Motorized Bicycle Engine Kit Forum
Register FAQ Members List Calendar Mark Forums Read


Search Titles Only

Sponsors
To be a sponsor Contact Us
Our Forums


Go Back   Motorized Bicycle Engine Kit Forum > Bicycle Motor > High Performance Bicycle Engine Tips

High Performance Bicycle Engine Tips We all want our bicycle engines to push our bikes faster. Get exclusive engine modification tips and suggestions from us.

Intake Manifold Idea


Discussion at Motorized Bicycle Engine Kit Forum in the High Performance Bicycle Engine Tips forum. hello All, i was just looking around the forum and seen that some people have carb clearence issues. well i ...
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 05-19-2009, 09:17 PM
joe-craft's Avatar
Motorized Bicycle Member
 
Join Date: Aug 2008
Posts: 46
Default Intake Manifold Idea

hello All, i was just looking around the forum and seen that some people have carb clearence issues.
well i got an idea and im going to experiment, if it works out i may put it into production.
Attached Thumbnails
intake-manifold-idea-intake.jpg  
Reply With Quote
  #2 (permalink)  
Old 05-20-2009, 12:01 AM
Motorized Bicycle Senior Member
 
Join Date: Jun 2008
Location: El Paso, Texas
Posts: 95
Default Re: Intake Manifold Idea

That is a good idea, here's mine

Reply With Quote
  #3 (permalink)  
Old 05-20-2009, 12:06 AM
datz510's Avatar
Motorized Bicycle Elite Member
 
Join Date: May 2008
Location: Mesa, AZ
Posts: 290
Default Re: Intake Manifold Idea

If you do a full 90 degree bend, you might need to provide a straight section that can be cut down as needed to let the carb clear the gearbox. I think a 45 degree bend style would probably be useful to most folks with clearance problems.

I just made one for my Whizzer. 1" ID tubing!

Last edited by datz510 : 05-20-2009 at 12:08 AM.
Reply With Quote
  #4 (permalink)  
Old 05-20-2009, 11:26 AM
joe-craft's Avatar
Motorized Bicycle Member
 
Join Date: Aug 2008
Posts: 46
Default Re: Intake Manifold Idea

okay thanks i like ethe first one it would give me alot of clearence that i would need, now to make one!
Reply With Quote
  #5 (permalink)  
Old 05-20-2009, 02:59 PM
Norman's Avatar
LORD VADER Moderator
 
Join Date: Jan 2008
Location: pampa texas
Posts: 2,094
Default Re: Intake Manifold Idea

here is my intake manifolds a couple of pictures short and tight machined end to fit the carb.



the backwards upper end


__________________
norms-iron-works.tripod.com

Last edited by Norman : 05-20-2009 at 03:01 PM.
Reply With Quote
  #6 (permalink)  
Old 05-25-2009, 09:01 AM
Motorized Bicycle Elite Member
 
Join Date: Feb 2009
Location: Syadney,Australia
Posts: 104
Default Re: Intake Manifold Idea

does the length of the intake manifold have an effect upon the performance ?
Reply With Quote
  #7 (permalink)  
Old 05-25-2009, 09:39 PM
Cabinfever1977's Avatar
Motorized Bicycle Elite Member
 
Join Date: Mar 2009
Location: upstate NY
Posts: 1,452
Default Re: Intake Manifold Idea

yes,if its longer or curved it makes it worst.
its better to use a short intake or none at all(they have new carbs that mount to the block and need no intake,but they sell with new gen 3,4,5+ kits only i think).

or if your carb fits but the air filter dont , run a hose from the carb to a pipe or airbox with filter.
i used a boot from a bike shock,it fits tight around carb and taped that to a 6" aluminum pipe and pointed it down and taped to bike,you couldnt hear the engine run at idle like that.
but i bought a cruiser bike and now i have room for everything now.

but anyway joe that is a good idea in your picture and it will work for people with tight spaces.
use a 90% bend and a shorty pipe,u dont want the carb sticking out too much.

Last edited by Cabinfever1977 : 05-25-2009 at 09:50 PM.
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 03:05 PM.


Sponsors
To be a sponsor Contact Us
Donations accepted!

Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.1.0
Motorized Bicycle Engine Kit Forum