1988 377CID Procharged Iroc-Z28
This is my brothers 1988 Iroc-Z28 with a 377c.i.d. Stroker and D-1
Procharger. I made this video ten years ago in 2001. It was very
difficult to tune this engine at the time, due to the limited availability
of ECM tuning options. I was programming PROM's as best as possible for
this, which was, to say the least, superfluous. This engine flowed so much
air, the mass air flow sensor would max out at part throttle, and could not
be compensated for in pump-shot tables. This was built emissions friendly
(passed with flying colors), and retained all stock creature comforts. We
were the first to use the upgraded prototype mounting bracket for the D-1
Procharger on 3rd generation Camaros. The old design was
thinner, and only contained 3 mounting holes. As of today, it sits after
never completing the upgrade to DFI 7, Wide band 02, and 55lb. low
impedance injectors. Even though it never saw wide open throttle, it
remains un-defeated on the road after many impromptu races!
-377 C.I.D. 9.0:1 static compression(4.000 bore x 3.750 stroke), Forged
bottom end, AFR heads, SLP roller cam, SLP runners, Edelbrock intake
base/58mm TB, Be-Cool aluminum radiator, Permacool dual-circuit oil cooler
w/ electric fan, Air-to-air intercooled ATI D-1 Procharger, 1 3/4 SLP
headers, 4" Mufflex Exhaust w/ 4"
Random Tech catalytic converter, Art Carr 700R4, Precision Industries 9"
vigilante converter, stock 9 bolt differential with 2.77 gears :)
Supercharged 383 sbc 78 camaro transformers
Engine now fitted and running! The sound is a little distorted due to being
in a closed room but will do some
more video when the car is out of the workshop. The engine runs forged
eagle crank, H-beam rods and SRP
blower pistons. The heads are dart iron eagles with 2.02" inlets and 1.60"
Exhaust valves. The runners are 200.
I am running a hydraulic cam as this is a street car, i may upgrade to a
solid roller later in the year. The gearbox
is a Th350 with a manual valve body and a 10 bolt rear end with LSD and
3.73 to 1 gears.
Next video will be ouitside and running and probably knowing me doing a
burmout or two!!
1991 Supercharged 383 TPI Camaro Z28
This is my 1991 Z28 Camaro. I am running an Eagle
bottom end (5.7" H-beam rods) with forged JE pistons. The block is a 1976
4-bolt main block with ARP bolts. That is good for 383 cubic inches. The
compression ratio is around 8.2:1. It has a custom ground Lunati flat
tappet camshaft, Crane full-roller aluminum rocker arms, and Comp Cam
lifters and springs. The heads have mild port work done. The TPI induction
is stock except for a TPIS air foil. It has Hooker long tube headers
(#2210) and 4" single Mufflex Exhaust
to a Spintech muffler with 3" duals out and a Flowmaster merge y-pipe. The
blower is a Vortech S-trim with a 2.87" pulley, good for about 12-14 psi at
5500 rpm depending on conditions. The car has not been fully tuned yet with
the stock computer. It is running 30 lbs injectors with a 4:1 Vortech fuel
pressure regulator (yes, I know). It has a shift-kitted 700-R4 with a
3000rpm stall TCI torque convertor. The rearend is a 10-bolt that I have
rebuilt once with Richmond Street 3.73 gears and an Eaton carbon fiber
clutch posi. It has run a best G-Tech time of 13.6 at 110 mph spinning the
tires through first and halfway through second at 5200ft elevation. The car
is estimated around 450 fwhp and over 550 ft/lbs of torque. I am in the
process of pulling the car apart to repair the body, replace the broken
windshield, and replace the transmission. The car was sitting for about a
year after I blew 3rd gear. This is the 4th time starting since. There is a
pulley that is making noise that can be heard over the blower. I am
planning on making a few more videos before the teardown. The revs were to
about 4000rpm and the belt was not adjusted very tightly. Sorry about the
bad sound quality.