Intake Option For Vortec Heads

[qbnkiller]

Re: Intake Option For Vortec Heads

Rev's setup is for a CPI, our stock-style TBs wont be in his equations....he's going a different route.

I know what you are saying Frank, but as I stated before, I will check out the numbers and let them speak for themselves. A great many things have looked like absolute crap on paper, but work in real life. Ask any engineer about that...they all have many examples. When you have your intake manifold option ready, just drop the info on here with some numbers, and we (the community) will have more options to choose from. This is what it's all about.

I encourage you to continue with your idea..I know there must be others on this and other forums that feel the same way you do. The purpose of putting this info out here is so others can make an informed decision, and offer advice in area that may need it. So when this goes into quasi-mass production, sytyers will get what they want. You want it for old L35's/stock heads? No problem! You want a 75mmTB? Sure! You want a carb spacer so you can plumb your vacuum lines / nitrous / alky? Can do! You want a 105mm TB? OK! This way, everyone is covered.

As for the intake manifold choice, other than a high $$ custom unit, this is what we get. The Edelbrock unit is not as bad as you make it out to be. It is rated to 5500RPM, because that is how far the engine was originally designed to be. Does it lay down above that? We'll see that on the dyno. I think there is far better fuel/air distribution through this piece than with the stocker, as stated by Windedv6. Again, this thread is to give us all another option. Before it was:

Stock
Stock rewelded for VORTECS
CUSTOM SHEET METAL UNIT

I am hoping to be able to bring this unit out to board members around $1100-1200 without AFPR or injectors. I am trying to make it so you can use your existing AFPR and injectors. Of course, if you wan tthose items, I have them available.

Like I said, I amtrying real hard to make a unit that can be tailored to your needs, so thanks for the words of encouragement....I'm trying my best here!

Rds.

Alex Esnaola
MAI TY #1600

 

[bigtime]

Re: Intake Option For Vortec Heads

I also built one of these a couple of years ago. I used a 80mm BBK F body throttle body. I build these regulary for high boosted small block street cars cylinder distribution is excellent. Like Ken said, to big of a throttle body will only make tip-in a nightmare to tune but will not hurt performance.

 

[bigtime]

Re: Intake Option For Vortec Heads

One more thing, the edelbrock manifold's flow/rpm rating is based on wet flow with a carb. We use them just flowing air so that changes runner performance. Also I used a large elbow to get my plenum volume to what i believe the engine wants.

 

[qbnkiller]

Re: Intake Option For Vortec Heads

I should have pics real soon with the fuel rails and stuff mounted...

 

[MikeRenz]

Re: Intake Option For Vortec Heads

aren't you adding the injector bungs first?

 

[qbnkiller]

Re: Intake Option For Vortec Heads

Here you can see the quality of the injector bungs weld. Should be real slick!

 

[MikeRenz]

Re: Intake Option For Vortec Heads

looks nice. Is there room to turn the injectors 180 degrees so that the connectors point inwards, and hide all the wiring?

 

[qbnkiller]

Re: Intake Option For Vortec Heads

I'll look into it...maybe for the next one I can move them in a little...

 

[qbnkiller]

Re: Intake Option For Vortec Heads

OK...got some more decisions for the people interested in this intake manifold. I have been looking into incorporating your existing AFPR (Bosch-style mount) into the fuel rails. First, I looked at drilling the mounting holes right into the rail stock, but I don't feel that this is the best way to go. You'd have to seal the bolt threads well. Next, I looked into the adaptors that are sold to allow you to do this, but I don't like this either because of the way they mount and suspend the regulator in the air. It seems like a very weak mount, and if you bump it, it might leak or break. Here's a picture of the mount:

The standoff is what would mount to the fuel rail by way of a pipe-style fitting. See what I mean about it being suspended? Not very cool, IMO.

The last thing I can come up with changes our AFPR with an AEROMOTIVE unit.

http://216.242.145.16/products/product.phtml?p=10

This unit is a very nice one that Summit sells for $135. This would allow us to mount the regulator anywhere in the engine compartment. We would then run -6AN fittings on all ends with braided hose, and it would look trick as hell.

I am at a cross-roads here, and can go either way. I wanted to maintain the price as low as possible, but I don't see a better way.

qbnkiller

 

[bigtime]

Re: Intake Option For Vortec Heads

Make the drivers side rail longer and then put it in. It actually works out pretty good with the hose routing. I made spacers to hold the stock afpr the proper distance away from the rail. There is no need to worry about drilling thru to where the fuel is as there is plenty of meat in the rail.

 

[MikeRenz]

Re: Intake Option For Vortec Heads

hey bob,
aren't those injector bungs a little tall? wouldn't spray from the injectors hit the walls of the bung and run down? or is the picture just misleading?

 

[bigtime]

Re: Intake Option For Vortec Heads

hey bob,
aren't those injector bungs a little tall? wouldn't spray from the injectors hit the walls of the bung and run down? or is the picture just misleading?

Actually I faced them later. these are the only pics i have while i was building it. But they were not high, I just did it to level them.

 

[MikeRenz]

Re: Intake Option For Vortec Heads

Actually I faced them later. these are the only pics i have while i was building it. But they were not high, I just did it to level them.

gotcha....i was just curious.

 

[qbnkiller]

Re: Intake Option For Vortec Heads

Here's an update for all of you waiting for me to finish this.

I started working on the VORTEC replacement intake manifold to use on some '01-newer VORTECs I was going to build. The buyer I had for my heads fell through, so I stopped where I was on the VORTEC-specific intake and started a non-VORTEC intake, using all the same (except for the intake manifold itself) components. This means that all of you that have stock or L35 heads, can also get in on this style of intake.

Tomorrow, I will tap out the ends for the crossover fuel line in the front, get the other fittings for fuel IN/OUT from regulator, and a plug for the other end. I also am looking at what to do for the throttlw linkage, and will be stopping by Ford to get a TPS sensor and harness.

LMK...getting closer...

 

[VdayTyphoon]

Re: Intake Option For Vortec Heads

whats that sticking out of your driver's side head? kinda looks like the oil pressure sender?

 

[Revolution]

Re: Intake Option For Vortec Heads

Those valve cover spacers look awwful familiar. And I belive holley actually made a drilled and fitted intake for the pre vortec heads I looked into them back in the late 90's they can still be had on ebay for 150 bucks or so. The come with either the bosses cast in or the injector bungs actually machined in they discontinued the part but very similar. Notice you are going with a smaller TB too. Good choice!

 

[qbnkiller]

Re: Intake Option For Vortec Heads

how's your intake setup coming, Rev? Going to pick up the remaining pieces (I hope) today...

 

[HotRodV6]

Re: Intake Option For Vortec Heads

Hey i have been following this thread, and like what i see, but i have my own idea and wanted to get some feedback. I have a set of 2004 vortec heads i bought and have just dropped them off at the machine shop the other day, along with some 2.055/1.60 manley race flow valves, stock length and comp cams 987 springs retainers and locks to have the valve job done and springs fitted and guides machined down for .600 lift. Anyways im going to run a 422 comp cam with 1.6 pro nag rockers and have been really going back and forth weather to go air to air or stick with the air to water, as mine Ty is my Daily driver im thinking i can get the best performance from an air to air setup, and have been thinking about doing a different intake setup to go that route. Heres what i thought about doing.

Getting the Holley Carb Intake that already has the injector bungs cast in and fully machined:

I would still need to be welded to cover the intake ports, but that is pretty cheap to have that done around here, less than the 100 dollar price differance between this and the Edelbrock 2114.

Then instead of using a 300 elbow and then a 200 or so dollar single TB, why not get a 4 barrel EFI 1000 CFM TB that will bolt directly to the intake, and id add a 2in aluminum spacer to add in some vac ports and some plenum voume. I was looking at an Accel one on ebay that is here in town but i was checking summit and came across this universal one they sell under p/n 1716 for 360 bucks and is 1000 cfm, has progressive linkage to make part throttle tuning pretty easy and uses late model GM TPS and IAC.

So for less than 500 bucks you have the intake and TB assembly, then just get the intake welded up, and some fuel rails and various fittings.

Then to get the air in the TB on a noce looking package there are several choices, but i came across this one on ebay for 150 bucks that would look really sweet with the fins polished and the reast powdercoated red or other color of your choice besides the black.

It will bolt right down to the top of the TB just lke a carb, and you can spin it 360 degress and have your charge pipe come in anywhere your heart desires. And without the machine work your at 650, which i think is hard to beat, and i believe can be finished for under a grand, if you do your research and find the best prices.

Also i think the 4 barrel TB will give much better drivability and tuning ease than the single Tb will.

Ok, so thats my thoughts and ideas, and right now im supposed to be buying an ATR upper IC from a guy for 500 bucks, but im just not sure i want to stick with the air/water setup, i could loose some weight and complexity, and for that 500 bucks be halfway to a new custom intake setup. Also a freind of mine has this holley intake on his Built TBI 4.3 and is making everybit of 300 HP with vortec heads on an N/A motor(at the crank) so i know the intake come flow some decent numbers, and im sure can outflow a fully ported stocker and weight less.


Ok, give me your feedback, good or bad before i start buying parts.

Thanks and sorry to hijack your thread, but i figured this would be the best place to put this.

 

[qbnkiller]

Re: Intake Option For Vortec Heads

I have thought about using that same intake manifold, but I don't really like the look of the EFI TB you have there...and that top hat...not for me. But it is an alternative.

 

[Syborg Twin Turbo]

Re: Intake Option For Vortec Heads

personally i like Mikes option and it has the potential to look very nice