flak monkey
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| posted on 29/11/08 at 02:39 PM |
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Injection conversion progress (pics!)
Been hard at work today.
Finished making the throttle body adaptors which bolt directly to the Weber intake manifold. This meant I could keep the existing manifold, and not
sheel out for a fabricated one.
 
TB Adaptor
These were then fitted using the original Weber misab plates and thackery washers. This wasnt really necessary, but it saved me making my own
gaskets!
 
Fitted adaptors
The throttle bodies were respaced to suit the original carb spacing (90mm centres on each pair and 105mm between the centre 2) and then coupled to the
adpators using 45mm silicone hose. Clamped together with the exhaust style clamps.
 
Fitted TB's
I am pretty pleased with the result so far. Just need to put the fuel pipes in place, and make the fuel rail. (Something for tomorrow!)
David
Sera
http://www.motosera.com
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COREdevelopments
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| posted on 29/11/08 at 02:45 PM |
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hey nice work david. i too want to convert from carbs to t/bs. i have exactly sam t/bs and manifold too! did you make the adapters yourself?
rob
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speedyxjs
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| posted on 29/11/08 at 02:51 PM |
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How long can i resist the temptation to drop a V8 in?
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tomgregory2000
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| posted on 29/11/08 at 03:08 PM |
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they look amazing, good work
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big_wasa
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| posted on 29/11/08 at 03:15 PM |
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David thats spooky.
Ive picked up a bargain set of gixer 750 Tb's and have just spent hours looking for some dcoe adapters.
I dont think my lathe will do it 
yours is looking very good btw
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flak monkey
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| posted on 29/11/08 at 03:17 PM |
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quote:
Originally posted by COREdevelopments
hey nice work david. i too want to convert from carbs to t/bs. i have exactly sam t/bs and manifold too! did you make the adapters yourself?
rob
Hi Rob,
Yes made the adaptors myself. Turned from 100mm aluminium bar, then the profiles were cut with some elbow grease using a hacksaw and file. The bore
tapers to match the weber manifold too, you cant see that too clearly in the pics.
I will post the drawing for the adaptors up on here.
Thanks for the comments guys 
David
Sera
http://www.motosera.com
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big_wasa
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| posted on 29/11/08 at 03:21 PM |
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would it be this one ?
 
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big_wasa
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| posted on 29/11/08 at 03:26 PM |
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flange
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BenB
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| posted on 29/11/08 at 03:26 PM |
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Quality work  Looking very good!!!!
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flak monkey
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| posted on 29/11/08 at 03:28 PM |
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quote:
Originally posted by big_wasa
would it be this one ?
Yeah basically the same as those
I have a proper engineering drawing I did on my PC at work, I'll dig it out on monday morning.
David
Sera
http://www.motosera.com
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big_wasa
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| posted on 29/11/08 at 03:40 PM |
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Where did you get your barstock David ?
A quick look on the net adds upto £45 ish for 200mm of the stuff.
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stevebubs
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| posted on 29/11/08 at 04:57 PM |
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If you've got 750 bodies, the standard head mounting flanges from the bike will fit directly onto the weber manifold...
 
GSXR750 TBs On Zetec Pic 5
Only trouble is they're £25-35 EACH new!!
I made sure my bodies came with them...
[Edited on 29/11/08 by stevebubs]
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02GF74
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| posted on 29/11/08 at 06:20 PM |
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good effort - the adapters are machined from one or to pieces of aluminium?
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flak monkey
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| posted on 30/11/08 at 10:59 AM |
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Adaptors made from 100mm alu bar. All one piece.
I happened to have some laying about at work, so didnt cost me anything 
David
Sera
http://www.motosera.com
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Jenko
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| posted on 2/12/08 at 05:16 PM |
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Just FYI, I found the amount of throttle body to attach the hose to...too small....I just did not trust it, I ended up making some brackets to hold
the TB's on (as well as the rubber hose).....
The last thing you want is for those to come off while driving!!!.
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flak monkey
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| posted on 3/12/08 at 07:49 AM |
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Thanks for that tip Jenko, I might well do something similar! Cracking idea.
They do seem to be well held by the clamps (a good hard pull didnt move them anywhere) but better safe than sorry and all that
Sera
http://www.motosera.com
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flak monkey
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| posted on 3/12/08 at 07:54 AM |
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Throttle body adaptor drawing here:
CLICKY
Sera
http://www.motosera.com
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