ITB's aren't very streetable because of the whole no air filter thing so has anyone ever rigged a filter on one of these before?

 

Im sure you can make a filter box setup for them..

but IMO filters on ITBs are pointless... to much power loss..

just change your oil more frequent an you will be fine

 

BAM!

 

Double bam!

intecracing.com

 

Perfect! Thank you.

 

How much of a loss did you measure?

 

I'd like to see the documented power loss as well.

If you get a set of the K&N individual filters. There is a set with velocity stacks integrated into them. You probably wouldn't even notice a power drop, maybe even a gain, depending on your setup.



If this is a daily driver, I would suggest against running it filter less. Running without a can end up doing more harm than dirtying your oil faster.

 

ha thats pretty badass....i wonder if you would have problems fitting behind the firewall

 

Here is my test fit without filters.



These are a set of 14" ITBs and I have fitted a 5" air filter box on them and still had 1" of clearance. If your running TWM or any other sort runner ITBs. I would imagine that you should have more than enough of room for a set of 4" filters.

 

I think a better idea than having four individual filter elements on each runner would be to fabricate an airbox and feed a cold-air duct, and run a standard K&N cone filter at the end.

Having a filter at the end of your runner reduces the velocity of the air entering, as it blocks any flow in the 90* to 180* range, assuming you have 180* velocity stacks.

 

Yes and you are 100% right but for just farting around town with the ability of removing when you get to the track (cough, street, cough, cough,) Filters are great and cost alot less then that beutiful carbon fiber piece.

Probably sound more beastly.

 

By far a big no, no. Not just dirty oil but messed up rings scratched walls etc...

 

pipercross filters, jenvey.

talk to donf.

 

http://www.itgairfilters.com/index.asp

We use them on our carbed datsuns...

 

true choice has kits aswell

 

LULZ

you should do some research before you talk

 

Clean your engine bay! lol jk.

Looks sweeet!

 

Thanks

Yeah I know...pretty dirty eh!

Hows this for clean

 

put panty hose over them and tripple rubberband

 

Holy **** you motor looks good! Let's see it dropped in.

 

Stay tuned for that on my build thread/blog. Nether the chassis or the engine are finished just yet. I kind of hit an unemployment, now back in school, speed bump. Should be back on track in a few months.

 

We used quad filters on a B18c eg hatch.

 

Why is your alternator pulley so damn big?

 

we ran some foam filters made to go on itb's .. forgot the brand.. lost about 15hp

 

thats not why theyre not that streetable- you ever dealt with daily driving itb's?

looks like the airbox was the best idea- hot air from the header moves underneath the engine and falls up into the low pressure area behind the motor where the intake is. plumb it outside and id bet youd see a nice improvement in power from change in air temp alone.