abray1

www.airfuelinnovations.com
Have you guys seen this new intake. It looks to be a HSR with a new top. They have a cnc version that flows 387 cfm. If someone has one let me know.

anesthes

iTrader: (12)

Wonder why they suggest 2 feed lines for > 500hp...

-- Joe

Twin_Turbo

iTrader: (25)

First I've seen of it, thanks for the link. I kinda like it

conlinj

iTrader: (3)

Wonder what modifications are needed to clear the stock camaro hood and possibly stock firebird hood? Hopefully we get more info on this. Wish this was posted before I had my vortec HSR ported

Twin_Turbo

iTrader: (25)

It will probably clear as is, I have a Multiport from street & performance and its a similar manifold but the plenum is higher near the TB and that's where it just hits a section of the hood support frame (nothing a cutoff wheel wouldn't fix)

conlinj

iTrader: (3)

I thought the same thing looking at it since the TB is angled down, but the brochure has the note that it can be modified to fit under the stock camaro hood. Hopefully I'll have the chance to call tomorrow and find out.

sd concepts

hey you guys, Our shop here at SD Concepts engineering are the ones that haver made this intake. we currently have one person that has an intake on his chevelle. what kind of questions do you all have on it feel free to call our shop 4018264400

anesthes

iTrader: (12)

Any information you can give is appreciated. I'd be willing to add this to one of the sticky threads if it's found to be useful.

-- Joe

sd concepts

AFI Manifold
AFI’s small Block Chevy intake manifold optimizes your air flow with a BOLD new look. Designed specifically for your EFI engine, our three piece system delivers max horse power along with a broader torque curve. Intake finish is as-cast with a polished logo.

PRO305
-Flows 305 cfm’s
-Fits standard port SB Chevy
-Fits Vortec heads

PRO387
-Flows 387 cfm’s
-CNC Ported
-Fits standard SB Chevy
-Fits Vortec heads
-Fits SB Chevy with large race ports

Unique Features:
-Full radius, raised runner entrance
-Unique upper intake plenum shape
-Overall system is optimally designed for low turbulence and even air distribution
-Mid plate and upper plenum are fastened with an O-ring instead of gaskets for ease of disassembly
-8 bolt mid-plate retention (instead of four) for high boost applications
-all fasteners are hidden, for a sleek look
-Can be used with just about any EFI system

Price $1350 and up

SD Concepts Engineering
4 Daisy Street
West Warwick RI, 02893

CALL (401)826-4400
http://www.airfuelinnovations.com/

Twin_Turbo

iTrader: (25)

can we get some pics from inside the plenum and the top of the base manif??

Tibo

iTrader: (15)

As soon as I saw the price tag ($1350) I realized why I hadn't seen it around. It looks like someone took an HSR and just replaced the rectangular plenum with an oval. It even says to use the HSR rails. For hundreds less than 1350 you could buy a single plane with 1000+ cfm rating that uses -8an rails.

Joe, I'm guessing it says to use two feed lines because the fuel rails are a -6an size, so to support high horsepower each 6an rail would need it's own dedicated feed line. You wouldn't be able to mount an 8an fuel rail to this.

abray1

WOW at $1350.00 I am embarrased that I brought it to the board but I couldn't find a price. When will these people realize it is just a hunk of aluminum that flows air. Myrons miniram works great but for 1/3 the price I have two HSR with cash left over. Even after welding and port matching one of mine to a set of track1s that flow about 305 through the entire set-up. I don't understand the 1350 since it is a hsr with a new top. That top must add 250hp and 350ftlb. I need a cnc machine, some aluminum billets, and a class after work on how to program it. I could retire in a year.

Twin_Turbo

iTrader: (25)

Not if you are sellling to 3rdgen owners, you'd be bankrupt

anesthes

iTrader: (12)

I'm still a little fuzzy. -6 should flow around 67 gph, which at .5 BSFC should support 800hp.. Heck, most 67gph fuel pumps step down to a -4 at the pump outlet..

-- Joe

sd concepts

Twin turbo I added alot of pictures to our facebook page, along with the inside of the upper intake. The upper intake has 570 cubic inches worth of space in it. Our facebook page is http://www.facebook.com/SDConcepts feel free to like our page.

as for the price I want to clarify that the price is an average of what a person could be spending. There are plenty of options a person can choose from so dont let the price shell shock you. The price will change up and down depeneding on what options you choose and what you need for your application.

abray1

So can you make one fit brodix 15 degree heads? Or 18 degree high port heads or other similar sprint car type heads?

Tibo

iTrader: (15)

I'm fuzzy on the exact numbers myself. I have read some good posts by Orr and some other turbo guys about that topic. Maybe he'll chime in....

anesthes

iTrader: (12)

While results may vary between members, if you read some of the published data by Greg Carrol and others you'll find the number between 600-800 acceptable on a -6AN line depending on the pump in use.

Every bend and fitting in the system will add a restriction, so you need a pump that can maintain the fuel volume at the rated pressure - pressure both at the PUMP HEAD and at the fuel rail.

Also, volume drops as pressure goes up. If you look at a flow table of a walbro, or any other, you'll find the rating (say 255lph) is at around 3 bar, where if you bump pressure up to say 60psi, the volume might be reduced to 220lph.


-- Joe

Orr89RocZ

iTrader: (20)

If you have enough pressure you can flow enough to make near 1000+hp on a single 6an feed. Latemodel vette guys have done so I do believe as their hardlines are about -6an size. Lonnies performance commented on this I believe in a thread on ls1tech but he's on here too and built my system.

Problem is walbros dont like to be run at super high pressures... flow rates drop and the pump heats up. So it makes sense to go alittle larger in line size to keep volume up at lower pressures.

So 600-800 is definately doable and realistic on a single -6 feed but would need dual pumps most likely. Single can do 600hp and abit more with a boost a pump. 800 would want dual pumps and would make sense to also increase line size just in case.




Back to the OP. interesting intake for sure. I like the plenum's increased volume and interesting shape. Curious to see how it works with air fuel distribution as there have been minor issues with stealth rams and miniram type intakes with front to rear distribution. Also curious to see how much power it supports on the bigger motors. I have no doubt the HSR base can be ported to make big hp numbers on larger motors, once you get around the 1205 port limitation by welding intake face up or getting the base with extra material casted in, which I think leaves enough material. I havent seen the later model HSR's.

As far as price, its alittle steep but if it depends on what your getting, I'd like to know the base cost for a bare intake setup which features as cast base, + mid plate + plenum bubble and thats it. Also whats the CNC option cost? Thats a big jump in flow. Your talking as cast intake for your 355-383 builds using typical 190-200cc heads that are 300cfm or less and going to a fully cnc option that seems better suited for your 220-245cc heads which are really only for 400+ cubes that want to see over 6000 rpm. A very serious motor. Not many will need that option.

GTAmazing

it's ugly

norcalz28

iTrader: (13)

How does it compare in real world performance to the HSR? That is a hefty price tag. Can you quote a price for the base/"mid-plate"/ plenum similar to what Weiand offers.

Will

The_Punisher454

If youre needing that kinda flow and are willing to spend 1300+ on a manifold you could just pick up a real full race type tunnel ram and have injector bungs welded in. If you are not going to limit yourself by requiring it fit under the hood you could run down-draft throttlebodies right on the carb flanges. Front-to-rear distribution problems solved!

On another note I see that they sell the "Meth Tool". Might wanna think a little harder before naming a product next time, unless its a clever ploy to expand their customer base.

APACHE JOHN

And we called the BBK the "turtle ram" LOL I kinda like it, but it reminds me of a 30 year old Ferrari design......can't remember the model, but they were always powdered coated red.