Another Airbox thread.... Lockers' edition

I actually have another idea that I'm gonna test out. Built my version of the Airbox today. Cheap as shit to make, uses a Valvoline VA26 (1965-70 Valiant V8 ) air filter with the mesh removed for improved flexibility, sealed top and bottom by 4.5mm neoprene adhesive tape. Since I have alloy laying about at home, that cost me nothing. I also put some 3mm thin neoprene tape below the bottom plate to provide a bit of tension between the throttle bodies as the bellmouths twist down to stop vibration.

Another important factor to me was not to hack anything up since I have no intention of re-ordering oem parts. This is purely experimental cos it'll cost me like $50 to have a dip at it... If it makes extra hp/torque along the entire power curve I'll probably get a second custom map made for this setup.

My version is obviously based on Mars' airbox. I liked his idea for the filter + top cover setup. But instead of removing the entire airbox. I'll leave the bottom half of the airbox in place and the bottom plate of the filter will basically be the same shape as a standard/DNA air filter with holes in it for the carbs and the bellmouths will clamp it down. Yes its extra wieght, No I don't care. I want to be able to change setups fast.

This way the throttle bodies will be protected from heat/shit/whatever and it'll be much simpler the swap between the normal airbox lid for wet weather and this high-flow setup - if it's any good - at the track.

I have a Power commander with custom advanced map to suit my custom pipes and DNA air filter already, but for the purposes of this experiment I'll have the power commander re-mapped at 100% and do back to back runs comparing both setups on the same dyno.

So here's the pics of my version... It would be finished right now but I didn't get long enough bolts tonight to clamp the top lid/air filter in place. So haven't drilled holes for the crankcase vent and temp sensor etc. Excuse the zip ties. They're just there so I can post this sooner. And the pics are average due to lighting but you get the idea.

looking good lockers, I like the idea of still having the throttle bodies protected as well. Do you know if a taller filter would still fit under the tank? just to give a bit more space between the top of the stacks and the airbox lid.

That's looking really good, any idea when you'll be getting it on the dyno?

Hmmmm.... I have the Mars airbox but am awaiting dyno tune before/after results. could the Mars airbox be trimmed/modified to end up where you are at with this version?

Lockers, your version looks good and to my eye will do what Mars box does, one of the things i do like is being able to stick my fist between the T.B's

WTF is gonna get in thare anyhow a bug or two, water never has been on top of my engine,

I have been in some monsoon type rain storms and the top of the engine stays dry.

I am going further the advancement of this design and try to find an alternate way to vent the top front of the tank by relocating the ecu

at the front center of the frame, it is blocking the greatest place in the world to get a blast of fresh air into the box area.

now that my snorkel is out of the way...anyone thought of this concept?..

Will Dyno this friday if I can...



Joely boy - Taller filters are out. I made 3 trips to supercheap auto to measure up the available filters then cut out models from cardboard at home before I bought one. VA26 is 69mm tall. A few mm more that the FRAM one Mar used. The other options which were taller that I wanted to use: VA122 (85mm tall) and VA88 (78mm) just wouldn't fit. And using play-doh to check how much room I have with this setup there is about 1mm clearance to spare above it at the back.



Joe - I don't want to remove the lower part of the airbox cos it's a pain. Which is the the reason I'm taking this approach. Although I still have more alloy so making another bottom plate identical to Mars' would be simple too if I changed my mind.

In regards to the ECU placement etc. I'm pretty sure moving it's not much of an option at all. I've removed it and there is no play in the looms. However maybe you can tilt it back if there's no snorkel there to let air through, not that I think you'll get any airflow at speed since it's still behind the headlight.



On the 05/06 models there is a possibilty for RAM air of a crude kind... especially with this kind of setup....

If you modify the air intakes (46) and (47) so that air flow is permitted under the tank better I reckon you get good flow. I happen to have a spare set of these, haha. So Maybe there's something I will chop actually. See what happens. That would also blow out most of the hot air rising from the engine as it passes under tha tank.

You couldn't do this with the regular airbox, I've looked at it before.