2018 5.0L vs 2017 3.5L Ecoboost vs 2018 2.7L Ecoboost vs 2018 Raptor
02-09-2018, 12:32 AM
#161
Of course not, they have proven what many have been saying for a long time. They just go against the supposed rumor that the Ecoboost engines were the performance kings. Especially on the 2.7L, you can't go quicker with a smaller, weaker engine, in a truck that weighs the same as a 5.0L or 3.5L Ecoboost.
I would like to see a dyno comparison of the older and newer 2.7tts
02-09-2018, 01:55 AM
#162
I know the extra gear spacing of the 8sp in the Rams made a huge difference over the 6 sp. As posted above, when down shifting at wot it stays closer to the power band as opposed to dropping into the lower RPMs like the 6sp does.
That said, the 10sp may not benefit the eco's much with their lower power band, but not sure how it would hurt them as it appears to be the case with the 2.7l.
That said, the 10sp may not benefit the eco's much with their lower power band, but not sure how it would hurt them as it appears to be the case with the 2.7l.
I always read that turbo engines like a load to build boost!!!Now with the steep 1st gear ratio in the 10 speed there is less load then with the 6 speed in 1st gear!!!Now for anyone saying the 10 speed helped the 5.0 engine the most I would agree it helps it get into the higher rpms quicker where it makes it torque and horsepower!!!
02-09-2018, 05:24 AM
#163
This makes sense since it needs time to build boost. We really don't know if the 10-speed hurt the 3.5tt in acceleration since it had engine upgrades the same year.
It surely helped mpg, but I am thinking a gen 2 3.5tt with the 6-speed would have been even faster!
It surely helped mpg, but I am thinking a gen 2 3.5tt with the 6-speed would have been even faster!
02-09-2018, 07:18 AM
#164
Senior Member
02-09-2018, 11:56 AM
#165
Senior Member
The thing is that the 2.7tt would put down silly dyno numbers stock, even matching the 3.5tt. It's like they went overboard on the tune. Since the 10- speed, the 2.7tt seems to have lost about 0.5 seconds 0-60, as if it was dialed back a bit.
I would like to see a dyno comparison of the older and newer 2.7tts
I would like to see a dyno comparison of the older and newer 2.7tts
Wheel hop and tire spin are my enemies right now!
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nihilus (02-09-2018)
02-09-2018, 12:30 PM
#166
Agreed. I think the 3.73 makes a world of a difference off the line, or even just being able to speed up quickly on a roll with just a little bit of gas without even downshifting.
02-09-2018, 12:56 PM
#167
The thing is that the 2.7tt would put down silly dyno numbers stock, even matching the 3.5tt. It's like they went overboard on the tune. Since the 10- speed, the 2.7tt seems to have lost about 0.5 seconds 0-60, as if it was dialed back a bit.
I would like to see a dyno comparison of the older and newer 2.7tts
I would like to see a dyno comparison of the older and newer 2.7tts
Our other car is a Lincoln MKC and it has the same 2.3 eco as the mustang yet it's pushing less HP and TQ.
02-09-2018, 01:33 PM
#168
I was surprised at how much difference there is between 3.73 and 3.55. I test drove two identical trucks, one with 3.73 and one with 3.55. I could really feel the difference in acceleration.
02-09-2018, 01:56 PM
#169
Senior Member
What were they? Ironically, not sure how familiar you are with gear changes, but there's ALWAYS a point where you've made it shift too much and you end up slower than you were with longer gears. I'd bet the difference between 3.55's and 3.73's is only in the 0-40 or 0-60 range that's only if not traction limited. Past those speeds i'd bet the 3.31 and 3.55 are faster than the 3.73.
02-09-2018, 02:06 PM
#170
Both were 2017 models with the 2.7, in XL trim, identical options. Off the line and at lower speeds acceleration was noticeable. I drove the one with 3.55 gears home, and the next day drove the 3.73 around for about 20 to 30 minutes and my son and I were surprised at the difference in get up and go.