My Current Mods
- Shine "Lite" hybrid suspension. Bilstein Sport dampers all
the way around. Shine Racing front
springs (200lbs) from the 4cyl GTI and stock rear springs (should really be using Corrado
rear springs to match resonance frequencies but my setup works fine). Shine's
big ass rear sway bar. The "Lite" approach was to deal
with Colorado's nasty roads (rated 2nd worst in the country), but I generally have no
problem running away from *anyone* in the mountains, and it's not half bad at the
Auto-X. It's very flat until the rear inside tire lifts and then the car has
very neutral handling and oversteer can be dialed in with rear tire
- Turn2 lower engine mount. Controls engine lurchiness in low
gears and makes for smoother shifts.
- Jason Whipple upper rear stress bar. Kills a lot of body squeaks and
makes the rear end stiffer and more predictable.
- Gary Peloquin's torsen limited
slip differential. It's a good redesign of the Quaife.
Unbelievable mod. Every front wheel drive car should have one. It allows
power to be put down evenly in a straight line, eliminating torque steer, and uneven wheel
spin at the drags. It also allows for the car to pull hard around sharp corners
without losing traction on the inside. Need to turn tighter when the
tires are spinning.. turn tighter. It's pretty amazing how it'll hang
on. Works nicely in the snow too.
- AWE Short Shift kit.
The stock shifter throw is so long it's like rowing a boat. This kit is pretty
inexpensive as it's a hybrid rebuilt unit and he'll take your old shifter for
- This replaced my old Z-engineering supercharger. The problem with the Z-eng blower
was that the step-up was driven by belts and they slipped. The tensioning system
also seemed to have issues and required enormously high tension on the belt to not slip,
but it generally slipped all the time anyway above 6200 rpms. The high belt
tension went through water pump pulleys and water pumps and the alternator bearings.
The replacement VF-engineering blower has been rock solid.
- ( no longer installed) Z-engineering
supercharger - It's a belt driven centrifugal supercharger, stock-like performance
below 3k rpms, nice between 3k and 4k, and hauls ass after 4k. My
installation Photos here.
I chose it over some of the other kits because of it's ease of installation, and because
of it's very smooth power delivery. I drive my car in the snow and I didn't
want to break loose every time I touched the gas. It makes more power below
3.5k rpms, but it *feels* stock.
- The Z-eng chip. I list this separately because I hope to find a way to get a
new chip. I like the charger, but the software for it sucks. [updated..
GIAC finally made a chip for it. Have it, it's good.]
- A new set of performance tires every summer (I wear em out in less than 8k miles,
plus a set and a half of snow tires every 2 years). Dunlop sp4ks one summer, sp8k's
the following two. Maybe Khumo Ecsta 712's this summer.
Too much time in the mountains, and at the track and so forth. I work from
work, and still put 15k miles on the car every year in recreaction miles.
[2002 update.. ran Falken Azenis Sports for a summer.. WOW!! I'm seriously
addicted. Super stiff sidewalls keep car even more level and the grip is to die for.
Just this side of race rubber. ]
- ATE Powerdisc front brake rotors
plus ATE Super Blue brake fluid. Ferodo brake pads all the
way around. Pretty serious stopping power, no fade even on the track.
- Alignment specs -1.8 degrees negative camber, 0 toe "pressed"
meaning it comes out probably 1/16" total toe out static, and 0 toe under
acceleration. This really improves turn-in, and lateral grip and at least for
me made the front tires wear evenly, where they used to wear on the outside
faster. (Rear tires don't wear at all) Get a good shop to do this.
A tire store will screw it up because the above specs are outside of the factory specs,
and they rarely know how to make their machines do it right, or the machine *can't* do
it. Oh, and make sure they loosen the clamps on the tie rod end boots, or
- Jetex 2.5"
Aluminized Steel cat back exhaust system. - A fairly conservative exhaust for the
VR6. It sound much like stock, but a little louder. It has a
wonderful burble at idle, and you can hear and feel it all through the lower rpms
but it doesn't drone at all like some of the other 2.5" freer flowing exhaust
systems. It's also quite a bit lighter than the stock exhaust and I've been real
happy with it. Now power gain claims, but certainly nothing lost either.
One photo of it during installation.
- Projektwzo dual round headlights - Hella
lighting and the dual round look I fell in love with on the old Mk2 GTIs.
Have the lights set up to run high and low beams together, or with together fogs (useful
for fast driving at night on twisty roads), and can even run fogs alone through some
- Autolamps Online Philips based H1
4100K HID retrofit into the Hella projectors in the Projektzwo low beam housings.
Modified the projector shields to
eliminate/modify the e-code upward splash, plus final
- Euro side molding - Finally the door molding doesn't fall off any more.
- Custom DRL switch, so I have Daytime Running Lights only when I *want* to be
- Programmable Intermittent Wiper relay.
- I/C/E. Stock + 6 disc changer.. :-)
GTI VR6 stuff..
Various Video and Photo links for the car including my 18 minute
Mt. Evans run and some fun track time at Second Creek Raceway.
A bunch photos of my car
And more recent pictures after mods (Pzwo headlights)
Some sound clips of this sweet engine (VR6
Technical Links and other people pages
My page on how to replace the
handbrake/e-brake cables on a GTI-VR6
My page on how to adjust your VR6 cable shift linkage for
A page I created describing various limited slip
My way to describe the relationship between Torque
and Horsepower using simple examples.
My description of how Sway bars work, and how they affect
A post of mine on the Vortex on how lowering a MacPherson
strut equipped car adversely affects the suspension complete with diagrams.
Check out the Car
Stuff section my Web/Usenet Posts page for lots more technical posts.
The GTI-VR6 mailing list technical library
VWVortex Lots of info on VW/Audi products and
Another site with a great
collection of links to technical articles.
Eurotuned - A great collection of VW and other
performance car movies
Gavin Dennis's writeup on replacing the ABS
Inline versus Vee.. What is the VR6?
On the GTI-VR6 list we hack on the the
inline versus vee thread now and again. I threw together an interesting little diagram
showing the actual geometry of the VR6 and a blown up version of what it might possibly
imply about crank geometry. Here's the diagram. The bits of
interest are that not only is the vee extremely narrow (as shown on the left) but the vee
also meets below the center of the crank, as shown on the left and expanded upon on the
right. The VR6 has the firing order of a straight six but is barely longer than an inline
four. The drawing on the right shows an exaggerated version of what's on the
left, and what I was investigating was the fact that the piston acceleration profiles for
the left and right banks are different. The right bank moves slower through the middle
part of the stroke than the left bank because of the angles of the connecting rod relative
to the center axis of the pistons. An interesting trick, and yet the engine is supremely
smooth. More on this topic in the above list archives (user: driver
Here's a couple diagram showing the firing order of the VR6 first with the cylinders
arranged in firing order and then in physical
order. Note how two cylinders always move together and they're
balancing each other.
And here's a really cool AutoZine article on
and design of VW's VR and W engines.
- And I thought I'd just throw this little bit in. Here is the absolute best spot to
install the Panasonic CX-DP601 CD changer (for 98.5
model head units).
- Info on Projektzwo Dual Round Headlights
My install of the Projektzwo dual round headlights, entailed almost a week of painting and
some moderate cramming to get onto the car. I love the look though. Check it out:
Projektzwo headlights and some painting .
- A page detailing the Installation of my Philips H1 4100K HID
- Write an article about the evils of ABS. How it's both saved my life, and
almost killed me.
- Finish my Z-engineering supercharger install page. Currently just photos.
- Create a water
pump installation page with some photos.
- Maybe some day write a page about the lost art of passing on two lane roads.
- A description of the Shine "Lite" suspension and how to install the rear bar.
Back to my home page for various other esoteric nonsense.
Or straight to my motorcycle page or the somewhat more
interesting Montana Motorcycle trip page I put together
some years ago.