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darrensvtr
27th January 2006, 22:35
this has probably been asked before and ive probably been told but forgot but whats the diference between a 4-1 manifold and a 4-2-1? i mean whats beter?
Sean
27th January 2006, 23:02
4-2-1 improves low down power with a bit less at the top end.
4-1 improves top end but gives a bit less at the bottom.

read here (http://www.gmcmotorsport.co.uk/manifold.html)
smileys/smiley4.gif
Jaffacake106
27th January 2006, 23:02
They are branched differently, which one you go for depends entirely on the setup your after performance wise.
Saxo_Wilson
27th January 2006, 23:04
4-1 for top end gain 4-2-1 for low end gain. Try searching to find out more information

Edit - I was abit slow. smileys/smiley9.gif
darrensvtr
27th January 2006, 23:07
nice one cheers guys.
Mr_Hush
28th January 2006, 00:33
which would be better for acceleration? 4-2-1?
Saxo_Wilson
28th January 2006, 00:51
Thats what they say.
blackvts
28th January 2006, 01:09
i just had a 4-2-1 fitted on my VTS it won't stop spining in 1st gear! smileys/smiley17.gif
Mr_Hush
28th January 2006, 01:24
i just had a 4-2-1 fitted on my VTS it won't stop spining in 1st gear! smileys/smiley17.gif

what make?
Jaffacake106
28th January 2006, 01:29
i just had a 4-2-1 fitted on my VTS it won't stop spining in 1st gear! smileys/smiley17.gif

Thats your driving not the manifold lol