Workbench / Active

Engine Build

Pick a platform, modify parts from the block up to intake, switch to tuning anytime, and watch live horsepower and torque updates.

All changes saved

01/Choose a platform or build a custom block to start your project.

Engine & Platform

Step 1

Platform

01 / Source

ManufacturerEngine

AttributesTorque173HP RPM5500TQ RPM1950Boost10 psi

Name

Displacement (L)

Cylinders

Base HP

Base torque (lb-ft)

Peak horsepower RPM

Peak torque RPM

Stock RPM limit

Aspiration

Boost (psi)

Can't find your engine?

Enter a custom platform when it is not in the catalog. Estimates use the numbers you provide.

Tune Simulation

Tune the engine with live RPM sweep output. Missing values use conservative defaults and emit soft warnings.

Peak Output1

HP92hp-90

@ 4500 rpm

TQ149lb-ft-138

@ 3000 rpm

Map Tune is currently the active source of truth for simulation output. Engine figures update directly from map changes.

Reset restores baseline map tables and an RPM sweep capped to the engine's RPM limit.

inferred stock: i4 | timing center 10.7 deg | boost 10.0 psi | rpm axis max 6400

Pressure:Temperature:Fuel:

Engine from build

1.8T 20V Turbo I4 (1.8L · 4 cyl)

Boost (psi)

Forced-induction behavior is inactive below 0.25 psi.

VE fallback (%)

Ethanol (%)

IAT (C)

Ambient (C)

Battery (V)

Dyno Graph

Sweep peak (includes beyond limit): 92 hp @ 7000 / 149 lb-ft @ 3000HPTQ

RPM Sweep

Simulate engine performance across a range of RPM. The simulation calculates HP and torque at each step, useful for understanding power curves.

Start RPMEnd RPMStep RPM

Ignition Advance Map (Degrees BTDC)

Rows are Load (%), columns are RPM. Values sweep with both axes like a cal map. Drag to select; Smooth applies iterative lambda blending across selected cells. Multi-cell selections expose linear/proportional up-down controls and Arrow Up/Down keyboard nudging.

Load (%)×RPM	800	1200	1600	2000	2400	2800	3200	3600	4000	4400	4800	5200	5600	6000	6400	6800	7200	7600
20	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg
30	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg
40	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg
50	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg
60	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg
70	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg
80	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg
90	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg
100	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg	deg

Fueling Map (Target Lambda)

Load (%)×RPM	800	1200	1600	2000	2400	2800	3200	3600	4000	4400	4800	5200	5600	6000	6400	6800	7200	7600
20
30
40
50
60
70
80
90
100

Volumetric Efficiency Map (%)

Load (%)×RPM	800	1200	1600	2000	2400	2800	3200	3600	4000	4400	4800	5200	5600	6000	6400	6800	7200	7600
20	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%
30	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%
40	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%
50	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%
60	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%
70	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%
80	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%
90	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%
100	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%	%

Peak Horsepower

92 hp

-90 hp vs stock

@ 4500 rpm (operating range)

Peak Torque

149 lb-ft

-138 lb-ft vs stock

@ 3000 rpm (operating range)

Soft Warnings

- Peak EGT reaches 1156 °C. Consider richer fueling or less timing retard.

RPM Sweep Samples

RPM	Load %	MAP (kPa)	MAP (mbar)	HP	TQ	Pressure Ratio	IAT (C)	Target Lambda	Injector %	Knock	EGT (C)
2500	60.0	68.8	688	43.0	90.3	1.00	29.5	0.975	2.9	OK	1018
3000	60.0	68.8	688	85.1	149.0	1.00	29.5	0.971	3.5	OK	1034
3500	60.0	68.8	688	89.5	148.1	1.00	29.5	0.968	4.1	OK	1049
4000	60.0	68.8	688	91.2	146.8	1.00	29.5	0.964	4.7	OK	1064
4500	60.0	68.8	688	91.6	144.9	1.00	29.5	0.960	5.3	OK	1080
5000	60.0	68.8	688	91.3	142.6	1.00	29.5	0.956	5.9	OK	1095
5500	60.0	68.8	688	91.1	139.8	1.00	29.5	0.953	6.6	OK	1110
6000	60.0	68.8	688	91.6	126.7	1.00	29.5	0.949	7.2	OK	1126
6500	60.0	68.8	688	91.7	107.3	1.00	29.5	0.946	7.9	OK	1141
7000	60.0	68.8	688	92.3	107.3	1.00	29.5	0.942	8.5	OK	1156