That would be one nasty cam. The exhaust having less lift than the intake wouldn't be a detriment. You should be able to contact Comp Cams and get those figures you want.
anybody running a comp cams "thunder" serious cam??
i was looking at those and they look ok. but the exhaust has less lift than the intake. i know the exhaust has considerably more duration but i just dont know. also i wish comp cams would show the IVO, IVC, EVO, and, EVC @.050 soo i could see what kind of ramp rate they have. i am looking at the 35-602-8 the "big mutha thumper" cam.
her are the specs i found
THUMPR™ for Small Block Ford Windsor
CAMSHAFT APPLICATIONS
VALVE LIFT @ 1.5:1
LOBE SEP. ANGLE
ADV.
@ .050”
IN.EX.IN.EX.IN.EX.IN.EX.THUMPR™
HYDRAULIC ROLLER High performance street, stock converter ok, best with 2000+ converter and gears, choppy idle
HYDRAULIC ROLLER High performance street/strip, needs 9:1 CR, 2500+ stall, intake, gears, and headers, rough idle
HYDRAULIC ROLLER Street/strip, needs 9.5:1 CR , 2800+ stall, intake, gears, and headers, very rough idle
her are the specs i found
THUMPR™ for Small Block Ford Windsor
CAMSHAFT APPLICATIONS
VALVE SETTING
RPM
RANGE
PART NUMBER
CAM GRIND NUMBER
DURATIONRPM
RANGE
PART NUMBER
CAM GRIND NUMBER
VALVE LIFT @ 1.5:1
LOBE SEP. ANGLE
ADV.
@ .050”
IN.EX.IN.EX.IN.EX.IN.EX.THUMPR™
HYDRAULIC ROLLER High performance street, stock converter ok, best with 2000+ converter and gears, choppy idle
Hyd
Hyd
1900-5600
35-600-8
283THR7
283
303
227
241
.531
.515
107°
MUTHA THUMPR™Hyd
1900-5600
35-600-8
283THR7
283
303
227
241
.531
.515
107°
HYDRAULIC ROLLER High performance street/strip, needs 9:1 CR, 2500+ stall, intake, gears, and headers, rough idle
Hyd
Hyd
2200-5900
35-601-8
291THR7
291
311
235
249
.541
.526
107°
BIG MUTHA THUMPR™Hyd
2200-5900
35-601-8
291THR7
291
311
235
249
.541
.526
107°
HYDRAULIC ROLLER Street/strip, needs 9.5:1 CR , 2800+ stall, intake, gears, and headers, very rough idle
Hyd
Hyd
2500-6200
35-602-8
299THR7
299
319
243
257
.552
.538
107°
Hyd
2500-6200
35-602-8
299THR7
299
319
243
257
.552
.538
107°
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