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#1 |
S5 - Full Throttle
![]() Join Date: Apr 2012
Location: Staffordshire
Posts: 407
Casino cash: $5472 ![]() |
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Out of interest why does a std m3 and Csl share the same inlet valves - 11347830889
But they don't share exhaust valves ? Csl 11347833676 m3 11347830888 They both list the same sizes. Is it CSL tax ? Inlet 35.0/5.95mm exhaust 35,0/5.95mm Any ideas ? Sodium filled ??? Cylinder heads list same part no. But mine is heavily gas flowed on the inlet side and throttle bodies matched the same. Looks to be CNC machined. Exhaust ports are un touched. Can anyone else tell me if they know of any other gas flowed csl's ?
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Previously owned CSL No:16 😞 |
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#2 | |
S5, Sport On, DSC M-track
Join Date: Jun 2008
Location: Auckland, New Zealand
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This is a post from m3forums ... might shed some light into the fact that it isn't a CSL tax.
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#3 |
S5 - Full Throttle
![]() Join Date: Apr 2012
Location: Staffordshire
Posts: 407
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That's interesting. So there is a difference. It's funny how the inlets are std but ported and the exhaust's are modified with std ports.
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Previously owned CSL No:16 😞 |
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#4 |
S4 - Getting the hang of it
Join Date: Nov 2009
Location: West Sussex
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Are you sure about the porting? Standard M3 S54 engine has porting work on the inlet side. I'll get a picture in the morning if I remember...
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#5 |
S5 - Full Throttle
![]() Join Date: Apr 2012
Location: Staffordshire
Posts: 407
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I'm sure the ports on my head are matched the the ported throttle bodies. I wasn't aware that a std M3 has this as std. I'll put some pics up
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Previously owned CSL No:16 😞 |
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#6 |
S5 - Full Throttle
![]() Join Date: Apr 2012
Location: Staffordshire
Posts: 407
Casino cash: $5472 ![]() |
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Ported and matched throttle body
![]() Machined inlet port knife edged ![]() Top end rebuild in progress ![]() Rebuilt Vanos unit ![]()
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Previously owned CSL No:16 😞 Last edited by J2LTB; 19-05-2014 at 11:45 PM. |
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#7 | |
Wonky 'L' after Washing
Join Date: Mar 2019
Location: Gateway To The West - St. Louis
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Feff Last edited by Feffman; 18-03-2023 at 05:52 PM. |
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#8 |
Driving it like I nicked it
![]() Join Date: Mar 2009
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Very interesting - thank you for sharing.
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#9 |
S5 - Full Throttle
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Im a visual animal doesn't any body have pictures of differences etc?
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purple haze... |
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