[dci]

I am having a real tough time with pulling the trigger on this single four intake for my 5 heads. Because I have so many guy's wanting this to fit under the hood.I am going to do it, but the intake in my opinion is going to limit my heads ability to perform. Take a look at the drawings and see what you think. I feel the intake is to flat ,but I cannot go any higher or it will not fit under a stock hood. I really do not like the thought of investing so much money into a turd. If it didn't cost so much, it would not bother me so much.



Don Johnston
DCI MOTORSPORTS INC.
330-850-5050 shop
330-628-3354 cell
Designer of the DCI Tiger Heads and the NEW DCI Ram Air 5 Heads!!!!!!

[tom s]

If it wont bolt up to a stock set of heads without any work along with a water X over I think your wasting your money!JMHO,Tom

[quicksilver97ta]

Those guys obviously want the cool factor, that is to say, it's a matter of priorities. Thats cool... Is it the carb or the air cleaner that interferes with the stock hood? Is there not enough clearance to make the intake taller and just mandate the use of a drop base air cleaner?

[dci]

To be honest, I'm not really trying to appeal to that market. The factory heads are so hard to come by, and the guy's other than yourself and a hand full of others don't use the heads anyway. It seems like most of the guy's I know that have the heads. Would rather keep them in boxes on the shelf and just use them for conversation sake. I know were there are several sets, but they are not on engines. So I think that if I made it to fit them that I would be wasting my money. Not saying that my intake could not be made to work on factory heads. It's just not my target audience.


Don Johnston
DCI MOTORSPORTS INC.
330-850-5050 shop
330-628-3354 cell
Designer of the DCI Tiger Heads and the NEW DCI Ram Air 5 Heads!!!!!!

[rad400]

Don it might fit with a good drop in the base or like my dude scoop from Keefer and a frop base.

[dci]

quicksilver97ta, I did cheat it up a little higher than a factory quadrajet intake by 3/4", but it is still to low in my opinion. I'm trying to keep it low enough that someone with a Trans Am could still use their shaker scoop. And I think your right, the street guy's are more interested in the cool factor not all out performance.



Don Johnston
DCI MOTORSPORTS INC.
330-850-5050 shop
330-628-3354 cell
Designer of the DCI Tiger Heads and the NEW DCI Ram Air 5 Heads!!!!!!

[Brian Baker]

Originally Posted by tom s

If it wont bolt up to a stock set of heads without any work along with a water X over I think your wasting your money!JMHO,Tom

I agree. Make it so it will work with OEM heads and fit under the hood and don't worry about it choking the heads. If someone wants to unleash their potential, they'll contact someone like Wilson.

[s2k1]

If I were putting these heads on one of my GTOs and wanted to keep everything under the hood, I would build a custom cross ram EFI setup with individual throttle bodies. That's just me.

[ho428]

You know me Don, I really want a dual quad... But either way it's got to fit under the hood or people like me won't buy it.
I run a Northwind with a drop base and it fits under a FGF hood even with a 1/4" spacer.
What the NW won't do is fit under a second gen. So you might have to make a car body decision if you want performance height under the hood.

[Sirrotica]

Don, if I spend the money on the redesigned V heads, I would definitely not want them choked by the limiting factor of an intake that has to fit under a stock hood. The factory already made that concession and according to dyno tests the factory V intake really holds the factory iron heads back.

With the raised ports your heads have there is probably only going to be one intake made and I'd like to see it made for utmost performance, not fitting under a stock hood.
Is there any chance the carb base could be made similar to the KRE Northwind that could be milled for clearance at the owners discretion knowing that they will give up some power by doing so.

If your going to make it to fit under a stock hood you might as well make it for a Q-jet base too.................................LOL

[tom s]

Don,Lynn's single is very good and pretty much what your going to make!

[Tom Vaught]

Originally Posted by s2k1

If I were putting these heads on one of my GTOs and wanted to keep everything under the hood, I would build a custom cross ram EFI setup with individual throttle bodies. That's just me.

That would be my vote too. A LOT of guys are looking into EFI these days and the cross-ram would fit that need (as would a low profile EFI 4-BBL Throttle-Body and a higher intake runner design).

So I would not give up on doing a more developed FUNCTIONAL vs restricted) intake manifold design. Anyone that spends the money to buy your RAV split port heads will have the money for a EFI set-up and still have lots of bragging rights (that it is a RAV type design. You said you are not catering to the stock RAV guys. Cater to the state of the art Pontiac guys who want latest high tech with old school roots.

Tom Vaught

[mgarblik]

Up until Tom's post, I had not really considered EFI. But why not? Lots of advantages there for a street car and the lousy high vapor pressure pump gas. A cross ram EFI would be really cool. For my personal use, keeping it all under a stock hood is a must. I wouldn't cut up my original muscle car with a hood scoop. I like the appeal of stock looking and a killer engine hidden under the hood. As said, the manifold needs to work too. A tough situation with tall heads and low hoods.

[RAIV-Z]

Originally Posted by tom s

Don,Lynn's single is very good and pretty much what your going to make!

Will McCarty's intake fit your heads and stock V heads without major modification and will it make reasonable power?

In my opinion, your target market for aftermarket RA-V heads fitting under a stock hood is going to be extremely limited.

You should not compromise your intake design to fit under a stock hood. If it fits McCarty's heads, and is EFI ready, I'll take 1.

Do you need an intake to test fit with your heads?
How close are your exhaust ports/header bolt locations to McCartys V heads?

[s2k1]

Originally Posted by Tom Vaught

That would be my vote too. A LOT of guys are looking into EFI these days and the cross-ram would fit that need (as would a low profile EFI 4-BBL Throttle-Body and a higher intake runner design).

So I would not give up on doing a more developed FUNCTIONAL vs restricted) intake manifold design. Anyone that spends the money to buy your RAV split port heads will have the money for a EFI set-up and still have lots of bragging rights (that it is a RAV type design. You said you are not catering to the stock RAV guys. Cater to the state of the art Pontiac guys who want latest high tech with old school roots.

Tom Vaught

Sorry for the Hi-jack Don!
On subject, I too think you should make the intake for optimum performance, and not worry about the hood height.

As for the cross ram, how about something like one of these?

[67copperbird]

I will play the devil's advocate and say "make a short deck block" then you could have a taller intake. Problem solved.

[tom s]

a custom converted ford tunnel port single 4 made 30 HP over a stock intake!It was the same height as the stock intake.That was with just a intake change with same carb and no tuning.It is worth the change IMO.Tom

[67copperbird]

Don I personally think that folks who want a tall single plane or dual fours would spring for a custom intake. For my application I will need something that fits under the hood. If that means having an intake made than that's what it means. I would let the folks who buy them drive your market.

[Tom Vaught]

The 2nd picture posted by s2k1 would be fairly easy to cast up as it is actually 2 runners systems. Do the work properly and would could use one mold for both sides if you got the stagger right.

Tom Vaught

[Doug Hopkins]

If I were spending the the money to put a RamAirV in my Firebird or GTO I would not worry about the hood clearance. I would want the best intake manifold you could make. I would make the adjustment with a cowl induction style hood. The RAV is not original to the car, so why worry about using an original hood. Just my 2cents.