PUMP GAS TORQUE FOR TOWING PART 2-SUPERCHARGED 496 STROKER. OUR BBC HUNT FOR GRUNT GETS MORE TORQUE!

[@sHoRtBuSseR]

That torque "curve" ,if you can even call it that, is absolutely phenomenal. Just gobs of torque throughout the entire RPM range. Gonna be one of those that just slams you into the seat and doesn't let go. Great work!

[@bri-manhunter2654]

That’s the best kind💪🏻

[@merylpelosi8485]

I remember having to drive a then new '76 1 ton GMC 454 pulling a gooseneck flatbed trailer grossing 33,000 pounds out of Denver. It took 9 hours to make it 350 miles to Rock Springs, Wyo. I would have loved to have had even your N/A 496.

[@andyharman3022]

I've made that run in the last few years. Can't imagine what the roads were like in 1976. Making some of those climbs with a naturally aspirated engine must have been memorable. And getting down the hills even more so. If the truck was new at the start of the day, it wasn't new after that trip!

[@TK-eg7eg]

Coming up on the 20th anniversary of that dyno test!!!

[@dadgarage7966]

That blower will shine at high elevations. Only thing is it'll consume fuel like a WWII bomber. Not so much for cost but for range. Stopping every two hours eats a lot of time.

[@dennisyoung4631]

*Cap’n TORQUE.*

[@deansapp4635]

That torque is as flat as a table, I love it

[@tedgay8427]

I would have liked to see what the N/A version did with 10.5:1 compression. That would probably be a great street engine combo.

[@bri-manhunter2654]

It would just make more power everywhere.

[@tedgay8427]

@@bri-manhunter2654 Exactly!

[@bigrich7026]

At work but gonna check it out later tonight! A blown tow rig is usually a head gasket problem! 😅

[@TheBatmeat]

Only at higher boost levels. 4-7lbs won’t do a thing to your head gaskets.

[@lolzaga1661]

Hello everyone, I always wanted to build/rebuild an engine. I picked up a junkyard gen 3 5.3ls engine. I purchased few parts like: " Mahle 5.3 flat top forged pistons, " gen 4 rods, " 862 heads, " .625 max lift springs, " FAST LSXR 102mm Intake, and some other stuff. Whereas I'm stuck on what camshaft and lifters I should choose My goal is to make as much HP N/A as possible. The options for the camshaft that I have are : 1) "COMP Cams 54-602-11 Big Mutha' Thumpr" 2) "Comp Cams 54-703-11 Stage 2 Thumpr Cam" 3) "Competition Cams 54-408-11 XFI RPM" 4) "GM Performance Parts Camshaft, LS6 Camshaft, Hydraulic Roller, Lift 0.550/0.550" These are the cams and only these I can get for free from a friend, the question is which one would allow me to make the most HP. Thank You everyone for reading

[@11SpeedFreek11]

How heavy is your vehicle, tow rig?

[@lolzaga1661]

@@11SpeedFreek11 well, i'm putting the engine into a 1998 BMW e36 M3, so around 3,000 lb

[@exploranator]

I have a suggestion for a video: Similar motor where t he only thing you alter physically is to change the compression from race-gas level down to "we can thrown any pulley on this blower we want" levels and see what the timing advances and boost levels are you can use, and the end result in power production.

[@richardholdener1727]

HOW DO YOU SUGGEST WE CHANGE THE COMPRESSION WITHOUT CHANGING SOMETHING ELSE THAT ALSO CHANGES POWER? PLUS, THE ONLY WAY TO FIND THE LIMITS YOU DISCUSS ARE WITH KNOCK SENSORS-NO GOTS.

[@exploranator]

@@richardholdener1727 I don't know. But, a series of copper head gaskets or some different pistons can change compression. I guess the MAIN change is the compression, and different pullies and timing, and knock sensors would be needed, yes, but I noticed no one has ever explored the limits of timing and boost by widely varying the compression ratio.

[@grandmasmalibu]

I definitely need an 800 HP tow motor. I'm gonna tow my house, pool and hot tub with me on vacation.

[@brianlafollette7530]

So many chevys that 496 would be fun in!

[@shadowopsairman1583]

Look up Ugly Truck.

[@curtisendicott5989]

The 420 was originally designed for a small block even though they make big block intake I ran one for 20 years

[@CQBWarfighter]

This makes me want to build a big block so bad.

[@scotttimpany2845]

Looks like there was a drive-by during the assembly of this engine.

[@jimsmith1952]

I have an 8-71

[@TheBatmeat]

You said something I’ve never heard before. Flat tappet lifters and a hydraulic roller cam doesn’t need a break in…..never heard this before. Can you elaborate?

[@richardholdener1727]

I said hydraulic roller cams and lifters don't need a breal in

[@butcherbaker4258]

You could put together a motor like this or just throw a turbo on a 6 L and have just as much horsepower and probably just as much torque

[@bri-manhunter2654]

He’s done multiple videos to include what you just suggested. Type it in the search box,

[@FINfinFINfinFINfin]

Or drop in a new 1,000 ft lbs diesel and get 16 mpg too.

[@jimsmith1952]

Im going to e.85.

[@garyhosier4765]

At 8.2 to 1 you could have run 87-88 octane on NA? Correct? And gotten the same power?

[@richardholdener1727]

YES ON THE NA MOTOR

[@TheeAbstractHero]

I was going to make a comment about keeping the higher compression and running E85, but after having looked at the Alternative Fuels Data Center map it is just not realistic depending on your route. I didn't realize we were so spoiled by pump E85 here in the Midwest.

[@garyhosier4765]

I’ve never run E85 so I don’t know much about it but as an everyday driver regular gas would help keep cost down so you could enjoy your car and still with that torque and horse power have more than you need from light to light.

[@TheeAbstractHero]

@@garyhosier4765 Not sure how familiar you are with E85, so here's the quick breakdown of it. E85 is typically sold at the pump somewhere between 50-85% ethanol to gasoline. It tends to be cheaper than 87 octane in my area. Last I checked E85 was $2.59, 87 Octane was about $3.54 at the same station. Ethanol blended fuels have a higher octane rating (100-105 according to Iowa Renewable Fuels Association), but ethanol has a lower energy density than gasoline. You can push the engine harder due to the higher knock resistance, at the cost of increased fuel consumption. Pump E85 can have some tuning complexities associated with it due to the variability in blend from station to station, so a lot of folks either test their fuel at the pump (no thanks) or run a flex fuel sensor. With the flex fuel sensor you can tune using the data that the sensor provides. You can buy Barrels of E85 from many different race fuel manufacturers, but in the context of installing the engine in a truck that defeats the purpose imo.

[@bbcnova56]

Dyno video? Miss the waaaaaaaa

[@gagedressen8335]

What is the estimated cost of the 496 with the 420 on it?

[@jmflournoy386]

running comments how long rods, I would not bore .060, what was the quench, looks like the divider was cut ,.anyway did you track your inlet temp? we ran intercoolers in the boat did you mention your timing veery good

[@pmd7771969]

Richard missed the mark on this build

[@cptstowe1]

Where's all the 2009 to present 5.7 hemi multiple camshaft testing??

[@richardholdener1727]

I give up...where?

[@MrZX1206]

What changed that allows more compression with boost? I remember turbo Dodge 2.2s had 8.1:1 and magazine 350 never went past 8.5:1.

[@andyharman3022]

Modern engines have better combustion chambers that produce a faster burn and require less spark advance.

[@menogusta9829]

Combustion chamber/piston design, better engine managment, most pump gas is e10 now... among a ton of other more minor improvements and new knowledge.

[@briannietsch1859]

How can I get your help on my motor having problems

[@richardholdener1727]

ASK AWAY OR JOIN THE LIVE FEED

[@jimsmith1952]

I have a 468. What heads would you suggest?

[@richardholdener1727]

AFR

[@jeremybelcher6681]

How often are you running at 3500+ rpm with a towing motor?

[@shadowopsairman1583]

Not at all as it burns more fuel

[@JesusRoseAgain]

Passing on downshift will run a 454 3000-4000 RPM easily, just one example.

[@pmd7771969]

Gas mileage will suffer with 2 carbs and mega blower

[@techs1smh13]

Just a little 😂

[@shadowopsairman1583]

Ok and?

[@468bbccapri]

What happened to the 396? Did I miss something or did you give up?

[@richardholdener1727]

going back together

[@468bbccapri]

@@richardholdener1727 Oh man that's great I hope you're going to show the non believers what one of these can do. Thanks

[@mushmouth]

Why do you run such restricted exhaust all the time? And with mufflers.... Wow

[@richardholdener1727]

zero power restriction on that exhaust