Tag Archives: k&n air filter

MotoAmerica Superbikes at NJMP Championship of New Jersey the debrief

It was a gorgeous weekend at NJMP Thunderbolt to watch some bikes racing. But the freezing cold overnight in my tent camping at the track kicked my ass. Much like Mosport in Canada last weekend my foot began to hurt a ton after freezing my toes off and I had a hard time walking on Friday… which sucked. It was so cold Thursday night I went out and bought another sleeping bag which improved my comfort the next two nights but not enough to make the arthritis subside and I limped my way through the weekend.

I didn’t let the injury dampen my weekend and soldiered on. The station assignments were fantastic this year. Like last year I worked Turn 12 on Friday and Turn 7 on Saturday and Sunday. It was fantastic! Probably as good as it gets really.

Turn 12

Turn 7

Looking towards Turn 6, where we had the first red flag of the weekend with a high side bike on the opening laps of the first race.

One of my British marshal friends was surprised I’m actually working an event in my home state… voila! It’s true.

NJMP got a new toy to add to the fleet of their Subaru’s… this nice looking (and sounding) Audi S3 safety car.

If you’re a bike fan, there was a lot to look at this weekend. And every time I work a bike event I really am tempted to go out and buy a bike of my own. Of course the sport bike that I want would require me to lose my gut to at least look normal on it.

Not much was out yet when I arrived on Thursday afternoon.

And a lot of familiar bikes were on display, but I was a bit disappointed to find out there is no visual spotter guide to help marshals distinguish the bikes. Or to help the fans for that matter.

Arriving on Thursday my goal was to go to the training/refresh meeting, which was neat. Dave does a great job. I was happy to see Dave using a pic of me Blue flagging (an IMSA race at Mosport a few years back) in his training material. I was surprised that there was only a handful of us in attendance though.

As cold as it was overnight, during the day it was super comfortable and warm weather. So much so I went out for ice cream one night.

It was delicious.

Big thanks to Brittany at NJMP for making this event possible for me, and I’m very much looking forward to another weekend down there soon for the NASCAR K&N East series. Interestingly enough the MotoAmerica Championship of New Jersey was presented by K&N also… whose filters I use on my marshaling rig both oil and air.

It’s going to be awesome…

Mazda MX-5: K&N Air Filter Recharge Kit #99-5000

Took advantage of the beautiful weather this winter day to do some maintenance on the Miata. Today’s project was to clean and recharge my K&N air filter. I bought the K&N #99-5000 recharge kit some time ago with a nice discount from Advance Auto Parts, but didn’t want to do the recharge too soon. Some said it shouldn’t be done before 25k miles others 50k miles. But since I don’t drive my Miata nearly as much as other people with K&N filters on their daily cars (anotherwords that 25k or 50k miles would take me forever) I decided to do the cleaning today.

I’ll say upfront that I didn’t put the K&N panel filter back into the air box after cleaning it, instead I popped the WIX paper air filter back in that only has about 5k miles on it, and left the K&N in the box so that the oil nicely absorbs into the cotton fabric of the filter.

I also took a look at my throttle body and it doesn’t look too oiled up. So that’s a good think, the biggest complaint about K&N air filters is that the oil goes all over the place causing problems. It doesn’t.

This job is fairly simple, though I decided to unscrew a few things to get to the filter easier.

People say that if you don’t take the car offroading than it’s OK to keep the filter in for 25k to 50k miles without cleaning. I obviously never went offroading in my car. But looking at this air box shot and under the hood in general you can clearly see a ton of grime that made it’s way into the engine compartment and that fine grit definitely finds it’s way into the air box.

Interestingly enough there were two large leafs inside the air box.

Doesn’t look too bad, you can see a bit of oily residue on the edge.

The most visible stuff on the dirty side of the filter were dead bugs

The 5k mile WIX air filter went back in while I was doing the cleaning, and it will likely stay in the car for a while, I’ll explain a bit later on as to why…

I followed the cleaning instructions. First I used a soft tip paint brush to get some of the dust and larger debris off the filter before spraying it with the cleaning solution. Left it outside for ten minutes and went in the basement to rinse it off. I used a bucket full of water to dip the filter in first, and then rinsed it under water. But looking up to the light it was clear there were tiny bits of dried lefts still stuck to the metal mesh.

I did not want to leave those little debris in there, so I got a soft plastic stick and gently picked those debris out of there, without poking through or anything just gently brushed up the debris out of the mesh and cleaned it against a rag. Was very happy I did that because I didn’t see any of the YouTube tutorials talking about this.

The tutorials suggested to let the filter dry outside for about an hour. But since it was still a cold day and getting colder towards the evening I decided to leave it outside for a few hours until it was dry.

Final step was straightforward but a bit worrisome for me. How much oil do you actually spray without over spraying? It’s definitely not good practice to put too much oil because that oil would end up in the MAF and throttle body. Which isn’t good… So I gave it sufficient (I think) but not overwhelming spray on each side of the filter. Then put it in the box and will let it sit for a while so it soaks in well before I put the filter back into the air box. I figured this is how the filter was when it was sold to me, who knows how long it sat on the shelf before I bought it, so I’ll leave it out of the car for a while, until I use up my WIX filter and throw it out when I put the K&N back in the car… (probably after the Florida road trip).

Easy peasy!