Stelling Boxes on a 320
 

I talked with Steve & Kenny today at Velocity. They put their heads together about my question, Stelling boxes on a 320? They said they never have tried it. We will call you back!

And they did. They scratched and brain stormed over the delima and told me that 12" aft in neutral position would probably not give me a speed gain but came to the conclusion that the 320 would have to handle better with them. The cool factor would be worth it.

The boxes are adjustable 3 holes. Low, neutral, and high but warned in any position but neutral would wear the u-joint. If the low or high hole gives the best results to raise and or lower the engines to run in neutral position to keep from wearing the u-joint inside the box.

Any thoughts?

It can get real expensive doing you're own R&D.

I'd use Imco neutral boxes and short lowers. Then adjust the prop shaft height with spacers.
The Stellings system beats on the drives when you shift.

VV I would not put them on,we have tried all types of different things to mine and the only thing that really settled it down was the Imco drives with the longer foot print and the Bravo 4 blades.I also have trim tab extension plates and they work really well in all water conditions.I think you would be spending good money for bad,you will also notice when you put more power in the boat it will change the entire attitude of the boat,the 320 hull likes more power to keep it up on the pad.The more power the better.If you rode in mine you would see what I mean.Good luck in making your decisions and I will help you with what ever I can.
Bill

I spoke to Steve on this also a while ago and while ultimate top speed wouldn't change - you would be able to go faster in most water conditions due to the better handling. Longer trim tabs help the 320 as well.

I would NOT recommend going with the shorter drive on the 320 as you'll need 5 blade props to hook up which will likely give you more stern lift then you'd like :eek:(plus be harder on your standard Bravo drive). This will be especially noticable if you power with 500's and run larger pitch props.

The reason for asking is I found a 2005 package, It is in the classifides. I planned on upgrading drives later but why not now when I do the motors. I made him an offer, if he takes it I will be taking the 320 to the grave with me. Man what a casket.

Blue Twin 525's 180 hrs
headers
tailpipes, mufflers Captains call
motor mounts
2 Stellings boxes
2 XR transom assemblys
3 XR drives, one new, others 6 hrs after re-build
Latham steering complete including helm pump
1 set hydromotive P-5 26's
1 set Merc labbed 5 blade 28's
Wiring harnesses & some guages.
This package is from a 05 382 fastech.
He is upgrading to 700 NXT's. 130K for the set of 700NXT's WOW!
These motors & drives were still under warrenty when they were removed.
I read 42 fountains @ 90mph with this package? My be advertised speed?

If your boat runs light in the bow adding boxes will make it lighter.

The wife says the 320 is like hang gliding on a dorrito, this set up should add some hot sauce.

Dude you need to ride in my boat,it is like an out of control missle,its like CONTROLLED CHAOS.:D

Bill, if I get this package since it comes with the boxes do you think I would be safe trying them. If it does nothing oh well?