Winter Upgrade
 

pulled the 540 out. now going to put a 598 with a 1071.
https://cimg4.ibsrv.net/gimg/www.off...f5e34eff40.jpg

Wow, that's quite the upgrade! Can't wait to hear how it runs with that power. Will that fit under the hatch?

well, i am going to have to do some cutting no doubt about that.

So yeah, that's kind of badass. :D What kind of speeds with the 540?

85 @ 5600 spinning a 30 bravo one.

So, how is this project going ? Inquiring minds want to know.

Update
 

Just got the vinyl back last week. Scoop got back on Sunday. Do some wiring and cleaning and should be good to go.
pic's
https://cimg9.ibsrv.net/gimg/www.off...ee44157dc6.jpg
Just got the vinyl back last week. Got scoop back Sunday. Have to wire the new MSD box. And a good cleaning.
https://cimg2.ibsrv.net/gimg/www.off...7d09bf0f29.jpg
Have a little more to do in here.
https://cimg6.ibsrv.net/gimg/www.off...a472e494ce.png
Have to install scoop

Yikes that looks tight in there! Can't wait to hear how it runs. Can you post a picture of the backend of your boat? I wanna see what tabs you are running with that crazy hp.

Update
 

Stock tabs, external steering, ad on, nose cone on drive.
https://cimg5.ibsrv.net/gimg/www.off...a94a4aca76.jpg
Back.

so, i bought what i thought was an XR upper and an IMCO lower. put it on and could not get on plane. what the heck. go back home measure the drive and it's a -2 shorty. tabs down, drive tucked, as soon as it started to roll over on plane, the prop would blow out. so it's safe to say that my prowler don't like a shorty. just in case someone is thinking about installing one. i guess i'll order a spacer and try it again.

Maybe try a cavitation plate like Max Machine’s or ????

there's one on it.

Shorty
 

Wow, I hope you get it sorted out. I'm finding these hulls are finicky. I put a max machine worx cavitation plate on mine to help with the Sonic porpoise. Didn't do much. So after I blew my upper, I took it off and sold it. Now running a stock low hr bravo. Just have to use tabs and tuck the drive. The boat when running for speed does not like the drive all the way trimmed like most v boats. It will still hop at speed when trimmed too high. I'm thinking it has to do with the notched transom. That's why a shoorty doesn't work. Plus the hull has a pretty pronounced rocker built in. I really notice it when my boat is on the forklift. So now I'm back to wondering if longer tabs would be better. I have the Bennett 12x12 performance on it.

i agree, these boats don't like alot of positive trim. it's all by feel. when i'm trimming mine out, as soon as it starts to veer to the right, just tap the trim down and that's the spot. the only time i really use my tabs is getting on plane. i was going to buy a spacer but i think i'm going to wait, maybe someone will want to trade my shorty for a std length 1.36 ratio. i haven't gone flat out with it yet. i've had it up to 75 at 4200 rpms with alot of throttle left, like i still ain't into the 4 barrels yet. red line is 6000 rpms, but with the 34 pitch i think it's going to run more than that.