Switching back to efi from carbs |
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Switching back to efi from carbs |
Jbuggyus |
Mar 22 2017, 01:43 PM
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#1
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Newbie Group: Members Posts: 23 Joined: 20-March 17 From: Whidbey island Washington Member No.: 20,946 Region Association: None |
Hello, i am looking at a nice 74 914 with a 1.8 liter unfortunately it has been converted to carbs and the owner does not have the efi setup as this is how he putchased it years ago. My question is how hard is it to convert back. I assume i just need to find a used efi setup , instal , plug back in, and tune? Is there something else i should know? The purchase price would need ro reflect the amount of work needed or just look fo another car. Thanks
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timothy_nd28 |
Mar 22 2017, 01:46 PM
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#2
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Advanced Member Group: Members Posts: 2,299 Joined: 25-September 07 From: IN Member No.: 8,154 Region Association: Upper MidWest |
Conversion back to Ljet isn't all that difficult, a few hours and a few beers. The real question would be: does this engine have the original FI cam shaft or was it changed to a carb cam?
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Jbuggyus |
Mar 22 2017, 02:21 PM
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#3
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Newbie Group: Members Posts: 23 Joined: 20-March 17 From: Whidbey island Washington Member No.: 20,946 Region Association: None |
Just asked the seller and he thinks the rebuild was to stock specs but does not have the paperwork. What can i expect to pay for a used L jet efi set up?
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timothy_nd28 |
Mar 22 2017, 04:57 PM
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#4
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Advanced Member Group: Members Posts: 2,299 Joined: 25-September 07 From: IN Member No.: 8,154 Region Association: Upper MidWest |
500.00 dollars for a used known working Ljet setup is a fair price.
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jpapatrout |
Mar 22 2017, 05:26 PM
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#5
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Newbie Group: Members Posts: 12 Joined: 7-October 09 From: SoCal - Palm Springs Member No.: 10,903 Region Association: Southwest Region |
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Jbuggyus |
Mar 22 2017, 06:26 PM
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#6
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Newbie Group: Members Posts: 23 Joined: 20-March 17 From: Whidbey island Washington Member No.: 20,946 Region Association: None |
500.00 dollars for a used known working Ljet setup is a fair price. Hey, jbuggyus, i have a 1974 1.8 that i am converting from f.i, to carbs. Contact me if you need my old setup. Thank you, i will contact you if i get this car. Im looking at it on sunday. |
struckn |
Mar 22 2017, 06:38 PM
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#7
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Senior Member Group: Members Posts: 1,069 Joined: 9-November 11 From: South Central York Pennsyvania Member No.: 13,764 Region Association: MidAtlantic Region |
500.00 dollars for a used known working Ljet setup is a fair price. Hey, jbuggyus, i have a 1974 1.8 that i am converting from f.i, to carbs. Contact me if you need my old setup. ------------------------------------------------------------------------------------------------------- You'll need to change the fuel pumps. FI uses a 30 PSI, Carbs use a 3.5 PSI. The Cam Change means pulling the engine and splinting the Case to get the CAM swapped out. Also find out what you will need for ignition timing. The FI uses a CPU, where as the Carb fires using a Distributor and coil for ignition. I'm no expert but these are things you need to figure out. |
JeffBowlsby |
Mar 22 2017, 06:41 PM
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#8
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914 Wiring Harnesses Group: Members Posts: 8,510 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
What a coincidence! L-Jet requires a dizzy and coil too.
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pete000 |
Mar 22 2017, 06:44 PM
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#9
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Senior Member Group: Members Posts: 1,885 Joined: 23-August 10 From: Bradenton Florida Member No.: 12,094 Region Association: South East States |
I like this Fi set up.
Not cheap but very complete. Attached thumbnail(s) |
Mark Henry |
Mar 22 2017, 07:32 PM
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#10
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Also find out what you will need for ignition timing. The FI uses a CPU, where as the Carb fires using a Distributor and coil for ignition. I'm no expert but these are things you need to figure out. Nope! L-jet doesn't need a special dizzy, but D-jet does. It will work with the stock, mallory, etc and even a (yuck) 009 dizzy. But struckn is correct about the pump and it has to have a stock cam. If the case hasn't been opened and it's kind of sucky on power it's likely it still has the stock cam. A known good 914 L-jet is a real nice system for a stock engine, plus in the future you can build a stock 2.0 and still use the L-jet. |
Jbuggyus |
Mar 22 2017, 08:18 PM
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#11
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Newbie Group: Members Posts: 23 Joined: 20-March 17 From: Whidbey island Washington Member No.: 20,946 Region Association: None |
Also find out what you will need for ignition timing. The FI uses a CPU, where as the Carb fires using a Distributor and coil for ignition. I'm no expert but these are things you need to figure out. Nope! L-jet doesn't need a special dizzy, but D-jet does. It will work with the stock, mallory, etc and even a (yuck) 009 dizzy. But struckn is correct about the pump and it has to have a stock cam. If the case hasn't been opened and it's kind of sucky on power it's likely it still has the stock cam. A known good 914 L-jet is a real nice system for a stock engine, plus in the future you can build a stock 2.0 and still use the L-jet. Thank you for all the tips. I have worked on a lot of VWs but not much on the way of EFI. If this car wasnt such a nice rust free car even in the color i wanted, even simi close to me I would probably pass on the car . I know on type 1 engines you can pull the oil pump and the cam number is stamped on it, is it the same on 914 (type IV engine)? |
Mark Henry |
Mar 22 2017, 08:26 PM
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#12
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Also find out what you will need for ignition timing. The FI uses a CPU, where as the Carb fires using a Distributor and coil for ignition. I'm no expert but these are things you need to figure out. Nope! L-jet doesn't need a special dizzy, but D-jet does. It will work with the stock, mallory, etc and even a (yuck) 009 dizzy. But struckn is correct about the pump and it has to have a stock cam. If the case hasn't been opened and it's kind of sucky on power it's likely it still has the stock cam. A known good 914 L-jet is a real nice system for a stock engine, plus in the future you can build a stock 2.0 and still use the L-jet. Thank you for all the tips. I have worked on a lot of VWs but not much on the way of EFI. If this car wasnt such a nice rust free car even in the color i wanted, even simi close to me I would probably pass on the car . I know on type 1 engines you can pull the oil pump and the cam number is stamped on it, is it the same on 914 (type IV engine)? A stock cam won't have numbers, but it will have a rivet on timing gear. Most aftermarket cams will be numbered, but not all of them. I have an aftermarket mystery cam with a brand new gear and perfect lifters, but no clue as to the grind. One day I'll have to spec it out. |
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