another greddy TT video

phunk

saw the other one posted here and it reminded me i should pull one off my phone that was there since last fall i believe.

at the 7.5psi in the video, it did 524rwhp (i think it was)... but that was on a hot day. i can see on my cluster there that it was like 40 degrees out on this pull, so its likely the car was making quite a bit more power... especially since i have found that my car is especially temperature picky with my aggressive ignition timing.

sometimes i run it 8.5-10psi boost, but if its not nice and cool out, it must be knock feedback that causes it to pull out so much timing that it feels like its making 450rwhp (unfortunately i have no way of logging knock, but i can watch it pull the timing out and i have reason to believe it is from knock)... unless its nice and cool out, then it keeps all my timing and I suspect it to be around 600rwhp or possibly a few more. i have intentions to get it on a dyno on a cool night here hopefully soon to verify my suspicions and work on my timing map (this is the only car I ever tuned with Osiris). Considering swapping out for the DSS pro axles for this coming fall so that once it starts cooling off during the day, i would like to go claim that first stock engine 10 second pass that nobody has gone after yet.



I recommend E85 if it is available to you... it compliments the stock engine internals well by being extremely knock resistant. The VHR is still just a VQ, the internals appear pretty fragile. It is my belief that we see less VHR failure than DE failure mostly due to the more advanced engine control. Trust me, my stock engine would have blown long ago with my crappy timing map if it wasn't so "aware". If I still did tuning for customers, i would refine the map a lot more... but I am pretty careless when it comes to my own personal stuff!

__________________