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A subject with tired legs no doubt but I'll keep it as quick as possible.
My S3 8V has the usual turbo elbow/turbo muffler delete/airbox mods (cut out etc etc).
I've been messing with the airbox for ages and although not the smoothest flow of air before the panel filter, it does flow well. I've also smoothed/ported the inlets a bit (as they line up fairly poorly) and silicone sealed all the little gaps and holes between the plastic parts of the box/intake. Quite a few gaps appear especially under load.
Went to replace the stock OEM pipe (between airbox and elbow) with a silicone offering. Larger bore (but not massive size difference).
Definitely flowing more top end but the snap response of the throttle has certainly taken a hit. Not a huge amount and with spirited driving up the rev range I doubt you'd notice. However, as I am a stickler for low/mid range performance, I'd say I probably prefer it with the OEM hose in place.
As I see the OEM hose used on setups with hybrids and 500hp+, that's just fine with me.
Just wondered if anyone else has experienced something similar and if there are any aftermarket airboxes/mods which increase top end flow without slightly sacrificing the throttle response.
I'm wondering if an APR style box (incorporating factory front intake) with OEM pipe would increase the sharpness of the throttle even more, as it logically would appear to flow more smoothly whilst increasing filter size.
Basically swapping the chunky square design of the factory box to a smoother flowing design.
The open air/large filter kits don't really do much for me as they would exacerbate the lack of response even if they do make some extra hp up top.
It's all about drivability for me, numbers are great but if it takes longer to make them, not a huge amount of point on normal roads.
Any advice much appreciated.
My S3 8V has the usual turbo elbow/turbo muffler delete/airbox mods (cut out etc etc).
I've been messing with the airbox for ages and although not the smoothest flow of air before the panel filter, it does flow well. I've also smoothed/ported the inlets a bit (as they line up fairly poorly) and silicone sealed all the little gaps and holes between the plastic parts of the box/intake. Quite a few gaps appear especially under load.
Went to replace the stock OEM pipe (between airbox and elbow) with a silicone offering. Larger bore (but not massive size difference).
Definitely flowing more top end but the snap response of the throttle has certainly taken a hit. Not a huge amount and with spirited driving up the rev range I doubt you'd notice. However, as I am a stickler for low/mid range performance, I'd say I probably prefer it with the OEM hose in place.
As I see the OEM hose used on setups with hybrids and 500hp+, that's just fine with me.
Just wondered if anyone else has experienced something similar and if there are any aftermarket airboxes/mods which increase top end flow without slightly sacrificing the throttle response.
I'm wondering if an APR style box (incorporating factory front intake) with OEM pipe would increase the sharpness of the throttle even more, as it logically would appear to flow more smoothly whilst increasing filter size.
Basically swapping the chunky square design of the factory box to a smoother flowing design.
The open air/large filter kits don't really do much for me as they would exacerbate the lack of response even if they do make some extra hp up top.
It's all about drivability for me, numbers are great but if it takes longer to make them, not a huge amount of point on normal roads.
Any advice much appreciated.