Carb single plane

[sseeya]

Single plane guys, what manifold are you guys using? Victor Jr? Super Vic? Anybody ever use, or consider using a Holley Strip Dominator?

[joelster]

I'm running a Professional Product Super Hurricane, with a custom elbow. From what I've heard, this manifold is down about 15hp from a Super Vic on a 575-600hp engine.

[popo8]

Holy crap!!! joelster!!!

Im not only an LTXtech member... Im also the Owner.

[firebird_1995]

Victor Jr here. I've got one for sale if you're looking for one

Sent from my SM-G900V using Tapatalk

[sseeya]

Victor Jr here. I've got one for sale if you're looking for one

Sent from my SM-G900V using Tapatalk

No thanks, I have a converted Victor Jr. I think I'm leaving power on the table, though.

[firebird_1995]

I wouldn't think you're leaving much if any on the table then.

Sent from my SM-G900V using Tapatalk

[joelster]

It would be wise to do a search on high-hp N/A engines in the sbc family. Find out what the carb guys that run bigger cube sbc's run. Ab LT1 is basically the same thing.

[shownomercy]

Vic Jr here that LE worked his magic on. Choking the shit out of it with a ultra low profile.

#LT1ownerlogic

[sseeya]

It would be wise to do a search on high-hp N/A engines in the sbc family. Find out what the carb guys that run bigger cube sbc's run. Ab LT1 is basically the same thing.

That's kinda why I was asking. I know several guys running big inch SBC's and they are all running intake manifolds that are, for lack of a better term, bigger, than the Victor Jr. IE: Super Vic II's or Holley Strip Dominators. In an old Car Craft article where they did a dyno comparison of 19 single planes, the Super Vic II made 26hp and 10lb/ft more than the Victor Jr. as well as much better average torque., and the Holley was very close to the Super Vic.

My combo is a Ellwein Engines, 396 LT1 with Trickflow 212cc 21* Heads by Advance Inductions with an AI custom solid roller cam, and a converted Victor Jr, with a 750 Holley. It made 640hp@6800 w/573lb/ft@5100 at the flywheel.

[joelster]

I'd bet money you'd pick up power with a bigger carb and a Super Vic. 640hp is a ton as it sits.

[Joe O]

Peak hp may improve , but torque will suffer. In theory sounds great but unless you running a big sbc (big as in 420+) you may be disappointed at the outcome. Hence , why I never converted a super Vic. Looking for plenum volume or plenum velocity? Kind of like heads , big flow numbers mean jack at .700 if .200-.500 suffer. I mean I ran 9.34 with heads that only flowed 304cfm peak ,although that was at .500 lift . Just giving a example : of sometimes you give up one place to maybe gain just. Little somewhere else. If you did do the swap by all means give post up any new results.....

[myltwon]

What heads did you run Joe?

[Joe O]

What heads did you run Joe?Afr 227's ( not out of box raw casting ported by my buddy EB

[sseeya]

Peak hp may improve , but torque will suffer. In theory sounds great but unless you running a big sbc (big as in 420+) you may be disappointed at the outcome. Hence , why I never converted a super Vic. Looking for plenum volume or plenum velocity? Kind of like heads , big flow numbers mean jack at .700 if .200-.500 suffer. I mean I ran 9.34 with heads that only flowed 304cfm peak ,although that was at .500 lift . Just giving a example : of sometimes you give up one place to maybe gain just. Little somewhere else. If you did do the swap by all means give post up any new results.....

Thanks for the post Joe. I haven't swapped yet, but it's wintertime here in the Northeast. I have a Holley Strip Dominator being worked on right now. I will post up results, good or bad, when springtime rolls around. The good news with intake manifold swaps, is they aren't difficult to undo if they don't work....lol

[Joe O]

Absolutely.. correct for as easy of a swap it is .. as I said I'm not saying you won't gain... your combo may want more plenum volume.. I've seen some combos lose a low and midrange torque.. depends really on your whole setup. How it would affect 1 vs. another.. quite possible you could find a golden egg.

[joelster]

You have to factor in what you are using the car for as well. If it's a drag car with a big converter say 5000+, then sacrificing some torque down low won't make a bit of difference.

[sseeya]

You have to factor in what you are using the car for as well. If it's a drag car with a big converter say 5000+, then sacrificing some torque down low won't make a bit of difference.

That's exactly what it is. It's a drag race only car with a converter that stalls around 5 grand or so. On the dyno the motor made peak torque at 5100 with the Victor Jr

[Joe O]

Sorry, but can I ask why you went with Carbureted?

[Joe O]

That's exactly what it is. It's a drag race only car with a converter that stalls around 5 grand or so. On the dyno the motor made peak torque at 5100 with the Victor Jr
That's kind of what I was getting at , that and if you had a high rpm cam selection.

[sseeya]

Sorry, but can I ask why you went with Carbureted?

Main reason is because it's a race only vehicle and I have a buddy who's really good with carbs. At the time it was just easier and cheaper to just throw a carb on it and go racing. I may eventually switch to EFI, you never know.

[Joe O]

Not a big deal ,, was just curious... could be what you call "some left on the table" right there.

[Flyinz]

Joe O, glad to see you're still around here!! ^^^

[Joe O]

Not to get off topic on the thread , but thx.. been way to long!