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Powerband Proofs
Rebuilding of a .12 Novarossi which had some pre-ignition. Customer wants to try rebuild with same internals.
Piston that was paired with the plug showing signs of detonation.
This is how a plug can show signs of pre-ignition/detonation.
Clutch analysis that goes with the dyno analysis in the next picture.
Chassis dyno analysis of a Mugen MRX6
Engine rebuild. From gunked up and dirty to running strong. Replaced the bearings and o-rings all around.
Engine rebuild. From gunked up and dirty to running strong. Replaced the bearings and o-rings all around.
Engine rebuild. From gunked up and dirty to running strong. Replaced the bearings and o-rings all around.
Engine rebuild. From gunked up and dirty to running strong. Replaced the bearings and o-rings all around.
Engine rebuild. From gunked up and dirty to running strong. Replaced the bearings and o-rings all around.
Engine rebuild. From gunked up and dirty to running strong. Replaced the bearings and o-rings all around.
Holding compression well. No cylinder leakage.
New bearings installed
Engine analysis and optimization on .12 on-road engine. More results in the next picture.
continued from previous graph
Graphing for race optimization. High and low frequency show diagnostics and powerband behavior. Dead stop and rolling start for launch tuning and usable power.
Example of X and Y axis setup used in the analysis for getting the perfect shift point.
Engine break-in finished. Now it is cleaned, oiled/lubed, reassembled and sealed.
Black line- modified sleeve / Blue line- baseline
ZONE A-
---black line's bigger spike means cylinder filling improved at low rpm, blowdown timing or transfer efficiency improved, and crankcase pressure is stronger earlier
ZONE B-
---both curves dip after initial hit but black line (modified ) drops less and recovers faster
ZONE C-
---black line has higher average torque, less oscillation, smoother delivery. This improved combustion stability and scavenging consistency.
ZONE D-
---Both lines show a resonance spike. Black line is higher, sharper and stronger which means the mod made the pipe work better by increased exhaust energy.
ZONE E-
---Blue line carries slightly longer at high rpm meaning baseline sleeve breathes slightly better at extreme rpm and black line favors torque over peak rpm airflow suggesting the modification reduced exhaust duration slightly or increased trapping efficiency.
MEASURABLE GAINS FROM GRAPH-
---launch torque ≈ +45–50%
---pipe hit torque ≈ +20–25%
---average torque ≈ +15–20%
ZONE A-
---black line's bigger spike means cylinder filling improved at low rpm, blowdown timing or transfer efficiency improved, and crankcase pressure is stronger earlier
ZONE B-
---both curves dip after initial hit but black line (modified ) drops less and recovers faster
ZONE C-
---black line has higher average torque, less oscillation, smoother delivery. This improved combustion stability and scavenging consistency.
ZONE D-
---Both lines show a resonance spike. Black line is higher, sharper and stronger which means the mod made the pipe work better by increased exhaust energy.
ZONE E-
---Blue line carries slightly longer at high rpm meaning baseline sleeve breathes slightly better at extreme rpm and black line favors torque over peak rpm airflow suggesting the modification reduced exhaust duration slightly or increased trapping efficiency.
MEASURABLE GAINS FROM GRAPH-
---launch torque ≈ +45–50%
---pipe hit torque ≈ +20–25%
---average torque ≈ +15–20%
Based on this chart, to optimize performance:
If you want more punch-
stiffer clutch springs, slightly shorter gearing, slightly hotter plug
If you want smoother drive-
softer clutch springs, slightly richer bottom end, slightly heavier shoes
If you want more punch-
stiffer clutch springs, slightly shorter gearing, slightly hotter plug
If you want smoother drive-
softer clutch springs, slightly richer bottom end, slightly heavier shoes
Here we analyzed the dyno charts of 16% and 25% nitro fuel.
***these results are only applicable to the engine and vehicle setup they were tested in.
***these results are only applicable to the engine and vehicle setup they were tested in.
*TUNE* start to finish (without dyno fine tune). Closest real-world scenario without actually being at the track- real environment, real humidity, real throttle and rpm usage(other than drag racing).
When an engine is tuned, we record the ambient conditions and include them with the engine to make fine adjustments easy when engine is received by customer.
When an engine is tuned, we record the ambient conditions and include them with the engine to make fine adjustments easy when engine is received by customer.
Dyno pulls for performance analyzation. Slide right for breakdown of results.
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