Super Cat any drive combination
 

This will open the class up to more boats and manufactures.
Why do we stay with 500ci. engines?With all the new good parts available today.Open it up from 600ci. to 632ci.Cams at .650 lift and rev limit set at 6200 or 6400rpm. Engines will make the same power as a 500ci.engine at 7600rpm but last longer.This will cut caust.

Dave W

Since friction losses increase with the square of the engine speed, it makes make sense for peak power to be made at the lowest possible engine rpm. I'll always trade rpm for cubic inches in a marine application.

In my opinion, the best news coming out of both APBA and SBI has to do with the drive system rule changes for both Supercat (UIM) and Supercat Light. Limiting Supercat to #6's and Supercat Light to Bravo style outdrives (without the unreal weight penalty) never made sense for the racer. Now, a "bulletproof" package can be built and raced in both classes and in either sanctioning body!

Couldn't agree more.....and the economics are racer friendly....a pair of BPM's or Trimax drives cost one quarter the price of #6's....are higher performing (when coupled with a rudder)....and are equally bulletproof.

The europeans learned this years ago...not one boat in the C1 fleet runs anything but shaft drives.

Do you mean not limiting to #6 drives

Do you mean not limiting to #6 drives

Yes, not limiting to #6's. Mercury needs a shaft drive in their product line!

To realy cut caust we need to change the engine package to 600 or 632ci. To stop the need to rebuild after one or two races.

I agree to various drive specifications. One problem with that is Mercury Racing gets very upset if they are not the only ones. This problem circulated for the past few years.

DPT is correct. However, the #6 rule was only initiated because Mercury was paying APBA Offshore a six digit annual fee which they no longer do. I.e., the rule and/or drive choice has never been in the best interest of the racer.

You'd think they were monopolists the way they behave;)

POST

The drive thing looks to be a done deal,maybe the engines next.Build bigger engine run it easier and make same power.Engines and drives can run all year.

Doint throw out the current engines,add a 600ci engine package option with same power.limited by cam and rpm to 6300 .In the long run 600ci will cut caust.

Here is my question for everyone on this topic. What do you feel is the problem with the current specs for the motors for the Supercat class? In this type of racing you can kill a motor pretty easily if you wanted too. Set combinations have much to do with this and so does the individuals on the throttles. Always remember that the engines all come from parts fabricated by humans and built by humans leaving the possibility for a potential Blow Up. Unfortunately nothing comes out absolutely perfect.

:cool: :cool: :cool:

The current engine is ok. The caust of both engines are the same, it might be the time to update the engine size to save on rebuilds, not to eliminate the current engine.A engine runing is 6300 is better then 7600rpm .Bigger is better.

The current engine is ok. The caust of both engines are the same, it might be the time to update the engine size to save on rebuilds, not to eliminate the current engine.A engine runing is 6300 is better then 7600rpm .Bigger is better.It also opens the market to sell the engines, 600ci is easier to sell.

So has this been addressed to the different organizations or have they brought it up yet. It seemed to me last year that the Mercury engines were more reliable if you can even say that in this form of motor sport. Although the Sterlings showed to have a little bit more power or maybe it was just the person using that power. Should be interesting to see what happens.

DWES - It's costs and everything is looking good in APBA Offshore. BH

If the drive rule is out, are they allowed to modify the drives they use? Cutting down the skeg size and thickness would cut down the drag on the 6 quite a bit.

APBA is looking good,it had planned on a Super Cat International class with surface drives, rudder and 572ci. engines 600ci. would even be better.