from the numbers varied a lot less than 30%.
Where did the 12.7 data point come from?? If we have access to manufacturer/OEM schedule data for the rack then I'd ignore the measurements altogether...
I remembered wrong, it was 12.37, not 12.7 see below.
https://www.planet-9.com/threads/qui...1/post-2104377
Last edited by Squeaky; 08-23-2020 at 03:53 PM.
08-23-2020, 07:40 PM
#33
Rennlist Member
Well, you're right, I hope I wasn't _that_ far off the mark. Perhaps the car has to be in motion for the variability to kick in?? I can feel it coming on, I'm going to have to put the C125 in the car and do the same thing as I did with the GT3 only using the PCM angle output and see what that gives me...if 16.5 is right then I guess that's the next thing to be suspicious of for error source??
Wonder what technical sheet that is for the GT4?? I have tried to snag as many docs as I could for that but haven't found any that have those numbers in. I wonder if there's a GT3 equivalent...presume there probably is somewhere. Thanks for the pointer to that thread -- interesting!
Wonder what technical sheet that is for the GT4?? I have tried to snag as many docs as I could for that but haven't found any that have those numbers in. I wonder if there's a GT3 equivalent...presume there probably is somewhere. Thanks for the pointer to that thread -- interesting!
08-25-2020, 01:56 AM
#35
Rennlist Member
Fair warning: it might take a couple of weeks to get to this as I'm headed to Thunderhill this week and VIR the following week so not much free weekend time to mess with this until we're into September.
08-25-2020, 10:33 AM
#37
Rennlist
Basic Site Sponsor
Basic Site Sponsor
Join Date: Jun 2008
Location: Durham, NC and Virginia International Raceway
Posts: 19,097
Received 3,270 Likes
on
1,865 Posts
Coming to VIR? GREAT! Ping me. Would like to visit.
__________________
-Peter Krause
www.peterkrause.net
www.gofasternow.com
"Combining the Art and Science of Driving Fast!"
Specializing in Professional, Private Driver Performance Evaluation and Optimization
Consultation Available Remotely and at VIRginia International Raceway
-Peter Krause
www.peterkrause.net
www.gofasternow.com
"Combining the Art and Science of Driving Fast!"
Specializing in Professional, Private Driver Performance Evaluation and Optimization
Consultation Available Remotely and at VIRginia International Raceway
08-26-2020, 02:23 AM
#38
Rennlist Member
Thanks for the invitation -- count on meeting up if you are around over that WRL weekend...I'd really like that.