Joesixpack
Pull'n it.
- Joined
- Apr 4, 2008
- Messages
- 4,118
First up, Loaded pulls timed sweep 6 seconds. Hamilton 188/220 VS Stock common rail cam.
Hamilton pulls start earlier from 2800+ stock 2700+
Identical tune.
Next up
Transient response, inertia only no loading what so ever. Light roll to Boot.
Built a tune for specifically hitting a light load hard, throwing a pile of heat at the chargers for max spool. HP starting from almost nothing.
Max boost considerably lower than loaded pulls, just not enough load to get right on top of the chargers but still should have made a good comparison.
Identical tune.
Data 123 stock cam, Data 124 188/200
Again the Hamilton sweep line beginning a little sooner. A tiny edge that was only made once...any repeat pulls pretty much followed the stocker's sweep.
HOWEVER ***
Found that the little bit of exhaust that leaks from my waste gate actuator was plugging my air filter.
Both tests above with the same filter.
Removed the filter and made a pull without.
I'm pretty confident had the air filter been removed the stock cam would have followed pretty much the same line.
Analysis:
Peak boost has dropped by about 10 pounds, cool. Lost some egt's, cool.
Horsepower.....NIL! where's the beef?
Transient response?? Where's the spool? I made a pile of HP maxing the tune to hit that light roll, and the cam swap made DICK.
Discussion?
Hamilton pulls start earlier from 2800+ stock 2700+
Identical tune.
Next up
Transient response, inertia only no loading what so ever. Light roll to Boot.
Built a tune for specifically hitting a light load hard, throwing a pile of heat at the chargers for max spool. HP starting from almost nothing.
Max boost considerably lower than loaded pulls, just not enough load to get right on top of the chargers but still should have made a good comparison.
Identical tune.
Data 123 stock cam, Data 124 188/200
Again the Hamilton sweep line beginning a little sooner. A tiny edge that was only made once...any repeat pulls pretty much followed the stocker's sweep.
HOWEVER ***
Found that the little bit of exhaust that leaks from my waste gate actuator was plugging my air filter.
Both tests above with the same filter.
Removed the filter and made a pull without.
I'm pretty confident had the air filter been removed the stock cam would have followed pretty much the same line.
Analysis:
Peak boost has dropped by about 10 pounds, cool. Lost some egt's, cool.
Horsepower.....NIL! where's the beef?
Transient response?? Where's the spool? I made a pile of HP maxing the tune to hit that light roll, and the cam swap made DICK.
Discussion?
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