improving horsepower in my 305 TBI
improving horsepower in my 305 TBI
I was wondering what cheap and easy things I could do to my 1992 camaro rs tbi. i was thinking about taking off the smog and air pump and emissions to gain horsepower i mean I wanted to just gut the hole thing out and take off all that wasn't necessary and to stop weighing me down but then I thought of the old computer and I have a feeling that it will mess it up. I'm about to say the heck with this newer stuff and get an older one. so if anyone can help please tell me what I to do and what not to do on improving my horsepower I'd be very happy.
Senior Member
Joined: Dec 1999
Posts: 770
Likes: 0
From: San Antonio, TX
Car: 86Z/92 RS Camaro
Engine: 357 vortec finished. need tuning
Transmission: Still works
Axle/Gears: need 3.73
May want to do a search on this topic. But the one thing you can do relatively cheap is go with an open air element.
you can remove the smog pump, and all the emmissions without throwing a code...trust me on this one ive done it...there is even a black box with electrical connections you take them off and still no code. also do the ultimate TBI mods and get an open element...you get much better throttle response and add a couple ponies. then do exhaust (headers, high flow or no cat to high flow muffler) those are the first things i would do with your car
Senior Member
Joined: Oct 1999
Posts: 6,621
Likes: 2
Car: 91 Red Sled
Axle/Gears: 10bolt Richmond 3.73 Torsen
Removale of the EGR system WILL through a code. Just remove the smog pump, air tubes etc. Might want to clamp off the one going to the cat. Definatly do some of the cheapest mods like the open element for $15!
Member
Joined: Sep 2000
Posts: 406
Likes: 1
Car: 1992 Camaro RS
Engine: 355
Transmission: th400
Axle/Gears: 3.89
you can get a chip for it
i have a hypertech thermomaster with 160 stat for sale $75 with shipping email me if interested camaroracer1992@yahoo.com
i have a hypertech thermomaster with 160 stat for sale $75 with shipping email me if interested camaroracer1992@yahoo.com
Member
Joined: Jan 2001
Posts: 239
Likes: 0
From: Temperance, MI
Car: 88 GTA + Dakota on N20
Engine: 383 4 bolt
Transmission: 700r4
Not positive but i heared if you remove the AIR that the cat will clog so you have to gut that to. But hey theres a bit mor horsepower.
all the air pump does is heat the cat up alittle faster i dont think it affects it much. soon as i get the money to get a y pipe made im going to drive my car down with open headers and have the y pipe made and not run a cat
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Supreme Member

Joined: Oct 1999
Posts: 2,977
Likes: 1
From: Davison / Troy ,Michigan
Car: 1991 Pontiac Firebird
Engine: 3.8
Transmission: 700r4
Axle/Gears: Dana 60
Hey man, I made a site just for people like u that are just getting started on their engines. So far everyone that has gone there, liked it and finds it very useful. My ignition page is down for right now but if u have any questions u can post here or e-mail me. The page has descriptions of mods, what they do, part numbers, install instructions, do's and dont's, pictures and if they were worth it or not. Its the second site in my signature, good luck and have fun.
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