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Header tank insulating spacers? And where's SEARCH gone?

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Old 09 July 2007, 12:41 PM
  #31  
The rookie
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Tuffnol is a brand name for fibre reiforced phenolic (a plastic that used to be common for carb spacers.

If you go to Expansion tank isolation - Subaru Forester Owners Forum you can see the ones I made, I have some spare tuffnol somewhere as well.

Simon
Old 09 July 2007, 06:01 PM
  #32  
silent running
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Nice work.
Old 09 July 2007, 08:47 PM
  #33  
powercrazed
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This may seem a silly qiestion but, if you were running an aftermarket ecu and fitted these spacers, would the map need altering due to less heat build up?

Nathan
Old 09 July 2007, 09:53 PM
  #34  
p1mark
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Originally Posted by powercrazed
This may seem a silly qiestion but, if you were running an aftermarket ecu and fitted these spacers, would the map need altering due to less heat build up?

Nathan
No.
Old 09 July 2007, 09:59 PM
  #35  
silent running
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No, but it would contribute to general heat management. If you did this, fitted insulating manifold spacers, heat wrapped your whole exhaust from headers to downpipe, you might have done enough to get a little more out of the map.
Old 10 July 2007, 02:02 PM
  #36  
swisstonihasher
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Very interesting, I did the bodge of just using heat reflective material without changing bolt positions so heat transfer still occurs.

Like P1 Mark's excellent setup...very tidy...not keen on the black FMIC pipework though as black material absorbs heat, better to reflect!
Old 10 July 2007, 02:27 PM
  #37  
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Black also radiates more heat...so if the pipe is hotter than the surrounding air, better to be black, if its colder, better to be shiny!

Simon
Old 10 July 2007, 02:32 PM
  #38  
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Doh, didn't think of that...good point.

I just use water injection on 3d map, sweet, ice cool.
Old 11 July 2007, 10:39 PM
  #39  
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Banny, I think there was some confusion. I was referring to inlet manifold spacers which RCMS keep in stock along with inlet manifold gaskets.
These are made in batches on CNC equipment.
If you buy a set of these, Olly will give you a spare Tufnol off cut and you can make your own header tank spacers.
Cheers.
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