Kidnova

That does sound optimistic. Too good to be true?? Can you be trusted with that much HP, Dave

Crazyhorse

I'm assuming macDad has stock Merc manifolds so I entered small-tube headers with mufflers and compared the cams from there. Yeah, you can get some really impressive numbers by manipulating the exhaust but the process I used was to compare cams using the same factors in the other categories.

blue thunder

I'm with you Crazyhorse. You just isolate and change one variable and evaluate relative impact. The actual hp/torque values may not be accurate.

I'm sure I can find something to do with that extra torque/hp kidnova Prolly break a bunch of chit

Dave

tmdog

What kind of particular parts was entered,such as heads, lifter ratio, intake and carb? I assume we are talking SBC. Some awesome figures you spit out there.

Crazyhorse

B.T. that's correct. I'm amazed at how close the DD numbers are as compared to actual corrected dyno results though. My own supercharged 509 (I only ran one on the dyno) was within just a couple horsepower and torque throughout the chart.
tmdog, these are all big-blocks we're looking at on this particular thread but the small-blocks I've run through the DD have looked pretty good too.

traviss

I put my new setup for my small block into the DD2000 and it spit out 571 hp at 6000 rpm and 526 lbs trq around 5000 rpm If memory serves me right.


Sorry back to big blocks.. I've been trying to drive crazyhorse nuts

blue thunder

If I put up my specs Crazyhorse would you sanity check my hp/torque results? I am getting over 500hp and 550ft-lbs of torque with my parts on dd2000 and that seems high. I've felt like I made an error somewhere, but not sure.

Let me know and I will post them.

Dave

Crazyhorse

Believe me, it's not that hard to get 500 hp out of a 454. We do it with all Federal Mogul parts, even the camshaft. Sure, post all the info and I'll run it through. be particular with cylinder head info, compression ratio, carb and intake design. Cam data needs to have all the opening and closing event timing, as well as lift withthe rockers you'll use. Don't forget exhaust.

blue thunder

Here it is Crazyhorse. Let me know if I missed anything.

Displacement: 468
Heads: rect port edelbrock rpm performer 2.19/1.88
Carb: 800cfm dp
Intakes: Edelbrcok rpm performer dual plane
pistons: flat tops w/ valve notches
Comp Ratio: 8:4 as calculated on dd2000
Cam: Lift 544/564 dur 226/234 @.050
valve timing @.006 IVO 28 IVC 62
EVO 74 EVC 24
Cam ground with 4*advance and installed straight up.
Cylinders were bore notched to unshroud valves.
MSD amplifier w/ tbolt IV ignition.
Keith Eickert aluminum full runner exhaust



Dave

dyno

BT that looks like 500 hp easy!