 914 Diesel build.... |
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| PatrickB |
 Jul 4 2018, 04:30 AM
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#1
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Member  Group: Members Posts: 249 Joined: 26-March 17 From: sw ontario Member No.: 20,960 Region Association: Canada  |
Here goes nothin....
Been planning this for a while, but it was supposed to be a winter project. Wasn't quite ready yet. KEP adaptor parts have been sitting here. Timeline moved up because of a failure. Had a chirp that turned into a BAD miss, valve seat issue on one cylinder.  Had a fresh 1.9 AAZ diesel sitting in my storage trailer that had never been fired. (honed, rings, bearings, injection pump reseal). "new" engine was destined for my daily beater . Same engine in the beater is getting a little tired, I've put at least 350,000 km on it and the compression is getting down. Still runs okay though. Swapped the "new" engine into the beater. 16 year old son is learning...  |
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| Porschef |
Jul 17 2018, 01:47 PM
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#2
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How you doin' Group: Members Posts: 2,177 Joined: 7-September 10 From: LawnGuyland Member No.: 12,152 Region Association: North East States 
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I don't know the gearing letters, but maybe a nice tall 5th in the 901 is the way to go for now.
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| Dave_Darling |
Jul 17 2018, 10:29 PM
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#3
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914 Idiot Group: Members Posts: 15,060 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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QUOTE(Porschef @ Jul 17 2018, 12:47 PM)  I don't know the gearing letters, but maybe a nice tall 5th in the 901 is the way to go for now. The stock 914 5th gear is the tallest original gear made for the 901-based gearboxes that I know of. To go taller, you "flip" a gear set--that is, you switch which of the two shafts the gears ride on. There's one gear that goes on the main shaft, and one that goes on the pinion shaft; you move the first gear to the pinion shaft and the second gear to the main shaft. Usually it's a 3rd gear that gets flipped. https://members.rennlist.com/chuxter/901&915ratios.htm --DD |
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| Dr Evil |
Jul 18 2018, 09:33 AM
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#4
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Send me your transmission! Group: Members Posts: 23,032 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region
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QUOTE(Dave_Darling @ Jul 18 2018, 12:29 AM) QUOTE(Porschef @ Jul 17 2018, 12:47 PM) I don't know the gearing letters, but maybe a nice tall 5th in the 901 is the way to go for now. The stock 914 5th gear is the tallest original gear made for the 901-based gearboxes that I know of. To go taller, you "flip" a gear set--that is, you switch which of the two shafts the gears ride on. There's one gear that goes on the main shaft, and one that goes on the pinion shaft; you move the first gear to the pinion shaft and the second gear to the main shaft. Usually it's a 3rd gear that gets flipped. https://members.rennlist.com/chuxter/901&915ratios.htm --DD Because of the base circle on the gear, you can only go so small on the driven gear in 5th. ZD is stock for 914 5th gear and is the tallest stock gear. After that, a flipped H gear set (usually a second gear) is the only other alternative. This is a conversion that has been done hundreds of times without issue. The torque of a diesel wont be an issue in 5th as you are already moving and not trying to break the inertia of being stagnant, or even slow. |
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| PatrickB |
Jul 19 2018, 03:25 AM
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#5
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Member Group: Members Posts: 249 Joined: 26-March 17 From: sw ontario Member No.: 20,960 Region Association: Canada |
QUOTE(Dr Evil @ Jul 18 2018, 11:33 AM) QUOTE(Dave_Darling @ Jul 18 2018, 12:29 AM) QUOTE(Porschef @ Jul 17 2018, 12:47 PM) I don't know the gearing letters, but maybe a nice tall 5th in the 901 is the way to go for now. The stock 914 5th gear is the tallest original gear made for the 901-based gearboxes that I know of. To go taller, you "flip" a gear set--that is, you switch which of the two shafts the gears ride on. There's one gear that goes on the main shaft, and one that goes on the pinion shaft; you move the first gear to the pinion shaft and the second gear to the main shaft. Usually it's a 3rd gear that gets flipped. https://members.rennlist.com/chuxter/901&915ratios.htm Because of the base circle on the gear, you can only go so small on the driven gear in 5th. ZD is stock for 914 5th gear and is the tallest stock gear. After that, a flipped H gear set (usually a second gear) is the only other alternative. This is a conversion that has been done hundreds of times without issue. The torque of a diesel wont be an issue in 5th as you are already moving and not trying to break the inertia of being stagnant, or even slow. --DD |
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| 914forme |
Jul 19 2018, 12:56 PM
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#6
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Times a wastin', get wrenchin'! Group: Members Posts: 3,896 Joined: 24-July 04 From: Dayton, Ohio Member No.: 2,388 Region Association: None
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QUOTE(PatrickB @ Jul 19 2018, 05:25 AM) Can you give me a ballpark of what the revs will be at say 60 mph? That's highway cruising gear, not pound on it gear. Yes I can, depends on your trie size as it determines you overall ratio. Stock R&P Tires are 225/55-16 ZD 2500 RPM HA 2200 RPM H 2050 RPM All approximates the graphs have not real great resolution to give the RPM down to the 1 RPM increments. |
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Posts in this topic
PatrickB 914 Diesel build.... Jul 4 2018, 04:30 AM
PatrickB Plan is to build the car with the more tired engin... Jul 4 2018, 04:38 AM PatrickB BTW I may have a complete 2L engine for sale at so... Jul 4 2018, 04:42 AM mb911 That will be very cool.. Jul 4 2018, 05:42 AM 914forme As a diesel owner :headbanger:
A couple of peop... Jul 4 2018, 07:22 AM
PatrickB
As a diesel owner :headbanger:
A couple of peo... Jul 4 2018, 07:37 AM Porschef Extremely cool. Having had an ALH Golf for some ti... Jul 4 2018, 07:43 AM 914forme The 914 converted with an ALH did about 60+ MPG, i... Jul 4 2018, 08:03 AM Porschef
Should have keep that engine, found a FWD Passa... Jul 4 2018, 08:17 AM PatrickB Car was previously owned by a body shop owner, onl... Jul 4 2018, 08:40 AM poorsche914 Subscribed :)
I have wanted to do a TDI conversi... Jul 4 2018, 08:52 AM Porschef
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Wow, never seen that. Kinda like 914 meets... Jul 4 2018, 09:07 AM PatrickB
Good eye. Ford probe bumpers grafted on, then bo... Jul 4 2018, 09:16 AM Porschef Which now really makes it a perfect candidate for ... Jul 4 2018, 09:35 AM PatrickB Anyone know if this one ever got finished? PM had ... Jul 4 2018, 12:02 PM 914-d One of my project is a 914 diesel...here are a few... Jul 4 2018, 10:20 AM JRust Hey that body work was done tastefully. All the qu... Jul 4 2018, 10:22 AM 914forme Yes I think it got done, have not talked with him ... Jul 4 2018, 12:29 PM Dave_Darling I'm wondering about the gearbox... The gearin... Jul 4 2018, 02:03 PM porschetub
I'm wondering about the gearbox... The geari... Jul 19 2018, 01:36 AM PatrickB
I'm wondering about the gearbox... The gear... Jul 19 2018, 03:30 AM porschetub
[quote name='porschetub' post='2630615' date='Jul... Aug 25 2018, 10:30 PM PatrickB
[quote name='porschetub' post='2630615' date='Ju... Aug 26 2018, 03:55 AM Chris H. Very unique bodywork. Looks well done. Wonder how... Jul 4 2018, 03:21 PM 914-d
I'm wondering about the gearbox... The geari... Jul 4 2018, 03:22 PM 914forme What you need for these is an 6 speed out of a Aud... Jul 4 2018, 03:45 PM 914-d Might use that trans on the next one. I have a gu... Jul 4 2018, 04:04 PM 914forme I do the same thing but use a guy in England. Jul 4 2018, 04:47 PM PatrickB Using the 901 trans. The engine I'm using is ... Jul 5 2018, 04:34 AM Dave_Darling Maybe a taller ring and pinion and bring all the g... Jul 17 2018, 12:35 PM PatrickB
Maybe a taller ring and pinion and bring all the ... Jul 17 2018, 03:43 PM 914forme I used to Auto-x an A3 Jetta, loved that little ca... Jul 5 2018, 08:49 AM PatrickB
I used to Auto-x an A3 Jetta, loved that little c... Jul 5 2018, 10:43 AM PatrickB How critical is it to have the crankshaft of the e... Jul 17 2018, 03:58 AM 914forme To answer your question if it was just the engine,... Jul 17 2018, 06:34 AM PatrickB
To answer your question if it was just the engine... Jul 17 2018, 03:35 PM Dr Evil Very cool! Always wanted to see something like... Jul 17 2018, 08:17 AM PatrickB
Very cool! Always wanted to see something lik... Jul 17 2018, 03:38 PM Chris H. Yes the Vanagon diesel oil pan allows you to turn ... Jul 17 2018, 12:21 PM 914forme To add off Dave's ideas, the Speedo fix is muc... Jul 17 2018, 01:03 PM PatrickB
I don't know the gearing letters, but maybe a... Jul 17 2018, 03:44 PM PatrickB
I don't know the gearing letters, but maybe ... Jul 18 2018, 03:35 AM PatrickB Did a little more cutting.... can't get the en... Jul 17 2018, 06:37 PM PatrickB need to clean up the cuts a little more, do some w... Jul 17 2018, 06:50 PM Porschef Keep on keepin' on... :beer2: :beer2: Jul 17 2018, 08:02 PM Porschef Ahhh, that explains it. Cool. :beer2: Jul 18 2018, 10:43 AM Dr Evil I thought the little diesels like to rev high, tho... Jul 19 2018, 01:26 PM PatrickB
I thought the little diesels like to rev high, th... Jul 19 2018, 02:30 PM Dr Evil
I thought the little diesels like to rev high, t... Jul 20 2018, 12:18 PM PatrickB
[quote name='PatrickB' post='2630777' date='Jul 1... Jul 20 2018, 12:47 PM PatrickB double post... Jul 20 2018, 12:52 PM Chris914n6 re:position...
RH has trans blocks that move the ... Jul 20 2018, 02:52 PM Porschef Is there a specific year group of the trannys that... Jul 26 2018, 04:25 AM PatrickB Engine is mounted, working on trying to put a rad ... Aug 6 2018, 01:31 PM PatrickB Open to thoughts from those that have done other s... Aug 8 2018, 04:34 AM 914forme What wall thickness is the crossbar?
What I don... Aug 8 2018, 06:51 AM PatrickB
What wall thickness is the crossbar?
What I don... Aug 8 2018, 10:36 AM PatrickB Not the best picture but shows the construction of... Aug 8 2018, 11:03 AM Chris914n6 You need a drivers side engine mount. No doubt abo... Aug 8 2018, 03:25 PM PatrickB
You need a drivers side engine mount. No doubt ab... Aug 9 2018, 05:22 AM stownsen914 Agreed with reinforcing your crossbar where the no... Aug 9 2018, 07:29 AM PatrickB
Agreed with reinforcing your crossbar where the n... Aug 9 2018, 09:45 AM Rob-O subscribed! Aug 20 2018, 10:47 AM PatrickB
subscribed!
You were right, at least the ma... Aug 25 2018, 05:12 PM PatrickB Honda rad installed. Lower rad hose from mk 2 jett... Aug 20 2018, 01:59 PM 2mAn I had visions of a watercooled VW motor install...... Aug 21 2018, 10:59 AM 914forme :rotfl: Your not going with a trash can stack poki... Aug 26 2018, 08:25 AM PatrickB
Rad in, custom water outlet from back of head fo... Sep 2 2018, 08:11 AM tomeric914
The exhaust is straight up just until I get to t... Sep 2 2018, 01:38 PM 914forme
The exhaust is straight up just until I get to ... Sep 2 2018, 03:41 PM PatrickB
[quote name='tomeric914' post='2644848' date='Sep... Sep 2 2018, 06:54 PM Porschef No shit... Well would you look at THAT!!
... Sep 2 2018, 08:56 AM Rob-O Nice! Sep 2 2018, 11:39 AM PatrickB
Nice!
Lots to do yet.... Need some fuel line... Sep 2 2018, 12:37 PM Rob-O
[quote name='Rob-O' post='2644820' date='Sep... Sep 2 2018, 03:20 PM Porschef Really impressed with the conversion, it seems to ... Sep 3 2018, 06:07 AM PatrickB
Really impressed with the conversion, it seems to... Sep 3 2018, 05:16 PM PatrickB Road block....
Hooking fuel lines. No return line ... Sep 4 2018, 06:52 PM PatrickB Had it fired up today but the injection pump ran o... Sep 8 2018, 02:56 PM Chris H. Terrycable will make you one. I had one made a fo... Sep 8 2018, 03:58 PM PatrickB
Terrycable will make you one. I had one made a f... Sep 8 2018, 04:17 PM PatrickB IT'S ALIVE!!
https://youtu.be/6BwvBVN... Sep 9 2018, 06:00 PM Rob-O Cool...but we need something longer than six secon... Sep 9 2018, 06:18 PM PatrickB
Cool...but we need something longer than six seco... Sep 9 2018, 06:34 PM 914forme I say rock the stack, just except it, and move on.... Sep 9 2018, 07:16 PM Dave_Darling For the throttle, perhaps you could take inspirati... Sep 9 2018, 07:42 PM PatrickB
For the throttle, perhaps you could take inspirat... Sep 10 2018, 04:45 PM PatrickB Too much coal too.... Engine would already do that... Sep 10 2018, 03:21 AM PatrickB Had it out for a drive for 20 minutes or so, got a... Sep 11 2018, 06:37 PM PatrickB First time out at the autocross with the diesel. A... Sep 15 2018, 04:06 PM Dr Evil
First time out at the autocross with the diesel. ... Sep 18 2018, 01:42 PM PatrickB
First time out at the autocross with the diesel.... Sep 18 2018, 04:30 PM 914forme lots of Civic Rads that are of "better" ... Sep 18 2018, 06:57 PM PatrickB Got the tach working tonight with the help of an a... Sep 19 2018, 06:40 PM PatrickB Should update this thread. Got the throttle cable,... Jul 6 2019, 05:14 PM |
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