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Aplaja
Joined: 25 May 2016 Posts: 7 Location: Finland
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Posted: Sat Nov 04, 2017 4:37 am Post subject: Fuel rail for Megasquirt conversion |
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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?
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Ozzie

Joined: 12 Mar 2005 Posts: 4404 Location: Townsville, Qld. Australia
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Posted: Sat Nov 04, 2017 7:46 am Post subject: |
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I used a FORD FIESTA MK6/7 2.0 DURATEC ST150 FUEL RAIL _________________ 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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3forall

Joined: 29 May 2015 Posts: 16 Location: Canada
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Posted: Sat Nov 04, 2017 10:52 am Post subject: |
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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. _________________ 1981 924 Weissach edition
1982 931 - Megasquirt and liquid intercooler
1969 911 |
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Raceboy

Joined: 01 Mar 2004 Posts: 2292 Location: Estonia, Europe
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Posted: Sat Nov 04, 2017 5:32 pm Post subject: |
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It is possible to TIG weld a return line to the fuel rail. _________________ '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.
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Aplaja
Joined: 25 May 2016 Posts: 7 Location: Finland
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Posted: Sun Nov 12, 2017 4:29 am Post subject: |
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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: 4404 Location: Townsville, Qld. Australia
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Britain
Joined: 26 Nov 2013 Posts: 96 Location: Hillsboro, OR
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Posted: Tue Dec 05, 2017 11:08 am Post subject: |
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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: 96 Location: Hillsboro, OR
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Posted: Tue Dec 05, 2017 11:09 am Post subject: |
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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
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Posted: Sat Dec 09, 2017 9:57 am Post subject: |
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You can buy a direct replacement CLT temp sensor that fits in place of thermo switch. Cost is like 6 euros or so. _________________ '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.
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Ozzie

Joined: 12 Mar 2005 Posts: 4404 Location: Townsville, Qld. Australia
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Posted: Mon Dec 18, 2017 1:09 pm Post subject: |
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I did but had to get an adaptor to fit _________________ 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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theclassicera
Joined: 03 Jul 2015 Posts: 16 Location: Wiltshire
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Posted: Thu Feb 01, 2018 7:52 pm Post subject: Fuel rail |
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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: 7765 Location: Romania
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Posted: Fri Feb 02, 2018 12:48 am Post subject: Re: Fuel rail |
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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] |
_________________ red 924 and not red 924 |
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RC

Joined: 25 Mar 2007 Posts: 2624 Location: Australia
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Posted: Sat Feb 03, 2018 12:30 am Post subject: Re: Fuel rail |
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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. _________________ World`s quickest 924 2L slushbox
Allan @ DTA wrote: | I have no issue with superchargers, they are for guys who want to drive a car rather than talk about horsepower with their baseball cap on backwards |
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CorsePerVita

Joined: 25 Jul 2008 Posts: 1994 Location: Redmond, Oregon
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Posted: Thu Feb 22, 2018 7:44 am Post subject: |
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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. _________________ - 1977 Porsche 924 2.0 N/A (Trackday Project)
- 1979 Porsche 924 2.0 N/A (The other daily)
- 1980 Porsche 931 (Daily)
- 1987 Lamborghini Jalpa
- 1999 Ducati 900SS |
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gegge

Joined: 27 Jul 2007 Posts: 1019 Location: Sweden
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Posted: Thu Feb 22, 2018 10:09 pm Post subject: |
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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? _________________ Carl Fredrik Torkildsen
924 turbo -81 Carrera GT clone LSD Coilovers
924 -85 DP kit, BBS RS, M030 and tuned engine
924s -86 Black on black with low ET "Phonies" |
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