I got dual snorkel put on my car, doesent fit perfect, but i got it on.
Where can i get the hoses for it? Right now im running it with no hoses

Everyone seems to say get the Ebelbrock bored out to 2in where it connects to the TB, but I went to a shop and they said that theirs no point in doing that if the throttle body isent 2in. So can someone explain to me why its so much better when its bored to 2in? Or is boreing it out only if I got the 454 TB?

 

I believe that people bore it when they are using a 454 TB. The intake is designed to line up with the stock throttle bores. The best way to imagine it, would be kind of like gasket-matching.

As for the tubes, you needed to get those off the same car at the junkyard as you got the aircleaner from.

Go to autozone or pepboys. They usually sell some "r1cer" plastic tubing for intakes, that is accordian and flexible. Around here they have it in red, blue, yellow ect. See if that stuff will be able to stick on the snorkels with a hose clamp. If it does, all you gotta do is run the tubes somewhere cold. (Passenger side, where the wiring runs down into the fender well, is usually pretty cool. Driver side, IDK look to see around the washer tank or something.)

 

The scoops and ducts are nearly impossible to find, but perhaps a pic will aide in fabbing something:

https://www.thirdgen.org/forums/atta...leaner-all.jpg

JamesC

 

Alright, so I guess the shop was right that I dont need it.

Im taking my car on monday so they can weld my muffler in [its got brackets now and their leaking a little] and so they can hook up some sensor onto my new dual snorkel thingy.
When I go their gonna tell me cost of having the intake manifold put in along with an LT4 camshaft. Thats going to be in a couple months though after I get my computer put in and get the hang of that.
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Ah, thanks. I might want to try to somehow pipe it down so it scoops air from under the front fender getting some cold outside air, kinda like an upside down ram air i guess. Something like slow said i guess.

 

Be careful about running the tubing anywhere where there might be water (like a deep puddle) that could turn your intake into a siphon hose into the motor.

 

Will that even work? LT4 Hotcam, with swirlport heads? Seems like a tuning nightmare, idk. I would be interested to see what the experts say.

Have you considered doing heads? I was looking at it, and there are some brand new vortec's available at a decent price. If you are gonna pay for all the labor to put a new cam in, might as well change out the heads to something that will benefit more. Also, if you get vortec heads, you can get the GMPP vortec TBI manifold, which is supposed to be really nice.

 

Considering Fast355 has nothing but good things to say(besides tuning) about the HOT cam, ESPECIALLY for a 305/TBI and its swirls, I have not even considered any other camshaft, other than a ground-to-my-likings cam from COMP or ETC.

Remember flow charts proved the swirl-ports were nearly second to none below 4k. And for a daily driven street car that sounds perfect.

To quote "305's like to be over-cammed."

 

Well the LT4 cam and the intake manifold arent perfect for each other. Intake manifold makes power from idle too 5500rpm and then the LT4 cam makes power like 1500rpm to 5800rpm, but their close enough I think and will do good together with the EBL Flash computer im getting like next week prolly.

The heads im unsure of, I was going to get the cheap Vortec heads [like 250$ each] but im not sure which ones would be best in the set up im going for.

But the Edelbrock intake manifold isent as good as the Vortec one? I thought the Edelbrock was the only direct replacement?

 

Vortec's have the intake ports in a higher location, so that the airflow has a better path (this is just my understanding so far). Also, vortecs use a different bolt pattern to bolt the intake to the heads.

So if the LT4 Hotcam is so great in the LO3, how hard would it be for a beginner to tune for it? I really like the way it sounds in the LT1's; it has just the right amount of rough idle. Would it be drivable in a 5-spd car, or would it require excessive clutch slipping?

As for the stock swirl's vs. vortec swap, I was under the impression that vortecs were very good at low end torque too. And I thought they were supposed to be far superior in the top-end pulls. If I am wrong please correct me.

The way I see it, you are gonna have to get the heads "worked" at a machine shop either way. Even the LT1 cam (I think) has too much lift for vortecs. If I was gonna have to pay to get head's milled, I would rather drop the extra coin and get a new set done up, not the stockers. Or even better, buy a set of new vortecs that are already worked, from one of the performance websites.

Either that, or you could save up for some top dollar alum's like AFR's or Trickflow. But I cant justify that when I see the power people make on Iron heads designed by GM.

 

#1 Very hard, most people thought it would be near-impossible to tune. (Quoting Fast355 here) I would strongly suggest learning to tune on a modified-stock setup for a long time before swapping the cam in. I plan on using this whole year to learn to tune before I swap anything besides my headers.


#2 Unfortunately I know nothing about manual cars and how it would be in it. Fast355 always had a 700r4/460LE? or similar behind it.

#3 From what I can gather with my limited head research, vortecs are the middle grounds heads. A little better than stock, nothing near AFR.
But considering what stock heads can do.. (#5)

#4 Exactly! If you spend even $200 on the heads getting them milled and what not, thats already about half for a set of good vortecs, or hell, world products torquers.

#5 mw66 has proven that there is a lot in the stock iron heads. Mildly-ported and running mid 12's. Imagine a full port with every little thing cleaned up. While it is worth to drop the $ on a pair of new vortecs or similar, if you can port them yourself, there is no reason not to use the 081/416 castings to achieve power. (There is no power in the swirl port heads, if power is the only concern then STAY AWAY from these heads, I am speaking on these in terms of a beafy daily driver.)

 

"Every 90 deg. bend cost 15% air flow. Keep your bends gentle and to a minimum" From ram air box assembly instructions.

I tought this could help.

 

Yeah, thanks. i would like to get metal pipeing bent to fit on the air box and just bolt it to something, but im still not sure what ill do. Ill prolly go to the junk yard on saturday to see if i can get lucky and just get the original tubes.

 

The sun and moon will need to be in alignment before you luck into a set (though looking can't hurt). You can purchase both scoops and hoses, for a rather dear price, here:

http://www.ramairbox.com/

JamesC

 

Well if that were the case, hw would have found a set last nite at 10:00 pm when the moon disappeared.

 

Thanks a ton for the link. I guess ill just order it from there. Might be pricey, but looks like exactly what I need. I had to beat the bottom of my passenger side in though to fit over the emissions stuff, lol. But If I just clamp it on their it doesent matter, hah hah.

 

It's not the HOT cam that fast355 is using, it's the PRODUCTION LT4 cam. it's alittle smaller than the hot cam.

 

Well I think ima get the HOT LT4 cam and the edelbrock intake manifold.

Any idea on what heads would work good with those?

 

I wound up ordering it from them. 241$ shipped, yuck.
Very very expensive, but I think itll look nice : )
So it was almost 300$ to get my whole dual snorkel thing going : (

 

I did not say he was using it, I said he had good things to say about it.
Timothayyy: Sorry for hijacking your thread, that seems a little steep for those hoses.. if you can get pictures of the quality of them for when they come in I would appreciate it.

 

Good night ladies! I have a dual snorkel box with new vac motors, heat sensor, a KN filter, various rods/hangers along with like-new scoops and ducts (bought them while GM still had them in stock), which I've apparently been hanging on to for much too long!

JamesC

 

Yeh, ill post some pics up whenever they come in.
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Yeah, when people say their worth money.... they are not lying, lol.
I still cant believe how much it cost.... but i doubt im ever going to replace it, so i guess it was worth it? lol

 

The dual snorkles is a good idae and looks nice but the filer box's neck is a nightmare, that set up will cost you plenty of $$$ and stil need plenty of woork on the base.

This is the best set up I ever had.

https://www.thirdgen.org/forums/tbi/...ir-intake.html