"Hey guys I need some help choosing a new cam for my 383 stroker.
I have a 72 Chevelle. And my goal is to have her run low 11's. First here is my whole setup:
-383 stroker, all rebuilt, 1500 miles on motor, trans, drivetrain.
-Hedmann long tube headers
-11:1 compression hypereutectic pistons
-Current Cam specs:
INTAKE: Duration: 278º Lift: .461
EXHAUST: Duration: 284º Lift: .468
-DART Iron Eagle sbc heads
-roller rockers
-Edelbrock Tranctula TM-1 Intake
-Holley 750 vacuum secondary carb
-Msd ignition
-Turbo 350 trans, shift kit, b&m star shifter
-4.33 gears, 35 spline axles, swarr auto rear
-Mickey Thompson ET Street Drag Radials 295/65/15
-Full interior
It has not been to the track yet but will be this summer. What do you think she would run as of now? I think high 11's low 12's?
Can I get my car to run low 11's with just a cam? I know the one i have now is a small cam. What size should i be looking at? Just looking for some opinions. Thanks. "
personally Id sell that intake or throw that intake in the nearest dumpster
ID USE THIS INTAKE if you have the hood clearance
http://www.summitracing.com/parts/HLY-300-110/
every choice you makes a compromise in some way,but assuming you want to retain as much as you can of the current parts list,
ID BE SELECTING A SOLID ROLLER CAM, an 1.6:1 roller rockers and swapping to the correct valve springs and checking clearances , and get any required head machine work done, ID have the heads bowl area and ports cleaned up, and get a 3 angle valve job, and ID buy a good rocker stud girdle, and a 4400 rpm stall converter , (contact a good converter manufacturer and discuss whats correct) ,and good slicks, ID also think about adding a 150 hp nitrous plate system, yes HYPEREUTECTIC pistons and high rpms are not a great idea with nitrous, but careful tuning , limiting the shot to 75-100hp,and keeping the mix rich and staying under about 6300rpm should let you get by, if you don,t go with the mild nitrous shot get a RPM air gap intake, but the nitrous boost will help.
that way you concentrate on maximizing the potential power in the 4200rpm-6300rpm power band
http://www.summitracing.com/parts/EDL-70050/
http://www.summitracing.com/parts/LUN-91656/?rtype=10
viewtopic.php?f=52&t=5078
youll need race octane fuel
http://www.leesracing.com/fuelspec/g7.html
in an ideal RACE combo your power curve would look similar to this and youll have a converter stall speed and rear gear ratio and tire diam. that allows the engine to stay in (in this case the 4000-6500rpm power band) but thats hardly ideal in a street car engine combo
but CALL THE CAM COMPANY OF YOUR CHOICE FOR MORE INFO
I have a 72 Chevelle. And my goal is to have her run low 11's. First here is my whole setup:
-383 stroker, all rebuilt, 1500 miles on motor, trans, drivetrain.
-Hedmann long tube headers
-11:1 compression hypereutectic pistons
-Current Cam specs:
INTAKE: Duration: 278º Lift: .461
EXHAUST: Duration: 284º Lift: .468
-DART Iron Eagle sbc heads
-roller rockers
-Edelbrock Tranctula TM-1 Intake
-Holley 750 vacuum secondary carb
-Msd ignition
-Turbo 350 trans, shift kit, b&m star shifter
-4.33 gears, 35 spline axles, swarr auto rear
-Mickey Thompson ET Street Drag Radials 295/65/15
-Full interior
It has not been to the track yet but will be this summer. What do you think she would run as of now? I think high 11's low 12's?
Can I get my car to run low 11's with just a cam? I know the one i have now is a small cam. What size should i be looking at? Just looking for some opinions. Thanks. "
personally Id sell that intake or throw that intake in the nearest dumpster
ID USE THIS INTAKE if you have the hood clearance
http://www.summitracing.com/parts/HLY-300-110/
every choice you makes a compromise in some way,but assuming you want to retain as much as you can of the current parts list,
ID BE SELECTING A SOLID ROLLER CAM, an 1.6:1 roller rockers and swapping to the correct valve springs and checking clearances , and get any required head machine work done, ID have the heads bowl area and ports cleaned up, and get a 3 angle valve job, and ID buy a good rocker stud girdle, and a 4400 rpm stall converter , (contact a good converter manufacturer and discuss whats correct) ,and good slicks, ID also think about adding a 150 hp nitrous plate system, yes HYPEREUTECTIC pistons and high rpms are not a great idea with nitrous, but careful tuning , limiting the shot to 75-100hp,and keeping the mix rich and staying under about 6300rpm should let you get by, if you don,t go with the mild nitrous shot get a RPM air gap intake, but the nitrous boost will help.
that way you concentrate on maximizing the potential power in the 4200rpm-6300rpm power band
http://www.summitracing.com/parts/EDL-70050/
http://www.summitracing.com/parts/LUN-91656/?rtype=10
viewtopic.php?f=52&t=5078
youll need race octane fuel
http://www.leesracing.com/fuelspec/g7.html
in an ideal RACE combo your power curve would look similar to this and youll have a converter stall speed and rear gear ratio and tire diam. that allows the engine to stay in (in this case the 4000-6500rpm power band) but thats hardly ideal in a street car engine combo
but CALL THE CAM COMPANY OF YOUR CHOICE FOR MORE INFO