I have tried them both ways on my race boat. Same boat,same power. For what ever reason my Krytonite likes them angled better. It cost me a ton to move them and then put them back. Maybe each boat has its own reasons for why its better on one than another. I can also tell you when I run my tabs at level on my SVL Extreem race boat trimmed out on the edge it makes my boat chine worse. If I raise the tabs out it takes the chine walk out. In my opinion tabs can be your worst or best friend. Use them right for your boat and you will see great progress. Wrong AND YOU MIGHT GET HURT AT SPEED. One of the best set up factorys in the world puts them level (Fountain) Im sure after all the testing they do it works best for them.
trim tabs help in 90 % of boat set up over bare stock
what they do is extend the wetted surface of your hull
theres a lot of science to where exactly we place them
i run mine
angled 3 inches in from the chine
3/8 inches above absolute transom bottom acts a bit like a third step
the comments all the way back to the beginning are spot on
i use them as a third step and to keep my hull level
attitude of the hull to the water with my rig is important
fun boat to drive
my set up is average mom and pop performance boats up to the 70mph margin
Angled works for me.
I tell everyone in my experience, straight is best as the water just rolls under the trailing edge when angled they act like 2 rudders pushing water in opposite directions. However, you don't get as much bite in the water if you think you need it. Just something I found.
Last edited by bwd; 12-04-2010 at 02:49 PM.
Flat. Mine are flat. They create more lift and less drag this way. On an angle they actually spread out making the V wider and deeper, like dragging a sea anchor. This fixes chine walk and other handling problems because it slows you down. To correct these issues and not loose speed mount them flat. They can then use the water all ready moving forward (from the energy from the hull) to stabilize and lift with little loss of energy. Angled tabs also get into green water that is static (IE not moving forward) and this takes more energy drag them through the water, again slowing you down not fixing the problem.
Alum Metal Fab
Custom Marine Sales
Dave's Custom Boats
Diamond Performance Parts
Double R Performance
Elton Porter Insurance
Fastboats Marine Group
GGB Exhaust Technologies
Grand Sports Center
Ilmor High Performance Marine
Lake Cumberland Marine
Lake Havasu Boat Show
Marine Technology Inc
McLeod Design Group
Performance Boat Center
Performance Marine Trading
Potter Performance Engines
Ron Sporl Performance
Speed and Custom Marine
Total Dollar Insurance
Teague Custom Marine
Wake Zone Marine Insurance
Young Performance Marine