ok so as you all know i have a 91 camaro RS, mystery engine, put up with my obnoxious hell, TBI 305 or 350 dk and this might come out as obnoxious as it gets but dont let this ruin what i might have found is, more HP. I know in this 700r4, the first gears are lower than the one in a TH350, i have poked around and i have a tach now... My camaros been a good boy up intil the other day when i was a bad boy and thought hey why not cut the catylatic convertor off and the muffler system... Well no ones pulled me over thank god.. So i still have the Y pipe, and everything except for the cat back, right at the cat is where i hacked it.... I then put my bad boy to the test also... I jumped on it 1st gear, moving at 15 miles an hour, hit 6000 in a mil sec, cars side ways screaming and i have valve float..... Yea so i have found more power, now my idea is cherry bomb it and thats all.

 

ok then...

 

 

sounds like a loud annnoying car

 

Just goes to show how stuffy the stock exhust system is....get a good pair of headers, a H.O. Y-pipe and a good cat back system. You and the neighbors will like it better.

 

So.....You cut out the cat & are now running an open exhaust now? Nothing like performing a Federal Crime in search of horsepower!

It is now just loud. Faster, but not FAST! Noise level increase does not equal power.

If it was a 20yr old cat, I have no doubt it was not flowing good. 1991 technology wasn't exactly the best at flowing cats much less with 20yrs worth of "clog" inside.

Put on a good Hi-Flow cat & it'll be a reasonable sound level & you'll lose like 1-2 horsepower max. And still be legal to drive it.

 

Sounds totally awesome man! I bet you'll be getting all the ladies with that obnoxious setup

 

sounds awesome to me. I don't know why any of us put on headers when all we had to do was hack off the cat back.

 

Sounds like a very familiar story kids around here have these hondas which all have cutouts before the cats LOUD as anything BUT they dont go anywhere.My 20.5hp craftsman lawnmower pulled him of the line.Kinda of the dodge ram hemis too they are loud but dont go anywhere.I doubt you gained anything probably just the sound that makes you think that sound doesnt equal hp.Just like how ppl think true duals on a stock vortec 350 or tbi equals hp it doesnt its over kill.

 

Thats good constructive advice. Running a High Flow Magnaflow Cat with the above would put you right were you want to be.

 

I got the cat back. Now to do the rest of the system.
To the O.P. 6000rpm? Really? The RS came with the L03 5.0 by the way. Unless someone swapped it.

 

thats what i was thinking maybe the engine that has been in there is 350, it has been to 6000 and back more than you can count on your hands and toes ive even dropped it to first driving high way speeds being a morron, she screamed then, . But yea, it really dont sound that bad and these emission cops dont really do anything in lincoln illinois and im not planning on going out of state anytime soon... It doesnt sound all that bad at full throttle, it sounds mean... thats why imma put a cherry bomb glass pack on it and call it a day, it will have a quiter tone at idle than ya know what they do at open throttle.. It dont sound like no rice burner thats for sure LOL P.S im gonna show yas a video of how it sounds if your intrested, ill show you the engine blah blah then show the tach reading 6000 for proof.. It will be when i get a new truck TBI, cause the one went out ill keep yas posted

 

Just stop. You're ruining my cars reputation. Do it right or buy a different car. What happened to the days when kids thought just slapping a sticker on increased horsepower? Now we've resorted to just making cars as loud as possible? Pathetic. There's an exhaust on there for a reason ...

 

you do realize the factory tachs are simply a needle that moves around to show that the engine is reving up right? its not very accurate at all.

and if you actually dropped the car into 1st at highway speeds, the trans and engine would be dead now....

 

Even if you slammed it in first going 80 mph it wont downshift until it reaches a safe rpm,assuming it's an auto trans.

Get a high flow cat and a nice muffler,stop hacking it up and do it right.Get some headers while your at it and make it sound good.I took my cat out and welded in a piece of straight pipe and put a glasspack in place of the muffler.It sounded awesome,but now you don't even have that option since you already hacked everything up.Ever notice how annoying cars with exaust leaks are? Yea,well I'm sure yours is the same way.Trust me it may sound good to you now but I doubt you will be able to tolerate it for long.When I took my cat out I floored it back and forth down the road a few times,it sounded like a pile of poop being blown out of a straw.If you're going through the trouble to do it,do it right.

 

you will lose power that way and make an awful lot of noise doing it. Put a cat on it man.

 

musicfreako im sorry i ruined the rep of your car. If you like to hear the facts like ive heard, it doesnt have a very great performance rep anyways. Im not just looking for the performance but also some gas milege, gas is liquid gold, and owning a V8 makes it harder. I decide to have a sbc V8 cause i will not part with one. Camaros are supposed to be semi toned loud, atleast i think... And why does this car need a Y pipe? I dont get it at all. Everyones running duels but yet this certain car needs a Y pipe holding back? I have the exhaust pipe to now run duels, with an X pipe

 

its not factory tachometer, its a sunpro, i hooked it staight up into the coil. My whole gauge cluster is screwed, im gonna replace em all. And i couldnt tell but this is b4 i installed this tach. It was in 4th and yes i did slam it. Im surprised they aint dead either.

 

Everyone is running duals being fed from a single tail pipe a y pipe just like you. True duals are very hard to accomplish in these cars. Very few have. And I know these aren't high performers. I own one. I like the thought of owning a rare car someday. One people can respect and enjoy looking at. Its sad to see how many of these cars just get hacked up. Do it right. Do it nice. And we will compliment you. Hack it up. Beat the **** out of it, and generally don't care for it and you'll get flamed. I hope you restore it to its original beauty. We need more of those.

 

A ypipe is not holding it back. Plus true duals are very difficult to install and our cars are low enough to the ground as it is. Our car's dont need true duals.

 

Ok well, i have three 90 degree angles, and some 45s. Ik this might seem green of me to say but i believe duels arent impossible with a keen eye.
And i see your point, i am sorta going hog wild and obnoxious. Well dont worry bout that one buddy! Im gonna have it looking nice, at a good time. And yes i plan on having it 10 more years, and maybe even longer. Its gonna be totally restored by then. Ill even have a built engine it by the end of the year. Not better, but better in HP atleast

 

thats what i was thinking the Y pipe was for inertia in the exhaust to cause a vacuum at higher engine speeds, its a theory ive seen on the web. Have you heard of this before? I seen some articles about exhaust flow on the net of theoretical exhaust inertia, and they say people would rather super charge or even turbo there car before fine tuning an exhaust to do what it has capabilitys of doing...

 

never heard of that before.

 

A single 3" exhaust will let the engine breath just fine with some good headers and y-pipe.