Friday, November 17, 2006 - 02:04 pm, by: Benjamin Burgess(Jampac)
My setup doesn't surge, but it would get very close to surging. When I was doing simulation work before actually buying all the parts It was showing it would surge a small amount on this turbo.
I have 5psi by 2900rpm, which is well inside the surge line. My theory with this turbo is seeing as the 1jz can take big boost which is not common for a factory engine, why not run a smaller turbo with good spool up and run like in the mid 20 pound range to produce some big power, but with good response on pump fuel.
Friday, November 17, 2006 - 03:09 pm, by: Chris Davey(Chris_davey)
It is just like a stock car. You can't reduce the boost below the natural limit. ie. stock can't go below 8psi.
EBC's keep the pressure away from the wastegate until you reach desired boost so that the wastegate doesn't open. THis brings boost on quicker.
If this wasn't to happen some exhaust gasses would be "wasted" and then boost threshold would increase.
A good way to decrease boost is to jam your exhaust full of socks or your intercooler pipes (No I don't recommend that)
Cams will increase lag but as the table is based on a stable VE of 90% I am not sure how the addition of cams would change the VE. ie. may be 80% up until 4000rpm and then 92% so that would change the flow and where it goes in relation to the surge line.
Saturday, November 18, 2006 - 10:36 pm, by: Cihan Aday(Cihan)
Richard Johnson wrote on Saturday, November 18, 2006 - 03:43 am:
You wont make much boost without NOS, even then whats the point when smaller turbo's will make the same power with less trouble. That it ofcourse unless your planning on doing only quarter mile work, you can stage and use launch control effectively to get it moving.
Previous
(No I don't recommend that) 
