Super Victor intake with elbow...how much low end grunt would it kill?

[hemihotrod402]

I know most of you are aware of the Super Victor EFI intake and elbow for a 351. I have been contemplating between a 351 and an explorer 302 ever since I found out I will have a job that will fund this over the summer. Anyway, I though maybe carbed 351, but the more I think about it, the more I want to go with EFI. I haven't counted out the explorer motor though.

The 351, has

1. More Cubes
2. And it will withstand more power when I do more expesnive mods in the future.

Now, I had a thread about this, but I don't know where it is, and it was full of Outlaw's ranting about how great it would do on a realatively stock motor. He said a lot of shit, and I don't know if itcan be trusted. I'd much rather get an honest opinion from someone who has played around with engines longer than I have, And doesn't talk about budgetless builds, because when you are 17, money is a huuuuuge problem lol.

Anyway, how much low end power and torque will I lose If I were to go with a 351 topped with a super victor intake, with some light upgrades? I would definitely have a smaller throttle body despite the 90mm opening (more of outlaw's crap), probably 70-75mm MAX. If I knew where to find a lightning intake, I would defiantly go with it, but I have no idea where to start looking, and It won't be cheap.

EDIT: My biggest concern is throwing on that intake, without having enough motor beneath it to really be effective.

[Pirate]

Keep in mind that the Super Victor requires its own dedicated distributor.

I'd go with a Trick Flow 351W intake, personally.

[1980c10]

I have a complete lightning intake upper and lower even has the lightning plaque <---spelling? anywho its not cheap though PM me if interested. Its to small for what im doing so im thinking about ditching it.

[import convert]

the big thing is that you might not loose hp/trq itll just get shifted to different rpms so you can end up with all hte power at 3k instead of 2k (ex). you can make it work but the best hting is to pick an intake manifold that works in idle-6k for now cause anythign higher is more extreme then what a stock to modest build 351 is designed/capable of.

bigger isnt always better when it comes to engine parts

[jayh]

you have to overlook when some people cut and paste what other people say and take it out of context. something tells me a certain someone is in his early 20's and really doesnt have the experience he pretends to. a 4300lb f150 thats street driven and goes high 8's in the 1/4 with an all motor small block, yeah OK!

any good engine builder will tell you its all about a combination of parts that compliment each other.

a super victor on a stock 351 will equal failure. with a free flowing exhaust(1 3/4 longtubes, 3" exhaust) headers a good cam maker can play with the valve timing to get it to work

honestly, on a stockish 351 with ok exhaust (1 5/8 headers, 2 1/2" exhaust) and an off the shelf cam in a heavy vehicle its hard to beat a performer rpm

on a 351 I would probably just go carbed

there is no replacement for displacement

dont get me wrong, with a big cylinder head, some compression, big exhaust, some rpm and a custom cam you can get a big single plane to work well, but for the build you probably have in mind, a performer rpm is probably a better choice for you.

[Pirate]

you have to overlook when some people cut and paste what other people say and take it out of context. something tells me a certain someone is in his early 20's and really doesnt have the experience he pretends to. a 4300lb f150 thats street driven and goes high 8's in the 1/4 with an all motor small block, yeah OK!

any good engine builder will tell you its all about a combination of parts that compliment each other.

a super victor on a stock 351 will equal failure. with a free flowing exhaust(1 3/4 longtubes, 3" exhaust) headers a good cam maker can play with the valve timing to get it to work

honestly, on a stockish 351 with ok exhaust (1 5/8 headers, 2 1/2" exhaust) and an off the shelf cam in a heavy vehicle its hard to beat a performer rpm

on a 351 I would probably just go carbed

there is no replacement for displacement

dont get me wrong, with a big cylinder head, some compression, big exhaust, some rpm and a custom cam you can get a big single plane to work well, but for the build you probably have in mind, a performer rpm is probably a better choice for you.

The only complaint I have against the Performer RPM for the 351W is that while it makes good power, the fuel distribution of the non-air-gap model is a disaster. It's easily fixed with at least a 1" open carb spacer, but a 2" open is preferred.

Otherwise....you get lean plugs on one plane, and rich ones on the other. Stagger-jetting is another way to fix it (three jet sizes variance on one I've worked on, for example), but the open spacer works better in my opinion.

Once that's out of the way....it's a good intake.

[jayh]

yes I prefer a 1" open spacer, I also cut a 1" window in the divider if it isnt already there, but that is tuning you do to YOUR engine, it may like 1", it may like 2", its easy enough to test and see what your combination likes

like I said, its all about combination; on a healthy motor, a single plane is the better choice, but on a stockish-mild 351 like alot of people on here will probably put together, my experience has favored the dual plane.

it all depends on the combination

[jayh]

ranting about how great it would do on a realatively stock motor.
I'd much rather get an honest opinion from someone who has played around with engines longer than I have,

Anyway, how much low end power and torque will I lose If I were to go with a 351 topped with a super victor intake, with some light upgrades?

EDIT: My biggest concern is throwing on that intake, without having enough motor beneath it to really be effective.

these select comments influenced my replies; these comments suggested a stockish to mild 351. with a healthy combination, a super victor would make the most sense, even over a vic jr

[hemihotrod402]

thanks pirate and jayh, what I mean by a mild build on the engine, would be a healthier cam, maybe performer heads, and then topped off with the super victor. I am worried about not having enough power in other places ti catch up with the intake. I'm kinda leaning towards the explorer motor for now, just because I can get them pretty cheap (<500 around here) and start building up a 351 on the side, as the money comes in.