running without intercooler plumbed?

**oldcorollas** · 02-01-2008, 12:39 AM

hmm, maybe i stand corrected

then again... that is with restriction.. there may be fair difference when you remove restrictions on fans...
ie, that maximum RPM at 2:1 ration.. is with 1 bar restriction on the compressor... if you remove that restriction, it will nto stay at the same rpm..... it will definitely spin higher... otherwise.. where does all the energy go? (the energy required to compress air to 2:1 ratio)

**brett_celicacoupe** · 02-01-2008, 01:00 AM

'placing in a restriction' is different to plumbing the turbo into the engine kind of restriction.

when you plumb the the turbo in, your also going to raise the VE and in turn push turbo rpm up.

with the turbo not plumbed into engine ... i agree it will spin faster when you remove restriction but not to any dangerous speed. from previous example it may be 40krpm with restriction instead of 68krpm without (PR=1).

and if turbo rpm and whistle noise is anything to go by then this may be relevant. when the IC pipe reducer busted, at WOT with barely any +ve manifold pressure (wastegate would have been shut), the noise of the turbine wasnt very high at all

i may well be wrong but thats what i believe will happen.

**oldcorollas** · 02-01-2008, 01:04 AM

ahh.. i get ya now

ie.. turbo has twice the gas volume to spin it to get to that speed etc...

i agree with you..

but i would keep wastegate open just in case i forgot when driving

**CHB** · 02-01-2008, 01:08 AM

i won't want to step hard on gas when the car only running open exhaust.. it just too loud for me...

**renxun** · 02-01-2008, 02:17 AM

dont wory la bro..... get your car towed by a friend and you should be fine.... my corona was bring towed more than 15km by another 1g corona when my crank sensor wire disconnected and i wasnt aware of it..... btw im from m'sia too ... police wont giv a fcuk.... especially when u are at east malaysia like me..