 Diesel conversion - transmission options |
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| type11969 |
 Sep 26 2009, 10:43 AM
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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  |
Mulling over a tdi swap into my 914 while I should be working on dynamics HW . . . One big hurdle seems to be the transmission. 914 tranny isn't geared for a diesel and it would be expensive to re-gear it (if even possible). What other options are available? Seems like it would be convenient to use a VAG diesel tranny that was already set up for the tdi engine . . . but most are front engine front wheel drive. Anyone know of any VAG front engine RWD cars using a tdi engine? Old Audi, perhaps? I suppose a diesel Vanagon tranny might work but my guess is the gearing wouldn't be great in that either.
Other options? Linkage I figure I would do with cables. Thanks, Chris |
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| Cap'n Krusty |
Sep 28 2009, 11:23 AM
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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 |
Just a little information about Vanagon trannies in general, and a couple of facts about diesel Vanagon trannies in particular. Vanagon trannies have a REAL problem with the 3-4 gear assembly. They break with irritating regularity. Practically every Vanagon that has been in here over the last 30 years has had at least one tranny replacement, nearly all for the same issue. Now, for the diesel tranny. Since the diesel Vanagons were imported for only 2-3 years (1980/81 to 1983), and the number was limited, where you gonna find one? They couldn't GIVE those things away when they were on the dealer lots.) And since the torque and HP of the original engine was probably half that of the TDI, what makes you think the notoriously weak tranny is gonna hold up under the added strain? BTW, you want to cruise at about 2000-2200 RPM in 5th. That's a 1000+ RPM drop from the stock 914 5th gear.
The Cap'n |
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Posts in this topic
type11969 Diesel conversion - transmission options Sep 26 2009, 10:43 AM
johannes Is this a joke ? Sep 26 2009, 12:30 PM Gary Pretty healthy discussion here: TDI thread. Looks ... Sep 26 2009, 12:46 PM RJMII I'd do it... 200 hp and 300lbs/ft of torque, a... Sep 26 2009, 02:41 PM
rohar
I'd do it... 200 hp and 300lbs/ft of torque, ... Sep 26 2009, 02:53 PM Cap'n Krusty An Audi or Passat diesel tranny would be fine, but... Sep 26 2009, 03:27 PM type11969 Nope, no joke. I've been intrigued by the tdi ... Sep 28 2009, 09:47 AM Vacca Rabite Why not take the 2056 out of the bug and put the T... Sep 28 2009, 10:16 AM type11969 Really the tdi should go in the bus but I didn... Sep 28 2009, 10:22 AM Dr Evil When you say regearing is expensive, had you consi... Sep 28 2009, 10:32 AM type11969 Hmm, no I had not. All good info. I'll have to... Sep 28 2009, 10:39 AM Porcharu Audi Transmission, the older 4 cylinder versions w... Sep 28 2009, 01:34 PM Cap'n Krusty And where do you propose to procure a 4K gearbox w... Sep 28 2009, 02:54 PM pktzygt I looked into a diesel swap for my pathfinder. Sou... Sep 28 2009, 03:37 PM okieflyr I would agree with going with an earlier Passat tr... Sep 28 2009, 06:01 PM aircooledtechguy Ask the guys at Go Westy about this 5-speed box. ... Sep 28 2009, 07:00 PM Cap'n Krusty
Ask the guys at Go Westy about this 5-speed box. ... Sep 28 2009, 07:08 PM SirAndy
Seems like it would be convenient to use a VAG di... Sep 28 2009, 07:22 PM type11969 Thanks for all the info guys, keep it coming.
Whe... Sep 28 2009, 09:04 PM bfrymire
Thanks for all the info guys, keep it coming.
Wh... Sep 28 2009, 09:25 PM type11969 Yeah, its the "real hurdle" that I am tr... Sep 28 2009, 09:34 PM Vacca Rabite I am so waiting for that engine to be released sta... Sep 29 2009, 12:54 PM type11969 Some good intro info over on the tdiforums on the ... Sep 29 2009, 06:42 PM type11969 Potential tranny candidate, seem to be plenty out ... Sep 29 2009, 09:36 PM type11969 Oh yeah, doc, when you have a minute, how close ca... Sep 29 2009, 10:34 PM Dr Evil There is a taller diff in certain years of sportom... Sep 29 2009, 10:43 PM Dr Evil Actually, I have a sproto diff and pinion that I c... Sep 29 2009, 10:48 PM Dr Evil R&P in a sporto is 7:27 vs 7:31 in stock 901. Sep 29 2009, 10:52 PM type11969 Hmm, interesting, that would result in a taller se... Sep 30 2009, 09:10 AM rohar I don't think I'd let tranny mounts influe... Sep 30 2009, 10:18 AM |
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