Divided housing on a open flange ?
TECH Enthusiast
Joined: Jun 2013
Posts: 513
Likes: 1
From: Moose Jaw SK, Canada
It would likely light off a little sooner with a fully divided hotside, but if that's not a huge concern I wouldn't worry about it too much.
My s475 is divided, hotside isn't. works lovely.
My s475 is divided, hotside isn't. works lovely.
TECH Regular
Joined: Sep 2011
Posts: 431
Likes: 1
From: Washington
The big difference is the with the open collector the divided housing acts like it's open A/R number and not the theoretical reduced divided number. Setups like these work great with quick spool valves
hey do you have any experience with spool valves?
doesn't look to hard to fab something up, just curious what kind of gains I could see and would it be worth the effort
thanks
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Truckdog.... SP Engineering made some for the 2JZ platforms that they catered to and I used to be a part of. Overall the Quick Spool Valve showed a decrease in "full boost" time and RPM due to the valve being actuated. I am sure if you look up SP Engineering and Quick Spool Valve there are some threads out there with data. Its been a few years since I looked into anything like that. I had one on my 2JZ setup but spent very little time with that setup before it was sold so I cant provide too much insight.
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Divided Snail Valve Hi I love the use of a Divided Housing.
My method, at times, is to "valve" one side with a butterfly.
The actuator is EMAP controlled by a simple turbo style wastegate.
The end result is a MUCH GREATER turbo spool.
The concept is that of a "dual size" hot side.
Lance
My method, at times, is to "valve" one side with a butterfly.
The actuator is EMAP controlled by a simple turbo style wastegate.
The end result is a MUCH GREATER turbo spool.
The concept is that of a "dual size" hot side.
Lance
I saw a video on YouTube like a year ago where they did back to back test without/with a quick spool valve. I wanna say just the valve and no tuning adjustment it was like 6-800rpm difference in spool. They said with tuning they could be around a 1000rpm sooner. That's pretty good imo,
thats fantastic! i might have to give it a shot on my next build. how is everyone controlling it, just a pressure diaphragm actuator? a dc stepper arduino set up would be nice ****