Air filter - tight fit - looking for recommendations

[Jamie P]

I don't like the looks of the stock Predator 212 air filter. My brother gave me an air filter kit, but it doesn't quite fit the space I have available. I've searched around, but it's really hard to find what I need based only on internet photos.

You'll see in the photo how I have an obstruction where the air filter needs to go. I either need to find a short, wide air filter or one that mounts at a sharper angle, or something I'm not thinking of because I'm not sure what options exist.

The inlet on the red kit is 62mm, but I don't have to stick with it. I can just give it back to my brother and source a different one.

Any thoughts?

 

[Denny]

Keep the original factory filter. It works the best. Give your brother back the filter and thank him for thinking of you.

 

[Hellion]

It’s a big problem for some builds, no doubt about it.
A 90 or 45 degree elbow intake is an option, problem is it may have to be custom fab:

requested pic of mikunui on 212 preditor mikecoinc

this is a picture of how I mounted my mikuni on my 212 preditor using a copper sweat solder 90 and hose with clamps. this gets it out of the way also no air leaks. not pretty but works good. goes without saying use good tight fitting hose and hose clamps.

www.diygokarts.com

“Bend” the airflow too much and you disrupt the A/F charge and may have running issues or need a re-jet.

Denny beat me to it. I do wish the stock air filter assembly looked more 1970’s or like a tin cup with a wingnut on top.

 

[Hellion]

What’s the project/vehicle that has such an obstruction? Almost looks like an engine bay

 

[Jamie P]

Hellion, it's my mini-truck. This angle shows it best. I didn't plan on enough space for the air filter to not conflict with the bedside.

 

[Whitetrashrocker]

How about an elbow like Mike did on his.

Thread 'requested pic of mikunui on 212 preditor mikecoinc' https://www.diygokarts.com/communit...c-of-mikunui-on-212-preditor-mikecoinc.53088/

 

[Jamie P]

How about an elbow like Mike did on his.

Thread 'requested pic of mikunui on 212 preditor mikecoinc' https://www.diygokarts.com/communit...c-of-mikunui-on-212-preditor-mikecoinc.53088/

I'm going to explore that idea. Thanks

 

[Edwin Spangler]

PVC?

 

[panchothedog]

Where are you going to be using it? Your build is really neat. I have followed it on your other thread. If it's only limited short time use on asphalt, you could just run it like it is.

 

[Hellion]

PVC?

There you go. White PVC, black ABS, any number of plumbing pieces would work. You could rig up a low profile adapter made from a PVC or ABS end cap to give you more room and then add a 3"-4" tall dual layer UNI or generic filter. These have a foam core and another layer of foam, a pre-filter, that you can add oil to to capture dirt.

predator 212 air filter adapter

Can I make one with a pvc end cap? has anyone made one if so can you post pics to give me an idea?

www.diygokarts.com

home made air filter adapter

I made an adapter to put a free flow air filter on my gx160. I machined it out of Mylar (hard plastic). The OD is 2&3/8" to put popular air filter, and the ID fits the large push on filters. I modified a V/C breather to fit this, will get correct filter later. With this, I can modify it to put...

www.diygokarts.com

Cutting off the top of the factory air cleaner assembly seems to be popular:

Air Filter mod.

Feeling a little skeptical tonight. Lol tough day at work. I've read, and you tubed a bit about stock air filter setups being restrictive. I've always doubted that these clone engines have been engineered to allow just the precise amount of air flow. To suggest that they are on the verge of...

www.diygokarts.com

 

[Jamie P]

Where are you going to be using it? Your build is really neat. I have followed it on your other thread. If it's only limited short time use on asphalt, you could just run it like it is.

It will have an easy life I'm sure - pretty much just cruising easy on pavement. However, there is always a chance it could suck in dust, and I can't leave it open or the mud wasps will find the hole in the spring, and I'll have a mess. Those little guys plug every hole they can find.

 

[Jamie P]

There you go. White PVC, black ABS, any number of plumbing pieces would work. You could rig up a low profile adapter made from a PVC or ABS end cap to give you more room and then add a 3"-4" tall dual layer UNI or generic filter. These have a foam core and another layer of foam, a pre-filter, that you can add oil to to capture dirt.

View attachment 159866

predator 212 air filter adapter

Can I make one with a pvc end cap? has anyone made one if so can you post pics to give me an idea?

www.diygokarts.com

home made air filter adapter

I made an adapter to put a free flow air filter on my gx160. I machined it out of Mylar (hard plastic). The OD is 2&3/8" to put popular air filter, and the ID fits the large push on filters. I modified a V/C breather to fit this, will get correct filter later. With this, I can modify it to put...

www.diygokarts.com

Cutting off the top of the factory air cleaner assembly seems to be popular:

Air Filter mod.

Feeling a little skeptical tonight. Lol tough day at work. I've read, and you tubed a bit about stock air filter setups being restrictive. I've always doubted that these clone engines have been engineered to allow just the precise amount of air flow. To suggest that they are on the verge of...

www.diygokarts.com

Thanks Hellion. Interesting ideas. You've got me thinking...

 

[Jamie P]

You guys are right. 2" PVC is a very good fit. I'm not sure in the end if it will look any better than the stock air filter, so to avoid air/fuel issues I may just stick with the stock filter like Denny recommended.

 

[Hellion]

I may just stick with the stock filter like Denny recommended.

Which Rotaderp is it, a Hemi or non-Hemi? The Hemis have a deluxe air filter assembly with the usual paper accordion innard surrounded by an expanded steel mesh “can” and a foam pre-filter wrapped around the outside. The non-Hemis have about a 1” thick piece of foam… which is probably entirely adequate. Don’t know if the differences still exist, you’d probably have to own both engine types to tell.

Just saying if it’s a hemi, you could probably keep the deluxe assembly but remove the ugly black filter cover. Then, add a red or black pre-filter to top off the look (keeping your color scheme).

This is a Powerfist engine (Canada only) and not a Greyhound like I originally thought, but anyway, the concept is the same:

Air Filter mod.

Feeling a little skeptical tonight. Lol tough day at work. I've read, and you tubed a bit about stock air filter setups being restrictive. I've always doubted that these clone engines have been engineered to allow just the precise amount of air flow. To suggest that they are on the verge of...

www.diygokarts.com