how do i stop water from rushing against the lower unit part of the motor and arcing up and into the boat? . i have a 20 inch transom now with one for a long transom. and the bottom of the gear box pushes water

hope thats easy to understand. i dont know how else to word it

Sounds like you have a short transom boat and a motor set up for a tall transom.

Have you played with separate trim settings?
Is the boat plaining out?
Are there bad hooks in the hull?

i checked it 2day and it measures almost 20 inches and the guys at the dealer said its the correct motor. has anyone ever used a jack plate with a mud motor? then i could mess around with the motor height

What kind of boat, what kind of motor?

its a tracker grizzly all weld 1448 and a 23 hd sport and i got pods welded on. it just dosent seem right . most people with this set up are geting in the 20 mph im getting like ten. and i get the water rushing up into the boat when im not at full rpm

I would say the pods are a lot of your problem. Your boat isn't ideal but its not causing the water hitting the transom issue.

it did that water thing before the pods to. the pods just level the boat out a bit since the motor is so heavy

i just gotta find some body who knows about mud motors in person and have them drive it. suck tho bc the dealers like 3 hours away

I used to have a grizzly 15-42 with a 23 on it and it did pretty good.

can the boat just be to small? would a 15 make a differnce instead of a 14. im just pist lol i was so excited to get it and watching videos of mud motors and now it sucks lol.

I may be wrong but it seems to me that the pods are creating a narrower channel for the water to come into, making it go in the boat, I'm no expert either, that's just what I'm picturing.

ill take some pictures tomarrow when i go out if that will help out . thanks for everyones input so far

Does the transom height measure 20" or from the top of the transom to the bottom of the boat measure 20" if it's the latter, you've got a short transom with a tall transom motor.

Take a picture from the bottom, sounds like the gear box as you call it is acting like a board hitting the water giving the reason some think you have a tall transom motor on a not tall enough transom hull.