As you can see, I made little effort at
making it look pretty. For me, cleanliness, reliability, simplicity, and functionality are
paramount. In addition, with the theme of the car being updated
classic, the installation was done to appear as close as possible to
what GM would have done.
As can be seen above, a GM R4 compressor
is being used for the A/C since I already had serpentine brackets.
While the Classic Auto Air system comes with a Sanden compressor, the kit
can be ordered less the compressor. To use the R4 compressor, CAA
offers an optional billet aluminum adapter to allow their hoses to be used
with the R4 compressor. This is all detailed in my write up
which is available on the Interior page of this
The engine and exhaust specifications are
Borla 1 5/8" stainless steel exhaust headers
Dual 2 1/2" pipes with "H" crossover
Dynomax Super turbo mufflers
Glass packs just downstream of the headers to act as
1990 Camaro serpentine accessory belt drive
Custom cold air duct with relocated manifold air temp
Mid-90's Ford Taurus Electric fan
Corvette HEI distributor with MSD high output coil
That cold air duct is a 4" diameter
aluminum tube with associated rubber elbows (upgraded from the original 3").
Having relocated the battery to the trunk, it opened up that location for
routing the air duct to outside the engine bay. The tube penetrates
the floor of where the battery used to sit, and it terminates to a low
profile Spectre air filter. The intake air temperature literally
dropped over 40 °C (as confirmed on my scanner reading- with temp sensor in
the same location relative to the air filter for apples-to-apples
As far as performance, the engine makes
around 400 hp but still nets about 23 mpg on the highway. It's a great
combination for a street driven car.
A recent upgrade to the cooling system
consisted of a mid-1990's Ford Taurus electric fan and an aluminum radiator.
The fan is a two speed model and moves an incredible amount of air-
reportedly around 3500 cfm on the low speed and in excess of 4000 cfm on the
high speed. To date, with the aluminum radiator, the low speed mode
has been more than sufficient to cool my Camaro with the A/C on in traffic,
in 100+ deg outside temperature. Both speeds are controlled by
the ECM, in which I can set the on/off temperatures to whatever I want.
For power, the main power input for the high and low speeds is switched by a
Bosch 75 amp relay on each input. The fan's airflow capability
requires a lot of electrical current, so to be conservative I used one 75
amp relay for each input.
I generated an
installation write up that shows how to mount the fan to the radiator
(without those lousy zip ties).