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
Boats
Motors
Nissan/Tohatsu 9.9 two stroke upgrade(I wanna make it fast)
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="TJBrown" data-source="post: 97191" data-attributes="member: 1678"><p>More Air in means more fuel in which makes more power. Bigger Carb and intake ports are a must on N/A engines. On top of that, Porting requires not really bigger but better flow. You can gouge out the intake port and actually do more damage to the cfm than you do good. Two stroke engines also require back pressure on the exhaust side to keep the engine happy. So with the increase in air / fuel in, you will have to do some work on the exhaust system but like i said, with two strokes, it is tricky. I would stay away from higher octain fuels. Going to higher octain will actually slow the motor down. Fuel doesnt not burn completely with you run too high octain on lower compression engine. Stick with what the manf sugguest or maybe two points higher at the most. I do not have tons of experience with Two Stroke Engines but i do build the engines for our 2 Super Comp Dragsters =)</p></blockquote><p></p>
[QUOTE="TJBrown, post: 97191, member: 1678"] More Air in means more fuel in which makes more power. Bigger Carb and intake ports are a must on N/A engines. On top of that, Porting requires not really bigger but better flow. You can gouge out the intake port and actually do more damage to the cfm than you do good. Two stroke engines also require back pressure on the exhaust side to keep the engine happy. So with the increase in air / fuel in, you will have to do some work on the exhaust system but like i said, with two strokes, it is tricky. I would stay away from higher octain fuels. Going to higher octain will actually slow the motor down. Fuel doesnt not burn completely with you run too high octain on lower compression engine. Stick with what the manf sugguest or maybe two points higher at the most. I do not have tons of experience with Two Stroke Engines but i do build the engines for our 2 Super Comp Dragsters =) [/QUOTE]
Verification
Post reply
Forums
Boats
Motors
Nissan/Tohatsu 9.9 two stroke upgrade(I wanna make it fast)
Top