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Looking to get some more power. Any suggestions?

Posted: Tue Sep 29, 2015 2:02 pm
by Bloodybayou
Hey fellas, I'm very new to airboats. I bought my 17' alumatech about a month ago. It's got a 350 small block in it. My boat is rigged up for Bowfishing so I can run some charters on the side. I'm noticing that with 5+ people she's having a tough time getting on plane. Peddle to the floor she's only running 5400 RPMs. Any suggestions or advice would be helpful thanks!

Re: Looking to get some more power. Any suggestions?

Posted: Tue Sep 29, 2015 6:46 pm
by mojoe
A 17' boat with 5 guys loaded for bowfishing is a lot to ask of a small block.

Easiest way to make it perform better would be to leave the 2 biggest guys home :slap:

Re: Looking to get some more power. Any suggestions?

Posted: Tue Sep 29, 2015 8:01 pm
by skinny99
There is no replacement for displacement! Need some bore and stroke in that girl.

Re: Looking to get some more power. Any suggestions?

Posted: Tue Sep 29, 2015 8:03 pm
by dodobird
17' boat 5 ppl a small block and all the bowfishing crap on it id say shes doin great ......... :thumbleft: :florida:

Re: Looking to get some more power. Any suggestions?

Posted: Tue Sep 29, 2015 8:12 pm
by SteveReid
dodobird wrote:17' boat 5 ppl a small block and all the bowfishing crap on it id say shes doin great ......... :thumbleft: :florida:
Agree!!

Re: Looking to get some more power. Any suggestions?

Posted: Tue Sep 29, 2015 8:20 pm
by jeepinocala1111
Give more specs do you have a reduction drive what's the motor stock? Prop?

Re: Looking to get some more power. Any suggestions?

Posted: Tue Sep 29, 2015 8:36 pm
by SWAMPHUNTER45
That is a chore for a big inch engine.

Re: Looking to get some more power. Any suggestions?

Posted: Tue Sep 29, 2015 9:57 pm
by Bloodybayou
Do yall think adding any performance parts would help? Like maybe a super charger or something. I don't know what the gears are but it's a 3 blande carbon fiber prop

Re: Looking to get some more power. Any suggestions?

Posted: Tue Sep 29, 2015 9:58 pm
by Bloodybayou
1

Re: Looking to get some more power. Any suggestions?

Posted: Tue Sep 29, 2015 10:08 pm
by Chaseh
I run an 18x8 with a mild BBC, 1/2" poly and 3 row seating. I have run 9 people regularly, a 100 lb dog, 2 loaded coolers, and 40 gals and maxed out about 45mph. Dry she is very temperamental though. Cruises around 4-4200rpms at 26mph or so

Re: Looking to get some more power. Any suggestions?

Posted: Tue Sep 29, 2015 11:04 pm
by dodobird
look on the beltbox on the right side lower bottom should be few numbers............might go with wider blades find out what the numbers are and post them that's a lot of boat u have there might beable to go with the R blades using ur hub might help some MAYBE..... :florida:

Re: Looking to get some more power. Any suggestions?

Posted: Wed Sep 30, 2015 7:17 am
by SWAMPHUNTER45
I dont see a cheap upgrade.

A Paxton / Vortec style supercharger would be the path I would explore if everything else can support it. They are the compact units that are a blow thru design you see in Summit and Jegs.

Re: Looking to get some more power. Any suggestions?

Posted: Wed Sep 30, 2015 8:57 am
by Ronaldregan
That it will even move with 5 men and all that weight on front is a wonder,.Weight on front is a killer, had a 454 bb on 15/8 with simlar bow fishing rig,got stuck often, tool the rig off the front and it was a whole lot better.







14/8 alumitech wt 418 ,2.67/1 4blade 83in. R's