 1.8L TDi Engine Conversion, Anyone done this? |
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| rebelmdot |
 Sep 11 2008, 11:53 AM
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#1
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914ini  Group: Members Posts: 224 Joined: 25-January 08 From: Tennessee Member No.: 8,625 Region Association: South East States  |
Good morning. After looking in the search function and not finding what I was looking for. I was wondering if anyone had done a 1.8L TDi conversion. My wife's 2002 VW Bug TDi, gets 45-53mpg and is a punchy little engine. Not perfect for a track, but I have 3 914's and thinking about putting this type engine in the one that I would drive daily. Any and all thoughts or suggestions welcome.
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| Cap'n Krusty |
Sep 11 2008, 12:28 PM
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#2
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
Best way would be to use a B5 Passat TDI tranny from Europe, giving you the appropriate gearing, as the 914 gearing is pretty low, relatively speaking. (Maybe you could find a higher ring and pinion for a 901?) Also, you should look for a TDI engine from before they used the immobilizer system, because the later engines require the instrument cluster to be transplanted, a real PITA.
The Cap'n |
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| type47 |
Sep 11 2008, 02:00 PM
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#3
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Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
maybe if i refer you to a conversion by a member here, it will help and give you some ideas about your project. okiflyer (the member) has installed a VW 1.8 turbo
(so who said you can't turbo a 914 (IMG:style_emoticons/default/biggrin.gif) ) mated up to a cable shift boxster transmission. the car is absolutely awesome in what had to be done and i think is the epitome of the craft of engineering and mechanics. i don't know how much difference (well, besides diesel and gas) but i would think his project is a great reference to yours. a TDI sounds incredibly interesting re the Audi racing diesel (the one the Porsche RS Spyder races with) |
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| type11969 |
Sep 11 2008, 02:25 PM
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#4
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Senior Member Group: Members Posts: 1,231 Joined: 2-December 03 From: Collingswood, NJ Member No.: 1,410 Region Association: North East States |
I think someone posted not too long ago about using a 1.9 TD (not tdi) engine in their 914, they were mid conversion. Here it is:
http://www.914world.com/bbs2/index.php?act...f=2&t=84047 Think the TD would be much easier to do, fewer complications, cheaper, but at the expense of power and probably MPG. |
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| rebelmdot |
Sep 12 2008, 11:35 AM
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#5
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914ini Group: Members Posts: 224 Joined: 25-January 08 From: Tennessee Member No.: 8,625 Region Association: South East States |
Thank you gentlemen
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| LarryR |
Sep 13 2008, 02:53 PM
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#6
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Senior Member Group: Members Posts: 929 Joined: 15-March 07 From: E. Bay Area, N. California Member No.: 7,604 |
QUOTE(type11969 @ Sep 11 2008, 01:25 PM)  I think someone posted not too long ago about using a 1.9 TD (not tdi) engine in their 914, they were mid conversion. Here it is: http://www.914world.com/bbs2/index.php?act...f=2&t=84047 Think the TD would be much easier to do, fewer complications, cheaper, but at the expense of power and probably MPG. I am getting 41-42 mpg with my 2009 jetta 2.0 tdi. It is pretty quick too. I think the jetta weighs in at a hefty 3500 pounds so 1500 pounds lighter would probably get high 50's low 60's mpg. |
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| swl |
Sep 13 2008, 04:19 PM
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#7
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Senior Member Group: Members Posts: 1,409 Joined: 7-August 05 From: Kingston,On,Canada Member No.: 4,550 Region Association: Canada |
Probably pretty close. I can hit 60mpg pushing 1750lbs with 900cc in a 3 cylinder tdi. The teener has a lot smaller frontal cross section than my car so that might make up for the bigger engine and slightly more weight.
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