K&B Sleeve Mods

[Geraghty]

Re: Allen Burn's K&B 3.5

Was I the only guy at the Springfield District 8 race that noticed Allen was running a red carb on his A Stock Tunnel? I choose not to be the "Pond Nazi," but that engine is not a legal NAMBA A Stock engine with the red carb. I don't think there'd be all that much, if any, performance loss by switching to the legal gold carb.

JD

RE:A NAMBA stock 3.5 tunnel,not only is there no performance "loss" by changing from the "Red carb"[.343" bore]to the K&B Gold carb [312"bore] ,there is a performance gain if you understand how to set the boat up using the stock "Gold" carb.

 

[Geraghty]

I never saw a K&B 3.5 come out of a box with a purple carb. Here's how I remember the K&B 3.5 carbs:

1. Black Perry carb

2. Tube carb with throttle exhaust

3. Black carb

4. Gold carb

JD

You are right.......that is the only way they came on the 3.5 outboard.

 

[VansRacing]

Carl and others, I am working on an adaptor plate for my Geraghty w/c 21 K&B

I will make it fit a K&B leg so the test will be as close as possible to a direct comparison to the 'sport' K&B chamber in the K&B leg to the OS muffler

Cheers

Kris

Kris,

Sounds good. I have Mitch Atwell Jr's (JaxRacer) K&B SS here to work with. We are working on a slightly modified can muffler design to see how much can be gained over the stock can-type muffler. We are still using a straight can but we are putting the exhaust in one end instead of the center and the can is slightly larger in diameter than the current 1-3/32" dia can.

Our can is the same length but is 1-1/4" in diameter.

We also have a modified O/S muffler to put on it.

It will be interesting to see what can be done. We all feel like it will work better. How well...who knows?

-Carl,

 

[Chris Wood]

Carl and others, I am working on an adaptor plate for my Geraghty w/c 21 K&B

I will make it fit a K&B leg so the test will be as close as possible to a direct comparison to the 'sport' K&B chamber in the K&B leg to the OS muffler

Cheers

Kris

Kris,

Sounds good. I have Mitch Atwell Jr's (JaxRacer) K&B SS here to work with. We are working on a slightly modified can muffler design to see how much can be gained over the stock can-type muffler. We are still using a straight can but we are putting the exhaust in one end instead of the center and the can is slightly larger in diameter than the current 1-3/32" dia can.

Our can is the same length but is 1-1/4" in diameter.

We also have a modified O/S muffler to put on it.

It will be interesting to see what can be done. We all feel like it will work better. How well...who knows?

-Carl,

after watching a o.s motor on a stock tunnel boat this past weekend i have no doubt in my mind which motor i would be running ....

chris

 

[Grimracer]

Carl and others, I am working on an adaptor plate for my Geraghty w/c 21 K&B

I will make it fit a K&B leg so the test will be as close as possible to a direct comparison to the 'sport' K&B chamber in the K&B leg to the OS muffler

Cheers

Kris

Kris,

Sounds good. I have Mitch Atwell Jr's (JaxRacer) K&B SS here to work with. We are working on a slightly modified can muffler design to see how much can be gained over the stock can-type muffler. We are still using a straight can but we are putting the exhaust in one end instead of the center and the can is slightly larger in diameter than the current 1-3/32" dia can.

Our can is the same length but is 1-1/4" in diameter.

We also have a modified O/S muffler to put on it.

It will be interesting to see what can be done. We all feel like it will work better. How well...who knows?

-Carl,

Chris,

That OS was box stock too.. i did yank the head shim however... Just a little more prop work..

Grimracer

after watching a o.s motor on a stock tunnel boat this past weekend i have no doubt in my mind which motor i would be running ....

chris

Carl and others, I am working on an adaptor plate for my Geraghty w/c 21 K&B

I will make it fit a K&B leg so the test will be as close as possible to a direct comparison to the 'sport' K&B chamber in the K&B leg to the OS muffler

Cheers

Kris

Kris,

Sounds good. I have Mitch Atwell Jr's (JaxRacer) K&B SS here to work with. We are working on a slightly modified can muffler design to see how much can be gained over the stock can-type muffler. We are still using a straight can but we are putting the exhaust in one end instead of the center and the can is slightly larger in diameter than the current 1-3/32" dia can.

Our can is the same length but is 1-1/4" in diameter.

We also have a modified O/S muffler to put on it.

It will be interesting to see what can be done. We all feel like it will work better. How well...who knows?

-Carl,

Chris,

That OS was box stock too.. i did yank the head shim however... Just a little more prop work..

Grimracer

after watching a o.s motor on a stock tunnel boat this past weekend i have no doubt in my mind which motor i would be running ....

chris

Just bolt it on and go.... I did however pull the head shim..

Grimracer

 

[james irwin]

 

It is simple to do, you really can't go wrong as long as you leave the chrome alone!

 

Ryan

 

Wow! Thats a pretty bold statement. :huh: Ive seen some sleeves that have gone REALLY wrong... Dremels should be banned from some peoples hands. Chrome touched or not...

 

 

 

~James

 

AMEN to that!!!!!!!!!! :lol:

 

 

HEY RODNEY ,LETS SEE HOW WELL I TAUGHT YOU . TELL THEM WHAT I TAUGHT YOU , ITS OK JIMBO GOD BLESS