THE BEST BBC CAM EVER MADE? 1 CAM WORKS WITH LOW COMPRESSION, TUNNEL RAMS, NOS AND BOOST? BUT HOW?

BEHOLD, 1 CAM TO RULE THEM ALL! CAN THE SAME (BIG) SOLID ROLLER BBC CAM REALLY WORK WITH LOW COMPRESSION, NITROUS OXIDE, TUNNEL RAMS (TWO DIFFERENT VERSIONS) AND TWO DIFFERENT SUPERCHARGERS? IS THIS SOME KIND OF VALVE-EVENT WIZARDRY? NO, IT'S JUST COMMON SENSE! IS IT EVEN POSSIBLE THAT THE SAME CAM WILL WORK ON ALL THESE BBC APPLICATIONS? CHECK OUT THIS VIDEO WHERE I RAN THE SAME (SHELF) CAM ON A BIG BLOCK IN ALL THESE DIFFERENT CONFIGURATIONS. BUT RICHARD, I THOUGHT YOU HAVE TO RUN HIGH COMPRESSION WITH BIG ROLLER CAMS, OR NITROUS SPECIFIC CAMS, OR TUNNEL RAM SPECIFIC CAMS OR EVEN BLOWER SPECIFIC CAMS? SEE FOR YOURSELF WHAT WORKS!

[montycrain]

I wish you would dyno one of Chevy ZZ427 crate engines . Chevy says its a modern version of the old second gen L-88 they sold as a crate engine back in the 70s and 80s. It’s rated at 480 but I’ve heard most hit 530 on a engine dyno. It actually comes with a HEI ignition, manifold and a pretty small Holly 770 cfm 4 barrel carb.

[jasonbailey]

Hey Richard I would like to see the tunnel ram bbc with turbo boost and 2 carbs FTW

[erikrunas]

My takeaway is this BBC would be a great daily driver engine. 8.9 compression sounds pump gas friendly. Or toss it in a '57 Chevy or '67 C-10 and drag race with some nitrous. Great video.

[stephencostello]

Hey Richard. The inspiration for my 540 twin 80mm turbo motor. Wilson did my manifold as well. 550lb injectors. Can't wait to share my hp numbers when it's done.

[jimkillen]

I always appreciate your videos. If you want I been told that you can run solid roller lifters on a hydraulic roller cam at low lash . Might be a interesting test on engines that were spun up to a higher rpm . You probably already done that . May not be any different. I use to change my lash a bit on my 302 and see how it effects the torque curve. It did make a difference

[chrishansen]

hey Richard, would you be interested in testing full length exhausts? H pipes vs X pipes and everything unequal length and equal big and small it would do a lot to clear up exhaust myths and see how different types of exhaust effect the power curve i see alot of things online like "our catback produces an extra 20HP compared too stock" and that just seems like hog wash to me

[mikealdag]

Would love to see a video on using such a large cam on a blown bbc that is a basic 454

[ManOfValor.]

It will also help to know how much advance is ground into the camshafts you are testing and do some cam testing with same duration & lift but ground with different advance 2, 4, 6 degrees of advance.

[airfancon]

Impressive that cam can ask for part#?

[pmd]

Lift issues can happen with to big a cam. Valves hitting the piston that is. Cams with more then 550 lift with flatops can be an issue.its safer to run a moderate spec cam all around. When in doubt, go smaller.

For a stock engine I'd never go bigger then a 274 cam. Too big a cam can cause clearence issues, much more stall needed for the converter. Sluggish low end power. Radical idle, too high an idle, vacuum issues. Valvetrain binding. Piston clearencing needed. Cam lobes coming close to rod bolts. Cam lobe fitting in cam bore issues. Etc

[pmd]

My thoughts,
A 9 second car back in the day was rare back in the late 1980s. Everyone wanted 1000 hp, a 9 second car. We couldn't do more then about 600 on our best car. Pump gas was like 91 max.
Twin turbos set to about 10 psi. And a 225 nos plate or manifold injected would yield about 700 to 800 on a 427.

At the strip we had 1250 hp cars. And 8 second passes.
600 to 650 off the motors say 540 cid and a 600 burst of n o s. And they were street cars. 10.5.1 comp. 91 oct gas. 454, 496, 427 cid. We had diesal turbos that could make about 1000 hp in some rare cases. No one really ran alcohol on street cars back then or 112 oct fuel. We had aircraft fuel 100 oct. We had used mostly nos and 6 71 superchargers.

[pmd]

When you upgrade your cam, better exaust, more compression or boost, numratically higher differential gears, more t c stall needed.

Best highway gears.
3.25 to 3.50 is good. 3.73 to 4.11 with od.
Worse on gas 4.30 to 5.13.

[jasonbirch]

Damn. I would've liked to have seen a turbo setup on here. I'll bet with the right setup it would beat them both. Or at least considerally close the gap, low and high rpm.

[MrJosephfunk]

Damn Richard it's like you know I'm building a big block and looking for ideas 💡

[brentspence]

One cam to rule them all, one cam to find them, One cam to bring them all, and in the chopness bind them

[pmd]

I've noticed that many cams have a very limited rpm range and the racing ones are worse. Most cams with more then 278 to 284 seem to lose torque on the dyno. Unless you have a top end racing motor with a 320 roller cam, 400 to 450 cfm heads 16.1 comp.

I am somewhat of a cam expert. We had the best luck with a good old 274 to 278 at full duration cam. And it worked with lots of engine combos.

[andrewthomas]

I'd like to see that camshaft in a 468... can you make it happen

[mattb]

Very interested in these big block chevy videos now that I have swapped a junk yard 454 into my k1500. Thank you for the info, would love to hear some input on how to get 600hp on a budget!

[pmd]

Big cams are known to limit the powerband range. Some about 5400 to 8500 rpm.

[bryangoff]

Thank you sir for all your great information! I see you have a valve relief on this motor and the fairly large cam, do you think the big cam would work (PVC) on a stock bottom end gen 6 bbc or would I need new pistons with reliefs?