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Super Victor or Hi Ram on a 440ci rec port?

Old 01-02-2019, 03:29 PM
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Default Super Victor or Hi Ram on a 440ci rec port?

Was going to switch my intakes this winter and was wondering if anyone had information on either of these intakes on a 440ci engine or at least a 427 or something comparable. my set up this year will be a 440ci 13 or 12.5 to 1 compression ls9 headed ls1 block. I'm looking for power up to 7500-8000 rpms since i have a standard glide with a 4.11 gear 28" tires. last year shifting at 7500 had me around 7 at the traps, car was way down in power though i recycled my old cam from the 370 so this yeah I'm hoping to trap 150mph or more. Even if anyone has a few comparisons I could look at I would appreciate it, any slips or dyno numbers thank you
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Old 01-02-2019, 04:23 PM
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There was a big manifold test a while back that you should easily find if you google it. I believe the Hi Ram made more power than a Vic Jr or Super Vic.
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Old 01-02-2019, 04:45 PM
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CID intake is probably the best option
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Old 01-02-2019, 09:15 PM
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Originally Posted by spanks13 View Post
CID intake is probably the best option
Agreed.
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Old 01-02-2019, 10:47 PM
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I don't know that my combination is very applicable to you, but here is my thread about my engine dyno results of a 434 with LS7 heads and an Edelbrock Super Victor as well as the MAST single plane intake.

https://ls1tech.com/forums/dynamomet...o-results.html
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Old 01-03-2019, 12:51 AM
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Originally Posted by carbuff View Post
I don't know that my combination is very applicable to you, but here is my thread about my engine dyno results of a 434 with LS7 heads and an Edelbrock Super Victor as well as the MAST single plane intake.

https://ls1tech.com/forums/dynamomet...o-results.html
That seems to have the information i was looking to see. up top the vic falters but the mast stays flat. i might run out to 8400 if it keeps making power
I would guess the cid would be comparable to the mast, they look to be similar, may look up some results on those..
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Old 01-03-2019, 10:12 AM
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Originally Posted by freaky57fast View Post
That seems to have the information i was looking to see. up top the vic falters but the mast stays flat. i might run out to 8400 if it keeps making power
I would guess the cid would be comparable to the mast, they look to be similar, may look up some results on those..
One thing to be certain to note is that the MAST is a 4500 TB while the Super Vic is a 4150 TB. The 4150 plenum is a lot smaller which is what I believe causes the dropoff up top. I was actually pretty impressed that the Super Vic kept up with the bigger MAST as well as it did.

Also note that the Super Vic had been ported while the MAST was as delivered.

If I could fit a 4500 TB then I would definitely go that route. So if you have the option, I recommend doing so whichever intake you choose. Especially if you plan to spin that level of RPM.

Best of luck!
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Old 01-03-2019, 01:12 PM
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Originally Posted by carbuff View Post
One thing to be certain to note is that the MAST is a 4500 TB while the Super Vic is a 4150 TB. The 4150 plenum is a lot smaller which is what I believe causes the dropoff up top. I was actually pretty impressed that the Super Vic kept up with the bigger MAST as well as it did.

Also note that the Super Vic had been ported while the MAST was as delivered.

If I could fit a 4500 TB then I would definitely go that route. So if you have the option, I recommend doing so whichever intake you choose. Especially if you plan to spin that level of RPM.

Best of luck!
I should have said I plan on using the 4500 super victor in the op. am now considering the cid 4.5 now i had no idea they were as cheap as they are. I'm still waiting to see if anyone had a good back to back with the hi ram vs a single plane, its winter so i have about 4 months to decide the top of this engine.
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Old 01-06-2019, 01:28 PM
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You can get an LS1 block to 440ci? Please show me the way.
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Old 01-06-2019, 02:06 PM
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Originally Posted by bigsapper View Post
You can get an LS1 block to 440ci? Please show me the way.
Itís possible with aftermarket sleeves.
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Old 01-06-2019, 02:42 PM
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Default Pantera EFI 4150 = 1200+ CFM

HI ALL, I manufacture a 1200+ CFM air door that has the 4150 "foot print" with TWO 2.5" butterflies.

Lance

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Old 01-06-2019, 03:41 PM
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Originally Posted by pantera_efi View Post
HI ALL, I manufacture a 1200+ CFM air door that has the 4150 "foot print" with TWO 2.5" butterflies.

Lance
Lance,

Do you have any dyno or other data to show how that compares to a traditional 4150 4-blade throttle body? That's an interesting design idea...

I actually run one that is no longer made which was rated at 1550 CFM from Accel. I have no way to verify that flow rate of course, but it feeds my engine pretty well. I do get a bit of vacuum at the top of dyno pulls, but I expect that is as much plenum volume as it is throttle body flow capability.
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Old 01-07-2019, 08:42 PM
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Originally Posted by KCS View Post

Itís possible with aftermarket sleeves.
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Old 01-07-2019, 08:46 PM
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Originally Posted by bigsapper View Post
You can get an LS1 block to 440ci? Please show me the way.


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Old 01-09-2019, 10:10 AM
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Lance, I like that throttle body design quite a bit. A pair of 2.5" blades should outflow your typical 4150 throttle body with 4 1.75" blades, especially with that inlet shape.
Any plans on offering with larger 2.75" blades?
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Old 01-09-2019, 01:28 PM
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Default Pantera EFI 4250 Air Door

Hi Joe, thanks for the kind words.

I use the SAME butterflies in my "Eight Stack" LS ITB Intake.

The casting is too thin in the bore area for a size increase.

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Old 01-10-2019, 03:31 PM
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CID all the way. My N/A pump gas 434 made great power to 7500 and will rev easily to 8k with no loss in power

Their FB page has multiple posts showing power gains over much of the competition
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Old 01-11-2019, 08:07 AM
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Lance, do you offer anything like what you have pictured above on a drive by wire configuration? What cfm does that flow?
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Old 01-11-2019, 10:03 AM
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Originally Posted by cdubbzz View Post

CID all the way. My N/A pump gas 434 made great power to 7500 and will rev easily to 8k with no loss in power

Their FB page has multiple posts showing power gains over much of the competition
I think the CID is the way i will go. Looking around people are saying the same thing, I never considered them since I figured they would be mast expensive.
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Old 01-12-2019, 09:03 AM
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You may want to look at a TSP sleeved LS3 block if you are going to do all this. The LS3 is a better block and it has the bay-to-bay breathing windows that the NA motors like. Not so much for forced induction. I think they did some other block improvements as compared to the LS1. Most of the cost is getting the block ready and sleeving it that is why I suggest it. The LS9 takes 12 mm head bolts too. They can add that as an option also.
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