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SVTPerformance's Chain of Restaurants
The Blower Bistro
Hellion or HP Performance for a 4V?
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<blockquote data-quote="jdk" data-source="post: 3575560" data-attributes="member: 19998"><p>Go with the Hellion kit. The THP kit is nice too but twins are twice the trouble when something goes wrong. I think all things being equal the spool time will be similar. Your car is making the same amount of exhaust energy to spool a turbo no matter what, whether it be one bigger one or two smaller ones. It's not like you're defeating some hidden laws of physics by using twins. Sppol also has a lot to do with the size of the housing on the turbine side. The HP kit uses a relatively small turbine side and they spool up damn quick. The downside of that is they become a restriction at higher flow levels (at high RPM). It's a double edged sword, and you can't have it all.</p><p></p><p></p><p>Why I like singles:</p><p></p><p>Easy to set up as draw through</p><p>Simple</p><p>More choices with turbo placement</p><p></p><p></p><p>The one thing about twins that is nice is you don't have to worry about restrictions on the downpipe.. Two 2.5" downpipes on the twins compared to one 3" on the single is no comparison at all.</p></blockquote><p></p>
[QUOTE="jdk, post: 3575560, member: 19998"] Go with the Hellion kit. The THP kit is nice too but twins are twice the trouble when something goes wrong. I think all things being equal the spool time will be similar. Your car is making the same amount of exhaust energy to spool a turbo no matter what, whether it be one bigger one or two smaller ones. It's not like you're defeating some hidden laws of physics by using twins. Sppol also has a lot to do with the size of the housing on the turbine side. The HP kit uses a relatively small turbine side and they spool up damn quick. The downside of that is they become a restriction at higher flow levels (at high RPM). It's a double edged sword, and you can't have it all. Why I like singles: Easy to set up as draw through Simple More choices with turbo placement The one thing about twins that is nice is you don't have to worry about restrictions on the downpipe.. Two 2.5" downpipes on the twins compared to one 3" on the single is no comparison at all. [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Blower Bistro
Hellion or HP Performance for a 4V?
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