polished throttle body

  1. Frequent Poster Joined: Mar 2007 Sompting//Brighton Posts: 516 Wicked Red MK2 VTR
    #1
    just seen 1 of these on ebay and wondered
    1) do these giv a gd power boost
    &
    2) on average how much would it cost to hav this fitted?

    U'll av 2 excuse me coz i dnt know anythin about engines!
  2. Super Moderator Joined: Feb 2004 Tonbridge United Kingdom (England) Posts: 38236 Vtr, 172, throttle bodied track slut
    #2
    you can fit them yourself for free as its easy to do.

    Im not gonna comment on the TB itself. people get upset with my thoughts on them.
  3. Saxperience Post Whore Joined: Mar 2007 West Sussex . Posts: 5690 Subaru Impreza Wrx
    #3
    Ryan can you please pm me to tell me your thoughts on them as im thinking about buying one but im not to sure.
  4. Frequent Poster Joined: Mar 2007 Sompting//Brighton Posts: 516 Wicked Red MK2 VTR
    #4
    lol fair enuff cheers mate. i take it ur not rly a fan!
  5. Super Moderator Joined: Feb 2004 Tonbridge United Kingdom (England) Posts: 38236 Vtr, 172, throttle bodied track slut
    #5
    Quote:
    Originally Posted by thedon2008 View Post
    lol fair enuff cheers mate. i take it ur not rly a fan!
    not a fan, however there are lots of people on here who like em. up to you, t the end of the day theyre cheap to buy so even if its a marginal gain and you sell it you cant loose much £££
  6. Frequent Poster Joined: May 2006 Posts: 691 Mk 1 VTS poseidon blue
    #6
    Quote:
    Originally Posted by Ryan View Post
    you can fit them yourself for free as its easy to do.

    Im not gonna comment on the TB itself. people get upset with my thoughts on them.
    Post up your thoughts! Let battle commence – people need to know if they’re good or not… I can’t comment as I’ve never had one… better throttle response I’ve heard though and a deeper sound?
  7. Frequent Poster Joined: Mar 2007 Sompting//Brighton Posts: 516 Wicked Red MK2 VTR
    #7
    yer i say post em up!
  8. Super Moderator Joined: Feb 2004 Tonbridge United Kingdom (England) Posts: 38236 Vtr, 172, throttle bodied track slut
    #8
    Quote:
    Originally Posted by Joesnow View Post
    Post up your thoughts! Let battle commence – people need to know if they’re good or not… I can’t comment as I’ve never had one… better throttle response I’ve heard though and a deeper sound?
    not fitted one to mine because the quality of the work can vary to much, ive had mates with them and one made the car stay ok and one ran utter shite. As with any diy mod theyre not made from a casting so there are potential differenes that can occur. Im also a firm beliver that a larger inlet isnt allways the best route as if you bore it to much you can potentially loose power due to a reduction in gas speed.
  9. Saxperience Post Whore Joined: Mar 2007 West Sussex . Posts: 5690 Subaru Impreza Wrx
    #9
    Can you buy perfomance throttle bodys which have been bored out if its not best to buy a diy one as i think i heard people talk about them on here?
  10. Frequent Poster Joined: May 2006 Posts: 691 Mk 1 VTS poseidon blue
    #10
    Quote:
    Originally Posted by Ryan View Post
    not fitted one to mine because the quality of the work can vary to much, ive had mates with them and one made the car stay ok and one ran utter shite. As with any diy mod theyre not made from a casting so there are potential differenes that can occur. Im also a firm beliver that a larger inlet isnt allways the best route as if you bore it to much you can potentially loose power due to a reduction in gas speed.
    Hmm I’m not too sure?… the gas is moving at a slower speed with a bigger bore but the flow rate should increase as there’s less resistance? maybe your mates ran shite because a sensor was damaged when doing it? I saw a photo of one next to the standard one a while ago and it looked like it had promise! What’s happened to Spencecammedvts?? I’m sure he used to post all the time about these? Did he crash or summit??
  11. Frequent Poster Joined: May 2007 Evesham Posts: 949 3x mk1 Saxo VTR's 1x 1987 mk2 xr2
    #11
    Has anyone removed the counter weight on the butterfly on a TB wondered what performance gain that would have?
  12. Super Moderator Joined: Feb 2004 Tonbridge United Kingdom (England) Posts: 38236 Vtr, 172, throttle bodied track slut
    #12
    Quote:
    Originally Posted by Joesnow View Post
    Hmm I’m not too sure?… the gas is moving at a slower speed with a bigger bore but the flow rate should increase as there’s less resistance? maybe your mates ran shite because a sensor was damaged when doing it? I saw a photo of one next to the standard one a while ago and it looked like it had promise! What’s happened to Spencecammedvts?? I’m sure he used to post all the time about these? Did he crash or summit??
    he does them usually on here alot is spencer, as i said though, because its DIY it can be very dependant on what work was done and by who, as you know playing with the inlet system any innacuracy can cause potential problems, theres also the point why certain parts of the inlet system has rough serface to try and increase gas speed, through the 'vortex' effect.

    if its over bored though it doesnt mean the flow rate is more, it depends on how much is done in relation to gas speed and the actual volume passing through it at once. Because the tb is bigger it also doesnt mean the inlet manifold will get any further advantages.

    Its something theres alot of variables, some people rate em some dont. personally i dont fit DIY parts on my engine due to the fact that there can be high levels of differences in diy stuff
  13. Frequent Poster Joined: May 2006 Posts: 691 Mk 1 VTS poseidon blue
    #13
    Hmm I know what you mean about the DIY approach… but don’t you think that the majority of headworks a bit hit and miss too? I’ve never once heard on this forum of someone putting a head on a flow bench?

    Maybe it will work maybe it wont… I would have thought it would offer some gain though… at least the flow is fixed for all cylinders unlike a DIY head job?
  14. Super Moderator Joined: Feb 2004 Tonbridge United Kingdom (England) Posts: 38236 Vtr, 172, throttle bodied track slut
    #14
    Quote:
    Originally Posted by Joesnow View Post
    Hmm I know what you mean about the DIY approach… but don’t you think that the majority of headworks a bit hit and miss too? I’ve never once heard on this forum of someone putting a head on a flow bench?

    Maybe it will work maybe it wont… I would have thought it would offer some gain though… at least the flow is fixed for all cylinders unlike a DIY head job?
    qep bench test their heads to my knowlege, remeber hearing from matt that a new bunch of BV heads had a slightly higher flow rate when bench tested compaired to older batches.

    its just the DIY think that largely puts me off, ford engines for example have larger TBs available off the shelf where they are all going to have fixed castings so shouldnt have differences in. DIdnt think that the flow rate for each cylider would be the same in all cases, it would depend on cams etc. as we know that the wilder cams need TBs to prevent charge robbing.
  15. Frequent Poster Joined: May 2006 Posts: 691 Mk 1 VTS poseidon blue
    #15
    Quote:
    Originally Posted by Ryan View Post
    qep bench test their heads to my knowlege, remeber hearing from matt that a new bunch of BV heads had a slightly higher flow rate when bench tested compaired to older batches.

    its just the DIY think that largely puts me off, ford engines for example have larger TBs available off the shelf where they are all going to have fixed castings so shouldnt have differences in. DIdnt think that the flow rate for each cylider would be the same in all cases, it would depend on cams etc. as we know that the wilder cams need TBs to prevent charge robbing.
    QEP sound alright then… I don’t trust anything or anyone who doesn’t back up products with evidence that it’s been developed/engineered properly… just because it’s been made by Spencer in his shed doesn’t mean its any worse than some products on the market for example – all the exhausts available to buy which one to get? Some will have been properly developed and some will have been welded by Barry at powerflow, some will have been made in batches where the only design consideration is that it fits the mounting brackets!

    I don’t see the problem with the ported throttle bodies though, they look like they might work – worth a try imo… a better gamble than an exhaust?? If you don’t see gains just take it off and sell it for the same money on ebay – no loss

    Yeah the flow in each cylinder won’t be the same but would be better if there wasn’t much difference! Imagine the difference after someone attacks it with a dremil!
  16. Super Moderator Joined: Feb 2004 Tonbridge United Kingdom (England) Posts: 38236 Vtr, 172, throttle bodied track slut
    #16
    Quote:
    Originally Posted by Joesnow View Post
    QEP sound alright then… I don’t trust anything or anyone who doesn’t back up products with evidence that it’s been developed/engineered properly… just because it’s been made by Spencer in his shed doesn’t mean its any worse than some products on the market for example – all the exhausts available to buy which one to get? Some will have been properly developed and some will have been welded by Barry at powerflow, some will have been made in batches where the only design consideration is that it fits the mounting brackets!

    I don’t see the problem with the ported throttle bodies though, they look like they might work – worth a try imo… a better gamble than an exhaust?? If you don’t see gains just take it off and sell it for the same money on ebay – no loss

    Yeah the flow in each cylinder won’t be the same but would be better if there wasn’t much difference! Imagine the difference after someone attacks it with a dremil!
    dont get me started on POO floe exhausts lol!

    not all of the TBs are sold by spencer though which is why i say it depends on whos done the work as to what you will get.

    as said in early post its not much money if you buy and want rid. Ive got a nice set of 40mm jenveys myself to play with

    and QEP imo are one of the uks more reputable companies to deal with now, they built a nice spec 183 (genuine bhp) engine for a mate of mine
  17. Frequent Poster Joined: May 2006 Posts: 691 Mk 1 VTS poseidon blue
    #17
    Ahhh look at you with your throttle bodies! that’s why your taking a dig! Eeesh! haha
  18. Saxperience Forum Bum Joined: Nov 2005 MEASHAM United Kingdom (England) Posts: 3445 257bhp Ibiza Cupra Turbo
    #18
    im not dead! lol

    its me that sells them on ebay. "6ABNEY"

    just check out my feedback and you'll see that im no cowboy and actually know what can and cant be done. i allways do a prostine job and have recently started doing some inlet manifolds.
  19. Established Member Joined: Jun 2007 k-in-a, notts Posts: 1858 bmw 330ci sport !
    #19
    was looking at these on ebay too any one got a picture of a polished one ??
  20. Regular Poster Joined: Aug 2007 Bicester - England Posts: 328 2001 Black Saxo VTS
    #20
    What sort of power gains are you looking at for a polished throttle body on a VTS?
  21. Infrequent Poster Joined: Apr 2007 Stafford Posts: 235 Saxo VTS
    #21
    i had 1 on my vts before i sold it, dont really notice much tbh meant to be better throttle response and assist top end. it aint somethin your like WOAH major difference u feel response a bit better and 1st gear goes a bit better but thats it. just make sure u get 1 of some1 who knows what there doing and dont pay silly price mine cost me 23 quid but sent mine back in exchange. Sounds better than it really is.