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> should I junk my fuel injection for my 1.7 for dual 44idf Webers, Fuel injection versus carbs
MrPurdy
post Jul 27 2020, 09:00 AM
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Hello,

I recently bought a 1973 Porsche 914 with a 1.7 and fuel injection. The car ran ok when first purchased, However, I went to start the car, it would not fire up. Got spark etc, but no fuel. I noticed most of the fuel injection wiring harness is brittle and or have cracked wires. I have tried cutting out the old wiring where I can, however to no such luck.I would like to keep the car fuel injected, however, I can't find where to buy a new wiring harness and or don't want to assume that is the only cause.

I recently have been discussing with other past owners of the 914 and two have said to go with Dual Weber 44's or 48's? if I went this route, do I need to change out my distributor and Cam? I know the fuel pump will need to be replaced.

I would like some input and or advise from someone who may have already traded out the fuel injection for carbs.

Lastly, Im an old VW guy and know carbs but the wiring on this fuel injection seems it could take me down the rabbit hole to more problems and cost.

Thanks

Mark
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ctc911ctc
post Jul 27 2020, 04:28 PM
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I was there once upon a time, I stuck with FI and I am glad that I did - once I got it running correctly (took a while) it is a stock car with dozens of experts. If you go with carbs you are trail blazing - very few people will have your setup.

If you stick with the FI, grab the plenum and make certain it is tight - this is the source of countless trouble when addressing the FI systems.....then the MPS.......

GOOD LUCK!

CTC911CTC
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thelogo
post Jul 27 2020, 08:22 PM
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it is a stock car with dozens of experts.

CTC911CTC
[/quote]





You heard the man
................................... Dozen of experts... (IMG:style_emoticons/default/screwy.gif) (IMG:style_emoticons/default/pray.gif) (IMG:style_emoticons/default/av-943.gif)


So if your f.i go's down there are about ...12 guys in the world who can fix it .... Id say thats about right ... Its unfortunate but its accurate. Ask 12000 mechanic s about djet . 1 of em may be able to help
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ClayPerrine
post Jul 28 2020, 06:51 AM
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[quote name='thelogo' date='Jul 27 2020, 09:22 PM' post='2837708']
it is a stock car with dozens of experts.

CTC911CTC
[/quote]





You heard the man
................................... Dozen of experts... (IMG:style_emoticons/default/screwy.gif) (IMG:style_emoticons/default/pray.gif) (IMG:style_emoticons/default/av-943.gif)


So if your f.i go's down there are about ...12 guys in the world who can fix it .... Id say thats about right ... Its unfortunate but its accurate. Ask 12000 mechanic s about djet . 1 of em may be able to help
[/quote]


There are lots of D-Jet experts out there. It was used on everything from Mercedes, to Volvo, VW, Audi, all the way to the Chevrolet Cosworth Vega. So there are people out there that can help fix it. And it is dirt simple, so you can learn how to repair it yourself. It is not rocket surgery.

Carbs are like doing accounting with a pencil and paper.
D-Jet is like doing accounting with a mechanical calculator.
Current EFI (megasquirt) is like doing accounting with Microsoft Excel.

The accuracy and efficiency goes up with each new improvement.





Clay
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Superhawk996
post Jul 28 2020, 09:40 AM
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QUOTE(ClayPerrine @ Jul 28 2020, 08:51 AM) *


Carbs are like doing accounting with a pencil and paper.
D-Jet is like doing accounting with a mechanical calculator.
Current EFI (megasquirt) is like doing accounting with Microsoft Excel.

The accuracy and efficiency goes up with each new improvement.

Clay


Well said.

Modern EFI is already well beyond Megasquirt EFI with gasoline direct injection and small turbos producing high power density and high durability out of 2.0L engines that are making 250HP / 275 lb-ft of torque that would be unheard of out of a VW T4.

Love modern powertrains but there still is nothing like the clatter of a vintage air cooled engine, induction, and fan noises for me.
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Posts in this topic
MrPurdy   should I junk my fuel injection for my 1.7 for dual 44idf Webers   Jul 27 2020, 09:00 AM
KELTY360   :wttc: :popcorn:   Jul 27 2020, 09:18 AM
nditiz1   From someone who loves running carbs this is what ...   Jul 27 2020, 09:26 AM
Frankvw   I also have a 1973 1.7 ... and I also come from th...   Jul 27 2020, 09:32 AM
Root_Werks   I would keep the FI if possible.   Jul 27 2020, 10:08 AM
ClayPerrine   :agree: The stock cam in a 914 is not good with ...   Jul 27 2020, 10:18 AM
brant   wrong cam (requires rebuilding the motor) wrong di...   Jul 27 2020, 10:28 AM
914sgofast2   If you go to carbs, you will lose horsepower unles...   Jul 27 2020, 10:29 AM
914Sixer   Just say NO to carbs!   Jul 27 2020, 11:42 AM
windforfun   No. KISS.   Jul 27 2020, 12:00 PM
thelogo   Hello, I recently bought a 1973 Porsche 914 with...   Jul 27 2020, 01:20 PM
JeffBowlsby   Here is my website if you decide to keep the FI. ...   Jul 27 2020, 02:58 PM
porschetub   :agree: with all comments,end of the day by the ti...   Jul 27 2020, 04:04 PM
jdamiano   44s are to big you would run rich no matter how yo...   Jul 27 2020, 04:14 PM
rgolia   Totally agree with all the comments. When I switc...   Jul 27 2020, 04:28 PM
ctc911ctc   I was there once upon a time, I stuck with FI and ...   Jul 27 2020, 04:28 PM
thelogo   it is a stock car with dozens of experts. CTC911...   Jul 27 2020, 08:22 PM
ClayPerrine   it is a stock car with dozens of experts. CTC91...   Jul 28 2020, 06:51 AM
Superhawk996   Carbs are like doing accounting with a pencil an...   Jul 28 2020, 09:40 AM
saigon71   I'm not at all anti-carb...but: Since your st...   Jul 28 2020, 05:55 AM
76-914   Better yet put a Subaru in it. :stir: :D   Jul 28 2020, 07:00 AM
Tdskip   Welcome Mark! Lots of us here in SoCal. Troub...   Jul 28 2020, 07:21 AM
dr914@autoatlanta.com   not in a million years. PLUS 44s are for racing o...   Jul 28 2020, 08:34 AM
Bleyseng   My $.02 worth... I bought my car in 1995 with...   Jul 28 2020, 08:57 AM
Root_Werks   I think there's a component of keeping any old...   Jul 28 2020, 09:43 AM
Ansbacher   Difference between FI and Carbs: When FI breaks y...   Jul 28 2020, 10:22 AM
thelogo   Difference between FI and Carbs: When FI breaks ...   Jul 28 2020, 01:20 PM
ClayPerrine   Difference between FI and Carbs: When FI breaks...   Jul 28 2020, 02:19 PM
ClayPerrine   Difference between FI and Carbs: When FI breaks ...   Jul 28 2020, 02:18 PM
Rav914   I love opinion pieces. I went from a functioning ...   Jul 28 2020, 10:42 AM
Jakester1   I had the same problem with my '71. The 4 whit...   Jul 28 2020, 11:03 AM


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