I have a 92 camaro Rs v8 305.
Any suggestions on how to add more performances like a supercharger and is it a good idea??

 

the first mod needs to be headers and cat back exhaust.

 

Open Air Element

 

dont bother with a supercharger on the 305 if your only goal is power you will need an engine swap, but the 305 can make decent power and is hella reliable, i'd remove all the emissions crap and get blockoff plates keep it oiled and maybe get a new carb/intake, like mentioned headers and exhausts new filters, it'll look good run strong and last a LOOOONG time

 

It is a FI car, not an early carb one like yours. Carb swapping is illegal on a street car.

Don't start by suggesting people break a Federal Law by removing stuff that does nothing to reduce horsepower or performance. Performance can still exist with all the emissions parts in place. Some states & areas within certain states are less restrictive than others. Let us start by knowing the OPs location regarding he law & his performance goals ie:straightline/autocross/road race/daily driver/weekend toy. All of those have different needs.

 

Sucking in hot underhood air is not how you increase performance.

 

It may be hot underhood air, but it's more air. My open element gained me 10hp over the stock air cleaner. Granted not a lot, but an increase none the less...

 

Unless you dyno'd it before & after, your just guessing at the hp # & is likely nowhere near tyhe 10 you claim.

Did that myself years ago. It helps be because the stock setup is like running a marathon while breathing through a straw. Now use a sealed setup to duct in cooler outside air. Do it once & do it right. You'll spend less $ on mods in the long run.

 

By my calculations hes running 2.73 open differential. After tune up and basic up grades that were mentioned (The full exhaust and a open air element)IMO I would decide what I want to do with the car and then replace the 2.73 open differential with a decent ratio and install a posi. unit as my first performance upgrade.

 

Your making assumptions. I've had two 305 TB RS.....Both were 3.08 not 2.73. And a 4th gen rear or swapping to another 3rd gen rear is the fastest & cheapest way to upgrades the gears/posi & brakes in one shot.

This thread is full of Epic Fail in the advice he is getting since we know very little of what he has & nothing about what he wants

After all these years, let us not start by assuming the car is 100% factory stock. May well already has tons of stuff done to it. Let us find out the specifics on the car, before we waste our breathe on what to do.

 

Sorry,your absolutely correct . I should have said " check the ratio.that is I the car now".
It would be nice if the OP would give us as much info on the car he has.

 

Exactly how I did it. My bone stock LO3 put down 142hp and 225lb/ft when I did a baseline dyno run. After installing a headers and 3" exhaust, the motor put down 154hp and 227lb/ft. The open element numbers after are 165hp and 244lb/ft.

 

its an rs, thought they were all carb/tbi (lg4/lo3) ?

in what state is carb swapping illegal? a single party state jk jk anyways all i knew was that his goal was power an alot of the high hp/racing builds on the board don't run emissions equipment. sorry to be so ignorant although we actually KNOW very little about where he is who he is how much $ he can spend or what he truly wants, and its odd that he hasn't re-posted

 

What about if it had a 350. Why would a supercharger go better than on a 305?

 

look at some of the 305 vs 350 threads on here, it all ends up coming back to the 305 just generally being weaker, because of:

2 bolt main rather then 4 bolt
smaller diameter bore
less cubic inches
performance parts for a 305 are kinda hard to find, where as 350 parts are everywhere, i know i know what'll fit a 350 will fit a 305, but in most cases it is more expensive to make power out of a 305 then a 350, its because of the abundance of 350s, where as alot of 305s if not in there original cars, are probably boat anchors by now or holding down the ground in scrap yards, my neighbor chuckie has a junkyard and atleast 15 305s just sitting in an old semi trailer, he has one full of 350s too but thats rotating stock lol, and one full of 3x00 series v6s but back to the point, basically the supercharger would do its jb on the 305 it would forceifully induce more air through the engine, thus creating a larger need for fuel and creating more of a burnable mixture in the combustion chamber and causing more combustion, in plain english, higher rpms, more power more torque, but more wear and tear on the engine, and it would do all of that with an almost unchanged amount of wear and tear on a 350 more, used to be there was no replacement for displacement (larger engines) however in recent years it seems there has and its a revolution (turbos, get it because the "spool" in a turbo spins) oh well i thought it was funny