View attachment 32446
Just for you'll, stock T-3 verses a T-4 that I smoothed up, wonder which one will breath!
Jim
Pretty slick, looked into it a bit more. Curious as to: 1) can this turbo be sold without the manifold; 2) will that housing be machined for other turbos; 3) what are the round about rpm reduction figures in spool?
Just to be clear, this is an S300 frame turbo. The turbine housing inlet is T4 size.so how much is this going to be? how will it be controlled in a twin scynerio? im wanting to move up to a t4 type turbo and manifold in my twins but dont want to sacrifice my spoolup.. this looks like the answer.
Initially,we used boost to work a two way cylinder but after much testing realized that there was a reason that Borg and Honeywell used the electrical actuator motors controlled by the engine computer, they are much faster. Now we use the same Delphi actuator that Borg Warner uses only controlled by a programmable stand alone computer we designed to monitor boost, back pressure, throttle position sensor, EGT's, turbo rpm and engine rpm's.im just wondering why your choosing to use a computor instead a mechanical boost acctuator not unlike a typical wiastgate controller? seems to me that would be much much simpler and would work well.. all you would have to do is offer different strength springs for desired spoolup affect. a compound scynerio you could just make the boost reference come from between the stages.. thats how mine is now and works great. Im just looking to free up the exhaust side and keep the spoolup i have now..
Initially,we used boost to work a two way cylinder but after much testing realized that there was a reason that Borg and Honeywell used the electrical actuator motors controlled by the engine computer, they are much faster. Now we use the same Delphi actuator that Borg Warner uses only controlled by a programmable stand alone computer we designed to monitor boost, back pressure, throttle position sensor, EGT's, turbo rpm and engine rpm's.
Just seemed to work much better, in our application at least.
It will start choking it down but we haven't done any testing on that aspect. I really don't think it would do enough to qualify it as an exhaust brakeBy closing the switchblade during deceleration will that create an exhaust brake effect?
No, didn't try it that way, however, we are getting ready to use an actuator based on manifold vacuum on our Harley V-Rod with a Switchblade turbo, of course it is a gasser. :evil Currently 150 hp, planning to up to 200.im curious if you tried a spring over boost acctuator at any point? of similar design to a typical waistgate acctuator.