car sounds like a lawn mower?
 

well this could just be me being ignorant when it comes to turbo hondas, but why does my car sound like it has a lawn mower blade on it? seriously, it sounds like im ridding around cutting grass.

would it be because i have an external wastegate?

i'm pretty sure there isn't an exhaust leak.

i just wanted to make sure there wasn't something more serious going wrong

Re:car sounds like a lawn mower?
 

um more specifics would be great

Re:car sounds like a lawn mower?
 

My sound like that sort of, turned out it was a bad gasket that was fluttering a bit!!!!

Re:car sounds like a lawn mower?
 

maybe because the motor isn't that much larger than a lawnmower motor? ;D


and you better take your ass back over to cc.com and post pictures of your finished setup!

Re:car sounds like a lawn mower?
 

probably the external wastegate if you have an atmospheric dumptube

Re:car sounds like a lawn mower?
 

alright..

t3
tial 35mm wastegate
lovefab.com manifold
450cc's w/ s-afc hack
custom downpipe
fmic from johnnyracecar.com

anything else?

in low rpms (1-2.5k) it sounds fairly normal. like a n/a car with Apexi N1 exhaust would sound. when i step on the gas, it sounds like it's fluttering quite a bit and its pretty loud.

stargazer: :P i'm getting there. it's not finished so i'll be sure to get pictures posted when it is.

whitey: that's what i was thinking, but i wasn't sure. i didnt think the wastegate opened up until higher rpms.

Re:car sounds like a lawn mower?
 

its your wastegate opening. Pipe the dumptube into the downpipe and your problem is solved. (If its the sound that I think your talking about)

Re:car sounds like a lawn mower?
 

hah that would be nice except i dont think i have much room to run another pipe with my a/c being right there. ill try to figure something out

Re:car sounds like a lawn mower?
 

put a lawn mower muffler on your dumptube :)

Re:car sounds like a lawn mower?
 

does it sound like that only when you accelerate before boost or after... cause if it makes it before you hit boost you probably have an exhaust leak... and if it makes it after... its probably that your wastegate aint hooke up to nothing to quiet that bitch down...

I had a cracked manifold... and it sounded like a shitty lawnmower for about a week till i fixed it... its really emberassing... just like when your brakes squeel...

check for black soot... and thats most likely where the leak is

Re:car sounds like a lawn mower?
 

omg, i was on the ground laughing..

Re:car sounds like a lawn mower?
 

Are you even running a dump tube?

Re:car sounds like a lawn mower?
 

i dont think a dumb boob makes sense, i mean the bitches are crazy but there tits cant be thinking can they?





and just so i can be somewhat informative i can tell u that EITHER one of ur gaskets is leaking OR ur lovefab is helping u attain ur max psi early on and opening up the wastegate

Re:car sounds like a lawn mower?
 

look at your boost gauge, do you only hear this noise when your boost gauge hits the set psi? if so, it's your wg, if you hear it under load but before set psi, you have an exhaust leak somewhere.

Re:car sounds like a lawn mower?
 

my car sounded like that when I had a leak at the exhaust manifold gasket.

Re:car sounds like a lawn mower?
 

hah glad you got a kick out of that :P

thanks for the input everyone

and no i'm not running any kind of dump tube from the wastegate at the moment.

Re:car sounds like a lawn mower?
 

so are you trying to find out what the problem is and fix it? if so, how about some more details, if not, please post in the 'general discussion' forum. :P

Re:car sounds like a lawn mower?
 

Please don't :P

Re:car sounds like a lawn mower?
 

:-*

Re:car sounds like a lawn mower?
 

lol, now your going to be my bitch when you come in GD.

Re:car sounds like a lawn mower?
 

whoa whoa i'm not trying to cause any trouble here sheriff.. :P

yes, i'm trying to figure out what the problem is 'cause the noise is horrible.

"details" is kind of vague - what more would you like to know?

Re:car sounds like a lawn mower?
 

Re:car sounds like a lawn mower?
 

no, it does it long before i hit 8psi. so it's a leak somewhere. ok thanks

Re:car sounds like a lawn mower?
 

yeah, it sounds like an exhaust leak. how long have you had your set up on? has it done this the whole time, or did it just start?

Re:car sounds like a lawn mower?
 

it's been on for about a month and it's done it the whole time.

i don't see any leaks around the manifold. i'll take a closer look at the down pipe when i put it up on a lift tomorrow.

i'm wondering if my wastegate is still letting exhaust go by even tho i installed the O ring that i was originally missing.

Re:car sounds like a lawn mower?
 

i was going to say, did you install the o-ring ;) take all the vacuum lines off your wg, then let your car idle and feel if any exhaust is coming out of your dump tube, if not, put the lines back on and see if any exhaust is coming out of it, maybe a blown gasket somewhere? just check all your gaskets and bolts if the wg is working fine. i had a problem like this and couldn't figure it out, i finally tore the whole set up down to find the gasket between the turbo and manifold had blown out.

Re:car sounds like a lawn mower?
 

well lemme ask you this: right now i have the side of the wastegate connected to the comp. housing and the top open to atmosphere. i've read that if i hook the side up to the intake manifold, it effects the wastegate (usually causing faster spooling)

i'm wondering if the wastegate is running slightly open all the time because of the vacuum source and causing it to spool really slow. i don't hit 8psi till around redline.

Re:car sounds like a lawn mower?
 

alright well the o2 sensor is installed and so far the CEL is gone (knock on wood)

when i got the car up on a lift, i found the exhaust leak so that's better.