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Originally Posted by 87GNX
D.I and hotter cams.
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I think DI would be a major revision, pretty much a different engine. ...Cam driven fuel pump, heads with an injector hole, new intake.
I think they already took a pass at the low hanging fruit with their 2015 update:
Quote:
- Larger intake valves
- Larger exhaust valves
- Revised intake camshafts
- Revised exhaust camshafts
- Stiffer valve springs ensure valves close completely at high rpm
- New cylinder head casting – revised ports provide straighter path to the valves for less restrictive intake and exhaust flow; combustion chamber modifications accommodate larger valves
- Sinter forged connecting rods are lighter and more durable for high-rpm operation
- Redesigned piston tops – deeper cutouts clear the new larger valves
- Rebalanced forged crankshaft to support higher-rpm operation
These upgrades have boosted output of the V8 to 435 horsepower and 400 lb.-ft. of torque.
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They won't need a huge bump, but without more displacement they may be running out of road.