I had some questions here, I heard from most exhaust shop, which tell me auto car must maintain certain level back pressure(flow velocity).
But some says auto tranny need as much back pressure as possible to get the best fc and pick up:hmmmm:??
My current exhaust set up was
4-2-1 - 1.6(piping) - 2.0 inlet straight flow long type muffler - 1.75 straight flow ( hotbits ).
The reason I using straight flow, because when I was asking the open pod method with speedwork, they ask me to do both intake and exhaust to get the best result, and end up with a straight flow. They said as long as I want performance I must have straight flow because I`m using open pod????
I was swap from 1.75inlet straight flow oval short type muffler + 1.75 inlet resonator( hotbits ) to current set up. The reason I swap because I love stainless steel, and I was technically cheated by speedworks, because they told me that they was using FULL STAINLESS STEEL, and end up with full stainless steel header and piping only...
Result after swapping the mid muffler was telling by butt dyno, I notice better response at 2k~4k rpm, but same after 5k.
Currently I`m planning to swap my rear 1.75 straight flow( hotbits ) muffler into S-flow muffler. Hope to gain back some pick up, but I worried s-flow have loses in high end.
Another exhaust shop also recommended I change my current 2.0 straight flow muffler into 2 turbulence short type to get better pick up:hmmmm:, and swap to s-flow rear muffler after that.
And I`m very curious about this as well, since some says mid resonator and muffler only makes different in different sound, and only slightly different in performance.
I was wondering would changing the mid muffler into 2 turbulence type will makes better? Or should I go for S-flow rear muffler??
I was expecting a balance between pick up and top end if possible.
I`m going to have engine tuning in future, so exhaust will be doing over again that time, but it will be a long way to go. I just want to get better outcome currently if possible.
My ride was an Almera 1.5 auto.
But some says auto tranny need as much back pressure as possible to get the best fc and pick up:hmmmm:??
My current exhaust set up was
4-2-1 - 1.6(piping) - 2.0 inlet straight flow long type muffler - 1.75 straight flow ( hotbits ).
The reason I using straight flow, because when I was asking the open pod method with speedwork, they ask me to do both intake and exhaust to get the best result, and end up with a straight flow. They said as long as I want performance I must have straight flow because I`m using open pod????
I was swap from 1.75inlet straight flow oval short type muffler + 1.75 inlet resonator( hotbits ) to current set up. The reason I swap because I love stainless steel, and I was technically cheated by speedworks, because they told me that they was using FULL STAINLESS STEEL, and end up with full stainless steel header and piping only...
Result after swapping the mid muffler was telling by butt dyno, I notice better response at 2k~4k rpm, but same after 5k.
Currently I`m planning to swap my rear 1.75 straight flow( hotbits ) muffler into S-flow muffler. Hope to gain back some pick up, but I worried s-flow have loses in high end.
Another exhaust shop also recommended I change my current 2.0 straight flow muffler into 2 turbulence short type to get better pick up:hmmmm:, and swap to s-flow rear muffler after that.
And I`m very curious about this as well, since some says mid resonator and muffler only makes different in different sound, and only slightly different in performance.
I was wondering would changing the mid muffler into 2 turbulence type will makes better? Or should I go for S-flow rear muffler??
I was expecting a balance between pick up and top end if possible.
I`m going to have engine tuning in future, so exhaust will be doing over again that time, but it will be a long way to go. I just want to get better outcome currently if possible.
My ride was an Almera 1.5 auto.
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