 GoWesty throttle bodies back in stock |
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| JamesJ |
 Nov 13 2025, 04:16 PM
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#1
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Member  Group: Members Posts: 249 Joined: 30-April 20 From: Sunnyvale, CA Member No.: 24,202 Region Association: Northern California 
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| GregAmy |
Nov 13 2025, 04:32 PM
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#2
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Advanced Member Group: Members Posts: 2,595 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States
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How do these work on our cars? Will it bolt up to a D-Jet 914 manifold?
If so, is the opening in the plenum large enough to take advantage of it? |
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| jim_hoyland |
Nov 13 2025, 07:18 PM
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#3
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Get that VIN ? Group: Members Posts: 9,948 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California
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I’ve run the Westy throttle body on my 2056 L-Jet for about 5 years.
It was a bolt on; IIRC the TPS had to be modified, can’t remember the issue but it orientation may have been different. |
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| bdstone914 |
Nov 13 2025, 07:52 PM
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#4
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bdstone914 Group: Members Posts: 5,186 Joined: 8-November 03 From: Riverside CA Member No.: 1,319 |
@GregAmy
date='Nov 13 2025, 04:32 PM' post='3232605'] How do these work on our cars? Will it bolt up to a D-Jet 914 manifold? If so, is the opening in the plenum large enough to take advantage of it? [/quote] I think they only fit L jet systems. The website is void of needed useful fitment information. |
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| GregAmy |
Nov 13 2025, 09:39 PM
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#5
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Advanced Member Group: Members Posts: 2,595 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States
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QUOTE(bdstone914 @ Nov 13 2025, 08:52 PM)  I think they only fit L jet systems. The website is void of needed useful fitment information. Hmm. Well, I've often considered switching my Microsquirt conversion to an L-Jet induction...it would be an easy conversion...will it fit on 2L heads? |
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| Literati914 |
Nov 14 2025, 12:24 PM
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#6
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Advanced Member Group: Members Posts: 2,148 Joined: 16-November 06 From: Dallas, TX Member No.: 7,222 Region Association: Southwest Region |
QUOTE(GregAmy @ Nov 13 2025, 09:39 PM) QUOTE(bdstone914 @ Nov 13 2025, 08:52 PM) I think they only fit L jet systems. The website is void of needed useful fitment information. Hmm. Well, I've often considered switching my Microsquirt conversion to an L-Jet induction...it would be an easy conversion...will it fit on 2L heads? (IMG:style_emoticons/default/popcorn[1].gif) |
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| Montreal914 |
Nov 14 2025, 12:38 PM
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#7
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Senior Member Group: Members Posts: 1,961 Joined: 8-August 10 From: Claremont, CA Member No.: 12,023 Region Association: Southern California
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@GregAmy
A while back I had read a lot of useful information on Shoptalkforums on this. If I recall, the 2 liter heads need the 2 liter runners. Then you use the L-Jet plennun with longer flexible interconnecting tubes. Now for the L-Jet plennun, these is also a debate about its volume and this is where bus plenum can potentially be used if I recall. Again I was actively reading about this a few years back. This guy having build a type 3 wagon (Squarch) had a 2.3 type four engine mated to a 901 and the car was equipped wit a 911 rear suspension if I recall. He had tried a bunch of things with L-Jet, 2 liter based engine (heads), megasquirt, others... Cool stuff! (IMG:style_emoticons/default/smash.gif) (IMG:style_emoticons/default/driving.gif) |
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| 914werke |
Nov 14 2025, 02:57 PM
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#8
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"I got blisters on me fingers" Group: Members Posts: 11,467 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest
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| VaccaRabite |
Nov 20 2025, 05:49 AM
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#9
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En Garde! Group: Admin Posts: 13,811 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region
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The GoWesty Buslabs TB is a huge improvement over stock IF you are running your own EFI and not running Djet.
You need to change out the throttle sensor from the 2 position sensor the Vanagons used. You need to modify the arm using the arm off your existing TB. And you need top open up the plenum. I used an exhaust pipe expander and then used a small chasing hammer to tap it back into shape. From there I used a thin smear of RTV instead of trying to find a gasket to fit. On my 2056 using MSII, I was able to open up a whole new row of fueling bins on the top end of my fuel map. Going from 45mm to 52mm is significant, and it may not work with Ljet or Djet. With programmable EFI its not a problem. Zach |
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| Geezer914 |
Nov 20 2025, 12:33 PM
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#10
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Geezer914 Group: Members Posts: 2,129 Joined: 18-March 09 From: Salem, NJ Member No.: 10,179 Region Association: North East States
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I modified a Vanagon 50mm throttle body with an Ljet throttle shaft. I enlarged the intake side of the Ljet plenum to 50mm with a tail pipe expander.
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| TRP |
Nov 21 2025, 05:47 PM
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#11
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Member Group: Members Posts: 127 Joined: 2-September 23 From: Morgan Hill, CA Member No.: 27,559 Region Association: None
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Just ordered one for my 2056 build. I may come back looking for more info when the motor is done. Now I'm off to find a suitable 1.8 core/donor motor.
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| worn |
Nov 21 2025, 06:23 PM
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#12
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Winner of the Utah Twisted Joint Award Group: Members Posts: 3,503 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest
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QUOTE(TRP @ Nov 21 2025, 03:47 PM) Just ordered one for my 2056 build. I may come back looking for more info when the motor is done. Now I'm off to find a suitable 1.8 core/donor motor. Please come back to let us know how it goes. Even if it doesn’t. |
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