7.5 k&b mod - RCCanada - Canada Radio Controlled Hobby Forum
RCCanada - Canada's Radio Control Hobby Forum
General RC Boat Discussion Discuss RC Boats, submarines & hovercrafts in electric or nitro.

Thread Tools Display Modes
Old 09-18-2011, 12:10 PM   #1
RCC Apprentice
Join Date: Apr 2010
Location: white rock

Feedback: 0 / 0%
Posts: 42
Total Props: 0
7.5 k&b mod

       Remove this ad - become a site supporter!
Iam new to boats I have a outboard and I need more speed I use to be a pylon racer so it in my blood please any info will help it seems to be impossible to find any info online
crazy is offline   Quick reply to this message.

Sponsored Links - Subscribe to remove this ad.
Old 09-18-2011, 12:17 PM   #2
RCC Senior Contributor
mogman's Avatar
I am: Dave C
Join Date: Jan 2006
Location: Pitt Meadows,B.C.
Radio of choice:
JR 9303
# of RCs: 30+

Feedback: 10 / 100%
Posts: 723
Total Props: 7
Re: 7.5 k&b mod

Back in the day, I used to remove the carb, put a spraybar across the opening where the two setscrew would go, use crankcase pressure, run an exhaust throttle....quite a bit more power and speed. It did use considerably more fuel though....there was a big cloud of fuel spray at the spray bar, engine used what it could take, the rest just dispersed into the air.
Dave Collis
Pitt Meadows B.C.
maac 37241
mogman is offline   Quick reply to this message.
Old 11-13-2011, 07:50 PM   #3
RCC Contributor
I am: Thomas H
Join Date: Nov 2011
Location: Brampton On
Radio of choice:
# of RCs: 20

Feedback: 8 / 100%
Posts: 283
Total Props: 2
Re: 7.5 k&b mod

for more speed over a stock k&B you need to add a pipe.

Mod the piston and liner for better flow will also help.

X447 prop
impba15713 is offline   Quick reply to this message.

Quick Reply

Register Now

In order to be able to post messages on the RCCanada - Canada Radio Controlled Hobby Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Member names may only be composed of alpha-numeric characters. (A-Z and 0-9)

!!ATTENTION ADVERTISERS!! If you intend on advertising anything on this forum, whatsoever, you are required to first contact us here . Additionally, we do NOT allow BUSINESS NAMES unless you are an Authorized Vendor. If you own a business, and want to do sales on this site via posting or private message, you will need to follow the rules. Shops, Stores, Distributors, Group Buys without being authorized will see your account terminated.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Your Name
Your first name and last initial is required if you plan on using the forum.
Which city & province you live in. This is mandatory for classified listings.
Radio of choice?
Which radio is your current favorite to use?
Number of RC Vehicles?
How many boats, cars, planes do you own?


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
vBulletin Message

Thread Tools
Display Modes

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Aurora 9 and Optic 6 72 & 2.4 Ant Mounting Mod Wayne MIller Electronics 3 07-22-2011 09:10 PM
XPS 2.4ghz mod & 10ch rx flyinguy-in-whistler FS - Electronics 0 10-30-2010 08:36 PM
JR 9303 2.4 mod + 72mz mod with AR7000 and DSMTransmitter Case hanger 7 FS - Electronics 4 10-14-2008 07:16 PM
can i mod ? eagle2flyer Construction Ideas, Hints and Tips 9 02-19-2005 03:07 PM

All times are GMT -5. The time now is 04:23 PM.

vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.