Sure they are, they just dont know it yet.

 

I got 42 psi out of a HX 35 once.............then it grenaded

I had the wastegate disabled

kinna like a stick match............................worked real good once

 

Buring at both ends so to speak.

 

I did some rotational welding on it

 

my hx has hit 35+ a few times with new adrenaline installed so it is getting a BD super B very soon.

John

 

going from hx35/40 at 37psi I dropped to about 34 on the SUPER B. Much better turbo IMO

 

Drive pressure and boost:exhaust pressure ratio is new to me.
Most guys seem to try to achieve 1:1...anybody know why or have any experience with it?

 

They reason why is, you want to be able to exhaust out the same pressure you are pushing in. if you overdrive the turbo and push in more then the exhaust side can relive you get drive pressures out of whack and then the heat goes out of control. the pressure has to go some were and it usually finds its way out a head gasket. so in theory if you drive in 50psi you should exhaust out 50 psi

John

 

Thanks John,
While we're iffin'...is there anything damaged if the boost doesn't exceed the exhaust pressure?