- Joined
- Jul 31, 2021
- Messages
- 1,056
- Reaction score
- 672
- Points
- 113
- Location
- NW Florida
- Vehicle Year
- 1994
- Make / Model
- Ford Ranger XLT
- Engine Type
- 2.3 (4 Cylinder)
- Engine Size
- 2.3
- Transmission
- Manual
- 2WD / 4WD
- 2WD
- Total Drop
- 1.5” till I get these springs replaced
- Tire Size
- 225-70-R14
I’ve gone down this rabbit hole several times and never found a half way decent article. I’ve probably stumbled upon all-the-way decent articles and just didn’t comprehend what I was reading. I want an explanation between “just because” and doctorate level for why old engines have such pitiful numbers compared to even the most basic modern engines
My 2.3 Lima:
100hp
25mpg max
9.4:1
3.78 x 3.12 = 21% over square
My 1.5 2018 Accord 6mt
192 hp
32-45mpg (I tried hard to get those extremes)
10.5:1
73 x 89.5 = 23% under square
Thesee two engines have two huge differences being the squareness and compression ratio... and vvt, turbo, DI, and aerodynamics. I’m 70% sure the vvt just kicks in during spirited acceleration so can we ignore that? If the accord never sees throttle past 50%, is that like having no turbo at 100% so we can ignore that?
Would it be possible to get these numbers from the Lima and still call it a Lima or would it be a completely new engine?… I mean… gas goes in, smoke come out… how hard can it be?
My 2.3 Lima:
100hp
25mpg max
9.4:1
3.78 x 3.12 = 21% over square
My 1.5 2018 Accord 6mt
192 hp
32-45mpg (I tried hard to get those extremes)
10.5:1
73 x 89.5 = 23% under square
Thesee two engines have two huge differences being the squareness and compression ratio... and vvt, turbo, DI, and aerodynamics. I’m 70% sure the vvt just kicks in during spirited acceleration so can we ignore that? If the accord never sees throttle past 50%, is that like having no turbo at 100% so we can ignore that?
Would it be possible to get these numbers from the Lima and still call it a Lima or would it be a completely new engine?… I mean… gas goes in, smoke come out… how hard can it be?