Perrin Foam Panel Filter
 

I put one of these in soon after I picked up the car and it was difficult to tell if it gained any power because I was taking it easy.
What I am impressed with is the filtration. It's been summer here so there's dust around and being WA it's got a fair amount of iron oxide in it which sounds bad for the bores if it gets through.
I pulled the MAF sensor out recently to check it was clean and oil free, I had a look inside the inlet after the filter too.
The MAF sensor was spotless but I gave it a rinse in electrical cleaner while it was out. The inlet was also spotless and I even grabbed some white tissues to wipe the inside with, they were still white after over 4,000km.

Before I bought it I watched the video where they pour dirt over the various filters in the test machine and of course, the Perrin is the only one that stops all the dirt, even when they dump extra in. I was sceptical to say the least.

It seems it does filter extremely well and since my average fuel consumption is 10% below the official figures it must be flowing air ok too.

I would be interested if anyone has done a dyno comparison with this filter but for a drop in seems to offer first class filtration.

https://www.perrinperformance.com/br...s-panel-filter

Do u have a link for the test video?

Did a search and couldn't find anything.

Thanks

This may sound stupid but which way does the filter face? took mine out today to clean and it was spotless. went to reinstall n was like o @#!t.

install it towards the bumper

Still looking for that test video with the vacuum machine. They might have deleted it but I haven't given up yet.

Yes, install with the highest side out towards the front. That's the big area to filter the most air if that makes sense. I panicked with mine the first time too.

so the perrin logo faces the nose of the car and not the driver?

Yes!

Perrin already did do a dyno... Your not going to find anyone going to dyno just a filter it self unless its a shop or vendor here promoting the product. Instead of asking other people do it why not do it your self. It costs 75-100 bucks to dyno 3 times at most places. The filter cost less than that which is unlikely anyone will be doing that. Not likely anyone is going to do that unless they have a hook up and IMO just a waste of time to see if it adds 3 ~ whp...

Perrin alreayd gave you the dyno's in there blog theres no reason to think they are skewing there numbers as they havent done that with any of their products.

eh shit lol

anyone know what sort of oil and cleaner does it use? K&N stuff ok?

thanks

I read somewhere that the K and N cleaner and possibly the oil is bad news for the foam filters. The supplier I bought mine off said it was ok to use it but when I checked with Perrin they said no way.
That might explain reports of some foam filters getting hard and breaking up while others go on indefinitely?

It's easy to get the right cleaner and oil. Perrin told me to go to any motorcycle shop because so many bikes use foam filters and they were right, good prices too.

I looked everywhere for that filtration test showing the Perrin stopping everything and the OEM and cotton type letting heaps through but it seems to have gone?

thanks for your reply and noted with the above.

I recently cleaned and re-oiled my perrin filter since it was getting pretty black in the center. I picked up both cleaner and foam filter oil at a Motorcycle/ATV shop. The foam filter oil I bought has blue coloring to ensure you apply it evenly. Unfortunately Perrin's filter is mostly black except the white lettering. The Perrin logo is now blue :thumbup:.

When installing the perrin filter was it a tighter fit then the oem filter.

You might have seen the true flow video, it should be on You Tube.

For sure clean our filters with foam filter cleaner, we use the Uni Filter cleaner, and it works great!

Normally they only need to be cleaned every 7-10,000 miles or so.

It may seem like a tighter fit if it is not sitting in the air box correctly and the bottom hinges are not lined up. The best way to ensure that it is seated correctly, is to simply remove the air box from the vehicle and install the filter and then reinstall the air box.

I bought Mo-Tech foam filter cleaner that's 100% v/v liquid hydro carbons and Castrol foam air filter oil. Hopefully they're up to the job too?

Thanks. I found one.

[ame="http://www.youtube.com/watch?v=xvtDj37Dp-0"]True Flow Filter Comparison Video - YouTube[/ame]

Yes, that will do the job just fine. Any foam filter cleaner and oil will do the task!

Not meaning to thread jack or anything but is the HKS drop in the same foam/build pretty much as the perrin?

Look up ft86 speed factories drop in filter dyno test.


Found it for ya!

Did you find much oil in the intake or on the MAF? I have a perrin filter arriving soon so i was wondering if i will have to clean it out from time to time.

There was no oil in the intake. It was clean and dry.
The filter was certainly oiled when I got it because I kept it in the spare room with the Nameless exhaust and you could smell the oil, even through the plastic bag it was in.
That shows how important it is to get it right re-oiling because done right it filters perfectly without releasing any oil.

Just installed mine. Taking out the airbox and then replacing it is DEFINITELY the way to go with this. Three bolts to get it out and way easier than trying to shove it in through the narrow opening with it in.

How does it feel? Pulls harder? Did you reset the compbox? Via unplugging the negative batt terminal?

Give me a couple days and I'll let you know. Reset everything but didn't get a chance to take it out on the road today.

looks like i'll have to go with perrin.

I reset my ECU a month ago, just to see what would happen.
I regretted doing it as soon as I drove it after letting it idle for the prescribed time. It was flat and the throttle pedal delay was back almost as bad as when it was first learning out of the showroom.
There was a noticeable loss of power at the top end but it's all come good after taking some time to optimise itself again.
It wasn't in my head. I was expecting a power gain and the fact that it lost power stood out like dog's balls and I was instantly depressed in case it stayed that way.
Luckily it didn't!

How that relates to resetting the ECU on the dyno you have to wonder?

Thanks for the tip. Now I am hesitating on doing the ecu reset...but a lot of people do it before doing dynO runs....hmmmmm

Could I suggest that you try it with the new filter for a few days, as it is and then reset the ECU?

Please let us know your thoughts if you you do it that way to see if it's similar to my experience.

If you aren't fitting a filter, just looking for a gain, then I would appreciate hearing how it goes if you reset it. They mentioned the ECU takes up to 1000km to do a complete learn and that was my solice after I did it.

Got a chance to drive with mine today after resetting the ECU. There is a definite loss in power/torque initially. There's enough first-hand accounts on here that this goes away that I'm not worried.

That's reassuring you thought the same as me after resetting the ECU.
It felt flat and gradually improved again. I hated the throttle delay back in the pedal.
Sweet as now though. I just have the Perrin filter and Nameless 2.5" axle back fitted but to me it feels like having a race car that's legal on the road.

The other benefit of the Perrin is they claim and it makes sense, that because the filtration area is so much larger it maintains the flow whereas the thin cotton and oil type block the flow as they get dirty.