Turbo piston compression advice

[James5_GTT]

I am doing another f4r turbo conversion this time a high boost engine, but I have seen wossner now offer a 9.5:1 compression piston. I was going to get the normal 8.5:1 but these have now made me undecided. I am looking to run 400-450bhp on standalone not in a clio.

Any advice or anyone used with feedback?

 

[Camsmyth]

I am doing another f4r turbo conversion this time a high boost engine, but I have seen wossner now offer a 9.5:1 compression piston. I was going to get the normal 8.5:1 but these have now made me undecided. I am looking to run 400-450bhp on standalone not in a clio.

Any advice or anyone used with feedback?

I run 9.5:1 on an f4rt but also run E85 - engine builder wanted 10:1!!! Car is making over 400hp at the wheels.

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[James5_GTT]

I run 9.5:1 on an f4rt but also run E85 - engine builder wanted 10:1!!! Car is making over 400hp at the wheels.

Sent from my SM-G955F using Tapatalk

Good to know, did you run a high octane pump fuel on the setup before E85 was used?

 

[Camsmyth]

Straight onto E85 for this setup. Was on 8.5:1 when on 98 pump gas.

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