RPW Billet Camshaft Specifications Page

Mitsubishi 4G9 SOHC 16v Camshafts

Racing Performance Works is pleased to introduce a the line of Mitsubishi for the 4G9 SOHC 16v engine platform. These are not regrinds of stock cores, but billet cam cores that allow for unlimited specifications, while maintaining factory base circle. Choose from four dyno proven grinds. Custom, proprietary grinds are also available for an additional charge.

Mitsubishi 4G92 SOHC 16v Colt, Cyborg, Asti, Mirage
Mitsubishi 4G93 SOHC 16v Colt, Lancer, Mirage
Mitsubishi 4G94 SOHC 16v Lancer

Naturally Aspirated Specification Camshafts

Description	Adv Duration Intake	Adv Duration Exhaust	Duration @ 0.050" Intake	Duration @ 0.050" Exhaust	Valve Lift Intake	Valve Lift Exhaust	Valve Overlap
4G92 Std EFI Adj Tappet	252	248			0.360	0.360
4G93 Std EFI Adj Tappet	248	248			0.360	0.360
4G94 STd EFI Hyd Tappet	240	248			0.373	0.360
Stage 1 Camshaft 4G94 Auto models	248	248			0.375	0.375
Stage 1 Camshaft all models - broad power range	256	248			0.375	0.360

Stage 2 Camshaft 4G94 Auto models	256	248			0.375	0.375

Stage 2 Camshaft ECU Mods	256	256			0.375	0.375
Stage 2 Camshaft all models	258	262			0.375	0.375
Stage 3 Camshaft ECU Mods Street / Strip	266	256			0.375	0.430
Stage 3 Camshaft ECU Mods / Race only	275	270			0.361	0.361
Stage 4 Camshaft ECU Mods / Race only	266	266			0.430	0.430
Stage 4 Camshaft ECU Mods / Race only	275	266			0.413	0.375
Stage 5 Camshaft ECU Mods / Race only	275	270			0.413	0.413
Stage 5 Camshaft Race Only	284	284			0.360	0.360
Stage 6 Full Race only	300	300			0.360	0.360

Turbo Charger Specification Camshafts

Description	Adv Duration Intake	Adv Duration Exhaust	Duration @ 0.050" Intake	Duration @ 0.050" Exhaust	Valve Lift Intake	Valve Lift Exhaust	Valve Overlap
Stage 1 Turbo Camshaft Replacement for stock cam low boost 13 psi	256	256			0.375	0.375
Stage 2 Turbo Camshaft general purpose 18 psi	266	256			0.375	0.375
Stage 3 Turbo Camshaft street / strip 18 psi +	272	266			0.343	0.343
Stage 4 Turbo Camshaft street / strip 18 psi +	272	272			0.300	0.300

Description

Adv Duration Intake

Adv Duration Exhaust

Duration @ 0.050" Intake

Duration @ 0.050" Exhaust

Valve Lift Intake

Valve Lift Exhaust

Valve Overlap