getting rid of the upper intake?
 

would it be possible to weld six pipes to the lower intake leading up to another pipe that connects to the throttlebody? I see engines with seperate intake runners all the time. I guess you would have to do something about the coolant passages and the vacum line but why now? I know hector tried something like this but could this work?

In theory? YES! It could! In practicality? Probably not!
You're looking at alot of R&D headaches here design wize too. You have to compensate for the EGR System, EVAP System, PCV System, as well as the obvisous Fuel System & Air Intake System. You're also looking at keeping the "FLOW" regulated between ALL 6 "Tubes" too. Otherwise one cylinder (or more) will burn valves due to either being too rich or too lean.
Just something to think about..... :wink:

If you rig up a variable length intake system you will see many gains though :wink:

building a custom intake takes a lota R&D and someone who knows the ins and outs of desgin and practical uses.....mine was build by Elite Auto...a full on race shop custom you name it from there...custom intakes outflow stock by gallons of air lol...if you want to do it just don`t try it at home ...unless you really know what you are doing trial and error on your engine ....not a good thing may work and may go boom

3800 F-Body Intake
 

Ok, doesn't apply to me, but does kind of to the thread. Have an of you L36ers tried the F-body metal intake and throttle body setup on your Bonnies? At the least, if it works, it wouldn't crack and leak coolant into your engine :wink:

They are RWD i think, the engine is different. I was thinking about the upper intake on the turboed GTP that intense/ZZP has (I cant keep them straight). Anyone else know what I'm talking about? It looks like just a cover.

Yeah, I knew that the F-body was RWD, but thought that it may work on the FWD 3800s. Plus, it looks to be a better setup for high RPM (shorter runners, it's metal so you can port it).

I like theoretical questions :wink:
http://www.supersixmotorsports.com/N...k-Complete.jpg
Oviously this isn't stock, but it's a set of ported L36 heads and Manifold from a F-body 3800, and IIRC their lower manifolds looked identical to the FWD lowers.

This is the Intense Turbo Mani

http://www.intense-racing.com/GTP/GT...0Schneider.jpg

Obviously, the intense one is custom, but I see similarities.

one of the major problems with the F-body upper, well... the TB is on the other side of the engine, put it on our car and there's a battery in the way...

Regardless of that, the coolant passages are in different locations. Simply ask to see an F body intake manifold gasket and you'll understand.

Thanks for the imput guys. I guess I'd be in way over my head to try this. But I'm sure someone will eventually produce these. It's only a matter of time really before intense or zzp tries to do something with it. :wink:

Another company has built one with adjustable-length runners (based on RPM). It produced crazy torque, and contributed greatly to the demise of the 4T65E trans that was under it. The cost was extremely high, too. It was never produced beyond that one prototype.

how much for the prototype? IMO this would be the easiest thing to sell to ppl, given the faulty factory one.

I don't think the adjustable runner design could sell for under $1k. It's very involved.

Yes but take in the cost of a replacement lets say $400, then add 600 to it for the performance gains :wink:

It would take some work and a large market to get ADTR to produce it. More testing would be needed first. Anyone is welcome to try to talk Hector into it.

We've done that for simpler things, and I don't need say anything else.

Ditch the S/C, go variable! :wink:

the ADTR one had adjustabel runners? How does that work? Wouldnt a fixed runner system be better? If the power really is that insane it would be great for our cars.

You want runner length to differ for low end vs. high end. Vacuum does the trick nicely.

how does this work? Does anyone have pics of one on a different car?

Hector's intake is a proprietary design, and there may be patents in the works. I'm not at liberty to share his ideas or the inner workings of the intake. I don't know a LOT about it, but I do know a bit of the theory, and that it worked. It was a major contributer to his 4T65E being transformed into a stool. He fragged it in a major way.

thats a good selling point if you ask me. "You want this much power? You can't HANDLE this much power!" I was thinking if there was a simular design on a different make of car. So the intake runner lengths decrease as the engine rpms go up? Is that how it works?

That's how it works. And I've never seen anything else quite like it. Hector spent alot of time on it. I'm not sure if he had that one on his car, or just a straight sheetmetal replacment, but both helped performance.

heck, I bet most people on here would be happy with a sheetmetal one, I know I would. The adjustable intake runner length is a good idea, if Hector doesnt have the resources to produce it he should sell the patent to some big company.