TinBoats.net
The original aluminum boat site!
Forums
New posts
Search forums
Blog
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Jet Boats
General Jet Boat Discussions
New to tinboats
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support TinBoats.net:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="Lil&#039; Blue Rude" data-source="post: 368333" data-attributes="member: 4627"><p>Stay away from changing port height especially on that motor. Finger ports help. Leave the support in the pump. With outboards the lighter rotating assembly helps make the motor more responsive. Look up Gordon Jennings two stroke tuning hand book. A lot of good info on porting and what changes effects what. He talks about high rpm street bikes from the 70's or so but a lot of it still applies to all two strokes.</p><p></p><p>Your boat can probably make upper 30's but still don't thing it's gonna pull the 7 3/16 impeller. I've hit 50mph with a 6 7/8 3 blade stainless.</p></blockquote><p></p>
[QUOTE="Lil' Blue Rude, post: 368333, member: 4627"] Stay away from changing port height especially on that motor. Finger ports help. Leave the support in the pump. With outboards the lighter rotating assembly helps make the motor more responsive. Look up Gordon Jennings two stroke tuning hand book. A lot of good info on porting and what changes effects what. He talks about high rpm street bikes from the 70's or so but a lot of it still applies to all two strokes. Your boat can probably make upper 30's but still don't thing it's gonna pull the 7 3/16 impeller. I've hit 50mph with a 6 7/8 3 blade stainless. [/QUOTE]
Verification
Post reply
Forums
Jet Boats
General Jet Boat Discussions
New to tinboats
Top