Thread: Dyno-Sim combinations

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The way you've built it, here are the results....
SCR 9.01:1
DCR on KB calc 8.187:1
You didn't list the squish and I didn't reverse engineer it, but if you're around 0.040", this DCR will work fine on junk pump gas, but is a little light. I'd rather see 8.250-8.750 on the KB calc.
RPM HP TQ
1000 59 310
1500 103 360
2000 155 406
2500 200 420
3000 237 416
3500 274 411
4000 304 398
4500 317 370
5000 312 328
Peak volumetric efficiency 80.4% @3500
Peak BMEP pressure 178.8 @2500
I'm seeing this as the perfect daily driver motor. Excellent torque for moving that Camaro away from stop signs and lights and should make excellent manifold vacuum for accessories such as power brakes and operate detonation-free on crap pump gas. The hp follows the specs given by Comp for the cam, RPM range 1200-4500.
08-410-8 - Magnum

I'm going to bump the compression up one notch, retard the same cam 4 degrees and still be able to operate on pump gas with iron heads.
Substitute 12cc pistons instead of the 18cc units, making a SCR of 9.58:1 and a DCR of 8.527:1 on the KB calc, smack in the middle of the range that I like to see.
Cam timing is IO-7, IC33, EO33, EC-7
RPM HP TQ
1000 60 315
1500 104 365
2000 157 413
2500 204 430
3000 243 426
3500 283 424
4000 317 416
4500 338 394
5000 343 361
5500 318 304
Peak volumetric efficiency 81.4% @4000
Peak BMEP pressure 183.0 @2500
Intake duration 206
Exhaust duration 206
Intake centerline 106
Exhaust centerline 114
Lobe separation angle 110
Valve overlap @0.050 -14
Picked up 26 hp and 10 ft/lbs of torque with a "flat as a pool table" torque curve. I resisted using more cam in this tweaked version because the short cam is just right for a daily driver with stock converter and gears. It just needed some tweaking. Practically no change was noted when changing to 1.6 rockers and the combination lost power using an RPM intake manifold. More carb will make more power, but I'd rather have the small primary throttle bores for off-idle response and driveability and possibly a little more fuel mileage.