i was reading up on the mod page, and was wondering, the gold "ring" came off the tbi the other day when i was doing some work. and i was wondering how you got the air cleaner on with out it interferring with anything. i have an edelbrook open air cleaner with a big ole k&n filter. i think it's like three or four inches tall. it's huge. when i tried it, it with out the ring, it just didn't look like it fit right.

 

you can't use a drop-base aircleaner if you remove the ring.

 

You toss the ring and add this.

 

Fast, Where do you get that??? Thanks hwp

 

yea, where did you get that?

 

Hypertech and CFM-tech both sell a version of it. I ordered mine at Autozone from Hypertech.

 

Thunder Racing has them too

 

thanks ,hwp

 

Turbo City has them too, probably cost more though. They're stuff seems kinda high priced to me.

 

What type of spacer is that??

 

"A very effective air intake modification made by Hypertech. It uses an open and countoured design to maximize the air flow into the tbi unit. Get rid of that stock restrictive air cleaner to tbi adapter now! Designed for full size trucks - some modifactions may be needed for other applications for it raises air cleaner base approx 1" over stock."

- taken from cfm-tech (costs 45+shipping there)

I've heard claims of something like 12hp just from adding these, but, ya, no.

they can be useful though, you can use them for any air cleaner modification to both make the job easier, and flow a *little* more air.

personally I'd like to see it used on the rai/cai mod that very few people around here do and, including myself, seem to have a real serious problem with finishing, due to the sheer amount of parts and time involved to make it work right.

I still think it's worth it though, and this is one of the parts that can help make it happen.

cfm-tech also seems to sell the only stock looking air intake tubing available for such a design.

but we're talking about open elements right now, and I think with that spacer, since it raises the height by 1", you'd be required to use a drop base air cleaner in conjunction with that, and it would also be the most effective setup for flow, am I right?

 

On a 255 RWHP 350 TBI engine the hypertech power bowl was worth 10 RWHP with no other changes. Bumping the number to 265 RWHP. I don't know what my 312 would make without it as I haven't ever dyno'd it with the stock 2" restrictive as hell spacer on it. I need to take a picture of the stock spacer compared to the power bowl and let you'll see for yourself. Here is one I found on the net of t he hypertech powerbowl installed on a tbi. Notice how open the area around the injectors is.

 

Notice that a drop base air cleaner and the thinnest ring you can find will do about the same thing. Spectre makes some plastic spacer rings that come in a box at autozone. They are 5 1/8" in diamerter and start at like 1/2" and go to 1". My stock TBI van spacer ring is 3.5" tall and miserable for flow.

 

alright, I'll agree that with a fairly modified 305 you could see some effective results from the power bowl, but you can't sit there and tell me that you're gonna get 10+ hp at the crank on a stock engine, thats higher than most open element setups will give you?

if that's true, than you could get that, an open element air filter(especially if you went with an amsoil foam or k&n cotton filter), the tbi mods, and like, maybe a new muffler and be making 190+ crank hp on the stock engine, I'm having trouble believing that.

 

take it a step further and get a full catback, tbi injector spacer, maybe a properly setup rai/cai setup, and get a vafpr as opposed to prom tuning, and you'd theoretically be making 195, maybe 200 crank hp, it seems somewhat unbeliveable to me.

 

I don't find it that unbelievable. I dyno'd a stock 305 TBI from a cadillac fleetwood that was put into a 1987 chevy truck. With headers, dual exhaust, high flow cat, stock intake, ultimate TBI mods, and a custom chip using the cadillac 305 injectors (61 lb/hr), it made 181 RWHP and 268 ft/lbs of torque. That is around 230 FWHP.

I was able to make 245 RWHP from a 350 TBI, by using a VAFPR and the stock ECM. The idle was far from consistent though. Otherwise it ran okay. It had ported 305 HO heads and a Mellings MTC1 cam that I later switched out for a stock vortec truck cam.

http://www.chevytalk.org/threads/sho...ue#Post1031628

 

yes, but you're talking about far more extensive changes then I am.

the biggest change I mentioned was the catback, which can be gotten for ~200 bucks.

lets remove that.

you get the bowl, injector spacer, open element(non paper filter), and I guess we'll include the vafpr.

theoretically that's ~20 crank hp gain, but many people that do that around here don't mention that kind of gain.

also, I'm talking 305 here, 350's historically seem to be far more responsive to such simple mods.

 

I installed an open element yesterday, unfortunately I didn't end up with a base like those ones, but heck.. not bad though.

I think all those air cleaner variations just add a little bit here and there, maybe laughable for some people, for some not so laughable.

They may add 2 horsepower, they may add 10 horsepower.

2 horsepower will mean something at the track, not a lot, but can mean the difference.


I would say, if the mod is cheap enough, try it.


After all it's not all those mods offered by Casper's Electronics . where everything costs 80 bucks and do absolutely nothing or even hurt performance.

 

I somewhat disagree, I think throwing 30 bucks here and 40 bucks there for 3 and 4 hp adds up really quickly, and can be more effectively used elsewhere, but that's what TGO is here for.

I must say though, while a lot of these little things DO add power many of them add power now and make little difference later, and many others are vise versa.

you really have to look a a build from a finished perspective, to do it the most cost effectively.

also, many companies make variations on the same part, and some of those parts actually work, where where other companies variations don't, which can make things confusing...this is also where TGO plays one of its best roles.

 

So you can use the "soup bowl" with a open element air cleaner?

 

Agreed. Forgot to add that, something that may add as little as 2 or 3 horsepower now, may open up for the entire engine to add more later on once more mods are done.

BIG exhaust (ok bad example but oh well) add yes quite a bit, most likely not as much as a properly tuned exhaust, i.e. well matched, but do more and more engine mods, and it'll bring it all out.

 

Those mod's don't add power, they just bring out what's already there! It's called effinciency.

 

um, that could arguably be said about every single mod you ever bolt onto your engine, the whole goal is to make the engine as efficient as possible, if you think about it.

 

oh hey fast, I dunno if I asked earlier, but is that black thing on the power bowl a vaccum line, or is maybe a place to put your IAC sensor? or is it something else?

 

I think that's where you hook up the air temp. sensor. But, I've been wrong before!

 

Its for the PCV Vent tube on trucks.

 

by IAC i meant air temp....but you answered my question anyway.

i'm guessin no by the pic, but do you think the air temp sensor would fit in there if you took the hose out?

 

If I use this with my drop base open element air cleaner with a 2 3/4 element will i have hood clearence?

 

Will that thing work on a 454 TB?

 

And what size of air filter did you use?Is it 14x3?

 

Does the drop base air cleaner, bowl base (as I call it ), raise the air filter assembly anything ? It looks like it would decrease space between top of air cleaner and hood, by what, 1/2 inch to 1 inch ?