| قائمة الموقع |
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عدد صور الموقع: 2889
عدد أقسام الموقع: 109
عدد الـVotes الكلي: 7652
عدد التعليقات الكلي: 11
عدد الـHits الكلي: 2225466
عدد مرات التحميل: 445489
المتواجدين حاليا: 16
عدد الزوار الكلي:
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| أختر لغتك المفضلة |
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| الإعلانات |
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7-11 combo |
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Combo 7.
Combo 7 uses the Victor Jr. intake with the longer duration cam. The result is over 420 HP and a torque level still over 400 ft-lbs. |
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Displacement: |
383 cu. in. |
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Carburetor: |
Holley 750 double pumper |
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Heads: |
GM #441 castings, 76cc chambers, 2.02/1.60 in. valves, pocket ported |
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Intake: |
Edelbrock Victor Jr. |
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Camshaft: |
Comp Cams 292° Magnum hydraulic, with 292/292° of duration, 244/244° of duration @ 0.050 in. lift, and 0.501/0.501 in. lift |
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Rockers: |
1.5:1 |
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Headers: |
1 5/8 in. street |
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Pistons: |
TRW forged |
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Rods: |
5.565 in. |
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Crank: |
cast |
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Comp. Ratio: |
9.3:1 |
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MAX HP: |
Over 420 |
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MAX Torque: |
Over 400 |
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Combo 8.
Combos 8-10 come from the Trick Flow Specialties web site. All three combinations use the same 383 cu. in. engine with a moderate roller camshaft and 10:1 compression. The next three combos vary cylinder heads.
Combo 8 uses the Trick Flow 23° Street heads. These heads are not the Twisted Wedge heads for which Trick Flow became known. Instead, these are direct bolt-on heads, and are marketed to compete with $750/pair to $1,000/pair heads such as the World Products Sportsman II, Dart Iron Eagle, Edelbrock Performer RPM, Holley Systemax, etc. With some help from the roller cam, this engine makes 460 HP and 451 ft-lbs of torque. |
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Displacement: |
383 cu. in. |
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Carburetor: |
Holley 750 double pumper |
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Heads: |
Trick Flow 23° Street |
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Intake: |
Edelbrock Victor Jr. |
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Camshaft: |
Comp Cams hydraulic roller, with 230/236° of duration @ 0.050 in. lift, and 0.510/0.520 in. lift |
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Rockers: |
Trick Flow roller, 1.5:1 |
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Headers: |
1 3/4 in. primaries, with 3 in. exhaust and Flowmaster mufflers |
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Pistons: |
KB hypereutectic, 12 cc dish |
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Rods: |
Trick Flow forged, 5.7 in. |
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Crank: |
Trick Flow forged |
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Distributor: |
MSD Billet with 6AL ignition |
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Comp. Ratio: |
10.0:1 |
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MAX HP: |
460 @ 6000 |
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MAX Torque: |
451 @ 5000 |
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Combo 9.
Combo 9 exchanges the Trick Flow heads from Combo 8 for the World Products Sportsman II's. This results in a horsepower loss of 38 HP and 25 ft-lbs of torque. However, the power level is still very respectable. |
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Displacement: |
383 cu. in. |
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Carburetor: |
Holley 750 double pumper |
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Heads: |
World Products Sportsman II |
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Intake: |
Edelbrock Victor Jr. |
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Camshaft: |
Comp Cams hydraulic roller, with 230/236° of duration @ 0.050 in. lift, and 0.510/0.520 in. lift |
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Rockers: |
Trick Flow roller, 1.5:1 |
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Headers: |
1 3/4 in. primaries, with 3 in. exhaust and Flowmaster mufflers |
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Pistons: |
KB hypereutectic, 12 cc dish |
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Rods: |
Trick Flow forged, 5.7 in. |
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Crank: |
Trick Flow forged |
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Distributor: |
MSD Billet with 6AL ignition |
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Comp. Ratio: |
10.0:1 |
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MAX HP: |
422 @ 5500 |
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MAX Torque: |
426 @ 4500 |
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Combo 10.
Combo 10 uses Dart Iron Eagles instead of Sportsman II's. The swap produces 24 more HP and 7 more ft-lbs of torque than the Sportsman II's. The Iron Eagles also made 14 less HP and 18 less ft-lbs of torque than the Trick Flow 23° heads. We can see that the Dart heads are clearly better than the World Products heads. |
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Displacement: |
383 cu. in. |
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Carburetor: |
Holley 750 double pumper |
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Heads: |
Dart Iron Eagle |
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Intake: |
Edelbrock Victor Jr. |
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Camshaft: |
Comp Cams hydraulic roller, with 230/236° of duration @ 0.050 in. lift, and 0.510/0.520 in. lift |
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Rockers: |
Trick Flow roller, 1.5:1 |
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Headers: |
1 3/4 in. primaries, with 3 in. exhaust and Flowmaster mufflers |
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Pistons: |
KB hypereutectic, 12 cc dish |
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Rods: |
Trick Flow forged, 5.7 in. |
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Crank: |
Trick Flow forged |
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Distributor: |
MSD Billet with 6AL ignition |
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Comp. Ratio: |
10.0:1 |
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MAX HP: |
446 @ 5500 |
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MAX Torque: |
433 @ 4500 |
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Combo 11.
Combos 11-17 come from the Air Flow Research (AFR) web site. Not all of the engine combinations are done on the same test block, but all have similar characteristics. AFR heads cost about $1,200/pair assembled, and a lot of the head work is done by CNC machines.
Combo 11 uses a 383 cu. in. engine with a small 600 cfm carb, AFR 195 cc Street heads, and a moderate to high-performance hydraulic camshaft. The combination produces 440 HP at 5000 RPM and an excellent 470 ft-lbs of torque at a very streetable 3500 RPM. This is one of my favorite combos. |
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Displacement: |
383 cu. in. |
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Carburetor: |
Holley 600 cfm |
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Heads: |
Air Flow Research 195cc Street |
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Intake: |
Air Flow Research FloPower RPM |
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Camshaft: |
Air Flow Research hydraulic, with 218/223° of duration @ 0.050 in. lift, and 0.460/0.470 in. lift |
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Headers: |
1 5/8 in. |
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Comp. Ratio: |
9.0:1 |
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MAX HP: |
440 @ 5000 |
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MAX Torque: |
470 @ 3500 |
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