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Old 09-05-2008, 02:20 PM
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Default ls6/fast intake

whats the most restrictive part of it? the runners? or the t/b?
Old 09-05-2008, 02:25 PM
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what came first teh chicken or the egg?
Old 09-05-2008, 02:26 PM
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Originally Posted by stevegrizzle
what came first teh chicken or the egg?
haha touche on that!!
Old 09-05-2008, 06:24 PM
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thanks guys...
Old 09-06-2008, 09:14 PM
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???????
Old 09-06-2008, 10:44 PM
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you need to revise your question.
Old 09-07-2008, 12:42 AM
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the flow on a ls6 intake runner is about 260 .the intake runeer of a stock non ported FAST is 270 . as far as the cfm of a 90mm tb i am not sure of . really the intake restricts the flow of the heads as most decent heads flow around 300cfm .

Last edited by snake charmer; 09-07-2008 at 12:43 AM. Reason: typo
Old 09-07-2008, 09:37 AM
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TPIS got almost the same gains as the FAST in power by using an ls6 intake modified with a 90mm TB

so my guess is the TB is the first restriction...then the runners
Old 09-07-2008, 04:37 PM
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I think he is referring to what area is more important to port?

If so, like said about the chicken & the egg. Both are needed to work properly together.
Old 09-07-2008, 11:06 PM
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understood...what im actually getting at is there is less flow in the t/b area then we simply need to get more air comming into the intake...if its the runners then not much more we can do

if its the t/b area then nitrous guys would have a big benefit of spraying the nitrous after the t/b so its that much less that has to make it through the t/b...if its the runners the keep using nozzels and spray through the t/b
Old 09-08-2008, 08:00 AM
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we never did it yesterday; my boy forgot to do what i told him, do his homework, and he didn't have the coolant lines we needed.

We also never did the header install b/c the toolbag that was supposed to let us use his lift never showed up. . it took me over an hour to convince my friend that installing them on jack stands was a bad idea , esp considering that he DIDN'T soak the bolts the night before (like i told him to), we had NO air tools, and he was cutting off the rest of his exhaust...




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