Zz4

[silver 80]

Well what does everyone think about all of the extra stuff to put on it.
Should I just go with a 14" open air cleaner or put the old stuff back on it.
To EGR or not to EGR?
all of these thermo vac switches.......
any input would be great.
tom
:bar

 

[vettedan]

You probably have enough valve over lap with the ZZ4 cam that you will not need your EGR. You should pass emissions. Go with a new edelbrock carb. If you don't drive in extremely cold conditions, than I would go with an open element; otherwise, keep the stock air cleaner with the snorkel door. This will keep your carb from icing in the winter.
Dan

 

[Hijinx]

Silver, I hate basic open element air cleaners. Boring. Top that nice new ZZ4 with something really cool, like one of those Holley Hi-Tek cleaners. I did that just recently and it really looks awesome!

 

[Stallion]

"than I would go with an open element;"

What do you mean by "open element"? You mean with no air filter, or what? So, the air filter goes directly to the carb? Is that how that setup works?

Thanks!

 

[Hijinx]

Open element refers to an air cleaner with a top and a bottom, but open around the sides. Most chrome air cleaners are open element (like the ones you see in a performance parts catalog, or on most performance cars).

Production vehicles normally come with closed systems that incase or house the air filter in a box or container and provide an intake of some sort via a small opening. Open element filters provide more air to the carberator, thus making more horsepower.

 

[silver 80]

Thanks for the input guys.

Hijinx, do you have a pic of the hi-tek?
I think I'm going to try the old Q-jet, and then if it doesn't work out I'll go with a different set up. Have you heard anything about the street demon?

vettedan, thanks I'm going EGRless.

tom

 

[Hijinx]

I will get a pic of the Hi-Tek and post it later tonight. I know of the Street Demon, but I have the Speed Demon on mine. Take a look at my current Shark Bites column for info on the Speed Demon swap I just did. The Street Demon is a milder version of the Demon carb line. They now have a Jr. Demon as well.

 

[MoeJr]

Rebuild the Qjet and use it. Do not try and rejet the front of the carb for more fuel only the secondaries. U can get some secondary rods from GM or Edelbrock. Probably gonna want a pair of "CE's" which have a .041 tip. A properly setup QJet is the best carb for Street/Strip performance. Also drill out the plug on the top front of carb so u can adjust the power valve for off idle performamce.

 

[Hijinx]

Here is a shot of the Speed Demon;

 

[Hijinx]

Here is the Hi-Tek air cleaner installed;

 

[vettedan]

Hijinx
Nice looking set up!!!! cool

 

[Eric]

Here is the Hi-Tek air cleaner installed;

Wow! Rod, that is really sweet looking, never seen anything like it before. I'll bet it gets you plenty of stares and comments. How much did that Hi-Tek set you back?

- Eric

 

[Hijinx]

Too much! I have the original one made by B&M. I got it off of a local shop that had it on a shelf for two years for $170. The new ones from Holley will run you around $210 from just about any mail order house.

 

[Stallion]

Why would anybody want to have a closed air filter if open element is better? Any benefits if it's closed, maybe?

Thanks!

 

[Hijinx]

Mainly to reduce noise. Car manufactures want an engine that you cannot hear. Therefore the closed systems keep the noise down. This is one of the first things most people into performance change.

There are two things that can help air flow into your engine. One is the open element. However, on older cars making this change was cheap. You pull the original air cleaner and get you a 14 inch open element filter. On newer cars, there are air boxes and sensors that can make this change difficult and costly. Therefore, most newer vehicle owners will opt for something along the lines of a K&N filter. This is an oil impregnated filter that has higher air flow features than an OE element. They can make this change and keep the vehicle stock as well.

 

[Stallion]

Thanks for the explanation, Hijinx! Do Vettes come with a stock open element? Or is a closed the default for them?

Thanks again!

 

[Hijinx]

Pretty much every car comes with a closed element system. However, some early Sharks came factory with open elements.

 

[Stallion]

So it's benefitial to put in an open element filter? Is that the norm when you get a Vette? Thanks!

 

[silver 80]

depends on how you look at the vette.
some people are into originality and other people are into making it into the way they think it should have been made.
Me.... I fall into the second cat.

tom

 

[Stallion]

Yes, that seems to be the big deciding factor when you are planning on restoring/modifying your Vette. I'm not sure yet where I fall in. I've got some time to think about it before I get my Vette.

Thanks!