Yes. The request is created in HttpUtilsService.ProcessNextTask.
You can add the timeout there:
B4X:
If Post Then
If PostInputStream.IsInitialized Then
req.InitializePost(link, PostInputStream, PostLength)
Else
req.InitializePost2(link, PostBytes)
End If
Else
req.InitializeGet(link)
End If
req.Timeout = 60000 '<-- new line