Finally it is time to start my own topic overhere. I'm preparing a MegaJolt setup for my Citroën AX GT. Originally it has a 1.4 engine with monopoint injection, but 1.5 year ago, I have converted it to a 2-stage carburator setup. I have prepared a cilinder head for this conversion and the preps included flowing the in- and outlet, regrinding the valves, insert new valve seals and inserting a Kentcams 284 degrees camshaft. Also, for performance improvement, a spaghetti manifold has been placed and bigger nozzles in the carb and a K&N airfilter.

More then a year ago, I have bought my Megajolt computer and have assembled it. A few weeks ago I have prepared a triggerwheel and now I have to find back the sensor so I can place that also. Last week, my MSD parts have arrived. So for now I'm preparing all parts, the cable harnes and an initial ignition mapping. For my initial mapping I will use the data of the manufacturer.

Now first some pictures, because I don't know any forum where they don't like pics

My car


Testing


Triggerwheel


MSD Stuff

Nice, looking good. Is that a future driver in the first picture?

O yeah, absolutely. He has it's own tools, workbench and is helping me already

Nice tool bench! Even comes with a set of calipers!

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Have you got any pictures of the carbs that you are going to be using and manifolds etc???

your rite about the pictures mind, never have enough.

I'm using a Solex 32/34 Z2 carb. This is used on the first series of AX GT and was good for 85 HP. In the Netherlands, they introduced new regulations against polution so they replaced the carb very soon for monopoint injection and delivered 75 HP. So I converted mine back to a first series, with the carb. I took an original engine head of the first series, flowed the inlet and exhaust ports, inserted an Kentcams camshaft and bigger nozzles in the carb (delivered in the K&N kit) Maybe I am going to use a slighly bigger carb when I can find it. In the time, the Citroën BX 1.9 has been deliverd with a Solex 34/34. So if I can find one, I might going to experiment with it.

Here are some pictures.

Carb





Inlet manifold



Built-in, including the K&N Filter



Sideview carb

Brings back fond memories of mine the power jump you get on the axgt just by fitting the k&n filter is outstanding was very noticeable once the second choke opened. mine was a black one on a 1990 MY so would have been the early type you were refering to even had the 3 stud alloys too.

After a long time I finally found some time to work on the installation of the triggerwheel and the sensor. Laying under the car I have placed the triggerwheel on the pulley that drives the alternator. This pulley is directly placed on the crankshaft.





A movie that shows how smoothly it runs

http://www.youtube.com/watch?v=X5hIHkwPuXU

I also have build a bracket that places the sensor close to the triggerwheel. Why do those Citroen AX have so less space. Driveshaft is getting close to the wires and it just fits with the cooling hose. But, it is on it's place.

The bracket






Bracket bolted on to the engine








Movie with running engine to see if it fits correctly

http://www.youtube.com/watch?v=bWJRWNjx8ZQ

Now it's time to put a new and longer cable on the connection and wire it all up. Hopefully I can find some more time in the next few weeks to finish the installation.

Yeaahaaaaaahhhhh!!! It is running!!!

The conversion to Megajolt has succeeded. Now I have to assemble it al in the right way. I also have to check with an ignition light if the Megajolt is controlling it correctly or if the Edi module is running in limb-home mode. Ofcourse I have to create a correct mapping. But now it is time to have a cold drink.

Ofcourse some proof:

http://www.youtube.com/watch?v=WrVUUxPM6k8

Today I have been to a specialist to fine tune my setup on a rolling road. First run delivered 94,5 hp and 126,2 nm. Then I noticed that it was using the wrong mapping so switched to the correct one. Time for a new run, results: 98,5 hp and 132,6 nm The specialist thought that it was already tuned enough and he advised to leave it this way I'm happy with the values and the car is running great.



And 2 videos

http://www.youtube.com/watch?v=uGeYCIdjT8o

http://www.youtube.com/watch?v=vwK3Fq4H1tI

congrats on the tune.

i dig the shot of the toddler looking into the exhaust from your original post by-the-way.

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