 Differences in runners BTW 2.0 and other TIVs, can I use Bus runners on a 914? |
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| 3liter914-6 |
 Dec 20 2005, 05:49 PM
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#1
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Master of Clueless Posts  Group: Benefactors Posts: 310 Joined: 12-October 03 From: State College, PA Member No.: 1,238 Region Association: MidAtlantic Region   |
I'm installing a engine from a fellow 914er in my brother's car this week, and I'm not sure how to proceed with making what I have work. Summary of questions at bottom.
Engine being replaced is an original 2.0 (3 stud) with D-jet hardware (MS'd). Replacement engine is a 2.2 with 4 stud heads. I have manifold gaskets for both style heads, and was planning on using the gaskets as a template to modify and drill the holes for bolting up to the 4 stud heads. I'm not so handy with a drill, so I have a local machinist I'm going to have do the modifications. That's option #1 (I haven't found a reason why this wouldn't work, but if it won't please let me know). Option #2 is to buy a used set of runners. There's a local VW shop (Austin, TX) that has a big yard and storage facility with used TII/IV parts. They're pretty sure they have a set of runners from a FI bus, but I'm not sure if they'll work. Runners are $25 a piece, and a the plenum + TB is another $125. Ideally I'd like to just buy the runners and bolt them up to my 2.0L Plenum and TB, but not being terribly familiar with anything other than the 2.0L setup, I don't know if this will work. If option #1 won't work, and just getting the runners won't either, I would consider getting the whole intake setup. Does anyone know if the whole setup will fit on a 914? Should I try and get a specific displacement (will 1.8/2.0 bus intakes work, and not 1.7) Summary 1. Can a 2.0 intake be drilled to fit on 4 stud heads? 2. Can 4 stud (bus) runners be used with a 2.0 plenum? 3. Can a complete bus intake be installed? If so are there year/displacements that won't work? 4. Anyone within a days shipping of Austin that wants to sell me an actual 4 stud 914 setup. Thanks! Adam |
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| qa1142 |
Dec 20 2005, 05:58 PM
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#2
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Whiplash Group: Members Posts: 1,514 Joined: 1-June 04 From: Lake Zurich, Illinois Member No.: 2,140 |
drill it
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| Cap'n Krusty |
Dec 20 2005, 06:17 PM
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#3
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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 |
I'm pretty sure I've seen it done. The boots (hoses) are the same. The Cap'n
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| SLITS |
Dec 20 2005, 06:45 PM
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#4
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None |
Drill 'em..........
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| SirAndy |
Dec 20 2005, 06:54 PM
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#5
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Resident German Group: Admin Posts: 41,640 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
(IMG:http://www.914world.com/bbs2/html/emoticons/agree.gif) |
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| dlo914 |
Dec 20 2005, 07:01 PM
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#6
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Whatchu' lookin' at?!?! Group: Members Posts: 3,432 Joined: 6-September 04 From: San Gabriel, CA Member No.: 2,697 |
i have a spare set of runners, plenum, and throttle body that i'll let go for half the price OBO they're asking for at the junk. The runners have the 4 bolt pattern off a 1.7L Djet engine.
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| Tom Perso |
Dec 20 2005, 07:03 PM
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#7
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Crazy from the Cold... Group: Members Posts: 647 Joined: 8-August 03 From: Kalamazoo, MI Member No.: 1,003 |
Drill it. The 2.0L Bud plenum is WAAAY different than the 914 2.0L one.
Oh, and good luck. (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif) Tom |
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| dlo914 |
Dec 20 2005, 07:19 PM
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#8
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Whatchu' lookin' at?!?! Group: Members Posts: 3,432 Joined: 6-September 04 From: San Gabriel, CA Member No.: 2,697 |
picture of the runner and plenum:
Attached image(s) 
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| dlo914 |
Dec 20 2005, 07:19 PM
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#9
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Whatchu' lookin' at?!?! Group: Members Posts: 3,432 Joined: 6-September 04 From: San Gabriel, CA Member No.: 2,697 |
bolt pattern:
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| dlo914 |
Dec 20 2005, 07:20 PM
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#10
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Whatchu' lookin' at?!?! Group: Members Posts: 3,432 Joined: 6-September 04 From: San Gabriel, CA Member No.: 2,697 |
the throttle body:
Attached image(s) 
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| SLITS |
Dec 20 2005, 07:21 PM
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#11
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None |
Daniel, the runners on a 1.7 are smaller diameter than the 1.8 or 2.0. They won't mate well to the 2.0 plenum.
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| dlo914 |
Dec 20 2005, 07:22 PM
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#12
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Whatchu' lookin' at?!?! Group: Members Posts: 3,432 Joined: 6-September 04 From: San Gabriel, CA Member No.: 2,697 |
thanks...i would've never known (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) |
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| Tom Perso |
Dec 20 2005, 07:27 PM
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#13
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Crazy from the Cold... Group: Members Posts: 647 Joined: 8-August 03 From: Kalamazoo, MI Member No.: 1,003 |
They won't suit well for a hot 2270 either. But, the offer is a nice one.
I have a set of 1.8L runners sitting hooked up to a 914 2.0L plenum, but it did take some cutting and some tweaking of the runners. The 1.8L runner is the same ID as the 2.0L. Just an idea. Either way works fine. Tom |
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| 3liter914-6 |
Dec 20 2005, 09:56 PM
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#14
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Master of Clueless Posts Group: Benefactors Posts: 310 Joined: 12-October 03 From: State College, PA Member No.: 1,238 Region Association: MidAtlantic Region |
It is indeed. Thank you very much for the offer Daniel. Sounds like my first thought was the best one. I 'll have the runners drilled/slotted tomorrow. On the other hand, we had the 914 flatbedded yesterday to a body shop (a fairly small hell hole), and the body shop apparently has a 914 sitting out back they've got a mechanics lien on that they hinted could be had for short money. Wonder if it's a 1.8 (IMG:http://www.914world.com/bbs2/html/emoticons/idea.gif). |
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| r_towle |
Dec 20 2005, 09:59 PM
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#15
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Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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I have weber carb manifolds that are drilled for both 2.0 and 1.8 heads...they match up on both quite well...
I vote drill them.. Rich |
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| Jake Raby |
Dec 20 2005, 10:04 PM
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#16
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
I have the right pieces... The 2.0 plenum is MUCH bigger than either the 1.7 or 1.8 or even the Bus 2.0. Using the smaller plenum will make for a choppy idle and shitty down low performance- ask me how I know..
Sure, it'll work, but it won't be right and won't be the best it could be with about 75 bucks worth of spare parts... |
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| Tom Perso |
Dec 21 2005, 06:51 AM
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#17
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Crazy from the Cold... Group: Members Posts: 647 Joined: 8-August 03 From: Kalamazoo, MI Member No.: 1,003 |
You're gonna need all the plenum you can get with that motor... (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)
Maybe get froggy and bore out the TB a little bit too. Or, adapt a Volvo 240 TB to it. It fits with a little welding. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) You have to cut the flange off, weld up a new adapter plate and then mount it. Run a new TPS and dink with the throttle cable. (IMG:http://www.qtm.net/~persot/MS/DCP01431.JPG) Just a thought.... (IMG:http://www.914world.com/bbs2/html/emoticons/beer.gif) Tom |
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