ajazyasin Posted February 24, 2009 Share Posted February 24, 2009 Ive been doing some reading on this thing and was looking for second opinions: http://www.sound-performance.com/Turbos/c46/p192/Sound-Performance-Quick-Spool-Valve/product_info.html On a twin scroll turbo, it shuts down one of the scrolls and therefore all gasses are forced into one inlet of the turbo. Higher pressure and quicker spool. As boost builds, the valve opens. whadayafink? Quote Link to comment Share on other sites More sharing options...
jevansio Posted February 24, 2009 Share Posted February 24, 2009 (edited) One more thing to go wrong and unnecessary complication IMHO, a properly sized single on a Supra should give more than ample power and good spool. Exactly how many rpms does it knock off a DBB T67 sized turbo? Edit : Here's the link to the full text on SF http://www.supraforums.com/forum/showthread.php?t=481292 Still not sure it's for me, for the agro of fitting etc, 250rpms on a GT45R, under 200 on something like mine. How many people are using it in the States & are the end user findings as good as the hype by SP. We all know how companies will twist figures for marketing purposes Edited February 24, 2009 by jevansio (see edit history) Quote Link to comment Share on other sites More sharing options...
johnny g Posted February 24, 2009 Share Posted February 24, 2009 lol I was just away looking @ that. http://www.sound-performance.com/popup_image.php?pID=192&image=6 Might be nice for the '2 though, Jay? Quote Link to comment Share on other sites More sharing options...
ajazyasin Posted February 24, 2009 Author Share Posted February 24, 2009 I think IF it has any benifit, it would be on bigger turbos. My main worry is the amount of back pressure it excerts when one of the turbo entries is blocked. I agree there is alot of hype by the company. Quote Link to comment Share on other sites More sharing options...
Kev.O Posted October 31, 2009 Share Posted October 31, 2009 Has anyone tried this in the UK yet? Quote Link to comment Share on other sites More sharing options...
JamieP Posted October 31, 2009 Share Posted October 31, 2009 I take it this will only work on a undivided manifold? Quote Link to comment Share on other sites More sharing options...
jevansio Posted October 31, 2009 Share Posted October 31, 2009 Yip I think so Quote Link to comment Share on other sites More sharing options...
Kev.O Posted October 31, 2009 Share Posted October 31, 2009 I take it this will only work on a undivided manifold? Twin Scroll/divided manifold. Quote Link to comment Share on other sites More sharing options...
jevansio Posted October 31, 2009 Share Posted October 31, 2009 Twin Scroll turbo housing, undivided manifold Quote Link to comment Share on other sites More sharing options...
JamieP Posted October 31, 2009 Share Posted October 31, 2009 Twin Scroll/divided manifold. How can that work then? i can understand it working on a twin scroll turbo on a undivded manifold but not on a dived manifold, i cant get the SP links to work for some reason. Quote Link to comment Share on other sites More sharing options...
Kev.O Posted October 31, 2009 Share Posted October 31, 2009 Twin Scroll turbo housing, undivided manifold Good point, just thought that through in my head My SP manifold is twin scroll Quote Link to comment Share on other sites More sharing options...
JamieP Posted October 31, 2009 Share Posted October 31, 2009 Good point, just thought that through in my head My SP manifold is twin scroll Same as my boostlogic, you could use it if you spaced the turbo up a bit with a undived spacer but with the effort thats needed and the gains you get id not bother. Quote Link to comment Share on other sites More sharing options...
Kev.O Posted October 31, 2009 Share Posted October 31, 2009 Same as my boostlogic, you could use it if you spaced the turbo up a bit with a undived spacer but with the effort thats needed and the gains you get id not bother. I see what you're saying, but with the spacer, and the valve, the turbo would sit a fair bit higher than what it curretly does. Surely the gases hitting the valve from the front three runners and bouncing back down towards the gases from the rear three runners must cause a disturbance in the exhaust gas flow right? Or am I just chatting out of my @ss? Quote Link to comment Share on other sites More sharing options...
JamieP Posted October 31, 2009 Share Posted October 31, 2009 I see what you're saying, but with the spacer, and the valve, the turbo would sit a fair bit higher than what it curretly does. Surely the gases hitting the valve from the front three runners and bouncing back down towards the gases from the rear three runners must cause a disturbance in the exhaust gas flow right? Or am I just chatting out of my @ss? Yeah might do, on a small turbo like a T67 i dont see the point tbh, boost is basically instant, might be handy on a GT55:cool: Quote Link to comment Share on other sites More sharing options...
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