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Fuel rail for Megasquirt conversion

 
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Aplaja  



Joined: 25 May 2016
Posts: 7
Location: Finland

PostPosted: Sat Nov 04, 2017 4:37 am    Post subject: Fuel rail for Megasquirt conversion Reply with quote

I have '83 Porsche 924 NA and I'm making EFI conversion. I already have injectors which are from Audi TT but now I need fuel rail for them. I have searched a long time now a fuel rail that would fit in. I have told that injector center to center spacing in 924 is 95mm or 96mm but I haven't found any rail which have this spacing and a return line. I read from internet that Zetec engine fuel rail would fit but which of them?

Sorry for bad english.
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Ozzie  



Joined: 12 Mar 2005
Posts: 4408
Location: Townsville, Qld. Australia

PostPosted: Sat Nov 04, 2017 7:46 am    Post subject: Reply with quote

I used a FORD FIESTA MK6/7 2.0 DURATEC ST150 FUEL RAIL
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Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
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3forall  



Joined: 29 May 2015
Posts: 17
Location: Canada

PostPosted: Sat Nov 04, 2017 10:52 am    Post subject: Reply with quote

The ford zetec one will fit but does not have a return line. I used one from a Chrysler Lebaron Turbo, the spacing is correct, it has a return line and an integrated Bosch fuel pressure regulator. They are rare but can be found on early Chrysler/Dodge k-series turbo engines.
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Raceboy  



Joined: 01 Mar 2004
Posts: 2292
Location: Estonia, Europe

PostPosted: Sat Nov 04, 2017 5:32 pm    Post subject: Reply with quote

It is possible to TIG weld a return line to the fuel rail.
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Aplaja  



Joined: 25 May 2016
Posts: 7
Location: Finland

PostPosted: Sun Nov 12, 2017 4:29 am    Post subject: Reply with quote

Can somebody send me a picture of the zetec fuel rail that fits. There are several zetec fuel rails and all of them doesn't fit.
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Ozzie  



Joined: 12 Mar 2005
Posts: 4408
Location: Townsville, Qld. Australia

PostPosted: Mon Nov 13, 2017 11:37 am    Post subject: Reply with quote

https://www.ebay.com.au/itm/NEW-Ford-Focus-Mondeo-ST150-Galaxy-S-Max-2-0-Duratec-Fuel-Rail-Injectors/362137661899?hash=item54511631cb:g:qoYAAOSwopRYcojx

should fit, could tig a return line if needed.
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Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance
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Britain  



Joined: 26 Nov 2013
Posts: 104
Location: Hillsboro, OR

PostPosted: Tue Dec 05, 2017 11:08 am    Post subject: Reply with quote

I am selling my EFI set-up in the classified.

Here is what I did for the fuel rail set-up for Std Bosch Injectors.

I made a custom Fuel rail and mounts. Then I machined transmission drail plugs for injector bungs that screw into the CIS ports.
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Britain  



Joined: 26 Nov 2013
Posts: 104
Location: Hillsboro, OR

PostPosted: Tue Dec 05, 2017 11:09 am    Post subject: Reply with quote

I also made a mount for a trigger wheel that uses an off-the-shelf Chevy sensor and machined an S2 intake manifold for a Subaru throttle body so I can get a TPS sensor. I also machined the fitting on the back of the head for a CLT sensor.
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Raceboy  



Joined: 01 Mar 2004
Posts: 2292
Location: Estonia, Europe

PostPosted: Sat Dec 09, 2017 9:57 am    Post subject: Reply with quote

You can buy a direct replacement CLT temp sensor that fits in place of thermo switch. Cost is like 6 euros or so.
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'83 924 2.5 16v Turbo, 470hp
'67 911 Irish Green hotrod, 2.4S
'89 944 S2
'91 944 S2
'78 924
'78 911 SC 2.5 ss Turbo "Martini"
'82 924S/931 "Gulf" racecar, 330 hp, sold
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche
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Ozzie  



Joined: 12 Mar 2005
Posts: 4408
Location: Townsville, Qld. Australia

PostPosted: Mon Dec 18, 2017 1:09 pm    Post subject: Reply with quote

I did but had to get an adaptor to fit
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Its AUTO and its BLACK
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theclassicera  



Joined: 03 Jul 2015
Posts: 16
Location: Wiltshire

PostPosted: Thu Feb 01, 2018 7:52 pm    Post subject: Fuel rail Reply with quote

If you go on www.trigger-wheels.com they can supply a blank fuel rail and crank sensor.
Be careful on the hole centres, my head has measured at 93mm but between 3 & 4 cylinder its 95mm. But the I have been using a CMM Faro arm to measure which is uber accurate!

I have made an adaptor to take a 944 throttle body with Bosch TPS[/img]
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morghen  



Joined: 21 Jan 2005
Posts: 7825
Location: Romania

PostPosted: Fri Feb 02, 2018 12:48 am    Post subject: Re: Fuel rail Reply with quote

Thanks for posting this link. Very good prices.
About 300-350 eur can set you up for EFI conversion, the rest would be wiring and ECU.

theclassicera wrote:
If you go on www.trigger-wheels.com they can supply a blank fuel rail and crank sensor.
Be careful on the hole centres, my head has measured at 93mm but between 3 & 4 cylinder its 95mm. But the I have been using a CMM Faro arm to measure which is uber accurate!

I have made an adaptor to take a 944 throttle body with Bosch TPS[/img]

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RC  



Joined: 25 Mar 2007
Posts: 2624
Location: Australia

PostPosted: Sat Feb 03, 2018 12:30 am    Post subject: Re: Fuel rail Reply with quote

theclassicera wrote:
Be careful on the hole centres, my head has measured at 93mm but between 3 & 4 cylinder its 95mm. But the I have been using a CMM Faro arm to measure which is uber accurate


Where / how are you measuring centres?
Perhaps measure again.
Any tool is only as accurate as it`s operator, indexing/ calibration or the faces / locations measured.
FYI, unless you have an uber rare head, cylinder bore, head / valve/ injector C2C spacing is 95mm between 1-2-3-4.
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CorsePerVita  



Joined: 25 Jul 2008
Posts: 1994
Location: Redmond, Oregon

PostPosted: Thu Feb 22, 2018 7:44 am    Post subject: Reply with quote

Honda accord 1993/1994 fuel rails and injectors are a direct fit and require nothing more than fabricating a bracket to hold it in place. I'll snag pics when I get home.
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gegge  



Joined: 27 Jul 2007
Posts: 1020
Location: Sweden

PostPosted: Thu Feb 22, 2018 10:09 pm    Post subject: Reply with quote

Honda F22, K20 and H22 are all 94mm. Ford Duratec and Mazda L are 96mm IIRC. Think the smaller Zetec heritaged the CVH bore spacing of 92mm?
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