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The only supercharged MR2 being rallied in the U.S.
Attention MR2 Owners! MKI Rally racer (Info supplied by terry grd4spdracing@cox.net) William and Julie Yates are the Forefront ProRally Team, USA. the 2001 SCCA
SOPAC Rally Champions. William has been gracious enough to offer us these images
of his awesome car. They are a true inspiration for local and world wide MR2
owners, and are always very willing to help.
Visit http://www.www.prorallymr2.com.html/The
Official Site of the Only Supercharged MR2 Being Rallied in the U.S.
2001 SCCA SOPAC Rally Champions - Forefront ProRally Team, USA. William and Julie Yates
LATEST NEWS: Forefront Rally Team enters SCCA Rim of the World
ProRally in Palmdale Calif, held on May 3-4, 2002. http://www.rimoftheworldrally.com/
1989 Group 5 Supercharged Toyota MR2 Photo by: E. John Thawley
III Top 2 photos, 2001 Rim of the World ProRally Our car is undergoing some visual changes for 2002 and we hope
to get some magazine features with our new look. All the red decals from
the SportCompactCar photo shoot are gone and we are going for a black and white
theme this year.
Roof vent style from Fast and the Furious. I'm still
deciding on whether to use this on the car - it's pretty outrageous. If there is
interest, we may be able to get more of these to sell to MR2 junkies. Only
really appropriate for hardtops, unless you don't want to use your sunroof or
T-Tops anymore!
Anyone wanna buy a used rally hood? This thing flew up no fewer
than 3 times - once destroying the windshield, once causing me to drive 1.5
miles home in reverse. All 3 times my fault - forgetting to do up the hood pins - dumbass!
OK, how cool is this? We're going for the full rally car look,
no more 2 lights sticking out of the hood motif like last year.
William Yates (far right) posing with rally greats Tony Chavez
and Doug Robinson just before the start of the 2001 Rim of the World ProRally.
Photo by: Julie Yates
William Yates poses with his car before trying to destroy it at
top speeds in the Angeles National Forest.
Custom rear brakes designed to handle the heat and punishment of
ProRally. William Yates designed these based on the front caliper and modified
front rotor. Brake bias is fully adjustable.
The office of William Yates. Note the Sparco Rally steering
wheel and the red handle which is for the adjustable brake bias.
Office of Julie Yates. Note the rally computer and availability
of trauma shears to quickly cut seatbelts in the event of a roll-over.
Modified front rotors and fully custom coil-over rally suspension.
Engine is Toyota 4AGZE Supercharged. Built by William Yates, it
was balanced, blueprinted, forged pistons, ram air, remote oil filter, and many
other racing modifications.
Engine
4AGZE 1.6 Liter DOHC 16 Valve, Cast Iron
Block, Aluminum Head, Balanced, Blueprinted
Engine Components
ART Forged & Ceramic Topped 4032
Aluminum Pistons, Reiken Rings
Compression
8.0:1
Induction
Supercharged (Roots Type Blower)
Intercooler
Denso, 19 Core
Boost
12 PSI, Overdrive Pulley from Toysport
Oil Cooler
In-Line Oil / Water
Air Filter
K&N, Ram Air Roof Pick-Up
Exhaust System
MagnaFlow Custom Stainless Cat Back,
Custom TIG-Welded Header
Power
180 BHP
Power/Weight Ratio
13.8:1
Length
155"
Width
63"
Height
50"
Wheelbase
92.5"
Track
57"
Curb Weight
2500 lbs
Layout
Mid-Engine, Rear Wheel Drive
Drag Coefficient
0.36
Transmission
5 Speed, Close Ratio
Differential
Open
Clutch
CENTERFORCE Custom Dual Friction
Suspension
Custom Coil-Over, Tokiko Adjustable Gas
Strut Inserts, Eibach 2-1/2" Coil-Over Springs
Chassis
MIG Stitched, Strut Tower Braces,
Underbody Skid Plates, Door Sill Braces
Brakes
Custom Cross-Drilled Vented Discs,
Porterfield Pads, Earls Braided Lines, Tilton Bias Adjuster
Wheels
Team Dynamics Racing "Phantom"
15"X6.5" White
Rally Tires
Silverstone S55, 175/65/14 (mounted on
stock rims for racing)
Driving Lights
Hella with custom Rally light pod
Rollcage
Autopower, Welded In
Battery
Interstate Deep Cycle
Seats
Corbeau Forza
Harness
Simpson 5 Point
Computer
Alpha Pro
Drivers Suits
Sparco
Helmets
Simpson LX-8, Nomex/Intercom
Steering Wheel
Sparco Rally
Intercom System
Sigtronics Aircraft
On Board Air Comp.
Forefront Racing Development Custom
Builder
Forefront Racing Development, Mission
Viejo, Calif. (wmy@usc.edu)
http://www.prorallymr2.com/
Driver
William Yates
Co-Driver
Julie Yates
Crew Chief
Robert Yates
SPONSORS Major:
MagnaFlow Exhaust, Centerforce Clutches,
Silverstone Rally Tyres
Team Dynamics Wheels, Wings West
Associate:
Silverstone Rally Tires, Modern Image
Signworks, Toysport
Racing Class
Group 5 for SCCA Pro Rally &
International Rally/Open 2WD for California Rally Series
2001 Results
SCCA SOPAC Group 5 Champions, 3rd place
California Rally Series Group 2/5
2001 Events
Rim of the World Pro-Rally (TV), Treeline
Club Rally, Ramada Express International Rally (TV)
2001 Events (cont)
Gorman Ridge Rally, Hot Import Days, other
show events.
If William ever gets off his butt, we may be offering the following rally proven
parts:
1) Rear strut tower brace
2) Brake kits
3) Supercharger stuff
4) Coil-over conversions
5) Naked rally pictures
I backed into the 180 BHP based on dyno runs I did that showed 156~158 Rear
Wheel HP. Assume 12-15% drivetrain losses and you get around 180 - slightly less
but it is a nice round number.
I run 12 PSI boost and the engine is ported and was balanced by an aircraft
engine shop. It is very slick and runs pretty efficiently. Custom MagnaFlow
exhaust good for a couple, surprisingly, removing the CAT makes no HP diff.
Running 15" rims vs 14" rims on the dyno cost me 10HP - that was the
most surprising find of all.
Hi Terry - the S/C is great - in fact it is for sale. There are two mags that
want to run full features on it, so I'll probably keep it for at least that
long. Next race is in Sept but we plan to miss it - Still run stock ECU - it is
terrible and doesn't know what to do with increased boost levels - it goes full
rich all the time - I get awful gas mileage - there are several available from
Japan - if you can read japanese to figure out the software - there was a
company called Techtom in Torrance, CA who made one, they were going to sponsor
me but fell through when they changed their business model and name of company,
etc.
Good luck - William Yates
William Yates wmy@marshall.usc.edu
Staged photoshoot near Lake Elisnore, Calif.
Bottom photo:
crashing through the spectator tape at the 2001 Prescott Forest
ProRally!
William and Julie Yates finished the Rim of the World ProRally in
19th place overall and 2nd in Group 5, losing out to Dave and Rick Hintz in a
well-sorted and well-driven Turbocharged Mazda RX-7
They also competed in the
2 ClubRally events and finished 12th overall and and 3rd in Group 5 on Friday
and then 10th overall and 2nd in Group 5 on Saturday, advancing their seed from
4 to 3 in the process.
