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Difference in Fuel rails T34 & T25?

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Old Sep 21, 2008 | 09:20 AM
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Default Difference in Fuel rails T34 & T25?

I believe I read this somewhere on the board , but I can't find the thread anymore
Is there any difference in between these rails, as I want to weld a fuelpressure sensor onto my T25 rail. However I still have a T34 rail lying around with boss welded on already. Just wanted to know if these are interchangeable.
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Old Sep 21, 2008 | 02:05 PM
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Originally Posted by Jo
I believe I read this somewhere on the board , but I can't find the thread anymore
Is there any difference in between these rails, as I want to weld a fuelpressure sensor onto my T25 rail. However I still have a T34 rail lying around with boss welded on already. Just wanted to know if these are interchangeable.

No difference.
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Old Sep 21, 2008 | 03:25 PM
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They are different, the cups that the injectors fit in are longer on the small t due to the different inlet manifold design,the mounting lugs on the plenum of a small turbo are a lot thicker thus placing the rail further back, if u fit a big t rail to a small t car then the injectors will barely seal at the inlet manifold side,not good where petrol is concerned.......
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Old Sep 21, 2008 | 04:19 PM
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Originally Posted by Yeti Racing
They are different, the cups that the injectors fit in are longer on the small t due to the different inlet manifold design,the mounting lugs on the plenum of a small turbo are a lot thicker thus placing the rail further back, if u fit a big t rail to a small t car then the injectors will barely seal at the inlet manifold side,not good where petrol is concerned.......
I'll stand corrected then.....and go and take the BT rail off my car!!
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Old Sep 21, 2008 | 04:38 PM
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Originally Posted by Yeti Racing
They are different, the cups that the injectors fit in are longer on the small t due to the different inlet manifold design,the mounting lugs on the plenum of a small turbo are a lot thicker thus placing the rail further back, if u fit a big t rail to a small t car then the injectors will barely seal at the inlet manifold side,not good where petrol is concerned.......
now where do i recognise that from??? lol, they will physically fit but the injectors wont go in as far as they should, so not worth the risk

Last edited by THE RADMAN; Sep 21, 2008 at 04:42 PM.
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Old Sep 21, 2008 | 06:50 PM
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Ok, thanks for the replies
The hunt for a T25 fuel rail is open !
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Old Sep 21, 2008 | 07:09 PM
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borrowing's fun Nick!
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