WTB-a-Hawk

I hear this sound , i can't really describe it. When i am accelerating through like 1st and 2nd. Once i hit anywhere between 2k and 2.5k rpms, it makes a weird sound. Can't really tell if it is from the exhaust or motor. Once the rpms get past that it stops. Any ideas.

WicketMike

iTrader: (13)

probably just rasp from your exhuast

WTB-a-Hawk

That is what i was thinking but i'm pretty dam sure i have SLP , dual/dual exhaust. I didn't think it had any rasp, from what i have read. Maybe i'm wrong.

DaddySS

You're going to need to give us more info on the sound - buzz, hum, drone, rattle, etc. Any gear, accelerating, decelerating, cruising, hot cold, etc.

WTB-a-Hawk

I really hear it in 1st and 2nd. If i was to imitate the sound. It would sound like i was fluttering my toungue to the top of my mouth. Mostly in accelerating. Does it hot and cold. Sorry for lack of details on first post. I'm still a newb

WTB-a-Hawk

anyone?

slik98z

have you ever heard a pick up truck with s et of glasspack mufflers in it? it has kind of a metallic rattling sound, almost like a hint of fart can in there. if thats the kind of sound you are getting its probably rasp. also check aroudn the i pipe where it meets the Y pipe (right behind your passenger seat under the car), look for a black spot on the metal and/or water dripping out of it. could have an exhaust leak that is making a putter put kind of sound maybe, just giving you possibilities.

another question...doyou dislike this sound its making or are you just wonderign what it is just to make sure nothing is wrong?
Travis

WTB-a-Hawk

I'm hoping it is only rasp. I will look for a leak tomorrow. I really don't like the sound and yeah wanted to make sure nothing is wrong.

blk~2000~Z28

I have LT headers and SLP loudmouth so every exhaust sound is magnified. The RPM range you listed is the most god awful range in my car. For daily driving I have to short shift and sometimes skip a few gears to avoid that particular RPM range. I have to say that you are probably just describing RASP.

WTB-a-Hawk

Yeah, the longer i stay in that range, the longer i hear it. I usually just put the pedal down faster so i get through that range quicker or don't let the rpms get there at all. LOL. Man i hope its not a leak or anything.

slik98z

if its an exhaust leak, they are easy to fix, no biggie. i doubt it is, its probably just rasp. so dont sweat it too much dude.
good luck
Travis

Z28Venom

iTrader: (13)

You're describing RASP.. I just got my LT's, ORY, and Rumbler installed.. At idle I love it. and the low RPM's are nice, but when I get to 2k-2.5k... It sounds like a damn wet fart. I'm thinking of adding a BORLA to my setup..

Dal1as

Is it an exhaust noise. I ask because I noticed that the spring underneath the passenger seat vibrated at the same rpm's making a strange noise in my car. Not to mention the short shifters (if you have them) can let though some strange noises. Just a thought.

BLUEBYU

iTrader: (1)

Air system check valves. Surprised nobody has nailed this one yet.....

WILWAXU

iTrader: (6)

I agree..

Here's the fix.. http://riptide63.homestead.com/restrictor.html

WTB-a-Hawk

Ahhh, if i were only good at working on cars. I hardly know **** about them. Wonder how i will fix this. If it is indeed the whatever valve you are talking about.

WTB-a-Hawk

I actually looked at how to fix this on that link. It doesnt seem that hard. He explains it pretty well. The only problem is that he says to replace the check valve. I doubt i could figure that out.

wfols1

No need to replace the Check Valve just do the Restictor Mod!

I had this same issue when I had my SS Camaro and I called the Company I bought them from----They sent me out these Restrictor plates FREE!

I would recommend contacting your Vendor FIRST!

WTB-a-Hawk

So basically once i get the restrictor plates. I unbolt the two bolts. Clean the old gaskets off. Put the restrictor plate in between two new gaskets, then bolt it back up and thats it? Sounds too easy. My luck i would screw something else up.

WTB-a-Hawk

So basically once i get the restrictor plates made or sent to me. I just unbolt the two bolts of the flange. Remove the old gaskets. Then slip the restrictor plate in between two new gaskets , then screw the bolts back in? Sounds too easy. I would probably mess something else up.