Originally Posted by ErVikingo (Post 3739826)

I run PMO 46's. You can on the 911 class but not on the FIA 911 class. If you run a crankfire ignition you get a weight penalty.

Not sure how light you are but the limits are not unreasonable - 2050 with driver at end of race and (I'm glad to say) that they actually check the cars at the end of the race.

All Vintage Classes of Porsches
a. No Camber Plates
b. Stock pickup points
c. No Crank fired ignition
d. All cars must have MSD Rev limiter with 8200 RPM max Chip
e. No Coil Over Shocks
f. 1973 911 “S” Brakes Maximum

for Klub Sport Challenge

2.0 LITER 911/914/6 PORSCHE
ENGINE
1. 2.0 Liter 81mm Bore Maximum X 66 mm Stroke
2. Weber or PMO Carburetors up to 46 mm or Bosch Mechanical Injection as supplied on
1969 911S
3. Distributor fired MSD 6AL with 8,200 RPM rev-limit chip or MSD Soft Touch Rev
control with 8,200 RPM rev-limit chip, distributor fired ignition (Must be mounted out of
reach of the driver).
4. Twin Plug – OK
5. Heads are to be original 2.0 Liter components. (45mm Intake Valve, 39 mm Exhaust
Valve maximum diameter.) ** Aftermarket components must be pre-approved.
TRANSMISSION
1. Factory - Supplied Gearbox as per year of manufacture. – 5 Speed
2. 901/911 Transmission – OK
3. Gear Ratios – OPEN
4. No progressive shifters, no paddle shifters; shifter may be altered to accommodate driver
seat position but must be a standard 5 speed pattern manual shifter.
BODY
C 911 Body to remain stock up to 1969 configuration
C 914 stock or “factory configured” 914-6 GT body work is ok
C Seat position to remain stock.
1. Up to 1969 911 Front Bumper Required
2. Tub to remain stock and complete - bolt-on Panels/Material – FREE
3. 911 – will be 2,050 lbs with driver. (All cars will be weighted with driver as raced at the
end of each race.)
4. 914 /6 – will be 2,125 lbs with driver. (All cars will be weighted with driver as raced at
the end of each race.)
5. Tube Frame Chassis – ILLEGAL
6. Dzus Fastened Panels (Exterior Panels) – ILLEGAL
7. 914 Windshield or Roadster – OK
WHEELS
8" x 15" maximum width and diameter Rear
7" x 15" maximum width and diameter Front
TIRES
1. 225 X 50 X 15 Maximum Size Radial Rear
2. 205 X 50 X 15 Maximum Size Radial Front
3. 50 Series Lowest Profile
4. Street DOT Radial (HSR Approved Tires Only)
DOT radials as follows:
Toyo Proxes RA1
Khumo Escta V700
Yokohama AO32
Hoosier- New prototype in testing. We will advise through the HSR website as to the results and
eligibility of this new tire.
SUSPENSION
1. The Suspension must be exactly as fitted by the original manufacturer as to type and
location.
2. Coil over springs and remote reservoir shocks, including newer internalized reservoirs,
NOT allowed
3. Anti sway bars- free so long as they fit on or into factory mounts and pickups.
4. Bushing material free including spherical bushings on front upper strut mounts and rear
trailing arms.
5. Torsion bars- free to the extent they fit into stock torsion tubes and A-arms.
6. No camber boxes.
7. No billet front shock mounts.
BRAKES
1. Brakes up to 1973 – FACTORY STEEL OR ALLOY “S” SUPPLIED CALIPERS AND
ROTORS.
2. 1978 911SC Front Caliper (Cast Iron A Calipers) may be substituted in front.

Originally Posted by Vintage911Racer (Post 3744819)

Mark,

Lools great. Did you notice a change in sounds with the header and exhaust wrap on there?

Oh by the way!!! I have heard you like to change your seat position...:eek: LOL...

Originally Posted by jplavanjr (Post 3736395)

Looks good Mark.

Are you going to test at BWRP Feb 9&10?

I've still got a lot to do to get the car back together...

Originally Posted by Vintage911Racer (Post 3745294)

Thats cool Mark. Congrats on the new motor. What did you change on the 2.0L to make it rev quicker then the 2.5L?

My motor now revs much quicker then my 2.0L did.


JP... are you bringing your car to buttonwillow to test? I am not sure If I am bringing mine or If I am just going to instruct. I am going though... no matter what. Driving the motorhome up.

Originally Posted by Vintage911Racer (Post 3745310)

Yeah Mark, I did do alot more work inside my new motor. You are probably right.

Glad you got a new motor together.. You and JP are going to have a blast in CP... Maybe I should sell my new motor and go back to 2.0L class. More fun there.

Oh yeah.. check out new website in my signature.... Just redid it. Came out pretty nice.