Web1 de nov. de 2011 · This 327 engine has a compression ratio of over >10:1 and I have no experience with this high a compression ratio and making it a daily driver. The goal here is to have as flat a torque curve as possible from 1500 to 5500. A daily driver with a level of reliability and little maintenance. I've built a couple of ~9:1 350's using 270+ and 280ish ... Web4 de abr. de 2005 · I'm reluctant to draw a line to the limits of compression vs octane. A long time ago 6:1 was considered High Compression. I was talking the other day to Scott at King motorsports and he claims to have street Honda's running 12:1 with 93 octane. These have VTEC so the DCR is variable as well.
recomended compressions and fuel octane Harley Davidson …
Web1 de mai. de 2012 · Yes, thats called dynamic compression ratio. The static compression ratio is calculated measuring engine's parts and it's always higher than dynamic CR ... 11.4 is as high as we go on pump gas.. Now E85 is a different story! G-FORCE Motorsports 1941 CR 129 Pearland TX 77581 281-993-5451 PH 281-993-5421 FAX Web12 de dez. de 2008 · Joe, it depends on your camshaft, stall speed, gears, and vehicle weight. In my particular case, although I have seen no signs of detonation on pump 93, we are probably VERY close to the edge. Using the Edelbrock heads, our 545 comes up to 11.89:1, the cam is 251/260 @ .050, the stall speed is around 3500-4000, and the gears … the kings arms whiteladies road
Ask Away with Jeff Smith: Is 10:1 Compression ... - OnAllCylinders
Web25 de mar. de 2015 · I ran this nearly identical setup on pump gas too, never had a problem. Water temp was always 120-130 though. Oil temp was 190-200 when running … Web20 de jan. de 2005 · The more compression is bled off, the higher a compression ratio can be utilized on a given octane. The advance/retard and LSA of a cam also has an effect on the intake closing point. It's called Dynamic Compression Ratio. It's thought a DCR of around 8.25 to 8.5 is the max for pump gas with iron heads. Do a search on Dynamic … Web17 de jan. de 2009 · 489ci, pump gas 10.46 @ 124.79mph This is another hot bbc setup that likely has a lrg cam reducing cyl pressure some,likely running plenty of gear ,stall if … the kings arms winkleigh