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Personally, I'm most excited about the possibilities that direct injection brings. It allows for about 25% higher cylinder pressures on any given octane due to in-cylinder cooling during compression. That means that instead of being limited to 600 ftlb on 93, we will be able to make 750 ftlb on pump without having to resort to larger displacement. High cylinder pressure combined with high rpm that these engines love means massive hp if you take advantage of it. If this works out the way it could, we will see 8-900 rwhp pump gas mustangs and 750-850 rwhp trucks with only a bolt-on kit.
What does direct injection mean for the supercharged crowd? I am less than patiently waiting for a 2018 and a Whipple.
Ha ha. I was responding to post #25 claiming Ford crippled the 5.0 to make the EcoBoost looks good. A 5.0 will still qualify for Le Mans GTE Pro under 2016 and current rules. Why Ford used a TT V6 instead is anybody's guess but I don't think the 5.0 is intentionally crippled.
I do believe ford intentionally de-rated the power of the truck 5.0. I could only speculate the reasons why.
I know the 5.0 would qualify, but it wouldn't be allowed to have forced induction. Ford used the 3.5tt in lemans because a race-gas turbo 3.5 will have the power of 7-10 or more liters. This is why I say the rules were written to give smaller turbo engines an advantage.
What does direct injection mean for the supercharged crowd? I am less than patiently waiting for a 2018 and a Whipple.
If *they* use it to its full advantage, it means more boost, translating to more torque and power. Port injection is limited to about 2 ftlb/cid on pump gas. Direct injection can hit 2.25-2.5 pretty easily.
For the life of me, I can't tell for sure where the direct ignition coils are on the 2018? Does one of them has a blue label in the picture? Not as symmetrically laid out as in 2015.
Originally Posted by species8472
Back on topic... When you compare the press photos of the 2015 F150 V8 to the 2018 F150 V8 (attached), you can see it's the same block. The heads are different obviously for ported and direct injections, and the valve train is different too. Oil sump and likely oil pump will be different to accommodate auto stop/start.
Good to see Ford keeps the V8 around to 'market' to die hard V8 fans or they might flock to Ram or Chevy/GMC or God forbids Toyota or Nissan.
2015 F150 V8
2018 F150 V8
Last edited by species8472; 04-19-2017 at 09:58 PM.
04-19-2017, 08:14 PM
