|
The Specs
Track Times
Dyno Results
Pictures,
Movies, Noises
Back |
|
Final Dyno Results
| O.K. Here are
the final numbers that the new motor came up with after two days and
numerous pulls. We tried different jets,
different timing, different valve lash, different carbs,
and a lot of patience. The results paid off. What
we found is: With our limited availability of carbs, the
HP 950 that I had on there proved to be the best bet. We
tried a Barry Grant Silver Claw---The largest one made and it made
identical power and also showed it was lean.(Carb came off of a 502
with 740 HP at the flywheel) This was kind of
amazing. We could have played with it a bit, but the
amount of power we would have gained would not be enough to warrant
buying one--Sorry Barry. The timing likes to be at
38 degrees at full advance---Not more and no less. Power is
lost in both directions. Valve lash likes .020 on the
intake side and .025 on the exhaust. Oil pressure was
good. 80 pounds when cold at idle, 60 when hot.
80 again under a full load. Jetting of the 950 is
8 jet size different from primary to secondary. The
motor made 455 HP with only two barrels getting gas.
The motor made nearly 550 HP when exhaust system was removed and ran
with open headers. No exact specs on that pass as it was
the last one and we forgot to print it out. No pulls
were made over 7000 RPM, although the motor was still making
power---It is doubtful that I will be using it over seven.
Scary. Anyway, for now, I will post the peak
torque and HP lines from the dyno sheet. The printer ribbon is
very old and the printing is very light, so scanning is kind
of out of the question. |
|
Speed RPM |
CBTrq lb-ft |
CBDwr HP |
FHP HP |
ME% |
FA-PB lb/hr |
BSFC /lb/HPHr |
CAT |
| 6600 |
405.3 |
509.3 |
166.5 |
73.6 |
219.8 |
.47 |
74 |
|
The
High HorsePower Numbers |
|
Speed RPM |
CBTrq lb-ft |
CBDwr HP |
FHP HP |
ME% |
FA-PB lb/hr |
BSFC /lb/HPHr |
CAT |
| 7000 |
401.5 |
535.1 |
192.9 |
71.6 |
235.4 |
.48 |
74 |
|