Quote:
|
Originally Posted by GotH2O
What is the injection mixture?
|
It was more or less M50/W50. We tried 100% methanol, it was almost impossible to trim the a/f ratio due to too many fuel trim correction factors - we basically ran out of time the night before.
We looked back the dyno plot back in April and the same race fuel only managed 704whp. The car was hovering around mid 10s then. It could have easily gone into the 9s yesterday if the driver was not under pressure in the race condition against another car.
I have made a mistake on the heading of claiming 790whp - will correct very soon. Here is the latest power figures we achieved with about 10-15% of water/methanol.
Pump fuel (98 ron) only .... 610whp
Pump fuel (98 ron) + ~WAI ... 643whp
Race fuel (106) only... 704whp
Race fuel (106) + ~WAI ... 760whp
EGT was kept between 880-890 degC
Will be increasing the w/a/f percentage continue to extract more power in the coming months - race season is now over. We will continue around 50/50 but push up the ratio against fuel. I would like to see the w/f ratio going up to 40%.
Richard