Im thinking about supercharging my 84 camaro within the next few months. It has a 305 HO. Is there a certain cam i will need? My brothers got one I can get from him, I don't know if it will work or not. Here's a link: http://www.jegs.com/i/Comp-Cams/249/...oductId=746624 . It also has a quadrajet on it, just rebuilt a couple months ago. Will I be able to use it or will i need to upgrade to something else? Also is there anything else i will need to know when adding a supercharger? And does anybody have a kit they recommend or is it better to pick and build?
Thanks

 

Somewhere on here it says that our lO3s aren't good for supercharging, something with being wet or dry or something like that, I didn't pay much attention cuz I like turbos better. I also heard one thing supercharged cars need to consider is hood clearance. Sorry I'm not much help!

 

he has an L69 not an L03



what kind do you plan on putting on? a centrifugal*sp? or a roots style?

and i'll need someone else to chime in, i'm not sure if an L69 makes enough power for a supercharger?

190 hp though with a cam, exhaust, ~220?

 

I was thinking about a centrifugal one. And after you saying i may not make enough power i started thinking about putting a turbo on it instead. My friend has a turbo off a volvo truck. Its a 71 trim. That i can get pretty cheap. If i do a rear mount kit would it be to big? Or does anybody have any suggestions

 

There should be NO problem supercharging a 305. You will have to use a smaller lower/bigger upper than a 350 but at the same time the super for a stock to stockish 350 should be good for your 305 as well. There is actually a B&M install on a 305 with a roots type supercharger in the technical articles section of the main page. A good cam will help you out immensely I would recommend something like a 214/224@.050 grind if this is a budget vehicle, a nitrous grind or something along those lines. This will help evacuate the exhaust. Besides this I would ditch the stock exhaust system end up with something like 1 3/4 or even 1 7/8 headers, and a full dual 2.5 inch exhaust system to get rid of the exhaust.

 

Ok. I read the article that was in the technical articles. If i was to get a kit like that would i need to get different heads to lower my compression? Right now mine is 9.5:1.

 

9.5:1 is just fine for supercharging.

 

I had a paxton on my 89 305 formula thing was a beast

 

So if i do supercharge it will i be able to use the cam my brother has?

 

Why supercharged? Why not turbocharged?

Turbos offer far more adjustability for day to day driving. They can be somewhat harder to install because of some fab work, but the reward, to me, is much greater than with a SC.

 

SC = instant torque

tc = turbo lag

 

Turbo lag is almost an archaic term these days. With modern setups with ball bearing turbos, unless you're putting a turbo from a big rig on the thing, lag is virtually non-existent.

 

Theres no such thing as lag in a remote mount turbo. Im lookin forward to get the setup from sts, before i start saving for my lsx swap.

 

Welcome to the Turbo board!

I think Drac0nic already answered your cam question best. Not sure, but I think most of the "XE" cams have an LSA of 110 or less. You need something a bit wider in the 112 to 114 range with about a 10 degree or more longer exhaust duration (like a nitrous or small blower cam).

EDIT: Also read the article Damon has....it's helpful, esp. if you're contemplating a Weiand 144.

 

Yeah, maybe back in pre-1990s (of course there are exceptions) lag was a big problem, but nowadays its just not really that big of a deal. Sure, if you're going to drag race the car all the time, you'll want either a big sinle or twins and they may take a sec to spin up, but you're going to be bringing the rpms up to sit on the converter anyway... On the street, its a little different animal. Most of the time if you're moving already, lag is really nothing noticeable. The thing I LOVE about turbos is the adjustability.

In my SRT-4 I can go from stockish 10-13lbs of boost to 20lbs with a turn of a ****... The difference is insane! Aside from some supporting mods to handle the extra boost and deliver adequate fuel, making a turbo adjustable is fairly cheap. AFAIK, An S/C setup can only change when you change the pully(s).

 

Nowaday's people can run wastegate's on the intake tract with a centrifugal supercharger, they will then pulley it up to the maximum, then control boost with an EBC from inside of the car just like any other turbo setup....

 

at this point its like why firebird? why not camaro?

some people have different tastes

 

I guess if you can stand all the noise of the extra air coming out at high speed then it is one way to get it done.