Carbon fibre or aluminium custom inlet???

1. adamhighfield Frequent Poster Joined: Jan 2007 Shrewsbury Posts: 642 Saxo VTS

   #1 21st June 2007, 22:20

   I am going to custom make a plenum 4 my vts on throttle bodies, got a few questions 1st -
   
   2 ways of doing it -
   1 - Aluminium - bend & weld it at work
   2 - Carbon Fibre - Cut & glue it together
   Which 1 would be best???
   
   Also is it better with a lid on or off the box? I would prefer it off i think unless it would be a noticeable difference, then i would put it on.
   
   Thanks
   
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2. Gabbastard Saxperience Post Whore Joined: Dec 2002 United Kingdom Posts: 8390

   #2 21st June 2007, 22:25

   nothing wrong with al. Carbon fibre will allow less heat soak and looks better. Horses for courses really, just make sure there is a big enough gap between bellmouth and plenum wall.
3. adamhighfield Frequent Poster Joined: Jan 2007 Shrewsbury Posts: 642 Saxo VTS

   #3 23rd June 2007, 11:21

   the gap between the bell mouth and plenum wall, what should that be?
   
   Is this from the actual butterfly to the plenum wall? If not where?
   
   thanks
4. Gabbastard Saxperience Post Whore Joined: Dec 2002 United Kingdom Posts: 8390

   #4 23rd June 2007, 12:06

   If youre running throttle bodies, it will be from the bellmouth, or edge of the throttle trumpet to the plenum wall. Have it as large as possible, because you can disrupt the inlet pulses if the wall is too close. Sit all the throttle bodies where youll want them then build the box to suit round about it.
5. Ryanp Super Moderator Joined: Feb 2004 Tonbridge United Kingdom (England) Posts: 38236 Vtr, 172, throttle bodied track slut

   #5 23rd June 2007, 13:41

   what make are your bodies? as there are plenty of perfectly well made off the shelf airboxes out there
6. adamhighfield Frequent Poster Joined: Jan 2007 Shrewsbury Posts: 642 Saxo VTS

   #6 23rd June 2007, 19:59

   jenvey throttle bodies they are.
7. Ryanp Super Moderator Joined: Feb 2004 Tonbridge United Kingdom (England) Posts: 38236 Vtr, 172, throttle bodied track slut

   #7 23rd June 2007, 20:12

   Quote:

   Originally Posted by adamhighfield jenvey throttle bodies they are.

   DCOE or SF?
   
   id look around at a pre made box, at least yu know then its solid and works.
   
   if you get it wrong you could cause the engine to loose performance.
8. adamhighfield Frequent Poster Joined: Jan 2007 Shrewsbury Posts: 642 Saxo VTS

   #8 23rd June 2007, 20:23

   these 1s -
   
   
   
   45mm independant tbs