Differences between GTI and R engine: Difference between revisions
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(Created page with "Cylinder head (made from a different alloy compared to other engines in this module because of higher thermal stress) Exhaust valves (hollow, higher Ni content, nitrided) Exhaust valve seat rings (improved temperature stability and wear resistance) Exhaust camshaft (adapted valve timings) Compression ratio 9.3:1 with different pistons Piston cooling jets (higher flow rate) High pressure injectors (even higher flow rate) Exhaust turbocharger Charge pressures of up to 17.4...") |
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The ea888 Gen3 engine found in the Mk7 Golf R boasts several upgrades versus the ea888 Gen3 found in the GTI: | |||
== Head: == | |||
* Different alloy: withstands higher thermal stress | |||
* Hollow exhaust valves: with high Ni content and nitride coating for superior heat and wear resistance | |||
High pressure injectors | * Improved valve seats: enhanced temperature stability and wear resistance | ||
* Adapted exhaust camshaft: optimized valve timing | |||
High performance main radiator | == Pistons and Cooling: == | ||
* Reduced compression ratio: 9.3:1 (versus 9.5:1) with redesigned pistons | |||
* High-flow piston cooling jets: for improved heat dissipation | |||
== Fuel Delivery: == | |||
* High-pressure DI injectors: with increased flow rate for optimal fuel injection | |||
== Turbocharging: == | |||
* Larger IHI IS38 turbocharger | |||
* Increased charge pressure: up to 17.4 PSI (1.2 bar) | |||
* Larger turbo charge cooler | |||
== Cooling System: == | |||
* High-performance main radiator: ensures efficient engine cooling | |||
* 1-2 auxiliary radiators (depending on region): provide additional cooling capacity | |||
[[Category:Technical]] | |||
[[Category:Specifications]] | |||
Revision as of 17:08, 7 December 2023
The ea888 Gen3 engine found in the Mk7 Golf R boasts several upgrades versus the ea888 Gen3 found in the GTI:
Head:
- Different alloy: withstands higher thermal stress
- Hollow exhaust valves: with high Ni content and nitride coating for superior heat and wear resistance
- Improved valve seats: enhanced temperature stability and wear resistance
- Adapted exhaust camshaft: optimized valve timing
Pistons and Cooling:
- Reduced compression ratio: 9.3:1 (versus 9.5:1) with redesigned pistons
- High-flow piston cooling jets: for improved heat dissipation
Fuel Delivery:
- High-pressure DI injectors: with increased flow rate for optimal fuel injection
Turbocharging:
- Larger IHI IS38 turbocharger
- Increased charge pressure: up to 17.4 PSI (1.2 bar)
- Larger turbo charge cooler
Cooling System:
- High-performance main radiator: ensures efficient engine cooling
- 1-2 auxiliary radiators (depending on region): provide additional cooling capacity
