vts throttle body

11th January 2005, 19:49

hi all
just wondering if anything can be modified on the vts throttle body to improve performance.

11th January 2005, 20:31

it can be ported by having some of the small lips inside it smoothed off and the screws on the butterfly itself countersunk to reduce resistance. Not much though

11th January 2005, 20:47

cheers scott
is it worth the expense

11th January 2005, 20:52

i wouldnt say so to be honest its not that restricitive, better things to spend the money on first

12th January 2005, 08:32

if you trim the opening of the throotle by 1.2mm you will gain 3hp and 4nm tork

12th January 2005, 23:39

how can you do that

13th January 2005, 00:02

how about the VTR's t/b? Also does any1 know if a Rallye t/b will fit onto a silertop mk1 vtr engine? and wot would be involved guessin that its not gonna be a straight 4ward swop. Cheers

13th January 2005, 03:57

the rallye tb will fit the black top engine but no the silver top without work

13th January 2005, 14:50

You can port the tb yourself, its dead easy. Just make sure you keep away from the air temp sensor! Use a small grinding stone that fits into a drill and make sure you keep hoovering out the all the shite that comes off! Job done saving u about £50