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|
Combo 33.
Combo 33 uses the big carb, more aggressive cam, and Performer intake with the Torquer heads. The combination produces 355 HP and 379 ft-lbs of torque. The Sportsman II's were not tested with these components.
|
|
| Displacement: |
355 cu. in. |
| Carburetor: |
Edelbrock 750 |
| Heads: |
World Products S/R Torquer |
| Intake: |
Edelbrock Performer |
| Camshaft: |
Comp Cams Xtreme Energy 274° hydraulic, with 274/286° of duration, 230/236° of duration @ 0.050 in. lift, and 0.487/0.490 in. lift. (Corrected valve lift with 1.6:1 rockers is 0.519/0.523 in.) |
| Rockers: |
Comp Cams Pro Magnum 1.6:1 |
| Pistons: |
Ross Racing flat tops |
| Rods: |
Lunati 4340 steel |
| Crank: |
cast |
| Distributor: |
GM HEI with an MSD coil |
| Compression: |
9:1 |
|
|
| MAX HP: |
355 @ 5800 |
| MAX Torque: |
379 @ 4400 |
|
|
|
|
Combo 34.
Combo 34 replaces the Performer intake from Combo 33 with the RPM version. This results in 7 more HP and 3 more ft-lbs of torque. With this setup, the RPM showed to be a bit of an improvement over the Performer.
Compared to the same setup with the Sportsman II heads, this combination made 54 less HP and 14 less ft-lbs of torque.
| |
| Displacement: |
355 cu. in. |
| Carburetor: |
Edelbrock 750 |
| Heads: |
World Products S/R Torquer |
| Intake: |
Edelbrock Performer RPM |
| Camshaft: |
Comp Cams Xtreme Energy 274° hydraulic, with 274/286° of duration, 230/236° of duration @ 0.050 in. lift, and 0.487/0.490 in. lift. (Corrected valve lift with 1.6:1 rockers is 0.519/0.523 in.) |
| Rockers: |
Comp Cams Pro Magnum 1.6:1 |
| Pistons: |
Ross Racing flat tops |
| Rods: |
Lunati 4340 steel |
| Crank: |
cast |
| Distributor: |
GM HEI with an MSD coil |
| Compression: |
9:1 |
|
|
| MAX HP: |
362 @ 5800 |
| MAX Torque: |
382 @ 4300 |
|
|
|
Combo 35.
Combos 35-38 use GM heads that have $1250 worth of work done. These heads have 1.94/1.50 in. valves like the Torquers. These heads have the basic work done, such as a 3-angle valve job and minor porting.
Combo 35 uses the 600 cfm carb, Performer intake, and 262° cam. The result is 309 HP and 358 ft-lbs of torque.
While the Torquers were not tested with these components, the re-worked GM heads made 45 less HP and 26 less ft-lbs of torque than the Sportsman II's with the same setup.
| |
| Displacement: |
355 cu. in. |
| Carburetor: |
Edelbrock 600 |
| Heads: |
GM #882 castings, 1.94/1.50 in. valves, $1250 of head work |
| Intake: |
Edelbrock Performer |
| Camshaft: |
Comp Cams Xtreme Energy 262° hydraulic, with 262/270° of duration, 218/224° of duration @ 0.050 in. lift, and 0.462/0.469 in. lift. (Corrected valve lift with 1.6:1 rockers is 0.493/0.500 in.) |
| Rockers: |
Comp Cams Pro Magnum 1.6:1 |
| Pistons: |
Ross Racing flat tops |
| Rods: |
Lunati 4340 steel |
| Crank: |
cast |
| Distributor: |
GM HEI with an MSD coil |
| Compression: |
9:1 |
|
|
| MAX HP: |
309 @ 5500 |
| MAX Torque: |
358 @ 4300 |
|
|
|
Combo 36.
Combo 36 takes Combo 35 and upgrades the carb to 750 cfm. The resulting increases are 12 HP and 8 ft-lbs more than Combo 35.
On this configuration, these heads make 17 less HP and 15 less ft-lbs than the S/R Torquers. The heads also produce 35 less HP and 29 less ft-lbs than the Sportsman II's on this engine.
| |
| Displacement: |
355 cu. in. |
| Carburetor: |
Edelbrock 750 |
| Heads: |
GM #882 castings, 1.94/1.50 in. valves, $1250 of head work |
| Intake: |
Edelbrock Performer |
| Camshaft: |
Comp Cams Xtreme Energy 262° hydraulic, with 262/270° of duration, 218/224° of duration @ 0.050 in. lift, and 0.462/0.469 in. lift. (Corrected valve lift with 1.6:1 rockers is 0.493/0.500 in.) |
| Rockers: |
Comp Cams Pro Magnum 1.6:1 |
| Pistons: |
Ross Racing flat tops |
| Rods: |
Lunati 4340 steel |
| Crank: |
cast |
| Distributor: |
GM HEI with an MSD coil |
| Compression: |
9:1 |
|
|
| MAX HP: |
321 @ 5100 |
| MAX Torque: |
366 @ 4100 |
|
|
|
Combo 37.
Combo 37 upgrades the intake from Combo 36. This makes 1 more HP and 5 more ft-lbs of torque. The Performer RPM does not really blow away the Performer here.
This package produced 26 less HP and 20 less ft-lbs than the Torquers, and 45 less HP and 31 less ft-lbs than the Sportsman II's.
| |
| Displacement: |
355 cu. in. |
| Carburetor: |
Edelbrock 750 |
| Heads: |
GM #882 castings, 1.94/1.50 in. valves, $1250 of head work |
| Intake: |
Edelbrock Performer RPM |
| Camshaft: |
Comp Cams Xtreme Energy 262° hydraulic, with 262/270° of duration, 218/224° of duration @ 0.050 in. lift, and 0.462/0.469 in. lift. (Corrected valve lift with 1.6:1 rockers is 0.493/0.500 in.) |
| Rockers: |
Comp Cams Pro Magnum 1.6:1 |
| Pistons: |
Ross Racing flat tops |
| Rods: |
Lunati 4340 steel |
| Crank: |
cast |
| Distributor: |
GM HEI with an MSD coil |
| Compression: |
9:1 |
|
|
| MAX HP: |
322 @ 5200 |
| MAX Torque: |
371 @ 4000 |
|
|
|
Combo 38.
Combos 38 is the last of the 14 similar combinations. The GM heads are tested with the longer-duration cam.
The amount of power is 21 HP less than the Torquers and 76 HP less than the Sportsman II's with the same other components. Torque for the GM heads is 16 ft-lbs less than the Torquers and 30 ft-lbs less than the Sportsman II's.
A graph of all 14 variations is shown next.
| |
| Displacement: |
355 cu. in. |
| Carburetor: |
Edelbrock 750 |
| Heads: |
GM #882 castings, 1.94/1.50 in. valves, $1250 of head work |
| Intake: |
Edelbrock Performer RPM |
| Camshaft: |
Comp Cams Xtreme Energy 274° hydraulic, with 274/286° of duration, 230/236° of duration @ 0.050 in. lift, and 0.487/0.490 in. lift. (Corrected valve lift with 1.6:1 rockers is 0.519/0.523 in.) |
| Rockers: |
Comp Cams Pro Magnum 1.6:1 |
| Pistons: |
Ross Racing flat tops |
| Rods: |
Lunati 4340 steel |
| Crank: |
cast |
| Distributor: |
GM HEI with an MSD coil |
| Compression: |
9:1 |
|
|
| MAX HP: |
341 @ 5700 |
| MAX Torque: |
366 @ 4300 |
|
