Building the Chrysler Proving Grounds
Chrysler's Chelsea Proving Grounds is Located at 3700 South M52 in Chelsea
Michigan, just 60 miles west of Detroit. The 3,800-acre Proving Grounds is
one of the largest, most modern automotive test sites in the world.
Dedicated on June 16, 1954, its roads and facilities have been improved and
expanded continually to keep pace with product offerings and testing
techniques. The Chelsea Proving Grounds contains over 100 lane miles of on
and off road test surfaces. Durability and Reliability testing is
conducted year round in laboratories and on specially designed roads. In
addition to test roads and surfaces, the Chelsea Proving Grounds also
offers impact testing, emissions and fuel economy testing.
TeraFlex Install: Mopar Stage 3 Lift Kit
The Mopar Stage 3 Lift Kit co-developed by TeraFlex. A premium lift kit
available from authorized Jeep dealers. You need to watch Teraflex's EVAP
Relocation video when installing this kit.
360 Mopar Small Block Edelbrock Head Dyno Test
Shady Dell Speed Shop 360 Chrysler on the Dyno @ Shady Dell. 360, .030"
over, SRP Flat Top pistons, 11.8:1 compression, 3.58" SCAT 4340 crank,
6.123" H beam rods, SDSS Custom Solid Roller cam, 256/264 @ .050" duration,
.620" lift, 108 LSA. Stage 1 port Edelbrock heads, Edelbrock Victor 340
intake, ProForm Carb..... 587 HP, 497 FT LBS of TQ.
1973 Charger 318 390 Stroker on the dyno for a quick run
318 to 390 cubic Inch Stroker Specs:
ICON Forged Flattop pistons
Forged H beam Rods
Comp Cams Thumpr Cam
Heavily Ported 340 T/A Heads
1.5 Harland Sharp Offset roller rockers
Edelbrock Performer Airgap manifold
Holley 850 Avenger Carb
Headers with 3" Custom dual Exhaust
MSD DIstributor, Coil, and Ignition Box
TCI StreetFighter 904
8-1/4 LSD rear with 4.10 gears
The engine is running high 10's low 11's compression ratio and therfore
decided to run a blend of race fuel with an octane rating near 100. After
the Dyno run I
realized that the cam is doing nothing to help the engine make power and it
was evident in the numbers. Don't get me wrong it sounds great but its not
much in the power department, but thats the cams design I guess. The car
made 301 RWHP and 331 FT LBS of Torque.
We changed the carb to a 650 double pumper and were expecting better
results since the 850 is quite large for the engine but to no avail. The
carb change only produced 2 more rwhp and 1 more ft lbs of torque. Not
worth the expense of changing it especially for what ill be using it for.
I will be changing the manifold to a single plane and the cam will be
changed for something more aggresive like comp cams XR292HR-10. Hopefully
this will get a little more power out of the sucker.
Thanks for watching
Dyno pull of my 318 stroker (390) Dyno pull of my 318
with a 4" stroker kit, bringing the displacement to 390 cubic inches. It's
a very simple and mild street engine combo, consisting of 9.3:1
compression, a mild hydraulic cam, and bowl ported but otherwise stock iron
magnum truck heads. It made 367 HP @ 5,300 rpm, and 407 foot pounds of
torque @ 4,100 rpm. This engine is going in my 1989 Jeep Wrangler.
Special thanks to Performance Only in Delray Beach, FL for the excellent
machine work, building of the engine and tuning. Thanks to Eddie "Elvis"
Miller at The Engine Works for working the Dyno and providing tuning