Ive heard and read some claims from different websites, boards, and people that the Super Victor is good for a lot of power over the vic jr and basically every other conventional single plain out there. I think the "20hp/20tq throughout the entire rpm range" has been a common number. This comes from guys that run dyno's, as well as the "seat of the pants feel" guys. The response allways seems to be the same, anywhere between radical street 350 to big inch small blocks. SO does anyone have any hard evidence? Any numbers? Any expierence? Im concideering an intake swap for the hell of it to see if my Old Team G is really that bad and im wondering if all the buzz is true.

Also anyone have any news or dyno runs with the Motown? Its been out for 2 years now and i STILL havent seen a damn thing on it except world's big claims

Give me a shout, you can take a peek at a Hurricane. Very nice piece, and also inexpensive. Just as nice dimensionally as my GM Chevy Bowtie intake. At about 1/3 the cost too...

Car rags have been dynoing a number of combinations over the years and the Super Victor has always come out on top. Whether you think that they are an independent source of information or a stooge of the advertising dollars is up to you. Personally I have seen as many Holley ads as I have seen Edelbrock, but perhaps Edelbrock pays more for the same advertising space. You be the judge.


Larger Dave

I actually dont look at dyno stuff in car mags as anything more than a fun buildup thing. Many of the instances have come off of internet boards by independant dyno guys..

My machinist buddy spoke highly of the super victor, and I was going to go with one in fact, but just liked the look of the motown, the fact they at least claimed a lower start for useful rpm, and they have cast in bosses for fogger nozzles or fuel injection, so thats what I'm running.
I have not been back to the track this year, but at the end of last year (or the end of my year after I bought a new house) I ran it, and with no changes other than a swap from a strip dominator to the motown, I picked up just under a tenth in the 1/8 mile, and gained nothing in the top. That made me realize how much my small full exhaust was hurting me, I switched out the exhaust over winter for 3" with an X dumped at the axle, and holy smokes what a difference it made, the car rev's like never before and pulls every gear harder, I'm looking forward to going back out to see what it does.
So basically, I'm impressed with the motown, it picked up a decent amount in the 1/8 all else equal, which is not even it's strong suit, so no doubt its good for more up top. I'll never be able to show apples to apples with the intakes now the exhaust is different, however.

I let you know in a couple weeks Nick -- I am getting ready to do a converter swap.

Then after I get some new baseline runs with the new converter I have a borrowed Super Vic to try.

I will say that the Sup Vic has a completely different plenum design. The Vic Jr has runner dividers that end at the entrance to the plenum -- the Super Vic has the dividers way into the center and bottom on the plenum. The Super Vic runners are a little bigger too.

Since a few of you guys are running 400s, I've got a question for you about the intakes. I'm considering the super victor myself. My 406 will have a 240/246 duration cam in it and will be around .540ish lift with my pro magnum 1.6 roller rockers. I will have vortec heads. This will be going in my 67 which already has a M20 Muncie and a 3.73 gear. My cruise RPM is around 2700-3000, so I will spend most of my time around that rpm or above it. I want get as much out of my motor as I can, but I don't want to make a wrong decision. Would this intake be right for me? While we are talking about induction, I was considering a holley 770 street avenger. Would this be about the right size for my motor, or should I go bigger on the carb?

67SS, It depends on how you use the car really, if it's just a cruiser then a performer rpm would work real well, but the low end torque would be almost useless with street tires. But, if it's much more performance oriented, a super victor or a motown which is similar, or just a good old fashioned victor JR would work real well, 400's make lots of torque naturally and are not as sensitive about manifold selection, regarding torque. So a motor that will spin mid 6k and above will benefit from a single plane, but the heads are often the deciding factor. I think with your vortec heads I'd look at an RPM.
As for carb, thats a big point for discussion, but I would go with a 750 double pumper on your motor, IMO.

The Super victor and Motown are very similar in design, runners are almost identical
and the plenum is very similar, I cant see there being more then 5-10hp diff between the
2 intakes. I think the Motown has a bit better plenum as far as the usual fuel distribution
problems that some of the big single planes have, when comparing the inside and outside
runner. I think that on your combo (350) both intakes are on the large side. Pick the one
that has the smallest runner cross-section. Stay small on the carb - around 750. Using
a 4-hole spacer would help in the midrange, but adds to the fuel distribution problems,
and will make the outside (long) runners run more rich, so you cant really use one,
but plenum work helps the fuel distribution problems a bunch.

I've run both the Super Victor and the Performer RPM on my Fastburn-headed 406. The Fastburn is very similar to the Vortec.

With a smaller cam but the same rear gear ratio, for me the best seat-of-the-pants combination was the Performer RPM with a SuperSucker 4-into-1 1" spacer. The cam is a 230/236 @ 0.050" hydraulic roller. The engine does not see the far side of 5800 rpm, and most times I'm shifting below 5500 RPM.

The low-speed driveablility of the RPM w/spacer was far better than the Super Victor w/spacer. Top-end performance may have been better with the SV, but my car spends a lot of road coarse time between 2800-5000 RPM, right were the RPM is designed to work. A high-revving only engine would likely be happier with the SV, but at some low RPM expense.

I initially tried the SV based on this article http://www.chevyhiperformance.com/techarticles/67838/index1.html Note the dyno results link on the bottom of the page.

Though the lower RPM numbers are similar on the dyno sheet, the part throttle response of the RPM was much better IMO than the SV. I thought for sure that since my engine is 50ci larger than the test engine that I would be good to go.

However, this is all subjective. Your results may vary.

I also never had good luck with a vacuum secondary carb when combined with a manual transmission and some gear. I tried several, including a nice HP750, with a lot of tuning time. The DP runs much better, and with some tuning returns the same cruise mileage as the VS.

First off, I have to say that there are a whole bunch of guys that know more about this post than I do!

That said, I gotta point out that if you are able to rpm above the grunt rpm region, then run a single plane!! Otherwise, imho, (I'm not so smart knowing here), use a longer intake runner dual plane and pick up midrange power!!

This stuff is why I would love to see somebody make a modern Z-28, crossram intake!!

The closest intake that I see that is a modern, (read, NEW design), intake is the "Double-horse-shoe" port intake!!

pdq67

Since a few of you guys are running 400s, I've got a question for you about the intakes. I'm considering the super victor myself. My 406 will have a 240/246 duration cam in it and will be around .540ish lift with my pro magnum 1.6 roller rockers. I will have vortec heads. This will be going in my 67 which already has a M20 Muncie and a 3.73 gear. My cruise RPM is around 2700-3000, so I will spend most of my time around that rpm or above it. I want get as much out of my motor as I can, but I don't want to make a wrong decision. Would this intake be right for me? While we are talking about induction, I was considering a holley 770 street avenger. Would this be about the right size for my motor, or should I go bigger on the carb?

770 for the street would be fine IMO, and the Vic Jr. works well on the street and track (on mine anyway). Now if you're running on the street mainly, a dual plane would be better (I really don't care about MPG in the Camaro)

Since a few of you guys are running 400s, I've got a question for you about the intakes. I'm considering the super victor myself. My 406 will have a 240/246 duration cam in it and will be around .540ish lift with my pro magnum 1.6 roller rockers. I will have vortec heads. This will be going in my 67 which already has a M20 Muncie and a 3.73 gear. My cruise RPM is around 2700-3000, so I will spend most of my time around that rpm or above it. I want get as much out of my motor as I can, but I don't want to make a wrong decision. Would this intake be right for me? While we are talking about induction, I was considering a holley 770 street avenger. Would this be about the right size for my motor, or should I go bigger on the carb?

Andy, I would lean towards the RPM in your case. A 1" open spacer on top of an RPM manifold will definately add some power. Reason being:

1) with your heads and cam the engine will likely be happy in a 2000-6000 RPM range. If you want to kill a little of the low end power and extend the RPM range upward a little the Victor Jr would probably do that; however, I think the RPM Air Gap manifold is a better match for your heads and intended RPM range.

2) The Super Vic has A bigger port cross-section then the Vic Jr or Air Gap -- you may have a port mismatch with the Super Vic on untouched Vortec heads. It's OK if the heads are bigger then the intake, but you will kill power with an intake that is bigger then the heads.

3) Having a manual transmission and street/strip gear makes the engine more sensitive to low end TQ IMO. While you may cruise around at 2700+ RPM you will undoubtedly drive it easy on the street. When driving it easy on the street the RPM will make for better response and should make it easier to engage the clutch under light throttle.

On the carb a 750 cfm double pumper would work great IMO. Better than a vac secondary carb.

what's the difference between super vic and vic jr. I'm putting together a 406 and picked up a vic jr. for relatively cheap - but don't wanna leave any power on the table

Eric,

Please come back and comment on what I said!!

About the "horse-shoe" shaped intake!!

pdq67

There's some interesting new carb spacers coming... dyno results looking better than the Super Sucker and as good as the Wilson, but made from phenolic material so it will be a better deal. I'm going to run one on the new motor, and if anyone's interested to see what it looks like I'll get photos up here probably next week. I have a few guys here who have already ordered them from me. Pretty slick piece!

I agree with Eric on the double pumper but leans toward more strip than street. I also run a 750dp and at about 65 the secondarys are opening... food for thought.

Eric,

Please come back and comment on what I said!!

About the "horse-shoe" shaped intake!!

pdq67

Sorry Paul, I'm not following you on the "horseshoe" intake. Are you referring to a specific intake or a longer U shaped runner design?

This one Eric.

http://flowdesign.tripod.com/flowdesigntechnology/id6.html

The Tork Link jobber the roundy-round guys use.

I don't know how good it works, but I sure like the long runners that I figure are good torque producers.

pdq67