+1 with this guy. the guys at the shop i go to have also done the comparatives and no advantage in chucking the lid. they cut the front off the top where the snorkel used to be.....looks sort of like a reverse cowl scoop.( ram air ) works great and still got my iat sensor intact.if youre interested i'll post up some pics.Take a 2" hole saw and drill a bunch of holes in the top and leave it and the sensor right where Harley intended it.
We did comparative dyno runs, drilled, semi-topless, topless and no real advantage or difference in the fuel/air ratio going completely topless. The cylinders can only hold so much air!
What ever you do, make sure you get it tuned properly.
Nice back-up. I'm actually surprised the statement didn't start a flurry.+1 with this guy. the guys at the shop i go to have also done the comparatives and no advantage in chucking the lid. they cut the front off the top where the snorkel used to be.....looks sort of like a reverse cowl scoop.( ram air ) works great and still got my iat sensor intact.if youre interested i'll post up some pics.
:moped:Does anyone make a filtered top instead of the hard plastic that is used to hold the air filter in place or is the top shaped like that for clearance of the velocity stacks?.
Sorry if its a dumb question but,I have not yet had the tank or air box top off at all yet......Andy
P.S.-Thank You AOW thats a great detailed slide of the airbox mod that gentleman did.
like this ?:moped:
No dumb questions here...don't know why you would want to change the top for...extra air???
I read somewhere on one of these forums that if you cut the front of the lid off the air box, you know the round tube that pulls the fresh air into the air box as well as some of the front part it would work even better because it would work just like a hornet scoop, suckin in fresh clean air, also you would not have to relocate the air temp censor at the front of the lid
When you remove the whole lid you suck hot, dirty air from the engine. … you will need to relocate the air temp censor at the front of the lid to the lid of the air filter.
After this and any mod get your bikr tuned.
As with any performance application the more you twist them the more they need air.We run a top on both my sprint car team and 10.5 tire car that allows for the air to also be drawn in the top of the fuel injection or carb along with the side.It would be a great help on the V's if one was available,especially for those who live on the edge above 8k.don't know why you would want to change the top for...extra air???
Just do as the pic shows:chainsaw:. Dont leave or throw away this censor it is needed for you bike to run properly it reads the air temp of the air entering the manafold and adjusts the fuel ratio...or something like that. Besides if you remove the lid all together when you open up the throdle:moped: you will here a very loud sucking thumping noise that is if you dont have loud pipes and then you cant hear anything at all....Okay, I'm going "topless" but noticed a plug in the airbox lid. First of all, what is it and second do I unplug it or actually remove the whole thing from the lid and secure it to the airbox?