Subject	FPS, f/s is velocity. ft³/min is Flow Rate.
Posted by	BigTDogg (MA) on March 13, 2010 at 10:34 AM
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In Reply To	am i missing something? it says divide the flow rate by 2 posted by Mr.Stacy on March 13, 2010 at 09:24 AM
Message	If your total flow is 526 ft³/Min in a TT set up, divide by 2 and your flow per charge pipe is 263 ft³/Min. In that case, 263ft³/Min ­­divided by 0.017ft² (for 1.75" diameter piping) = 257 ft/sec. In that case, 1.75" piping would be ideal. Therefore, if your turbos are flowing 526ft³/min each, and 200 - 300 ft/sec velocity is desirable, then 2.5" is optimal. The picture he posted is from Garrett's site, not specific to our cars. That flow rate given is an example of how the calculation works. You take the flow rate for your particular turbos (from the compressor map) and input it into that formula. "I'm glad I have the MSP mani's." - jschrauwen 22:20:13 06/10/08 "...Downpipes own. They own everything...anything...all there ever was and will be...they should be stock on all cars. Screw the environment, emissions, noise! I love them...I shall name my first-born after them with glee..." - SeedyRom 05:13:20 10/03/02 "i love the cock" - genic 22:20:47 09/25/03 "I hope you get fucked in the ass with a pringles can." - ni[X]it 14:53:53 02/02/06 "Either ignore him or beat him up. Anything else will be over his head." - Marshall 12:28:23 08/18/04 "i've got to the point where i can drive the Z at its limits and i want more" - shadowZ 16:29:56 08/31/04 "I was way more timid then than I am now about getting in there and yanking on things." - TT XTZ 13:30:34 07/25/05 "Just ran out to get some knee pads. I'm ready now... BRING.....IT.....ON... :-) " - Dave N 19:04:30 10/31/07
Follow Ups	Looking at some of the info on Garrett's website. - DVDBURN (MD) 05:35:14 03/13/10 Good stuff ! (n/m) - Cuis-Z 05:51:19 03/13/10 what would be an example of "improper crankcase ventilation" (n/m) - LJZTT 07:02:32 03/13/10 if i read the tubing diameter section right, this suggests - Mr.Stacy 07:40:16 03/13/10 2.5" (n/m) - BigTDogg (MA) 09:14:55 03/13/10 am i missing something? it says divide the flow rate by 2 - Mr.Stacy 09:24:23 03/13/10 FPS, f/s is velocity. ft³/min is Flow Rate. - BigTDogg (MA) 10:34:46 03/13/10 OH, OK. makes perfect sense now. Thanks. - Mr.Stacy 10:38:44 03/13/10 Bookmarked!!! Thx (n/m) - ConVerTT 11:50:45 03/13/10
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