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SHEP400EX
05-13-2007, 09:31 PM
hey guys im trying to tune my quad after i had it rebuilt. i took off my air box lid and now i want to run a foam filter for a lid. anybody have any tricks on what they do and what works? i also heard dirtworks make a special cover that allows the water to go away from the filter but still give it alot more breathing room than a closed lid. i am running a 12:1 cp piston and a LRD slip on. i was using a leo vince but i need to get it fixed, but i will use the one that works the best.

JAKE YATES
05-14-2007, 11:50 AM
NO LID!!!!!!!!!!!

royh
05-14-2007, 12:59 PM
Find a HRC lid from an 04 that has the mud flap to cover the filter. Lets it breath but still offers some protection.

jlm996s
05-14-2007, 01:53 PM
I cut my lid like the HRC lid, then bought an Outwear lid cover to put over it. Seems to work pretty well.

MossboysRacing
05-14-2007, 07:54 PM
this is what i use. works good. i didnt have to rejet when i put my hrc kit in.

http://www.ehsracing.com/products/trx450_airbox_EHS.htm

MO-EX-RIDER
05-14-2007, 08:14 PM
i cut a 3x2" hole in my lid and instead of an outerware like the ehs i use the ol' ladys spare panty hose(sprayed w/ waterproof repellent for tents).......but my twin air is always covered with an outerware too:huh works great and saves a buck or three!

SHEP400EX
05-14-2007, 08:39 PM
thanks for the help. i am going to go riding this weekend and do some testing on it.

markk
05-15-2007, 04:43 PM
I cut a bunch of little square holes in my lid, and purchased an outerwear, and had a guy stitch it to some velcro and i glued the other velcro onto my lid, and it worked great for about 2.5 years, then i just replaced it cuz it started to rip! ill try and get a pic for u!

snacob14
05-15-2007, 10:16 PM
Where you goin riding this weekend. I"ll be out at st. joe around 10am saturday, i'll be there all day i'm sure. I'll be in a silver jeep liberty w/a 04 450. also will be being followed by a couple of crf150's. my names jake, I usually park up front by the rails.

SHEP400EX
05-17-2007, 09:56 PM
i am going down by springfield and then to willows springs to DIRTWORKS BIKE SHOP. maybe another time we can meet up.

markk
05-18-2007, 04:50 PM
Originally posted by MossboysRacing
this is what i use. works good. i didnt have to rejet when i put my hrc kit in.

http://www.ehsracing.com/products/trx450_airbox_EHS.htm



I know when i installed 2 HRC kits in 04 trx450r and we installed the intire kit we where suposed to change the jetting to i beleive a 180 main. from somthing like a 140 or a jet right in that area.

oldracer
05-18-2007, 04:59 PM
I sold my lid and got an extra filter. i change it every ride.
but even mud races have not been an issue. just a lil creative duct tape from the back of the air box to the rear fender were the tool kit should go.

m.h.s.c.#527
05-20-2007, 11:17 AM
dirtworks took a holesaw and put holes in my lid not directly above the filter but to the side and behind it no problems

SHEP400EX
05-22-2007, 06:08 PM
DIRTWORKS got me fixed up with their modified stock lid with a metal mud /water guard. it works well so far. going to test out some more this weekend in the the creeks. thanks for all your help.
shep