Gamer Posted January 30, 2007 Share Posted January 30, 2007 I agree, it should help spool but nothing comes without it's costs. It will be at the expense of top end flow. Not saying this is bad, it just might not be the best for someone looking for more top end at the expense of a better spool up. The GT4067 I had was a divided housing. Quote Link to comment Share on other sites More sharing options...
Wez Posted January 30, 2007 Share Posted January 30, 2007 What happens if you get turbo surge? and what would the down side to a antisurge housing be if any? From a website describing matching of turbos to an engine VE:- Surge is when the flow through the compressor is unstable and will go up and down and backwards unpredictably. Do not pick a turbo that will operate in this area! It can be very damaging. Full Doc Quote Link to comment Share on other sites More sharing options...
Alex Posted January 31, 2007 Share Posted January 31, 2007 What happens if you get turbo surge? and what would the down side to a antisurge housing be if any? The anti surge slows the spool down to allow the engine to keep up...ie the pump that is the turbo tries to over supply the engine when you surge... Divded housing are supposed to increase spool utilising the different pulses from the cylinders. For this to work most effeciently they should be matched to a divided manifold which optimises the exhaust pulses. My motor uses a non DBB divided housing and my spool is pretty good. Divided housings DECREASE spool time, when used with divided port manifolds. But they require a larger exhaust A/R to compensate for the division. Quote Link to comment Share on other sites More sharing options...
Thorin Posted January 31, 2007 Share Posted January 31, 2007 Anti surge is for turbo's that arn't a good match to your engine. I was right then Quote Link to comment Share on other sites More sharing options...
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