mrondeau wrote: Tom,
Fill out the online form and see where it would put you. It seems to me that you are taking a bigger hit on your motor swap than you should.
I did use the online form, Mark, I just deleted my entry after doing it, since I didn't think they would want their system cluttered up with cars that are never going to compete in their region.
This is what their rules says about my type of engine swap:
The engine has the same number of cylinders as stock but this engine type # was not available in the same bodyshell group.
ACTION : Go back to the base model choice and select lowest base point model available for the year of the Vin # and in the same bodyshell group
ACTION : Go back to the engine capacity table and select the correct option for capacity increase. Answer all engine modification options as deviations from the stock configuration of the engine type for the base model now selected.The last sentence says to me that I must also take points for everything that is different about my SC engine compared to a stock '65-68 911 2-liter. So in addition to the 150 points for displacement, I also have to take the 15 points for throttle body change and 10 points for induction system change (CIS injection vs. carbs), making a total of 175 points for the swap. Our Zone 8 rules distinguish between a "stock" engine swap and a custom engine build by calculating points based on HP alone, vs. calculating them on displacement change plus individual component changes. This means that if you are going to change engines, you may as well go with a "full boat" custom build, and discourages the relatively easy and inexpensive stock engine swaps that are so common with the early cars. A stock 3.0SC engine makes 180 HP, while a custom race engine of the same displacement could make 250-260 HP easily, while being penalized the same number of points under the GGR system. This is one of the reasons I like our system better.
I was surprised that in their system there are higher penalties for autox in more categories than there are for TT. An LSD is penalized twice as much for AX than for TT cars. This makes no sense to me, as the stability under braking of an LSD is far more useful on the big track at higher speeds than it is in an autox in a low-powered, well set-up car. Weight reductions in particular seem to be penalized much more for AX, even though they are nearly as beneficial in TT. My car has 475 mod points for TT, but 530 for AX. Adding the base 170 for a 65-68 911, I end up in TT8 but AX6. It would not be competitive in either of those classes, from what I can see.
I may be in the minority, but I don't see their rules as being any big improvement over what we have, just different. As I said before, if the beef is that we have too many classes and not enough competition in some, I would look at consolidating classes instead.
TT