Originally Posted by
turbotrev
I still slightly disagree.
A car that makes full boost at 3200 will still not be making power at 8k, it will be dying on its ass by then and I bet the backpressure would be through the roof esp if needing big boost to do it.
It might feel like it drives ok but that’s it.
No point in revving it that hard it’s its on full boost my 3200. You may as well change gear at 6.5/7k.
On the smaller turbos the more modern stuff is def better but the trade of for quick spool is still robbing power from the top end.
Once over 600 ish hp you won’t get quick spool (on cossies im talking)
Cheers Paul
Making a 600hp YB Rev past and still make power after 8k means the cam type and timing would mean you would loose more than you gain and the natural peak power is around 7 to 7:5k and on a 7670 the back pressure is fine.
My preference for power band and 520hp is ideally suited to the YB.
Mark