FF DD Questions
Evolving Member
Joined: Aug 2010
Posts: 232
Likes: 0
From: vancouver
What about the people that has FF kit w "dump tube facing up" on the hood? What if your driving and started to rain? or parked at the mall and when you get out it's raining? I see a few that DD their Evo w dump tube facing up. What do you giys do to prevent the water from coming in?
+1 always wondered about that
Won't matter. The water would evaporate on contact. The wastegate is in direct contact with some of the hottest exhaust gases the motor generates. That is the reason behind having a dump tube. It dumps the 1350 degree exhaust gases away from things that can melt. Any water would evaporate away as soon as it got in there.
Evolved Member
iTrader: (33)
Joined: Jul 2002
Posts: 5,313
Likes: 1
From: Raleigh, Transplanted from Toronto, Canada
What about if your car is parked outside while its raining.
I always wondered if you could have a little lid on it like a smoke stack for a big rig. LOL.
I always wondered if you could have a little lid on it like a smoke stack for a big rig. LOL.
^ this. Im going to have a little flapper on mine since it will be dumping out the hood. as for the front rain issue, like others have said, unless you submerge the filter (which at that point you would have much larger issues) it wouldnt be possible to get enough water in there to do any damage in my opinion. Not that I want to drive through a torrential downpour and try it out though
The fact that Buschur's car is filtered is QUITE relevant. You are talking about a shop car trapping 145+(well over 150 when it was 5 speed) on an HTA86. If his car can run like that with a filter, ANY forward facing setup should be able to. The fact that you are drawing in high pressure, fresh air is the main benefit. Aerodynamics dictate the air coming in through that nostril, not just velocity.
As for rain, raindrops would have one hell of a journey, through a high speed compressor, into a heated charge pipe, through your intercooler, then up the other charge pipe, and then into a hot manifold and motor. Individual droplets aren't an issue. Before meth injection and alcohol injection were prevalent, we used to run water injection for temp cooling. Same thing, just done by the cheap DSMers.
As for rain, raindrops would have one hell of a journey, through a high speed compressor, into a heated charge pipe, through your intercooler, then up the other charge pipe, and then into a hot manifold and motor. Individual droplets aren't an issue. Before meth injection and alcohol injection were prevalent, we used to run water injection for temp cooling. Same thing, just done by the cheap DSMers.
^ this. Im going to have a little flapper on mine since it will be dumping out the hood. as for the front rain issue, like others have said, unless you submerge the filter (which at that point you would have much larger issues) it wouldnt be possible to get enough water in there to do any damage in my opinion. Not that I want to drive through a torrential downpour and try it out though
Evolved Member
Joined: Feb 2010
Posts: 1,630
Likes: 4
From: Columbia, MD
All for...what advantage? At least with a FF kit, there is a definite advantage to the air temperature and density. I wouldn't do it for a road racing car, as I get all kinds of random crap kicked up in front of the car, but for a street sweeper or drag car it makes sense.
Make a removable cover. Took me 15 minutes to make using a piece of ABS plastic, rubber washer, flat head bolt & wing nut... Problem solved. If its a nice day out or you're at the track, take it off.
Thanks!
Fod
Forigen Object Damage could result for FF kits. Big Bugs, tiny rocks that chip your bumper ect.... I live in utah and the freeways here are known for breaking windshields. so even for ones with a filter it "COULD" still happen.
i love the FF kits but for daily driving in my area its a gamble. if i ever go full race i will definatly have a FF kit
Just my 2 cents
i love the FF kits but for daily driving in my area its a gamble. if i ever go full race i will definatly have a FF kit
Just my 2 cents
Evolved Member
iTrader: (33)
Joined: Jul 2002
Posts: 5,313
Likes: 1
From: Raleigh, Transplanted from Toronto, Canada
I drove for a year with a FF setup and had no issues. When my next Evo is finished being put together it will have the same setup and I expect no issues there either,