emoximuu Posted November 7, 2011 Share Posted November 7, 2011 My terminology is a bit off but you'll get the point. I want to use a Peakboost manifold on an SR20 but am looking for the best response possible. Using a twinscroll turbo I could use a quick spool valve (http://www.suprastore.com/spquspva.html) but that doesnt seem productive for a car I want to road race. What I'm think of is a plate that would leave one side free and reduce the other acting like a restricter on one side, forcing more flow through the nonrestricted side. The benifits I forsee are increased spool and the cost of a little top end. With a turbo thats a little oversized (3071/76) I dont think the topend would be hurt that much. What are your thoughts? I've done a quick search but didnt find anything like it. Quote Link to comment Share on other sites More sharing options...
getoffmyinternet Posted November 7, 2011 Share Posted November 7, 2011 It seems like making it restricted would hurt it quite a bit at the top end, but I don't see it helping much on the low end if at all. I don't know much about those quick spool valves but it seems kinda gimmicky. Quote Link to comment Share on other sites More sharing options...
nismopu Posted November 7, 2011 Share Posted November 7, 2011 They work awesome! Also, they create torque if you look at dynographs of the folks using them. What turbo are you looking at? Quote Link to comment Share on other sites More sharing options...
TimZ Posted November 12, 2011 Share Posted November 12, 2011 (edited) My terminology is a bit off but you'll get the point. I want to use a Peakboost manifold on an SR20 but am looking for the best response possible. Using a twinscroll turbo I could use a quick spool valve (http://www.suprastore.com/spquspva.html) but that doesnt seem productive for a car I want to road race. What I'm think of is a plate that would leave one side free and reduce the other acting like a restricter on one side, forcing more flow through the nonrestricted side. The benifits I forsee are increased spool and the cost of a little top end. With a turbo thats a little oversized (3071/76) I dont think the topend would be hurt that much. What are your thoughts? I've done a quick search but didnt find anything like it. What do you mean by "not productive"? What makes you think that? The restrictor plate idea almost certainly won't work like you are thinking. If that's what you want to do, then just get a smaller AR turbine housing and be done with it - that's essentially what you are trying to do with the fixed restrictor plate. Edited November 12, 2011 by TimZ Quote Link to comment Share on other sites More sharing options...
260DET Posted November 16, 2011 Share Posted November 16, 2011 A full twin scroll/divided housing setup will be good for road racing, better performance all round including improved throttle response. That's assuming it's all sized etc correctly. Quote Link to comment Share on other sites More sharing options...
emoximuu Posted November 17, 2011 Author Share Posted November 17, 2011 I wanted to run twin scroll scroll but don't want to have a custom setup made. I think with the advent of Garrett's small frame GTX turbo's Im going to run a gt(x)2871 type setup. Just need to get my hands on a fullrace tubular bottom mount with external WG...one of those hard to find, discontinued but awsome products! Quote Link to comment Share on other sites More sharing options...
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