Air flows: Street Dominator & Edelbrock RPM

[moper]

Three comments...
1. I never trust Hughes published anything.
2. It's easier to screw up a good intake than improve a good intake using a cutter within it.
3. Your dyno results mimic my street/track experiences. The RPM will be snappier and a flatter curve. The SD will usually outpower it, all else being equal.

 

[famous bob]

Three comments...
1. I never trust Hughes published anything.
2. It's easier to screw up a good intake than improve a good intake using a cutter within it.
3. Your dyno results mimic my street/track experiences. The RPM will be snappier and a flatter curve. The SD will usually outpower it, all else being equal.

---------
Not arguing w/ anyone here. My heads flow [email protected] lift, but don`t go up much from there. Seems like killer street heads, that flow very well, and no need to run anything bigger than a matching SOLID street roller cam. I reworked my torquer 2 , but would like to have something that I can get under my scoop w/ an air filter, "and" matches my heads in airflow. Not sure about mine, and can`t see a street dom. being equal to what I need. If I had the coin, I`d get a Wilson prepped intake, but-----------$$

 

[IQ52]

Air flow for the three 440 RPM intakes we had around here.

1) OOTB, self explanatory.
2) Pop's is one my dad did 'bout 20 years ago, gasket matched and blended in about two inches.
3) Dyno tested is the customer's that was repair welded and gasket matched for a couple hundred bucks.

Port #........OOTB.........Pop's.........Dyno tested

1................283..........320............306
3................302..........327............329
5................308..........338............340
7................267..........302............308
2................285..........329............322
4................285..........320............292
6................278..........302............285
8................295..........323............322
Averages....288..........320............313

We dyno tested Pop's against a gasket matched and blended Torker II on a 496/440 and the Torker II made 612 lb-ft @ 3,600 rpm/638 hp @ 5,900 rpm. Pop's RPM made 640 lb-ft @ 3,700 rpm and 627 hp @ 5,700 rpm.

The Street Dominator:

1) OOTB
2) Gasket matched and blended
3) Quick port to raise lower flowing runners. This gives you an idea what the Street Dominator could be ported to. We took the three lowest flowing ports (#'s 3, 6 & 8) and did a bit of porting on them.

Port #.........(1).........(2)..........(3)

1)..............267.........297........297
3)..............258.........281.......313
5)..............276.........297........297
7)..............279.........301........301
2)..............279.........309........309
4)..............272.........301........301
6)..............258.........281.......313
8)..............267.........292.......320

 

[AndyF]

I'm a little surprised that the SD did that well but not shocked. A single plane will usually pull away on the top end. On the street the dual plane is almost always the winner. I've tried that test a bunch of times and whenever I change back to the dual plane intake I can feel the extra punch getting across the intersection. They do run out of steam earlier and at the drag strip the dual plane usually lays over in top gear, but on the street they really provide some extra kick.

 

[famous bob]

Air flow for the three 440 RPM intakes we had around here.

1) OOTB, self explanatory.
2) Pop's is one my dad did 'bout 20 years ago, gasket matched and blended in about two inches.
3) Dyno tested is the customer's that was repair welded and gasket matched for a couple hundred bucks.

Port #........OOTB.........Pop's.........Dyno tested

1................283..........320............306
3................302..........327............329
5................308..........338............340
7................267..........302............308
2................285..........329............322
4................285..........320............292
6................278..........302............285
8................295..........323............322
Averages....288..........320............313

We dyno tested Pop's against a gasket matched and blended Torker II on a 496/440 and the Torker II made 612 lb-ft @ 3,600 rpm/638 hp @ 5,900 rpm. Pop's RPM made 640 lb-ft @ 3,700 rpm and 627 hp @ 5,700 rpm.

The Street Dominator:

1) OOTB
2) Gasket matched and blended
3) Quick port to raise lower flowing runners. This gives you an idea what the Street Dominator could be ported to. We took the three lowest flowing ports (#'s 3, 6 & 8) and did a bit of porting on them.

Port #.........(1).........(2)..........(3)

1)..............267.........297........297
3)..............258.........281.......313
5)..............276.........297........297
7)..............279.........301........301
2)..............279.........309........309
4)..............272.........301........301
6)..............258.........281.......313
8)..............267.........292.......320

Sounds decent, but I need at least another 30 cfm to match my heads. A cording to what I`ve read, even the same flow isn`t good enough, the intake needs to flow more than the heads. Don`t know about that, but I`d like to have 350 at least. 505" wedge is hungry.

I'm a little surprised that the SD did that well but not shocked. A single plane will usually pull away on the top end. On the street the dual plane is almost always the winner. I've tried that test a bunch of times and whenever I change back to the dual plane intake I can feel the extra punch getting across the intersection. They do run out of steam earlier and at the drag strip the dual plane usually lays over in top gear, but on the street they really provide some extra kick.

----------low end doesn`t worry me, mine has plenty. very docile so far, not so much when u get in it. would like to have something around the 350 - 360 range that fits under my hood scoop. ----------------dreamin!