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> Injector Upgrade, new parts for fuel injection
Dave_Darling
post Apr 16 2018, 07:20 PM
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QUOTE(McMark @ Apr 16 2018, 01:19 PM) *
The problem there is that the 1.7 an 2.0 runners have the fittings at different angles. So any angle I build in will make two versions necessary. (IMG:style_emoticons/default/pinch.gif)


Ah, poop. No good compromise angle that will work OK with either, then? That's a bummer.

--DD
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porsche913b_sp
post Apr 19 2018, 06:41 PM
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Nice (IMG:style_emoticons/default/smilie_pokal.gif) when are you taking orders (IMG:style_emoticons/default/biggrin.gif)
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jcd914
post Apr 19 2018, 09:08 PM
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Why not build a fuel rail with proper openings for the injectors to fit into and seal as designed?
The rail could have brackets that attach to the studs on the intake runners and hose connections on each end.
It would not look stock but would clean up the engine compartment and eliminate the injector elbow hoses.

That is the plan I have for the megasquirt engine in the garage.

Jim
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914werke
post Apr 19 2018, 09:40 PM
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jcd914
post Apr 19 2018, 09:48 PM
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Yes I was thinking of something like that.

But I like the smaller injectors Mark found and I think with them a bit lower profile rail could be mounted.

Jim
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edwin
post Apr 23 2018, 08:17 AM
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Have you changed the lower orings on the injectors?
They look different to the standard round oring that is normally fitted to these style injectors. I assume you are fitting original style square rings?
Cheers
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McMark
post Apr 23 2018, 12:04 PM
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QUOTE(jcd914 @ Apr 19 2018, 11:08 PM) *
Why not build a fuel rail with proper openings for the injectors to fit into and seal as designed?
I looked at it, but machining costs were just as high and I don't like the way it looks. These brackets hold the injectors FIRMLY. I will still be doing pressure testing for possible leaks, but my initial impression of them mounted is that a fuel rail wouldn't add anything for rigidity.

QUOTE(edwin @ Apr 23 2018, 10:17 AM) *
Have you changed the lower orings on the injectors?
They look different to the standard round oring that is normally fitted to these style injectors. I assume you are fitting original style square rings?
Cheers
Yup. I cut off the round oring and the plastic support, then the stock square o-ring fits perfectly. Lucky accident.
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John Jentz
post Apr 24 2018, 08:04 AM
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QUOTE(rdauenhauer @ Apr 19 2018, 11:40 PM) *

Will the engine go back in with those rails? With straight hoses the existing rails hit the engine shelf. These will not bend out of the way.
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Mikey914
post Apr 24 2018, 09:19 AM
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I always remove my fuel rails (at least now), as it's easy to damage the hose on the injectors.
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McMark
post Apr 24 2018, 09:37 AM
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(IMG:style_emoticons/default/agree.gif) Mike's got it. Pulling the injectors off the intake is the best way to be safe.

But, no, these wouldn't clear the suspension ears.
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