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Location:
Sydney
Registered:
April 2004
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TVIS warp on 4agte??? true or not??
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Fri, 15 April 2005 01:46
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ok,
i know evryone who has read the 4agte article will instantly say that the butterfy valves on the TVIS system will warp, break off and end up in ur combustion chamber.
BUT!
i just want to know if any1 has experienced this??
1ggte run TVIS and they dont seem to have any problems.
are the two systems built differently or is this just what every1 does becos that is what they believe to b true??
does anybody have some actual facts??
im asking as im considering leaving it on a 4agte so improve low down torque and throttle response off boost!
also wouldnt the butterflies be open by the time serious 'boost' was made?? thus the butterflies wouldnt actually have to face much abuse??!
thanks
James
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Location:
Sydney
Registered:
April 2004
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Re: TVIS warp on 4agte??? true or not??
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Fri, 15 April 2005 06:26
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anyone?
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Toymods Board Member
I supported Toymods
Location:
Turramurra, Sydney.
Registered:
May 2002
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Re: TVIS warp on 4agte??? true or not??
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Fri, 15 April 2005 09:28
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I reckon there's no way it would happen, as there would be equal pressure either side of the butterflies. Once the air is past the T-VIS the port in the head is open to both valves & the back of the closed butterfly, so I just don't see it happening.
I think it would be a worthy experiment, & fairly easy to remove to compare any difference. It would prolly only be worth trying on a low boost application, once you start running any moderate pressure they would likely provide somewhat of a restriction to peak airflow (when open of course).
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Location:
Bundaberg, Qld.
Registered:
May 2002
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Re: TVIS warp on 4agte??? true or not??
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Fri, 15 April 2005 12:45
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some models of the 3sgte use a t-vis set-up from factory dont they?
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Location:
Perth
Registered:
September 2003
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Location:
Batemans Bay, NSW
Registered:
February 2005
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Re: TVIS warp on 4agte??? true or not??
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Fri, 15 April 2005 15:04
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interesting............
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Location:
S.E suberbs, Vic
Registered:
December 2003
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Re: TVIS warp on 4agte??? true or not??
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Fri, 15 April 2005 22:37
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never heard of it before, sounds kinda stupid if you ask me, I mean for a start why would they warp and even if they did they can't break. and I dont see it any more likely than the throttle body falling in, besides I dont think one of them could make it past a valve.
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Location:
nelson, new zealand
Registered:
October 2004
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Re: TVIS warp on 4agte??? true or not??
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Fri, 15 April 2005 23:51
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never heard that one before.....
sounds like a thoery from an internet mechanic to me....
unless going mad id leave the tvis there..... ppl i know who have tried both reckon its better there, helps off boost performance, and you cant boost it all the time! 
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Toymods Board Member
I supported Toymods
Location:
Turramurra, Sydney.
Registered:
May 2002
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Re: TVIS warp on 4agte??? true or not??
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Sat, 16 April 2005 00:43
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| retro wrote on Sat, 16 April 2005 00:37 |
that equates to 13lb of force on the TVIS valve (pressure being equal and undeminished in all directions)
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Yeah, that's if the other side of the valve was sealed off to this pressure, which it is not. The pressure is equal both sides of the valve, so there would be NO force acting on the valve to "warp" it.
I see no way this could happen.
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Location:
Sydney
Registered:
April 2004
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Re: TVIS warp on 4agte??? true or not??
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Sat, 16 April 2005 03:40
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thanks guys!!
im gonna do it, i believe that it is just a internet mechanic story as well!!
James
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Location:
Toronto, Downtown
Registered:
September 2004
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Re: TVIS warp on 4agte??? true or not??
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Sat, 16 April 2005 05:12
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wouldnt the tvi-s just end up as a restriction in the inlet in a boosted application?
The butterflies are prettey hard to remove but better safe than sorry i reckon im removing mine.
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Location:
Sydney
Registered:
April 2004
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Re: TVIS warp on 4agte??? true or not??
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Sun, 17 April 2005 03:22
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yeah... but this is my street car and benifits low down would be good.
but, i dont think i can do it. i wont be able to control it unless i have an output from the computer to the soleniod, so it looks like i might ebd up taking it out anyway
thanks
James
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