DUCATI TBI on 2180

Fuel Supply & Ignition Systems
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madman4
Posts: 52
Joined: Wed Jun 12, 2002 12:01 am

DUCATI TBI on 2180

Post by madman4 »

New post to explain you how I will establish the MS on my engine.

THE CAR:
66 Beetle, full steel (less Aronson decklid)


THE ENGINE:
The basis engine is a 2180, Fk8, S/E head, 48IDA.
Pulling good 162hp and best ET on 1/4mile is 12.806@167 (No glue one French strip).


I will use my V3.0 MS2 which is currently assembled on a 1600, equipped with all the hardware of a EFI Mexican ACD flat4 engine.

For my race engine I sought everywhere thottles with IDA pattern without any result.

I thus sought in many the throttle which equips the motor bikes nowadays.
Still I ran up has a wall…. Impossible to find bodies with 46mm + butterfly.

My choice it is related to the throttle bodies of 996 Ducati which have the characteristic to have 2 injectors per body.
A very good choice since after test it proves that the injectors make 270cc EACH!!!

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But these bodies do not have that advantages, indeed, those are, of origin, to actuate by linkage. But their provisions on the large twin-cylinder is not appropriate at all for the VW engine compartment .

It has was necessary to me to find a solution.
I separated the bodies from their fixings and tried to place them on the IDA manifold.
While directing them not in line, I can place it but now it is the traditional linkage which is impossible to install.

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I plane to use a throtle cable which will not be very easy has to develop but….

To help me to find a solution in the fixing of the bodies I reproduced those using a software of 3D and I drew flange single rather than a flange for 2 bodies.

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The parts are being watercutted.

I would keep you informed of advanced of this assembly.
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madman4
Posts: 52
Joined: Wed Jun 12, 2002 12:01 am

Post by madman4 »

Cut in one piece, the "base" of the TBI

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After cutting and adjustement

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On the 2 pictures above you can see the height of TBI Vs IDA.
You don't need to change the manifold if you plane to raise the trans and go on EFI with this body.

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This is (at x degree) how the body will be inclined

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User avatar
bj
Posts: 1156
Joined: Sat Feb 08, 2003 12:01 am

Post by bj »

very nice work. hope it all works out for you. let us know how you do the linkage?

bj
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MarioVelotta
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Joined: Wed Mar 12, 2003 12:01 am

Post by MarioVelotta »

Nice drawings :D I hope to be that good at 3D someday.... Goos luck with the fitting.
The Dub Shop
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1600 ITB NA - 18sec
1600 Supercharged - 13psi - 15.40 @ 84.66mph
1600 Turbo - 185hp 250tq!! Going for 200
2276 Turbo - 15psi - 11.537 @ 115.74mph
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madman4
Posts: 52
Joined: Wed Jun 12, 2002 12:01 am

Post by madman4 »

@bj :

I plane to make some cable linkage.
Due to big TB I can't align the shaft (body interference) so ....

4 cable for 4 body ... not the easiest way but ... 540cc potential :twisted:



@Mario :

Just try the software and you're addict ....
More difficult to take measurement than put your finger on the keyboard !
If you see how the part was build, you can draw it.
But 3D without CNC ......
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bj
Posts: 1156
Joined: Sat Feb 08, 2003 12:01 am

Post by bj »

very cool.

it will be interesting to see what you do for the linkage.

keep up the good work.

bj
hoghead
Posts: 48
Joined: Wed Jun 21, 2006 3:57 am

Re: DUCATI TBI on 2180

Post by hoghead »

Any update on this as I am trying to figure out a linkage for bike TB
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madman4
Posts: 52
Joined: Wed Jun 12, 2002 12:01 am

Re: DUCATI TBI on 2180

Post by madman4 »

No sorry, I bought an old house and eats me all money and time I have...

One day may be ....

The plan was to use dual cable from mountain bike
http://store.btwin.com/cables-et-gaines ... 43622.html

Which have adjusters on all ends.
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