coil222

So I left my 996tt out the other night and it rained. The next day I popped the trunk to change my reverse bulbs over to LEDs and I noticed about 1" of water standing in the EVOMS airbox. I used a towel and sopped up the water and the car started and ran without issue. Is hydro lock a common issue with this mod and these cars or would the air filter need to be mostly submerged before this would really be of any concern. If the car could have sucked up water and failed then is driving these in the rain really dangerous as well?

993GT

mine has a EVOMS airbox, haven't noticed a water build up issue, haven't looked but maybe there a drain hole that is plugged? If no drain-holes, crack out a 1/4" drill bit and make one...
I'll look at mine tomorrow.

"02996ttx50

i used to see water pool in my modded ( ala 997 ) airbox when i ran a bmc and just thought the water might help soak up the extra oil so i didn't make it to my maf

993GT

one thing mine does have is a hydro shield, if that means anything...have been tempted to go back to a stock airbox/filter setup...

coil222

Yes I have the mesh sock thing too.

Kevinmacd

Does the EVOMS air box have drain holes on the bottom?. If not it may be worthwhile to drill a few.

993GT

just looked at mine, appears to have ~1/4 hole in right side of box in the lower 'channel', hard to tell if it came that way or drilled afterwards...

coil222

I think I'll drill one in the 'channel' as well then. Is there anything important directly under the airbox (I'm relatively new to the platform, and didn't install the box myself).

993GT

safer to just pull the whole unit out, only the one bolt(13mm IIRC) and the clamp at the MAF tube.

wross996tt

and after you pull it out ...don't put it back in...LOL

EVOMS

There should be a pair of holes in the drain channel at the back of the bottom of the airbox. If it's been in there a while they may be plugged with dirt, and there are a small number of airboxes out there from a number of years back that did not get the holes added before shipment (for the past several years, we switched to having the holes molded into the airboxs in production). The holes do their job; we've never had any reports of water ingestion issues with these intakes.

As far as removing the intake, there's a decent power loss to be had by going back to stock on a modified car:

coil222

I must have an older one then (bought it used), but a little drill magic in the corner of the channel worked like a charm! Thanks for the support everybody!

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Dock

I bought one right after they came out; it's still in my Turbo. I've never had a single issue with it or my engine.

wross996tt

carry on