Intake Manifold Idea

joe-craft · #1 05-19-2009, 08:17 PM

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.

eisle89 · #2 05-19-2009, 11:01 PM

That is a good idea, here's mine

datz510 · #3 05-19-2009, 11:06 PM

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!

joe-craft · #4 05-20-2009, 10:26 AM

okay thanks i like ethe first one it would give me alot of clearence that i would need, now to make one!

**Norman** · #5 05-20-2009, 01:59 PM

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

the backwards upper end

impression · #6 05-25-2009, 08:01 AM

does the length of the intake manifold have an effect upon the performance ?

Cabinfever1977 · #7 05-25-2009, 08:39 PM

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.