I am a Wolverine owner and I have read of other Wolverine owners talking about Drilled Airbox Lids. I'd like to know what this is and is it something worth doing to mine.

 

Drilling holes in the air box lid is an old performance trick. This is just a way to get more air to the engine. Some people remove their air box lids completely. This will not work for the wolverine because the lid holds the filter in place. You can drill a few hole in the lid though. The most hp will be attained if you drill holes and then re-jet the carb accordingly.

More air will need more fuel to go with it. This is where jetting comes in. Now if you have a fuel injected engine, the computer will automatically add more fuel when it detects a lean condition. Unfortunately most quads still use carbs.

Hope this helps


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im sure pro design makes a billet adaptor with a K&N so u can rid the air box lid..if not and u decide to drill u can . if u do u might look into the white brothers filtered air box vents. they cover up 1inch holes with filtered vents.

 

Pro design and noss machine make the adapter plate kits for the wolvy, i suggest picking one up just to make sure your not getting dirt into your motor.

 

Although I do recommend the Pro Flow adaptor for a better air filter seal, there is an alternative to drilling holes. The EHS Racing air box adaptor bolts an outerwear to your airbox so that you can keep your stock lid. You simply cut out your lid to fit the EHS Racing cover. This way, you get the same air flow as not having a lid while still having the protection from sand and debris in your airbox. We run one on all our bikes and that included a wolverine up until last September. Check it out. I think it may be just what you're looking for.

~HoundDog

 

does the same idea apply to Grizzly's?

 

Absolutely. We put the "universal" lid on our two grizzlies and it made a world of difference. In fact, for those of you who are skiddish of cutting up your old lid, you can order a whole new lid from EHS with the prefilter already installed.

~HoundDog

 

i personnally dont like the EHS cover..first u still have the snorkel where dirt and whatever can get into and it cost $50-$70. u can also drill 3-4 holes and use the white brothers vent covers which r $5 and give u pretty much the same surface area where air can get in. But the best bet is get the pro design adaptor and get rid of the air box lid completely and get the outerwear cover over the box...see my gallery for pics

 

We did some experimenting on a bombardier with drilling 3/4" holes and using the white bros filter inserts. We drilled 8 holes (that's all we could get on that small an airbox) and still weren't getting enough air to use the same jetting that worked for the EHS lid. As far as the snorkel goes, its usually in a fairly protected place (like under the gas tank cowling) where it won't pick up as much dust. Certainly the easy alternative here is simply removing the lid and using a better filter mount. However, for those who feel the conditions they ride in are too dusty, too wet, or are simply worried about further protecting their air filter, the EHS lid is a great alternative and well worth the cost. Each to his own.

~HoundDog