Once again another noob question....
02-25-2004, 09:31 PM
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Once again another noob question....
Im soon runnin a turbo on my stock ls internals.... now the question is.... if i was to run turbo... should i have 2.25 piping for the exhaust? or a 3? now i know you guys are prolly gonna say " GO SEARCH you noob" or sumtin, but i have, and couldnt find what i was looking for....(if you guys can find the thread, come slap me and link me the thread.... 
thanks...) anywayz for those who want to tell me here.... i would like to know what diameter should i have? 2.25? or 3? oh yeah im runnin 6 -7 psi for now.... daily driven.... thanks allot for those that helped me towards my turbo... 
thanks...) anywayz for those who want to tell me here.... i would like to know what diameter should i have? 2.25? or 3? oh yeah im runnin 6 -7 psi for now.... daily driven.... thanks allot for those that helped me towards my turbo...
02-26-2004, 07:32 AM
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Re: Once again another noob question.... (tgh99si)
2.5" becomes a limitation around 300whp or so, and you will always spool faster with a 3". It's up to you. I had a 2.5, so I left it. It works, but If I had to do it again, 3" all the way.
02-26-2004, 08:29 AM
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Re: Once again another noob question.... (Johnyquest)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Johnyquest »</TD></TR><TR><TD CLASS="quote">2.5" becomes a limitation around 300whp or so, and you will always spool faster with a 3". It's up to you. I had a 2.5, so I left it. It works, but If I had to do it again, 3" all the way.</TD></TR></TABLE>
um no, larger piping will cause you to have less resistance and less exhaust pressure for build up so you will spool slower. bad part about 2.5" is that once you pass a certain flow rate you start to lose power. 3" is a good for mid to higher boost but for low boost and a faster spooling turbo stick with 2.5"
um no, larger piping will cause you to have less resistance and less exhaust pressure for build up so you will spool slower. bad part about 2.5" is that once you pass a certain flow rate you start to lose power. 3" is a good for mid to higher boost but for low boost and a faster spooling turbo stick with 2.5"
02-26-2004, 11:02 AM
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Re: Once again another noob question.... (wicked B16)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wicked B16 »</TD></TR><TR><TD CLASS="quote">
um no, larger piping will cause you to have less resistance and less exhaust pressure for build up so you will spool slower. bad part about 2.5" is that once you pass a certain flow rate you start to lose power. 3" is a good for mid to higher boost but for low boost and a faster spooling turbo stick with 2.5"</TD></TR></TABLE>
how does that work??? If you have more back pressure then why would the turbo spin faster, seems a bit backwards to me. And besides, doesn't a majority of the spooling characteristics come from the design of the manifold. With less backpressure the exhaust can allow the manifold to do what is was designed to do. Maybe i am wrong on this so correct me somone if i am wrong.
um no, larger piping will cause you to have less resistance and less exhaust pressure for build up so you will spool slower. bad part about 2.5" is that once you pass a certain flow rate you start to lose power. 3" is a good for mid to higher boost but for low boost and a faster spooling turbo stick with 2.5"</TD></TR></TABLE>
how does that work??? If you have more back pressure then why would the turbo spin faster, seems a bit backwards to me. And besides, doesn't a majority of the spooling characteristics come from the design of the manifold. With less backpressure the exhaust can allow the manifold to do what is was designed to do. Maybe i am wrong on this so correct me somone if i am wrong.
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