Citroën cilinderkoppen &bussen GS GSA 1220 1300 mod.X en Eco

4 sets 1300 X-X3
1 set 1300 eco koppen
1 losse 1220 kop 1978 GX0119303BG31B Noktype="J"
1 set 1220 nokkenassen

2 uitlaat spruitstukken 100eur/stuk.

Nokkenassen vanaf 75eur/st G13/625 G25 en 1220-611
Tuimelaarsets vanaf 65eur/kop G13/625
Cilinderkop vanaf 270eur/st bijv. G13/625, G25/625, -/- G26/625 en 1220.
Info; De nokkenassen vallen uiteen in drie typen:
1) 1015 (ook 1015PA met de dubbele klepveren), 1130 en 1220
2) 1220X2 en 1300
3) 1300 ECO

Ze zijn makkelijk uit elkaar te houden als ze nog in de kop zitten. De 1015, 1130 en 1220 kop hebben een ovale inlaatpoort en kleinere kleppen. 1220X2 en alle 1300en hebben een ronde inlaatpoort (en grotere kleppen). Moet je alleen nog 1300ECO van de rest weten te onderscheiden. Ik meen me te herinneren dat de Olyslager de makeringsverschillen tussen 1300 en 1300 ECO beschrijft.
De markering van de assen zelf zal in de loop van de tijd gewijzigd zijn ook al zijn het dezelfde assen

Tags;
Motor 1300 B G13 Carb 47/64
Boeken manuels vanaf 15eur.
1st cil.KOP1300L G25.5.B nok; E59 A57 uit set is verkocht, foto5.

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The best camshafts are the camshafts from the G12/619 GS X2 engine. However, these camshafts are very hard to find. The next best thing is to use the camshafts that come with 1130 or 1220 heads. ECO camshafts have rockers with a trapezium head. Other camshafts have square head rockers. Don't mix camshaft and rockers.

#camshafts #citroen #gs #gsa

Tuning the Citroën flat four engine
The different engines

1015:
The 1015 has 1 advantage, it's less wide then the other 3 engine and is the only one that will fit the ami super chassis without modifications. Apart from that there are only disadvantages, low torque, high revving but breaks easily.
1130:
Because of it's small capacity this engine is often skipped but it should be given a lot of thought. It's the strongest engine of all, can rev over 7000rpm without falling apart, has big port/valves heads and produces plenty of torque and power. No known problems, bulletproof even when abused. Very flexible engine, well suited to 4 speed gearboxes which speeds up reaction times a lot and makes the car feel even quicker then it already is.
1220:
Not much wrong with it. Doesn't have the high revving capability and the flexibility of the 1130. Misses the all out power of the 1300. Quite highly tuned by Citroën (X2) so not much more power easily available.
1300:
Evidently the most power of all, but more important loads of torque. There are 3 different types 1300 but there is very little between them. Unfortunatly not high revving so 5 speed gearbox is needed. Lots of tuning potential, especially in the heads.
The myth of the GSA X3 engine

Everybody seems to be looking for a GSA X3 engine, or has a X3 stashed away for conversion/tuning purposes. Newsflash: There is no X3 engine! All GSA X3 were fitted with the normal GSA engine of the time, either the G13/625 or G13/646 (ECO!) engine. So what is so special about the X3? It has a short ratio 5 speed gearbox. This gives the car some improved acceleration if you are willing to keep changing gears all the time. It is unsuitable for high speeds as it over-revs the engine.