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View Full Version : burning out valves?

Medicom3
08-03-2011, 06:28 PM
So I've heard if you run 3inc cat back exhaust or any bigger pipping on a stock ka24de nothing done to it, it will burn up your valves?

True or false?
herbieS13
08-03-2011, 07:23 PM
wth who told u that
Medicom3
08-03-2011, 07:31 PM
wth who told u that


I was buying some gasket exhaust for my s14 and this dude who was helping out ask what kind of car im putting it in. Then he ask me how big is the pipping of my exhaust and i told him 3 inch. then he said "your gonna burn up your gasket because you dont have enough pressure on the exhaust and it will cause your valves to burn up"lol
Def
08-04-2011, 03:56 PM
That guy is an idiot.
codyace
08-04-2011, 03:57 PM
I was buying some gasket exhaust for my s14 and this dude who was helping out ask what kind of car im putting it in. Then he ask me how big is the pipping of my exhaust and i told him 3 inch. then he said "your gonna burn up your gasket because you dont have enough pressure on the exhaust and it will cause your valves to burn up"lol

That's why he works at a parts store, and not as a mechanic
Wake
08-04-2011, 04:01 PM
HAHA did he try to sell you a muffler bearing and blinker fluid also?

Or maybe a radiator for your VW/porsche?


If you need REAL mechanic work or an opinion just hit me up. Im in your area.
cotbu
08-04-2011, 04:51 PM
That's probably the same guy that sold me my flux capacitor, I was wondering why nothing happens at 88mph!
Medicom3
08-04-2011, 06:01 PM
HAHA did he try to sell you a muffler bearing and blinker fluid also?

Or maybe a radiator for your VW/porsche?


If you need REAL mechanic work or an opinion just hit me up. Im in your area.

ahhaha i know right! Ill hit you up if i do have any questions for sure. thanks for all your replies i was confuse for a sec..lol
KaminaSan
08-07-2011, 02:28 AM
Ok, he's not completely crazy though.

This is a common problem with motorycles. You chop off the exhaust, no backpressure, and burn valves.

I don't know shit about backpressure, but I know that this CAN happen on motorcycle exhausts.

The reason why it is more prevalent afaik, is because a bike exhaust is short, and thus needs the pressure. Car exhausts however, probably have enough backpressure because of the sheer length.