Copyright: J.HUBERT

 ABARTH - AUTOBLEU Inlet Manifold

Made in France by the Autobleu Company, the ABARTH inlet manifold for 203 uses (like besides all the other adaptations) the side opposed to the exhaust for its fixing. This position, more logical and more rational, was also adapted by Peugeot for the 403.
According to a personilized technique of manufacture, Autobleu realized the ABARTH inlet manifold of gauged steel tubes, welded to a planar steel plate. This manufacture guarantees a perfect solidity, as well as a correction and a rigorous polish of the inlet tubes.
In addition, its design and the genious placement of the "balancing-ducts" , intended to balance the value of depression in the two principal inlet tubes of the pipe, authorize to preserve the original oil filter in his normal location and allows the access and the easy disassembling of this one exactly like before.

The Abarth-Autobleu steel - inlet manifold  with auto-heating

CThe inlet manifold from  ABARTH presents the characteristic of an automatic heating by conductibility due to the mass of the mounting plate at the cylinder head. This position avoids the system of water circulation around the pipe.
An excellent filling of the engine with high rpm's was obtained by the use of two carburettors, while the homogeneity of the mixture is obtained by the shape and dimensions of the channels of balancing and the pipes themselves which thus compensate for the assymetries of the currents in the admission section.

The used carburettors where 2 Solex 32 PBIC, which makes it possible to preserve the carburettor which equipped already the car and to associate a second identical carburettor there.

The adjustments of these two carburettors will then be modified as follows:

By the only assembly of its pipe, AUTOBLEU ensured to pass from 120Km/h for a car of origin to 132 Km/h for a car thus equipped.
In the same way, at the same speed, the consumption was slightly lower.

 NARDI inlet manifold.

Well-known in the whole world for its qualities of "tuner", Nardi saw on his test benches in Turin most of the engines manufactured in the whole world. Many successes in competition came besides to reward this impassioned beautiful mechanics which works the curves of power scientifically.
After the "tuning" of much other engines, its inlet manifold for the 203 Peugeot is studied, as well as the three adjustments which can be applied to the carburettors which come to be fixed at it.
These carburettors are 2 Solex 32 PBIC which have as advantage (as on the Abarth-Autobleu manifold) to purchase only one of these bodies, the second being that employed previously.

The three adjustments are: " standard ", " sport ", and " performances ".

The reheating of the collector (out of cast light alloy) is carried out by means of a water circulation taken on the hose connections.

Though the assembly of this pipe does not present major difficulties, the manufacturer gives however some rules to observe :
Dismount the closing plate of the admission (on the left-hand side of the cylinder head). Dismount the oil filter with its support. Dismount the ignition distributer.Present the Nardi pipe instead of the admission closing plate, without the seals. Adjust the separators until the Nardi pipe can fit perfectly on the cylinder head.
This operation is required by the differences of foundry. Mount the rubber joints on the separators. Put the joint between the Nardi pipe and the cylinder head and  proceed to the installation. The effort required by this operation is enough important, because the depression of the separators of the pipe in the cylinder head causes the crushing of the rubber seals, ensuring a perfect sealing.
Set up the water pipes while being used the special connections to connect on the upper hose connection for the front water connection, the lower hose connection for the back water connection. Install the two carburettors provided with their flexible controls, to regulate synchronism. Control first that the second carburettor is the same type as the carburettor of origin.
Assemble and fix the support of accelerator provided by making sure that it is laid out in the axis of the carburettors. Proceed to the installation of the links of accelerators by shortening them. Move the pull knob of choke of origin by boring another hole and connect it on the last carburettor. Block the lever of the choke of the second carburettor so that it does not move on the way. Connect the provided gasoline drains. If the carburettors would not be provided with screwed connections,  replace those by a flexible tube (nylon or rubber), close with the provided plate the inlet hole of the carburettor of origin. Reassemble ldistributer and oil filter. Check, before the startup, the good condition of the spark plugs and distribution timing. Regulate the idle run.

The pipe Eugene MARTIN

Eugene Martin, well-known in the sporting mediums for his many achievements of value, decided to manufacture a pipe which brings really " a transformation " to the engine.
The development was done on an engine placed on a test bench, and finally, after many experiments, allowed to carry out a pipe with re-heating (only system to avoid the icing accentuated on the 203 engine  which gives very interesting results.
Mr. Martin ,the boss of  a "Solex service point", his "sports"  settings give however a lower consumption than the original 203 engine. The pipe with double carburettor Eugene Martin adaptable on 203 Peugeot gives a superior efficiency to the engine. This assembly is mounted on the driver's side of the cylinder head. Re-heating is obtained by the water circulation, which allows less significant calorific variations than in reheating by contact of exhaust, which, often, harm the good carburation.
The fixation is very simple to realize and an installing note is joined at every supply of equipment. The equipment includes all necessary parts that the tranformation requires.
The idle, which, on the multi-carburettor assemblies, is often a delicate point, does not offer a disadvantage in this device, balancing being done in the room of admission of the cylinder head.
The engine supply, by this pipe, allows a better filling of the cylinders and, consequently, an increased power. The assembly carried out with Solex carburettors 32 PBIC, offers the advantage of being able to use the carburettor of origin, the interested part is to purchase only of a second apparatus. Only the adjustment of the first carburettor will be to change, the second being provided with the new carburettor.

Here some recorded performances:

- acceleration, standing start, to reach 110 km per hour mass-production car: 59 S

- car equipped with the Martin pipe: 38 S, is a remarkable improvement of 21 S

- dash speed controlled in Montlhéry: 134 km/h

The profit of power is about 13 CV.  Although this assembly is perfectly realizable without demounting of the cylinder head, it is recommanded to examine the state of the valves, the springs and the seats, operations which, very often, are very useful.

203 Darl'Mat