Boats

[M Miner]

Sorry for this question but, can you use the same boat in different classes by changing engines?

[blueskyracer]

yes you can as long as the boat can handle it

[Shane_B]

That is why the Yamato classes are so popular - can race CSH, OSY, 300SSH, 500 MOD with same boat if you wish... (CSH/OSY same engine even, 300SSH needs to be 'sealed' but can also race in CHS/OSY with different foot, and can even use same powerhead for the 500 MOD class) . Same for ASH, AXH, 200 MOD...

[Ram4x4]

Yes you can, within reason. For example, you could put a 102 Yamato on a C class hydro and race in CSH with it. You can then put a restrictor plate on the 102 engine and run 20ssh with it. You could then take the 102 engine off and put a sealed 302 or 321 Yamato on it and run in 300ssh, but there are some rules that have to be met:

1. For 300ssh there are hull dimension requirements. If your hull meets 300ssh requirements, it will be good for the other classes too.
2. There are minimum weight requirements for each class (the weight is hull + motor + driver + all driver safety gear), basically configured as it would be when you are driving.

a. CSH min. weight = 440lbs
b. 300ssh min. weight = 420lbs
c. 20ssh min. weight = 400lbs

Typically, unless you have a really light weight hull, or you are smaller stature (150-160ishlbs or less), you'll make the min weights for 300ssh or CSH pretty easily, if not over them by a fair bit. 20ssh is "light" by C class standards. If you are under weight for a class, you'll have to add weight to your hull.

One thing you DON'T want to do is try to take a C class hull and put a 44xs or Tohatsu on it and run it in D class, that'd be dangerous, if not illegal (not a D class driver, so not sure if they have a minimum hull length/width that would preclude that anyway).

[ctpdsr]

Also - when considering multiple classes on one hull, be aware of the transom height the various motors need to operate.

[T Chance]

In the Pro Division it is not uncommon to run a 250cc, 350cc, 500cc, and 700cc motor all on the same 13' runabout. In stock classes that would be an A, B, C, and D. I have to note that Pro runabouts are very different than stock runabouts, although D, E and Super E Mod also run well on a 13' Pro runabout.

[M Miner]

Thanks guys.