Need Advise

[Lickety_Split]

Hello I am new to the jet boating world. I bought a 1975 sleekcraft last summer and i need some advise on what i should do next. The boat has a 455 olds with an american turbine jet. I want some more speed out of it what is the first thing i should do. Should i build more power with the engine our look at modifications to the jet? What mods will give me the most increase for my money. I know alot about engines but i have never worked with a jet before. well thanks for any advise you can give me!

[napabob]

Try:
http://www.americanturbine.com/
and
http://www.placediverter.com/

[sleekvino]

it all depends on how much cash you can put up you can get headers, loader grates ,diverter, roller rockers the list goes on and on even a ride/shoe plate it just cost the all mighty dollar.

[327,jet]

What do you want to acheive for speed ? 5,10,15 M.P.H. more .A Place Diverter is the first step ,then you need to load the pump.A loader grate should help. If you want more R.P.M.'s you will have to swap impeller's .Cam , Intake and more exhaust flow would be next. Be careful not to bump up the 455 without modifying the oil pump system. From what I have learned, this is their weak point. What are you running for a carb and manifold right now?JET ON !!!:D :D :D

[Lickety_Split]

Thanks 327,Jet I am running a edelbrock marine carb. 750CFM. the intake is stock.
It would be cheaper for me to add horsepower to the engine, than the place diverter and loader grate. would that be just a waste without modifiying the jet?

[Mr Twister]

You should try out Gun Lake, there are a few jets out there. Bring your mufflers. I think a Place diverter is a wise choice for a first upgrade, after all the mechanicals are sound. Being towed is no fun.

[Lickety_Split]

hey mr twister where are you from? I haven't taken my boat to gun lake yet but i would like to the only thing i don't like is how shallow it is. Have you been there? have you had a problem with it being shallow?

[American Turbine Man]

Lickety_Split
I will bet you have a Jacuzzi with an American Turbine "ENERGIZER KIT".
ATM

[Lickety_Split]

Yeah i did some checking and it is a jacuzzi with an American Turbine conversion. What does that mean? What are your opinions of it?

[Mr Twister]

Just north of Gun Lake. It is shallow here and there. I do see a few hot boats out there when its warm.

[Old Guy]

Hey Lickety,
I also have a Sleek Craft (1976) with an olds and a converted Jacuzzi. My conversion is with Aggressor parts. I live on Gun Lake. Some parts are quite shallow and some parts have rocks. I've been boating on Gun Lake for about 40 years and never had any major problem with rocks or shallow. Loud will bring the law. The lake is patrolled by Barry and Allegan county Sheriffs and the DNR. However, unless you do something real stupid, they leave you alone.