Rocky Mountain Club B5

Discussion Forums => Maintenance => Topic started by: jayryan on June 06, 2005, 05:28:28 AM

Title: Er...annoying observation: my car feels very slow.
Post by: jayryan on June 06, 2005, 05:28:28 AM
Over the weekend, I replaced my fuel filter, cleaned my air filter and started on my engine cover and winglet repaint.

As I was waiting for my K&N to dry (overnight :wink: ), I decided to remove the little trap door at the bottom of the airbox. Now, whether or not this plays a roll in my issue I know not. I'm going to to put it back in and see though.

The observation is that my car is sllllloooowww now or at least feeling so. Boost is building, but it's slow. My get up and go slow feels like it takes forever. Throttle response also seems very weak. Everything seems to run in slow motion. My airbox doesn't make that cool screaming/sucking sound anymore. I'm a little annoyed to say the least.

My air filter hadn't been cleaned since last fall and my fuel filter had never been replaced. I guess I was thinking that both of these would actually do the engine good which makes me wonder if that little trap door is a little more important that I was thinking. Has anyone else had this problem?
Title: Er...annoying observation: my car feels very slow.
Post by: aowhaus on June 06, 2005, 07:56:52 AM
That trap door is an odd piece.  It's spring loaded but it seems like it would take a sucking power of a vacuum to open it up, which I doubt the engine would ever do.  I think it's more of an emergency air intake if the other one fails, or to let warm air in cold conditions.
I wouldn't want to remove the trap door since you will be letting hot air from the engine bay into the airbox.

In addition to adding a K&N filter, I removed the airbox pre-filter (the fine fabric screen) and also I cut a 3" hole at the bottom corner of the airbox which I ran a 3" fine corregated flexible hose to the lower valance opening (next to the foglight).  That provides lots of cool exterior air in a more efficient direct path that flows straight to the face of the air filter -- it's also less than half an arm's length in air travel compared to more than an arm's length with a few kinks and turns from the top of the grill to the far edge of the airbox of the stock intake.
I notice there is more grunt and the engine runs a little more freely with my setup.

Cleaning your K&N periodically is a good idea to maintain optimal airflow.
Title: Er...annoying observation: my car feels very slow.
Post by: Spicoli on June 06, 2005, 08:08:14 AM
I always felt like the trap door actually stopped air from going into the engine bay creating pressure from the incoming air and forcing it up through the filter.  If I remember the stock airbox correctly.
Title: Er...annoying observation: my car feels very slow.
Post by: jayryan on June 06, 2005, 08:11:28 AM
I've already done the COAM mod. I haven't removed the screen. I'll probably put the trap door back in and remove the screen and see how it runs.
That little trap door has some very small openings in it already. Jack, if you're insight is correct and my suspicions are accurate then that's what's causing my car to to get up slowly.
Title: Er...annoying observation: my car feels very slow.
Post by: hotani on June 06, 2005, 08:46:32 AM
1- Release emergency brake, or as Mitch Hedberg would call it: "the make-the-car-smell-bad handle."

j/k. I have nothing constructive to add to this discussion.

[ducks out]
Title: Er...annoying observation: my car feels very slow.
Post by: jayryan on June 06, 2005, 09:19:15 AM
Quote from: "hotani"
1- Release emergency brake, or as Mitch Hedberg would call it: "the make-the-car-smell-bad handle."

j/k. I have nothing constructive to add to this discussion.

[ducks out]


Believe me...it felt so slow that I checked it...twice 8O

You did make me laugh :lol:
Title: Er...annoying observation: my car feels very slow.
Post by: scott on June 06, 2005, 10:47:21 AM
I was gonna say press the skinny pedal on the right!
Title: Er...annoying observation: my car feels very slow.
Post by: evil_O on June 06, 2005, 10:54:45 AM
Ummm.... you did start the car right JR?
Title: Er...annoying observation: my car feels very slow.
Post by: jayryan on June 06, 2005, 12:33:58 PM
You guys are dumb :lol:
Title: Er...annoying observation: my car feels very slow.
Post by: scott on June 06, 2005, 05:10:45 PM
Quote from: "jayryan"
You guys are dumb :lol:


we may be dumb, but we have cars faster than yours!   :twisted:  :twisted:  :twisted:
Title: Er...annoying observation: my car feels very slow.
Post by: Eric18T on June 06, 2005, 05:25:47 PM
Quote from: "scott"
Quote from: "jayryan"
You guys are dumb :lol:


we may be dumb, but we have cars faster than yours!   :twisted:  :twisted:  :twisted:


i don't know about that.. My car is pretty slow. I think i probably have the slowest car here.  :(
Title: Er...annoying observation: my car feels very slow.
Post by: evil_O on June 06, 2005, 05:33:42 PM
Well my GTI was a dump load faster than the Passat 1.8T 4HOG.  But I like the room of it ... and it is getting chipped... uh.. I think.
Title: Er...annoying observation: my car feels very slow.
Post by: scott on June 06, 2005, 07:04:30 PM
all people with slow cars stand over here   <--------

all people with fast cars go over there  -------->

-------------> those are the cool people
<------------ those are the people who cannot catch the cool people
Title: Er...annoying observation: my car feels very slow.
Post by: hotani on June 06, 2005, 07:30:07 PM
:( I wanna be cool. :(

boohoo.
Title: Er...annoying observation: my car feels very slow.
Post by: BHase on June 06, 2005, 07:30:59 PM
Join me on the slow side, and together we will rule the galaxy...er...nevermind.

Ben
Title: Er...annoying observation: my car feels very slow.
Post by: jayryan on June 07, 2005, 04:58:31 AM
It seems to be running alot better this morning...probably an adaptation thing.
Oh uh, yeah and thanks for making me feel alot better about car...yeah. Good job. Way to go guys. It's so nice to have a supportive community of car enthusiasts...yeah :?  :roll:
Title: Er...annoying observation: my car feels very slow.
Post by: Spicoli on June 07, 2005, 10:25:36 AM
JR, the car is all good?  I have been watching this thread curious on what you find.  

I hope it isn't you adapting and getting used the the slower car :lol:
Title: Er...annoying observation: my car feels very slow.
Post by: evil_O on June 07, 2005, 10:33:42 AM
Quote from: "Spicoli"
JR, the car is all good?  I have been watching this thread curious on what you find.  

I hope it isn't you adapting and getting used the the slower car :lol:


-Too funny.
Title: Er...annoying observation: my car feels very slow.
Post by: jayryan on June 07, 2005, 11:28:34 AM
Mmm...couple more mods and I'll be on the dyno to see how slow my car really is. I don't think it'll be done by DATR but we can always hope :roll:
Title: Er...annoying observation: my car feels very slow.
Post by: evil_O on June 07, 2005, 11:32:37 AM
Quote from: "jayryan"
Mmm...couple more mods and I'll be on the dyno to see how slow my car really is. I don't think it'll be done by DATR but we can always hope :roll:


Where you gonna get it dynoed?  Parker?
Title: Er...annoying observation: my car feels very slow.
Post by: jayryan on June 07, 2005, 11:33:55 AM
Yup. I have two things to finish up.
Title: Er...annoying observation: my car feels very slow.
Post by: evil_O on June 07, 2005, 11:57:15 AM
Quote from: "jayryan"
Yup. I have two things to finish up.


Let me know when you are heading down.
Title: Er...annoying observation: my car feels very slow.
Post by: Eric18T on June 07, 2005, 06:25:50 PM
ok.  i will stand in the slow line. I am fine with that.

I am glad to hear your car is better today. I may just have needed to adapt, or maybe it was just pissed off at you the other day. Who knows. These things are more finicky than my dog.