Tial "style" 50mm bov

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Tial "style" 50mm bov

Postby RBPOWA » Wed Apr 29, 2009 8:12 pm

Has anyone had any issues with them? mine seems to be delayed by a few seconds, boost will actually go back through the turbo before it opens.

The flange is no more than 90 degree's against flow and about 200mm down stream from the TB, has a good vacume sorce, ive tried changing the spring.

it's on a rb20det with 16psi running t3t4 type turbo, any help will be appreciated. 8)
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Postby matt dunn » Wed Apr 29, 2009 8:21 pm

I run one and had no end of problems with it.

One of the problems I found is the spring in them is too hard,
miles to hard.

I built a tester to check seat pressure, and it took over 25psi of pressure to lift it off the seat,
but that's with no vacuum,

with vacuum it was not much better.

I put an 8 psi wastegate spring and that helped, but still no good.

In the end I cut the std spring, took about 3/4 of the length of it out,
and now it works sweet.

The other problem I had with another was just plain crap quality.
Kept sliding on an angle and jamming,
and to fix that one I put it back on trademe and sold it.
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Postby RBPOWA » Wed Apr 29, 2009 8:36 pm

Yea i thought the spring was a bit over the top, i'l prob end up cutting it down like you said.. i just couldnt justify the near $400 mark for the geniune one.. cheers
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Postby cogent » Wed Apr 29, 2009 9:47 pm

the legit tial springs show up on trademe frequently for cheap, that might be an option if you didnt want to $&#$% around with the spring in there.

http://www.trademe.co.nz/Browse/SearchR ... omAll=True

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Postby matt dunn » Wed Apr 29, 2009 9:57 pm

cogent wrote:the legit tial springs show up on trademe frequently for cheap, that might be an option if you didnt want to $&#$% around with the spring in there.

http://www.trademe.co.nz/Browse/SearchR ... omAll=True

"damn how you get it so low?'
"chops all round bro even in the 'gate"


I tried even the genuine tial springs and found them too stiff in the non genuine gate.

Best with a std spring was a 7psi tial wastegate spring in it,
which actually allowed it to open.

Mine now with the cut spring, it just not quite open at idle,
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Postby Bazda » Thu Apr 30, 2009 12:14 pm

Good BOVs, Just gota cut the spring to suit as Matt has said.
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Postby rollaholic » Thu Apr 30, 2009 1:33 pm

didnt the centre come out of one of yours matt, and end up jammed in an intake runner or something similar? or am i thinking of the wrong person
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Postby matt dunn » Thu Apr 30, 2009 4:01 pm

rollaholic wrote:didnt the centre come out of one of yours matt, and end up jammed in an intake runner or something similar? or am i thinking of the wrong person


yeah, and that,

fixed that with loctite, but still had spring issues after that.
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Postby gasman » Thu Apr 30, 2009 4:06 pm

Ive got a style one and the spring is a bit on the hard side, tried running my friend’s original tial bov and it worked better but didn’t sound as good for some reason. I will get a original one eventually when I get round to it.
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Postby ChaosAD » Thu Apr 30, 2009 7:20 pm

Fuk, for the price of a new 'style' one just get a 2nd hand plumback turbosmart or something
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Postby RBPOWA » Fri May 01, 2009 11:15 am

i'll pass
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Postby tsoob » Fri May 01, 2009 11:43 pm

been saying this for a long time now,,

buy it cheap buy it twice!!

actually a little O/T but my mate ryan is due his 4th turbo, and this time he realises that a cheap chinese one is not the answer.

Do the smart thing and buy a genuine part to start with.

I have in stock GFB basic at $270. Also it wont be very long until the MSE bov is available (we are product launching it here next saturday)

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Postby RBPOWA » Sun May 03, 2009 8:31 pm

All it needed was the spring shortened and it works fine. . . . .So YOU can go back to admiring your "jdm jewl christened bov"
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Postby thegreatestben » Sun May 03, 2009 9:20 pm

$&#$% me you have a shit attitude.
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Postby RBPOWA » Mon May 04, 2009 8:21 am

nah im sweet just dont need another bov. :roll:

sorry tsoob if it offended you.
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