WSCC 1967 LeMans - AI No Top Speed

Ok I have been pulling my hair out a bit on this one. I am trying to run some 1966 PnG cars on the WSCC 1967 LeMans track. The AI cannot seem to top 195 on the Mulsanne no matter what I have tried. Has anyone else encountered this? In my testing, I am using the Ford GT40 Mk11 against other cars, including other Ford GT40 Mk11 from the same mod.

I tried to make a setup for the AI and still nothing. To validate, I went to 60s Lemans and the AI top speed was fine, and inline with expected pace.

Below are various tests I have done as well:

• If I use the PnG Ford GT40 Mk11 on 60's Le Mans track, the AI will be able to maintain their gap over me on the back straight. I hit top speed.
  If I use the PnG Ford GT40 Mk11 on the WSCC 1967 Le Mans track, I am able to gain over a second on them in the same straight. I hit top speed.
  If I used the WSCC 1967 Mod Ford GT40 Mk11b at the WSCC 1967 Le Mans track, the AI will be able to maintain their gap over me on the back straight. I hit 210 top speed.
  

My personal straight-line speed is the same on the straight in both the PnG Ford GT40 and the WSCC Ford GT40 Mk11b cars as well.

For some reason it seems that the issue is only when I use the PnG cars, or classes of cars. I took a Ferrari from the WSCC mod and added it to a class for the 1966 PnG cars, and it too does not keep pace on the straight, but it does in the realm of it's own mod. I would assume if it was the AIW track file, then running the same track in either PnG cars or WSCC cars would have netted a similar issue.

WSCC 1967 LeMans has been heavily modified so have the mods cars this could be the reason.

I could see that being the case, but I have seen this people use this track with the desired results (see GPLaps 1966 LeMans video). Any ideas where potentially I’d need to look to find any lines that could be the culprit?

What I can report after testing the track is that AI slows down at the beginning of Hunaudieres straight which causes them to loose about 5 secs in laptime. I tried to fix with AIW tool but no luck. Another thing to being looked at by track experts I'm afraid.

AWK wrote:

I could see that being the case, but I have seen this people use this track with the desired results (see GPLaps 1966 LeMans video). Any ideas where potentially I’d need to look to find any lines that could be the culprit?

Be sure that you're not running out of gears.
IAW, make sure that the diff is long enough to run the Mulsanne Straight just below max rpm.
So set in the garage the final drive to the max (or one less, a bit trial and error).
Many of the PnG cars have a too low FinalDriveSetting in the hdv file, less than available in the grb file.
And the AI cars use the FinalDriveSetting from the hdv file so may run with a too short diff for Le Mans.

So when i tried to do a custom setup for the cars to use, nothing changed. I went into the individual car HDV file and manually changed it to the right setting, and that worked.

With the ability for the AI to use the custom setup enabled in the PLR file, shouldn't that work to overwrite this final drive setting anyways? I guess then the alternative issue would be why did the AI not use the custom setup file? Outside of file name and location, are there other reasons why this would not be used by the AI?

AWK wrote:

So when i tried to do a custom setup for the cars to use, nothing changed. I went into the individual car HDV file and manually changed it to the right setting, and that worked.

With the ability for the AI to use the custom setup enabled in the PLR file, shouldn't that work to overwrite this final drive setting anyways? I guess then the alternative issue would be why did the AI not use the custom setup file? Outside of file name and location, are there other reasons why this would not be used by the AI?

I'm sorry but I don't know, I never use the custom .svm files.