On a 2.3 L engine, why did they lower the compression when they changed to FI from carburation


Asked by Mar 22, 2014 at 06:35 PM about the 1985 Ford Ranger S Standard Cab SB

Question type: Maintenance & Repair

From info I've been able to dig up. (84 2.3L carburetor has higher compression) when FoMoCo changed to fuel injection (85) they lowered the compression ratio.

2 Answers


EPA regulation change in 1985, they did it to pass emission standards.


Yup. Most likely to cool combustion temperatures and lower Oxides of Nitrogen.

Your Answer

Ford Ranger Experts

  • #1
  • #2
  • #3
    Bob Beaman
View All

Related Models For Sale

Used Ford F-150
2,525 Great Deals out of 219,810 listings starting at $1,222
Used Chevrolet S-10
9 Great Deals out of 1,005 listings starting at $999
Used Ford Mustang
288 Great Deals out of 38,306 listings starting at $1,995

Used Cars For Sale

2011 Ford Ranger For Sale
25 Great Deals out of 691 listings starting at $3,988
2010 Ford Ranger For Sale
9 Great Deals out of 369 listings starting at $2,900
2009 Ford Ranger For Sale
10 Great Deals out of 255 listings starting at $3,500
2008 Ford Ranger For Sale
13 Great Deals out of 368 listings starting at $3,000
2007 Ford Ranger For Sale
11 Great Deals out of 266 listings starting at $2,750

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.