21-11-2014, 08:59 AM
Dashmader,
That's right. You get a less homogeneous charge the lower SOI you use. Obviously at full load you can only go so far before head lift and knocking becomes an issue.
In my opinion, stick with the stock 16v SOI table, with slight further advancement at high IQ, just to keep the EOI nearer stock.
Other thing to bear in mind, is that with a 16v head, swirl quality is decreased until much higher rpm is reached - to counter this you'll need more boost to make the same power lower down.... 8v are always better through the low and mid range.
JP
That's right. You get a less homogeneous charge the lower SOI you use. Obviously at full load you can only go so far before head lift and knocking becomes an issue.
In my opinion, stick with the stock 16v SOI table, with slight further advancement at high IQ, just to keep the EOI nearer stock.
Other thing to bear in mind, is that with a 16v head, swirl quality is decreased until much higher rpm is reached - to counter this you'll need more boost to make the same power lower down.... 8v are always better through the low and mid range.
JP
JP