I gotta that friends and fellow geekers Toph, Jim, and Ryan, for work already done on the car and work to come.
So here is the plan for the coupe. It will be a 90%+ track car with the occasional fun run or test and tune on the street. The car is completely gutted and going through a major body transformation.
Chassis worked started this winter down @ Haydn’s shop, a ton of work has already been done so ill be working on catching us back up to current timeframe.
The decision to work with Haydn was exceptionally easy. The engineering and fabrication the went into his S4K project are just awesome! http://www.motorgeek.com/viewtopic.php?f=6&t=29308" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;
We got together a few times to develop a plan for the car, and a few weeks later he came to pick up the car and we were off to his shop. As soon as the car was on the lift the cutting began. The battery tray was already out, a ritualistic project first step/ceremonial moment, and we got right into the important things. Mounting a 24v vr6 that comes in it’s donor car as a transverse mount. We had a few unusual obstacles as the motor was now being mounted longitudinally for use with Quattro!!! Car is also using custom rear mounting for a large chassis, t44/c4, rear differential, which is great as I can swap in a torsen v8 unit or a c4 locker unit as I see fit.
The chassis, motor, and driveline choices will all be explained when we get to them. I am looking to build not the lightest car, but a lighter car with much better than factory balance and handling, and to make it quite powerful but also reliable and easy to work on when that must be done. I feel quite confident that it will be a strong, reliable, amazing piece of machinery when we are finally done.
Chassis/ Braking
HT driver and passenger seats have been moved back about a foot
HT steering arms/ strut housings
HT heim jointed tie-rods
HT custom trans and exhaust tunnel
HT driver motor mount arm
custom passenger side alu motor mount arm with manual tensioner, belt roller and alt. mount
HT removable trans mount bar and delrin bushing
extended shifter linkage and steering column
HT camber/castor plates front and rear, raised as well
HT front strut bar
custom alu center support
front mount radiator and IC
many more things that ill be adding as I remember them
aluminum subframe mounts
rear mounted battery
Engine/ Driveline
24v VR6 BDF code block
R32 cylinder head w/round exhaust ports
Vw touareg 3.2L oil pan, shortened
custom intake using ross machine velocity stacks
custom ss t4 equal length, twin-scroll exhaust manifold
4” ss downpipe, 3.5” exhaust, aluminum, straight through
dual Tial MVR 44mm watercooled, v-banded wastegates, 2" long tube WG dumps
Holset super 40, 7 blade billet compressor wheel + 19cm^3 t4-divided housing
HT v8/urS rear diff in oem housing all custom mounting
Compression dropping spacer
Vipec V88 engine management
034 r32 intake manifold phenolic spacer
earl’s 25 row -10an oil cooler
Vanjen couplers all around
custom 3x 10AN catch can with dual 1" outlets
16AN turbo oil drain
complete AN cooling system with 20AN main lines
034 vr6 oil flange adapter plate
injectors to be decided
urS6 95.5 wide first 01E
B5 S4 shifter linkage, extended
034 motorsport spec motor and rear diff mounts
Suspension
custom subframes and tubular control arms, fully spherical and adjustable
with geometry compensation
much more info to come
braking/wheels
Compbrake 5:1 race pedal box w/ bias adjustment
Compbrake hydraulic handbrake w/ pressure adjustment
HT Wilwood to b3 knuckle brake adapters for 320mm rotor
custom rear brake adapters for b5 s4 calipers and b6/7 300mm rotors
Companies, Products, and Links
-Haydn Taylor @ http://www.motorsport-HT.com chassis, driveline, and suspension fabrication
-Ryan Higbee @ Higbee Performance Fabrication [url]hpfabrication@gmail.com[/url]
many many more to be added as parts and fab are added/updated
Ok so this project has been in the works for a loooooong time, so here’s a quick story about the slippery slope and its inevitable delays. It started off a few years ago when I was out of college and bought a 97 a4 1.8t, got it chipped and such put some sway bars on it and enjoyed it for a while. Having the full intent to turn it into a full on caged track only car. Then I started shopping around for a turbo upgrade, being not that sure what I wanted to put on the car and whatnot I remained undecided for a while. All the time I’d been pricing out turbo upgrades and internals and such as id need a full built motor to make the power I want. As I mulled that over in my head the b5 s4 tuning had been coming along nicely, GT turbo kits were coming out, the big single snail idea was getting thrown around a lot more. After seeing all the power that the b5 S guys were putting down on stock motor, that seemed like the way to go. As the car prices were falling and a fully built motor isn’t cheap, I decided to trade up for a S4 because I’d be able to make ~450whp on a stock long block without issue. So yes, it was a anew car, but they were both B5’s so the majority of my parts carried over and what didn’t, well those got sold off. So here I am with the S4 and I’ve been working for a company that provides me with a car. So the S was destined to become the track car. I spent most of one summer driving it around in chipped form with a fully gutted car and a single race seat, it was light and fun and pretty damn fast once you take 800 lbs of misc. stuff out of the car. In the quest for a track car, and realizing the maintence hassle of the 2.7tt, and the inability to change things/ replace parts quick and easy, made it seem like this might not be the motor for a track beast that needs to be torn down off and on throughout the year. Enter the 24v VR6. this motor is more compact, much easier to put a single turbo on, its mostly one of part, not like the 2 of each in the s4. with its tight V angle and single cylinder head there was massive amounts of room in the engine bay, its great all the exhaust is on one side and intake all on another. It was simple and easy to work on/around. As the epic pile of parts continued to grow the issue of tuning loomed like a dark cloud. In my state, any car 1996 and newer is subjected to an OBD plug in readiness code check. the combination of wanting to go mega big turbo on the vr6 and the fact that this motor never came in a b5, and this and that, and the fact I wanted some launch control, boost by gear etc the answer suddenly became very clear, standalone engine mgt, but yea it’s a 2000 model year car, so it would need to pass OBD readiness etc and all. While it may be possible, it would cost a fortune and be a hassle etc. so the only way to run a standalone was to get into a pre-1996 chassis. So I did just that. Out with the old and in with the new-er-to me. Gone was the b5 s4 and enter the ’90 coupe Quattro.
I got the CQ shell from member here last summer in exchange for b5 s4 o1e swapping his DD CQ. Prior to me getting it, the shell had been completely stripped and beadblasted, what a relief, I’m glad I don’t have to do all that.
so ill start with a reasonably current pic, and then start catching up from the beginning
there are 7 huge mains and the motor is only 17" long! also the space between cylinders is quite thick. i wont be crackign any blocks like those turbo R32 guys, thats for damn sure 