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  #51  
Old 28-05-2011, 11:44 PM
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Quote:
Originally Posted by Rossco View Post
I know, I like my off boost economy too though!
so a side effect of decapping stock injectors means much crappier economy compared to injectors are that designed to flow at a similar rate? Is this because the spray pattern will changed to something less efficient?
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  #52  
Old 28-05-2011, 11:46 PM
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Sorry to hijack but I think a Rossco tech spec thread on injectors would be awesome

Interested to know how much my fuel economy will decrease with my 725's.
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  #53  
Old 29-05-2011, 12:30 AM
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Quote:
Originally Posted by Shinobiken View Post
so a side effect of decapping stock injectors means much crappier economy compared to injectors are that designed to flow at a similar rate? Is this because the spray pattern will changed to something less efficient?
Pretty much, decapping leads to a single cone spray pattern v a 4 cone stock spray. I've been told decaps are harder to get constant low duty cycle cruise AFR's with.

I'll probably buy a proper set of 650's when the time arises.
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  #54  
Old 02-06-2011, 02:34 PM
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washed bores with decaps springs to mind also
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  #55  
Old 02-06-2011, 02:53 PM
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People posting crap up and not having a clue about injectors, where they are mounted and what not makes me laugh.

Rather than post cryptic messages, post up facts.

99.99% of the issue with larger or decapped injectors is down to the tuner and the tuning program. Anyone who gets worse fuel economy with larger injectors on cruise, should go see their tuner about it.
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  #56  
Old 02-06-2011, 06:11 PM
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my fuel economy is still the same at ~400km city/fwy driving before and after decap/tune
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  #57  
Old 02-06-2011, 06:14 PM
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Topic has gone a little of track. Happy for this to be closed.
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  #58  
Old 02-06-2011, 06:27 PM
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never mind....
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  #59  
Old 02-06-2011, 09:23 PM
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ok so a mate is helping............doing all the work.

We took a cover off and found this

Gents place your bets.

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  #60  
Old 02-06-2011, 09:27 PM
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Tensioner or idler failed? Caused the timing belt to jump a tooth or two?
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