Wow, large gearcase with propshaft just under and very low ratio was fast??
What caused that do you think, more diameter with low ratio would get you out of the corners I guess?
How many seconds in a lap for your typical course?
Would make a cheap class i thought, big case on a 15" with stock 49er
We tried the 49-big foot-15 inch for several reasons. One was to compare the performance to the VP75 class which only allows long shaft motors. We had tried the long shaft version with a Checkmate a few years prior. T racers did not like the way the long shafts handle. The FE Class prior to 1975 ran big foot short shafts, so we were following that model. The test boat ran 57 to 58 mph with a 12.5 x 24 omc prop. Our course is approximately 1 mile at most sites....top T750 boats about 67 seconds....top T850 boats under 60 seconds. There is a big difference in lap times after lap 3....when we had 9 boats in a heat the water is rough! More prop diameter helps out of the turns in rough water. Another option we have tried on a lake runner is running the higher ratio 2 cylinder nitro on a 49. Works well and is less than half the cost a 3 cylinder nitro. I personally like this option better than the big foot.....same lower cost, but boat handles better and is 3 to 4 mph faster...low 60’s.
Last edited by hydrospeed77; 06-04-2019 at 05:58 AM. Reason: fix quote closing tag
Here in Ontario, Canada we have a shorter boating season and all fresh water so motors last longer and are in better condition compared to most areas. The 75 cent Canadian Dollar hurts when buying from the USA. With the above in mind I think a Hobby T Class would grow once we got a few boats racing. We need to take advantage of the good low cost motors available here and keep the spec rules simple and easy to understand.
HOBBY T CLASS
- V hull
- 850 lb minimum weight
- bone stock 3 cylinder 60 cubic inch maximum ..no custom parts!..Stock head and stock compression!
- no blueprinting
- MOTORS..choice of long or short shaft model
- OMC 49 small carb...choice of big or small lower unit
- Yamaha 52 no CES parts...choice of big or small lower unit
- Mercury 49, 52 or 59 bone stock
Should be a 55 to 62 mph class.
Current Other T rules would apply.
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Solid motor are part of the current T rules so Hobby Class could use them. The idea in Hobby Class is for the person who just wants to try T racing. They are not going to rebuild the motor, they will just buy a used cheap one and run it. T750 and T850 are very competitive classes where racers need to spend more. Hobby racers will use loaner props and safety gear. They will likely have less than $1500.00 invested. You will see experienced T racers and former champions run in this class. They want to grow the sport and are there to teach. We could see loaner complete outfits where newbie racers just sign up for an event. The low cost and availability of equipment make it possible!
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That Hobby, 750 and 850 sounds like a good time.
Merc 60 4S is just a smidge over 60ci though. 60.8 ish. Even though it's a turd in factory form, there are a few of us working to hop them up. Perhaps a 61 inch max would be better...
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