7700-RPM JUNKYARD 5.3L LS INTAKE TEST. HI RAM VS LOW RAM-WHICH HOLLEY LS INTAKE MAKES THE MOST HP?

WHAT IS THE BEST LS INTAKE? WHAT LS INTAKE MAKES THE MOST POWER? HOW MUCH POWER DOES THE HOLLEY HI RAM INTAKE MAKE? HOW MUCH POWER DOES THE HOLLEY LOW RAM INTAKE MAKE? WHICH INTAKE MAKES MORE POWER, THE HI RAM OR THE LOW RAM? HOW MUCH DOES RUNNER LENGTH MATTER ON AN INTAKE? SHOULD I RUN A SHORT-RUNNER INTAKE ON MY JUNKYARD LS MOTOR? CHECK OUT THIS VIDEO WHERE I COMPARED THE LONG(ER) RUNNER HOLLEY HI RAM TO THE SHORT(ER) RUNNER LOW RAM ON A MODIFIED JUNKYAD L33 5.3L. EQUIPPED WITH A BTR STAGE 4 LS3 CAM AND PORTED TFS 220 HEADS, THE 5.3L MADE PEAK POWER UP AT 7500 RPM, MAKING IT PERFECT FOR THIS INTAKE SHOOTOUT!

[dangerds]

The most gangster move pulling that lid off at the start of the run, you a real one 💯

[WildEngineering]

I absolutely love that you're willing to try "stupid"(read as unconventional) things on the dyno like removing the lid of the intake.

[charlesmyers]

That's why the active intake in the Dodge 392 switches to short runners above 4000rpm.

[davidgagliardo]

In my '57 Chevy, I have what started out as a Chevy Performance crate LS3, and added a Texas Speed Stage 3 NA cam, the Holley Hi-Ram, and 1-3/4" long tube headers. Together with 4.11 gears and a Circle D 4, 200 stall converter, it runs great on the street, especially when I stand on the gas. :)

[EzequielRobles_]

I just bought a 2003 Cateye with a 5.3 in it and having no previous engine knowledge besides routine maintenance, i can't thank you enough for your videos! Goal is to make her a pretty quick race truck, but i'm starting out slow and working my way up. subscribed!

[jackruss]

Where’s the lid off chart? That’s a very interesting component to this comparison- as the air doesn’t like to turn. I’ll bet it had some remarkable results!

[brianwills]

I just picked up this high-rise for my cbm ls. No hood on this one, it's a baja bug. This thing rips🤙

[kellyheath]

Now that you did the no lid test, I want a holdener powered variable length intake runner test. Pull the lid, slap in place runner extensions and then pull those as revs pass 5500 or 6k.

[knowplay]

Always playing with the cathedral port motors...while us LS3 guys wanna know how this would work on our rec ports!! LoL!!! Great video!!!

[dustyscott]

Keep up the good work always love watching your videos I’m always learning from you and I’ve very thankful for that. Happy holidays to u and yours

[dustyscott]

I’d be interested to see what the stock intake does in comparison to these on the hp and torque curve down low, as well as sheet metal intakes vs cast

[baby-sharkgto]

I love the way the high ram and even the low ram look, I love the way the sheet metal intakes look… but I am loyal to the FAST because it has gobs more of torque and power over them. Gobs more.

[S]

The low ram is very similar to the stock manifolds on my Buick V6s, not idea for stock to medium cams but decent for the bigger cams. I have a cam set aside for a later project that is 262/262 deg, 303/303 advertised, but even then it's still a bit on the short side for the ideal runner length.

But otherwise it's very well designed with a good area for the runners to support pretty wild builds, tapered runner as well. The major difference to this Holley though is the plenum on mine are a sideways oval log-ish plenum which allowed the top side of the tapper to extend all the way to the top of the plenum, while the bottom side is rather short like the Holley low ram. I can't recall exactly on the length of the runner, but the middle (average length) from back of valve to the opening in the plenum is 245mm. Mine is actually called in the community the high ram, there is a even lower ram version used in the previous gen LN3.

[troy]

Once again class has been very interesting thank you very much teacher and I shall continue To stay close attentive.😀

[jamesharrison]

I'm thinking the tall ram will produce peak torque lower in the RPM range.

[christapherwainscott]

Would be interesting to see a comparison with the "sandwich" style intercoolers (tick performance etc.)

[rolandopena]

Hey Richard are you ever going to revisit the l28et? Maybe dyno and test upgrades. The Datsun guys would really appreciate it 😂

[overcastfriday]

If your toy is a Pantera or Mangusta, you can play around with tall intake manifolds, GMC style blowers, etc. The engine is behind the driver so a "tall" engine is not an aerodynamic or aesthetic concern.

[malamri]

The high ram is good performing but fitment is usually an issue

[utahcountypicazospage]

I would of loved to see stock truck manifold in between just to see numbers