The car is a 64 Studebaker Avanti. This car was delivered with a supercharged 289 Studebaker R2 engine and was equipped
with a 4 speed T10 transmission and power steering.
The color you see in the pictures
is the original Avanti grey, repainted about 15 years ago and never reassembled by the previous owner.
In order to comply with the regulations
for Bonneville or El Mirage a 6 point roll cage has been installed along with a racing seat and 5 point harness. The roll cage is designed to be bolted together using 7/16 grade 8 bolts.
The complete interior is retained except the front seats
The batteries are mounted in the trunk
on the right side. On the left side is a 5 gallon fuel cell , pump and filters. New stainless fuel lines are installed outside the frame rails. These were a little difficult to install and involve the use of several sections in order to install the
.50 inch supply line and .375 return line.
The transmission is a TKO-600 5 speed transmission. The clutch is hydraulically activated.
The rules require a safety shield or a safety bell housing. Since nobody
builds a safety bell housing for a Studebaker engine I adapted a Chevrolet safety bell housing by drilling it and adding some
bosses to fit the Studebaker engine. See the page 3 photo's. The clutch is hydraulically actuated as this
was the easiest way to do it.
The engine is a Studebaker V8. In order to run in an E engine class the engine was over-bored and de-stroked to produce 260 cubic inches. The crankshaft was a new 259 crankshaft that was de-stroked and uses 1.88 diameter rod bearings.
The crankshaft was also nitrided for added durability. The mains were modified by machining them and adding straps.
Afterwards the mains were line bored. An ATI crankshaft damper is used with a custom made crankshaft hub.
The standard Avanti
V8 is 289 cubic inches. The R3 and R4 engines were 304.5 cubic inches. An Avanti with one of the standard
size engines would run in D class. An Avanti owned by Dave Bloomberg is the current record holder in Classic Production
Supercharged D class.
rods were custom built to our requirements. See the page 3 photo's. The
pistons are also custom built to our specifications. The block preparation
included modification of the main bearing caps to add reinforcement straps, line boring and machining the deck surface to
obtain equal height side to side and front to rear. A roller cam is used with
a total lift of over .600 inches. The heads have been modified with 1.84 inch
intake valves and 1.6 inch exhaust valves. The existing heads have had a significant
amount of porting work performed. The rocker arms are aluminum roller using a
modified Studebaker shaft and stands. See photo on page 3 photo's.
The oil system
has been converted to a dry sump system. The pump is belt driven from the crankshaft.
The oil pan is a modified stock oil pan. An accumulator is also used to protect the engine in case of an oil pump failure.
The Since electronic
fuel injection is not allowed in classic production classes a mechanical fuel injection system is utilized. The fuel injection system is an Airflow Performance unit that is frequently used in racing airplanes.
It is based on the Bendix constant flow design with a number of enhancements. The unit measures air flow through a venturi
system and the fuel flow is directly controlled by the air flow. The air metering system sits in front of the supercharger
so the amount of boost will not affect the fuel air ratio. The supercharger is a Paxton Novi 2000 driven with
a multi-grove belt.
The rear axle is the stock Dana 44 converted to use
flanged axles. Brakes front and rear are stock Studebaker.
In the current configuration we expect to have a top
speed of about 180 mph. Future modifications should provide enough power to get to 200 mph. At the bottom of the
page is a chart that shows an estimate of required horsepower vs speed for an Avanti.
If you are interested in seeing
more information on racing at Bonneville or El Mirage you can go to the SCTA-BNI website www.scta-bni.org.
Under Construction - More to be added