TURBO OR S/C EXHAUST QUESTION
12-13-2014, 12:35 PM
#1
TURBO OR S/C EXHAUST QUESTION
ok so im looking to run S/C for around 430whp , im gonna change the test pipe for invidia one 70mm and i would to run 3 inch exhaust to the Y in the back and split to 2.5 inch , im gonna lose alot of power or i just should do 2.5 front to back 
sorry for my english
sorry for my english
12-13-2014, 06:11 PM
#2
12-14-2014, 05:58 PM
#5
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Yeah, I run a full 3" exhaust and apparently, 60-63mm is the best for superchargers according to this post https://www.s2ki.com/s2000/topic/710...erent-exhaust/
12-15-2014, 07:46 AM
#6
I was running the 3" Single Challenge exhaust but after reading and researching I have now switched back down to the 2.5" Tanabe
In the upcoming weeks going to switch to the Comptech exhaust to see how it sounds and go from there
In the upcoming weeks going to switch to the Comptech exhaust to see how it sounds and go from there
12-15-2014, 08:27 AM
#7
perfect thank you guys i will go 70 mm test pipe invidia with 3 inch split Y on the back to double 2.5 inch with magnaflow muffler sttrait gonna bee enough 
because 70 mm piping are really hard to find and the spiter too are hard to find , its alway 2 or 2.5 or 3 , its possible to find 70 mm piping ?
because 70 mm piping are really hard to find and the spiter too are hard to find , its alway 2 or 2.5 or 3 , its possible to find 70 mm piping ?
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12-15-2014, 08:56 AM
#8
perfect thank you guys i will go 70 mm test pipe invidia with 3 inch split Y on the back to double 2.5 inch with magnaflow muffler sttrait gonna bee enough because 70 mm piping are really hard to find and the spiter too are hard to find , its alway 2 or 2.5 or 3 , its possible to find 70 mm piping ?
because 70 mm piping are really hard to find and the spiter too are hard to find , its alway 2 or 2.5 or 3 , its possible to find 70 mm piping ?
12-15-2014, 09:28 AM
#9
Originally Posted by beaudin223' timestamp='1418664423' post='23437732
perfect thank you guys i will go 70 mm test pipe invidia with 3 inch split Y on the back to double 2.5 inch with magnaflow muffler sttrait gonna bee enough because 70 mm piping are really hard to find and the spiter too are hard to find , its alway 2 or 2.5 or 3 , its possible to find 70 mm piping ?
because 70 mm piping are really hard to find and the spiter too are hard to find , its alway 2 or 2.5 or 3 , its possible to find 70 mm piping ?
12-15-2014, 09:51 AM
#10
Originally Posted by JUSTINTHECOASTIE' timestamp='1418666211' post='23437780
[quote name='beaudin223' timestamp='1418664423' post='23437732']
perfect thank you guys i will go 70 mm test pipe invidia with 3 inch split Y on the back to double 2.5 inch with magnaflow muffler sttrait gonna bee enough because 70 mm piping are really hard to find and the spiter too are hard to find , its alway 2 or 2.5 or 3 , its possible to find 70 mm piping ?
perfect thank you guys i will go 70 mm test pipe invidia with 3 inch split Y on the back to double 2.5 inch with magnaflow muffler sttrait gonna bee enough
because 70 mm piping are really hard to find and the spiter too are hard to find , its alway 2 or 2.5 or 3 , its possible to find 70 mm piping ?[/quote]
Superchargers and turbos flow differently and have different exhaust velocity. You want your header, test pipe/cat, and exhaust to match. At the 430whp level, a 3" test pipe and exhaust is like pissing facing the wind, because at that power level it's overkill, less efficient and loud. You would ned to find the header that has the largest piping(I believe it's Berk), move to a 70mm test pipe, do your exhaust, and all the other mods to shoot for 500whp+ to make the larger exhaust worth while...
Edit: read upgrading to larger exhaust http://www.enginebasics.com/Engine%2...st%20Flow.html