I've been a member of CB5 for just over two years. I lurked for a few months before that. What got me fired up to join was Boris' Airbox Mod post, which has hence become known (along with Chas' version) as the COAM - Colorado Outlaw Airbox Mod. It was a great post, filled with enough details so that I could print it out and follow it myself. I got so excited about this mod that I went out and just did it. It was truly the first thing I ever "fabbed" for a car in my life. And then I registered for CB5 and this was my first post. Unfortunately, both those posts, and a bunch of others, were accidentally deleted by an overzealous (and very apologetic) moderator. But I saved my first post, and here it is for "posterity." I believe the date was June 10, 2002.
The thing I remember most is that nearly everyone missed the dramatic improvement in acceleration, and focused on my overall slow times, ignoring the fact that I was at high altitude. Here was my victorious first post, a four-tenths improvement in 0-60 times for $20 and a few hours fun labor, and a lot of folks were slamming me 'cause my car was so "slow." Well, it ain't slow now! :lol: It also amuses me to see my misconceptions about humidity, and my newbie excitement... and guess what? I made all my mod goals and then some, except I never got a "race" N75 or a chip, and probably never will. Here it is - Thanks Boris, and Thanks CB5!!! It's been a great two years.Rusty said:Thanks, Boris, for a GREAT mod!
Every benefit Boris said about his airbox mod
is true and then some (BTW you need a 1-3/4" bit, not 1-1/4"). Here are 0-60 numbers, from a dead stop at idle, Tip in Auto mode for shifting consistency, hand-timed average of six runs each, throwing out the lowest and the highest:
Before: 11.6 sec (ambient 61 F, 6000 ft., not enough humidity)
After: 11.2 sec (ambient 61 F, 6000 ft., not enough humidity)
The "after" time was the immediate morning after, without time for the ECU to adjust. It felt even stronger later in the day (at 90 F, with an extra passenger!), but no numbers yet. Will follow up as soon as I get a chance.
Other observations: engine no longer poops out in 95 degree+ Albuquerque heat and altitude. And it is SO cool to hear the turbo whine.
I have a '98 1.8T w/Tip, bone stock except for remove snow screen, K&N air filter, Hyperboost DV, 180 degree thermostat & fan switch, and lotsa heat shielding.
Wife says "Oooooo, This is Swweeeeeeet!" She had requested a mod equivalent in "ooomph" to when I put an Iceman intake on her Neon. She got what she wanted. Me, too! Need better brakes now.
Bought the car used with 39K miles in Nov 01
(1) Remove snow screen - was half-clogged with twigs. BIG improvement!
(2) K&N Air Filter - gave expected improvement in throttle response
(3) Hyperboost DV valve - B4 replace, turbo did not kick in until 3000 rpm. BIG improvement, now kicks in about 2000
(4) 180 thermo&fanswitch - peace of mind and prep for power
(5) heat shielding - more peace of mind. Don't feel like I need the heat shield TSB now. (Keep it out of dealer's hands)
(6) Boris/Colorado airbox mod - in addition to above, the turbo feels like it kicks in between 1700-1800 now - where it's supposed to, right?
More to Come Plans: This is the daily driver/family car, so I have to keep it reliable. I get it on weekends - yippee!
(6) Intercooler - more airflow ala Audi S4 vent (thanks, Forum, for ideas!)
(7) Brakes - SS lines and Mintex pads
(8) Crank Pulley - I can sure use an extra 5-10 HP off idle. Especially with wife & two kids aboard.
(9) Springs - Neuspeed SoftSport
(10) Shocks - Bilstein - HD? or Sport? Any comments?
(11) Tires - best I can find in 205/60x15 (stock steel wheels w/hubcaps)
(12) ECS N75 - maybe, depending on long-term feedback from Forums
(13) Tip chip
(14) Chip chip - probably Neuspeed for lower price and lower boost
Hoping to accomplish all of the above by end-of-summer '03, one mod at a time, every couple of months. Still have a driveable 79 Scirocco (263K, original engine, original clutch) that never got modded because I "never had the money". Not gonna let that happen this time.
Again - Boris' Airbox Mod ROCKS - the twin hoses are a great idea, make for easy mounting and routing. Lotsa more fresh outside air = happy engine!
Great Forum - thanks everyone for all the collective Passat tinkering nuttiness. - Rusty