someone plz run a virtual dyno on my setup
406 cu inch smallblock
12:1 compression
titanium rods
6800 rpm (should go more but this is a safe RPM)
cam specs:
290 intake/290 exhaust
adv duration @.050
222intake/222 exhaust
valve lift .477 intake/.477 exhaust
lobe c/l 114
1:6 roller rockers
stud girdle
brodix spec heads part number (SPCH)
head specs:
215 cc intake ports
2.080 intake valves
1.60 exhaust valves
super victor intake (single plane)
3600 pound car
190 pound driver
3:73 rear gear ratio
3000 stall converter
27.0 inch tall tires
12 inch wide (i know cam could be bigger)

It could more than use more cam......it drastically needs more cam!

One thing, if you race it as is......definitely do not run it up to 6800 revs. Not that its unsafe....it sounds very stout and capable of turning some R's. However....Id be real surprised to see that camshaft peaking better than 5800 revs. So, taking it all the way to 6800 is just slowing you down. At best that thing ought to be shifted at 6100-6200. It may feel like it pulls fine all the way up there.....but race it and shift it closer to 6000 revs and the timeslips will tell the truth.

As far as dyno sims....most are unreliable to begin with. And with this type of build.....there is lots of room for error. All the higher breathing parts(like your heads, intake, compression)...will sorta spit out a false sense of rpm/horsepower that the cam itself isnt really capable of.

Having played with some sims in the past...it just dont catch these things. Build a stock 350 and put a dominator carb on top and it just shows more horsepower in the sim. But in reality...youd smother a stock 350 with a big dominator. The dyno sims have a hard time seeing true airspeed velocity, vacuum signal and all that jazz that really dictates how an engine acts in real life.

Id expect a sim to show more rpm and horsepower than you should actually expect to see. I suppose maybe some are smarter than others....but its just been my experience that the sims Ive used have trouble seeing "reality".

Anyhow.....I dont see a problem with this thing having the guts to go real low 12's if not 11's, and truth be told, your combo has potential to end up being a real consistant bracket racer from the get go. The mildish converter and big heads/intake will soften up launch so you probably wont have quite the traction probs that you "could" have. So if you drive it the same every time......it will be easy to keep the holeshot pretty consistent every time with good tires. It shouldnt be as sensitive to a marginal track as some other cars are.

And if you wanna make this thing run hard....Id suggest solid roller....at least a solid flat tappet thats a fair shade larger! For a more serious street strip deal Id go roller, 247/251 at .050 on a 110 with about a 3900-4300 flash stall, quality converter. You also have the room to go a bit larger if you choose. Now it will start turning north of 6500 revs and continue to power.

[quote=greg moreira;884018]It could more than use more cam......it drastically needs more cam!

I have never seen a combo that needs more cam then this one :yes:

the 1:6 rockers move up the lift to just about .500
and changes the profile of the cam making it a bit more aggressive.
this motor came out of IMOD race car and were restricted to that cam profile.
seems streetable though.