Bilharzia
Member
- First Name
- Tony
- Joined
- Oct 30, 2023
- Threads
- 3
- Messages
- 10
- Reaction score
- 11
- Location
- South Aust
- Car(s)
- '24 Supra M6, Commodore L98
- Thread starter
- #1
There's very little real technical discussion on effectiveness of downpipes.
I found one site who shows a backpressure measurement plot.
Has anyone seen similar -
particularly for the popular cat'ed downpipes such as Active Autowerk?
The scratchings below are estimates of air flow you might expect with resultant pressure drop.
The estimate - from 120 to 45 mbar (Stock to 200cpi) is about 1 psi less exhaust restriction after turbo.
https://southernbm.com.au/products/wagner-tuning-downpipe-b58-200cpsi-f2x-f3x-gxx-5rvqz
I found one site who shows a backpressure measurement plot.
Has anyone seen similar -
The scratchings below are estimates of air flow you might expect with resultant pressure drop.
The estimate - from 120 to 45 mbar (Stock to 200cpi) is about 1 psi less exhaust restriction after turbo.
https://southernbm.com.au/products/wagner-tuning-downpipe-b58-200cpsi-f2x-f3x-gxx-5rvqz
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