Racintweek

look at t04e's the 50trim will make more power than a 54trim.

d-man

Bigger turbo doesn't always mean more power also because of the spool time. If you have a HUGE turbo that your engine cannot spool by red line then a smaller one that your engine can spool more quickly but doesn't fall on its face by red line will make much more power.

Basically what you want is a turbo that will spool relatively quickly depending on your application and one that will hold its boost (whatever you have it set at) until red line.

Walter

i means generally speaking...i know you need a turbo according ur engine for to get a good spool time..etc...

swartz

all about where your setup places in the turbos efficiency

kill-ka-t-kill

durring the innitial tuning of my t70 setup i was only running 15 psi yes it was a dog but still had top end. just by upping the boost it was an incredible difference. the turbo just gulps way too much air and is not capable of achieving a sufficient airflow untill upper rpms. nonetheless stiffening the wastegate to make more airflow at lower rpm is achievable but the turbocharger will get to a sufficient rpm quicker and boost spike becomes a problem. if you are going to run a large turbo it is highgly important to slowly tune the fel curve untill the turbocharger is in its efficiency or otherwise the engine will detonate suddenly and at high levels of boost this can easily become destructive. big turbos are for built engines that can handle the level of horsepower supported by the turbocharger in its maxuimum efficiency range.

Xgenturbo

I cant believe how much mis-information is on that site.

Oscar

that guy is such a ------- idiot.

Walter

plop!

soon2bdropped

i always thought bigger turbo means that it can handle more hp.. but at the same time takes longer to make alot of power because of turbo lag..