Obelisk86

ok, i had to chop my crap exhaust setup off and decided i like it better straight piped! but im looking for somewhere to get my sticker...and this guys says running straight piped is going damage the valve train due to lack of back pressure??? so ya the pipe aren't that short, they dump at the axle.
thanks guys, let me know

Wsteun

iTrader: (3)

lol. That's stupid. If you're running true duals, you're going to make power.

TLewis4095

iTrader: (10)

LOL! If you ran w/no headers or exhaust manifolds you can warp a valve......but even open headers is no risk. Enjoy the sound & power.

thebart455

yea i run my car with lt's and open cutouts 90% of the time and ive never had a valve rattle or peck in the engine. sounds wicked mean

GuitsBoy

iTrader: (4)

This is a great answer. One other thing to note is that if youre still running closed loop, you want at least 18" of pipe past the o2 sensor, otherwise reversion will skew your o2 readings.

TLewis4095

iTrader: (10)

Good point!

bczee

iTrader: (12)

One of the old myth's on this subject was due to cold air flowing back up the short pipe or headers after shutdown and with the cold air and hot metal causing the valve to wrap .. it is a very old myth.. .

But with much better metal in the Valve these days.. it is unlikely. But I guess it can happen.

thebart455

if you was running open shorties yea i may worry about warping a valve but with long tubes i wouldent worry bout it

josh2002-ws6

iTrader: (98)

I ran my car open headers for about 4 months and never had any problems with the valves. That is just a old wifes tale.

taws6m6

iTrader: (37)

werd^^^

Obelisk86

haha ya i figured it was stupid...
Thanks guys!
LONG LIVE MUSCLE CARS!!!