Super trick 1 x 4 single plane intake mods

[@PeggyParrow]

I think i saw this hump that you describe in the intakes,years ago in two differant ones, an old WEIAND, number 7546, and also in an EDELBROCK street dominator, the street dominator went through several changes, saw some with flat floors also !thanks for helping us poor people do most of our own work to achive great results !

[@kevinjennische8209]

Thanks!

[@terryheimerl8674]

Yet another great and informative video. Thank you David. Terry from Australia.

[@bjr2379]

Great information David.

[@dondotterer24]

Thanks DV .You already answered some of my questions. Looking forward to seeing the next video!

[@tonynorris7042]

I Learn something new every time I watch your Videos ! Loads of fun. I hope to apply some of the KNOLIGE in a build! Thank you!

[@GInUsPowered]

It says Vizard but you must be a Wizard!

[@NickGreiner1988]

Why zard?

[@cjespers]

Thanks for another kick ass video. Well done. Keep em coming.

[@hendo337]

I know for a fact that a 9.5" Windsor with good heads does significantly better with a singke olane intake than SBCs do. The peak torque occurs a little higher however the peaknis generally the same or even higher and the hp takes off like a rocket past 6200rpms. With TFS 190cc 11R heads a 0.030" over 357ci Windsor can make 595hp with a single plane, huge cam, tons of compression. Even a 393/408/418/427 small bore 9.5" Windsor still benefits from a single plane, the larger engine just requires less rpms and compression. If one used 205cc 11Rs over 600hp is possible, even within the limits of 93 pump gas, just with a Super Victor or similar shelf big single plane. The 9.5" Windsor is more in the league of an LS engine as long as ypu are willing to run good heads and a roller cam, a factory 4" SBC block is displacement limited to 355-388ci and takes much more racy parts, huge cams, high compression, race fuel to hang and usually a pump gas SBC like that performs better with a quality dual plane.

[@rayowens4355]

Great info David! I learn something new with every video!

[@MrScotty600]

Showing how how its done and sharing ...awesome!

[@lcxu1051]

Can't wait to see this. I'm looking at running a single plane 4150 style manifold with PFI on an LS1/6 engine.

[@joehohman8586]

Both 5.7 L are you running ls6 block w/ ls1 heads. Or ls 1 block w/ ls6 heads?

[@lcxu1051]

@joehohman8586 ls6 block and heads are 243 from ls2.

[@joehohman8586]

​@lcxu1051 great combination I also have a ls6 from a 05 ctsv. Will eventually be in a 71 nova. Best of luck you sir

[@hendo337]

As long as you have good heads, high compression and a huge cam the single plane will make a lot more peak power. On those smaller 346ci LS you will lose tons of low-mid range tq compared to long runner intakes like a FAST or Hi-Ram unless its a very light, deep gears, high stall application it will likely not perform as well without the tq. The single plane is going to be much better with at least a 383 stroker or better yet a 6L or 6.2L 4"-4.065"+ bore basis engine. A 408 like Eric Weingartner's with good heads and a single plane can make 670hp.

[@lcxu1051]

@hendo337 11.15 static comp 8.54 dynamic compression 3.46 diff gears 23 to 2400 stall converter 25" tyre 1250kg weight car. Long tube headers 227 235 @50 277 289 .006 cam 6.3" rods 6cc dome top pistons. 11 degrees of overlap @50

[@andykerr3803]

Hoping to see some dimpling of the passages in this video 👍 Fun stuff 😊

[@atheplummer]

I've ran a 468BBC in dirt sportsman class. Had a strip dominator intake, and one of those trick spacers on it. I was limited to a 1" by rules, and had to run a 500 Holley 2BBL. My engine make 632 lb/ft torque at 3200, and 438hp at 5700, before the engine over ran the carb capabilities. I always envisioned making a 'turtle' to glue into the floor of that intake, to do exactly what you are talking about here. Never got around to it, but if I had, I'd have screwed it up, not thinking about runner length & air velocity in those center cylinders. Because I had to run such a small carb on such a big engine, I always thought about creating a vacuum leak on the carb, and just fatten up the carb to accommodate the intended vacuum leak... but again, never did. Probably because I didn't need too. That engine was a monster coming off the corner.

[@andysteele4056]

I have never head of people running big blocks chevys in dirt circle track racing and I always wondered why. Glad you're out there representing.

[@natelorimer8567]

Thank you. When we get to see Mike Jones? He is great in Speedtalk.

[@bobbywilliams5657]

Thank you for sharing the knowledge . This is good information 🙏💪💪💪

[@middleclassthrash]

I appreciate this content.

[@derrelcarter9401]

I remember Roger Helgesen doing the elephant ears on the old Weaind 7525 Team G EGR intake with the Qjet carb pad.

[@troypatterson3673]

Great information thank you for sharing

[@bobwhite4344]

very interesting vid.

[@Z06Doug]

Wow, I have thought the same thing for years

[@christianarchibald4029]

Hi David, I've got p76 motor with longer length boxer (4 SU) intake, should I be modifying the 5-7 junction wall to favour no 5...given that the su carb for those cylinders will see no induction for 450 degrees... Keep up the good work. Clyde, in Glasgow

[@markt9438]

With the technology we have today it shouldn't be hard this week every part of the motor to bring out its best performance

[@alessandroghizzo972]

Good food for the brain 👌

[@lcxu1051]

Do the modifications to the base of the plenum work on PFI engines? IE holley midrise 300-137 with 2" spacer and 1000cfm throttle body

[@lukesimeon5756]

Very interesting thanks

[@joe-hp4nk]

Is it the black ice cams from Howards that make them durable?

[@NickGreiner1988]

What makes a manifold single dual or whatever-plane?

[@Phantom-mk4kp]

Single plane,all runners are fed from the one plenum area, dual plane the runners are grouped together into 2 groups of 4 , each group has its own plenum area

[@WestcoastCreole]

Ill buy that bbc intake manifold from you

[@JamesBower-l9d]

That’s a great buy !!!

[@andykerr3803]

You must have a real chunk of a BB! 550cid?

[@WestcoastCreole]

I@@andykerr3803I'm building a tall deck 525 and a 598 both street motors

[@musclebone7875]

​@@andykerr3803you can run it on a 496 tall deck

[@andysteele4056]

For risk of being redundant, it's for a tall deck if you didn't catch that.

[@deanstevenson6527]

🥝✔️🇳🇿🔚

[@robertmay1506]

Are you talking about a Ford or Chevy

[@mrporsche4236]

Thats why cleveland 4v heads are terrible

[@yoosrid]

Thanks!

[@DavidVizard]

Actually we need to be thanking you!