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Throttle body sizing - the theory behind the flow, YO

Discussion in 'A3/S3 Forum (8L Chassis)' started by superkarl, Apr 8, 2013.

  1. s3dave

    s3dave TFSI Hybrid
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    Nick reckons there can be slight rev hanging issues to bear in mind...
     
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  3. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
    Staff Member Moderator Audi S3

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    Never had that with my R32 TB tbh... before I fitted mine there were others that said it would never idle right and other funky issues... mine drove fine on the R32 TB, I couldn't tell you what difference it made now though as it was some time ago...

    Should hopefully get around to trying the 70mm TB at the beginning of next month when I have some time of..

    <tuffty/>
     
  4. Westy

    Westy Double Dark Side! Diesel & 8P

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    Looks like we're only just scratching the surface of the inlet side of things now on ASN. Last year was all about the exhaust side of flow. Love seeing new ideas and progress :thumbsup:
     
  5. badger5

    badger5 www.badger5.co.uk
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    lol - you think this is new territory?
     
  6. Jason.s

    Jason.s Active Member

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    On here he probably means lol.
     
  7. Andrew@A.L.D

    Andrew@A.L.D May add NOS to 600+bhp?

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    As bill said this is old news but new on here I agree for some on here
     
  8. badger5

    badger5 www.badger5.co.uk
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    you mean there's a world outside of ASN 8L section?

    Damn... wish someone had told me sooner..

    :)

    {I've been tuning 1.8t since 2001 lest some folks dont know}
     
  9. Jason.s

    Jason.s Active Member

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    haha shhh must not speak about such strange lands away from ASN.
     
  10. Westy

    Westy Double Dark Side! Diesel & 8P

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    Yes Bill on here. There's not many that have experimented with different sized TBs and large plenum inlets. We all know that if you bang on a big inlet there are gains but there's not much documented around the use of different sized TBs. As you can see from this thread alone there seems to be a lot of conflicting info around whether larger TBs will add rev delays and such.
     
  11. badger5

    badger5 www.badger5.co.uk
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    mapping is not mentioned re tbodies and other side effects. Personally not ever had issues on larger tbodies.. but I have read some do.. but they run others maps, so who knows.
     
  12. Jason.s

    Jason.s Active Member

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    Gone are the days of just porting the standard one. Back in the day you could bore out a standard 1.1 Cinq Sporting TB from 30mm to 40mm lol.
     
  13. superkarl

    superkarl MAN OF STEEL

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    only problems ive read about are the yanks who run maestro and cant map there own cars for **** so encounter problems when going for a bigger TB.

    whilst this isnt new at all. even across the pond inlet and tb doesnt get done all that often unless they are going for BIG power.
    The RMR got people umming and rrring, then the IE got people spending because it looks awesome.

    i just thought it good to pool info and tb sizes
     

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