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nico_r22

Piston height

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nico_r22

Hello everybody,

 

I'm working with  my 205 gti (XU9JA 1.9 8V fitted). This engine now has the piston at the same level as the top of the block but has an aftermarket pistons, which has the same volume, but different shape.

 

I have an engine head which is already worked, but the RC with this config reach the 11,9:1.

 

I want to reduce the piston height in order to create a volume (7cm3) that decrease the RC to 10,5 or so. Reducing the piston height in 0.5 mm I can reach these volumen, but I dont know if this engine in particular works whit this configuracion or not...

 

 

Also, how much RC final do you recomend in this motor ? (It comes with the original admision, a race manifold, a not too agresive cat cam 

(4900366) and  aftermarket ecu).

 

Thanks for you recomendation. I attached the piston designs.

1. Piston original.PDF

3. Piston Modificado Segun Hugo.PDF

5. Piston Modificado Segun Nico.PDF

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