rippledabs

iTrader: (3)

Anyone running 1.6 with lower compression pistons and GT28R running 16+ psi? Can I check out your timing tables?

I'm using the generic FM 1.6 timing map, and it looks really conservative. I had it on the dyno, and it was only making 200 whp at ~16.5 psi. The last owner said the pistons were 8.5:1, but anyone know a good way to verify?

After messing around with timing, it got to 230 whp at 16.5 psi, but I think it's still conversative. I'll post the timing table and dyno plot when I get home.

Braineack

iTrader: (62)

in all seriousness, you could probably bump 10* of timing more in boost to your map and still be conservative.

neogenesis2004

iTrader: (12)

NO NO NO, don't tell him that. Next thing you know he's going to blow his motor. In all seriousness, just fork out the cash to get it professionally tuned.

Braineack

iTrader: (62)

here's the table he's running:



I might have been exaggerating, but I bet he could get away with 18* of timing at 16psi, not 8*.

miatauser884

iTrader: (11)

check out my recent dyno thread. Mines not low compression, but my map is more advanced than yours and has no knock. Its an excel file