Porting the 'zaust manafold

  1. Frequent Poster Joined: Oct 2006 Chesterfield Posts: 890 Mk1 Vtr
    #1
    Quick one, i can remember from somewhere tidying up the standard manafold with a file and sandpaper.

    Is there any point or should i just wait for till i get a 4-2-1?

    Shane
  2. Saxperience Addict Joined: Apr 2006 Frome, down deepest, darkest zummerset Posts: 12971 VTRallye
    #2
    wait till you get a 4-2-1
  3. Saxperience Forum Bum Joined: Jan 2007 Weston-S-Mare Posts: 3713 Racing Bronze Mazda MX-5
    #3
    as said above mate.

    no point really, won't notice anything, it wont add any more value to it, so just wait till you get the 4-2-1.
  4. Saxperience Post Whore Joined: Jun 2006 North East Posts: 5289
    #4
    I heard this can be very good coupled with a ported and polished cylinder head you can see some steady gains by opening the manifold ports and smoothing them off.

    But as stated not much point unless you have a 4 branch and plant to get the head work done
  5. Saxperience Hardcore! Joined: Mar 2005 Newcastle Upon Tyne Posts: 19910 CW Honda Integra DC5
    #5
    was on suzukituning.co.uk
  6. Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)
    #6
    if you start with a decent SS manifold rather than a cast one then there will be hopefully less work to do to match the ports and neaten everything up.. perhaps not with a raceland though lol as the quality is poorer than the priceir option.

    Worth doing a bit of research on the subject before attacking with a dremel or hand held file. Its important to keep the gas speed high so opening up the ports isn't always the way to go
  7. Frequent Poster Joined: Oct 2006 Chesterfield Posts: 890 Mk1 Vtr
    #7
    nice one lads il just wait for a 4-2-1
  8. Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)
    #8
    with regards to the manifold itself, what you need to look for is where the pieces are welded together. Some weld will penetrate inside the manifold and this needs to be taken down to improve flow...
  9. Established Member Joined: Feb 2007 letterkenny,donegal,ireland Posts: 1338 citroen saxo VTS
    #9
    Quote:
    Originally Posted by KamRacing View Post
    with regards to the manifold itself, what you need to look for is where the pieces are welded together. Some weld will penetrate inside the manifold and this needs to be taken down to improve flow...
    thatll naw be hard or anything
  10. Frequent Poster Joined: Nov 2007 Plymouth Posts: 621 S2 ERST
    #10
    get hold of a new mani first bud