turboben

what performance affect does cutting the baffles out from the back box have on a car(apart from being a bit loud)

and would this affect the turbo as surely there would be less back pressure

antony215

I cant see it affecting the back pressure (alot) but it would be loud as fuck and will probabley get you a fine

SafeChav

Not really going to make a lot of difference at all, possibly if you were looking to go one better than Christians car, but still probably not

Rick

mugs game

vroooom ptssssh

Who sais you need back pressure on a turbo car

SafeChav

me.........

how else does the oil stay in your "dynamic seal" turbo

PeterRST

iTrader: (1)

Been there, done that.

Don't think it'll make much difference power-wise. And regarding the sound... Well, I've removed all the glass wool from a std silencer once and it wasn't loud at all. Most people wouldn't have noticed a big difference I think. It's quite amazing how much of the noise is absorbed by the turbocharger.

turboben

excatly dont want to kill the turbo

SafeChav

Unlikely you'll kill it, but you'll get blue smoke and obviously will lose engine oil.

There are ways around it but standard turbos dont always beneift from big bore exhausts.

Andy_R

iTrader: (3)

how would you get around it? Im genuinely interested!

SafeChav

Step gap oil seal

Im surprised i would of imagined you would know the answer (or are you planning to shoot me down )

Andy_R

iTrader: (3)

lol nah that would be bad!

I recall hearing about the T2.5's on FRST having seal issues when larger exhausts were fitted!

Just wasnt aware of how the problem was cured!

SafeChav

Different turbo's have different seals, there are T3's that have the carbon seals or whatever they are called, but RST ones use the dynamic seal, so its basically a piston ring, and simple physics keep the oil in place (exhaust pressure exceeding the oil pressure to contain it)

bigger bore exhaust = less pressure in the exhaust than the oil pressure, which in turn = oil leaking through the seal

A step gap seal means there is no direct gap through the seal

Andy_R

iTrader: (3)

Im familiar with the physics the preassure differentials and effects, cant say I knew about the difference in seals though...cheers

SafeChav