GTi-6 valves
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Thread: GTi-6 valves

  1. #1
    Budding Architect ???? pugrambo's Avatar
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    Jul 2000
    Parkes - N.S.W - Australia - Earth

    GTi-6 valves

    ok guys
    are there any valves other than standard ones that are worth putting into a GTi-6 head ?
    or are there valves good enough
    this is without doing very much to the head
    i realise that bigger valves are going to reduce bottom end torque

    3 x '78 604 SL

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    1 x 2000 Citroen XM,

    1 x '98 306 GTi6 sadly sold

    1 x secret project

    1 x '98 406 STDT troop carrier and i don't care if it stinks, i don't sniff it's arse Death by wank tank

    1 x '99 406SV 5spd wagon, time to burn more fuel

    1 x 1994 605 SV3.0

  2. #2
    Guru davemcbean's Avatar
    Join Date
    Apr 2001
    Camden NSW & Selwyn NZ

    i realise that bigger valves are going to reduce bottom end torque
    Only slightly. The effect isn't as bad as many people make out. Really the effect of fitting larger valves is the same as fitting a high lift cam with the same duration. Torque will usually be superior from 2500rpm up, depending on the engine set-up.


    <small>[ 16 March 2003, 12:53 PM: Message edited by: davemcbean ]</small>
    NZ Fleet
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  3. #3
    1000+ Posts CHRI'S16's Avatar
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    Jun 2002
    Pugrambo, whilst i can't answer your question, i know someone who could. Esscargo at Atarmon, im not sure what you think, or heard about these lads but they do rally/race 306's so i think they tinker with em enough. They recently got 220 Hp from the GTi6 motor with single throttle body!!! nice power wouldn't you say. Ring and ask them for their engine builder's name and number im sure they will be happy to help. Also ask how much the builder charged, i don;t think the Esscargo lads would have just sent it of to anyone.
    Also ask YELO20 (Darren) who is rebuilding his 8V 205 gti motor, he too might of some help.
    Good luck.

    ps, have you thought about a 3D angle polish on the stock valves?
    ... ptui!

  4. #4
    Fellow Frogger! MYT205's Avatar
    Join Date
    Sep 2001
    Why do you want bigger valves? Have you increased the flow into and out of the head?

    I wouldn't imagine that larger valves will make a big difference on an otherwise standard engine. I would be looking at getting the head ported or a bit bigger cam before getting larger valves.


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