Thru Hull

[Maxum 97 2300sc]

I have a 23' Maxum (Bayliner) Alpha one 5.7 Merc. I was thinking about trim tabs and a thru hull exhaust. Would th Thru Hull give me more performance? If so around how much more? 5 to 20hp????

 

[HT32BSX115]

Re: Thru Hull

I had thru hulls on my 1987 Four Winns 211 Liberator when it had the 460 King Cobra in it. I also had the Capts Call selectable exhaust.

It made a HUGE difference in noise. It made NO difference in performance, zero, zip, nada. Everybody that rode in my boat yelled at me to "turn it off!!!" every time I went thru-hull.

When I installed the BBC and Bravo III (which by the way, came out of a 98 23' Bayliner) I neglected to install the Capts Call. I still have the holes in the back (I glued them shut) , but it just wasn't worth it to re-install the Capts call.

If you want more performance, pull the 5.7 & Alpha and put a BBC and Bravo I or III in it.


Cheers,

Rick

 

[45Auto]

Re: Thru Hull

I have Captain's Call (selectable) exhaust on my 425 HP 496HO in a 22' Crownline. It also has a GPS speedo and Smartcraft instruments which show instantaneous fuel flow, instantaneous fuel mileage, etc. As HT32BSX115 says, it makes absolutely no difference in speed or fuel consumption whether I am running thru the drive or the thru hulls. It does sound awesome with the thru hulls open tho!

 

[Maxum 97 2300sc]

Re: Thru Hull

I wont bother. Maybe I'll get a bigger motor in a few years. Maybe!

 

[wca_tim]

Re: Thru Hull

if you want to make a difference in horsepower, you can get those kids of gains with good aftermarket manifolds, but the y-pipe vs through hulls don't become limiting until probably 350 - 400 horsepower...

 

[Mkos1980]

Re: Thru Hull

I just installed the Corsa Q&Q Last week. I absolutely Love it. Quiet when I want and loud as well. Lake Erie has no noise restrictions so its all good. With some of the boats on the lake I'm the quietest lol.