Multi valve engines?

20,555

Asked by Aug 15, 2015 at 11:00 AM about the 2010 Subaru Outback 2.5i Limited

Question type: General

Do you think that an engine with FOUR VALVES per cylinder would normally outperform a
similarly sized or even larger displacement engine that had only TWO VALVES per
cylinder?    And what's the reason for this and is the one with multiple valves working
easier?

4 Answers

49,425

Study my friend, study. See the link below.

49,425

http://www.billzilla.org/2v4v.htm

Best Answer
20,555

Bob, I knew it was more desirable, but, thanks for sharing this helpful link.---Mark

20,555

Bob, another person on this forum who is in the top ten category of car gurus, suggested to me that he would bet that a 2.5 litre Four cylinder engine would actually run cooler and more efficiently that a 2.5 litre Five due to its larger cylinders and better breathing. I thought I'd share this information with you since I know you like to stay informed. Also, see this picture I captured on the net about boxer engines. As you know, knowledge is power.

Your Answer

Add photo

Related Questions

  • Multi valve engines? 4 answers

    Do you think that an engine with FOUR VALVES per cylinder would normally outperform a similarly sized or even larger displacement engine that had only TWO VALVES per cylinder? And what's the reas...

    2010 Subaru Outback 2.5i Limited

    -

    General

  • Can Subaru boxer engines be comparable in quality to Porsche? 23 answers

    Both of them make boxer engines used in production today for various cars, including the Porsche Boxster and the almost the entire line of all Subaru cars. So, how would you compare the quality an...

    2010 Subaru Outback 2.5i Limited

    -

    General

  • Under square vs. Over square engines 7 answers

    The changes that Subaru made from the EJ 25 series 2 motor to the new FB series engine introduced first on the Forrester in 2011 and later on the Outback in 2013, had some significant changes. The...

    2010 Subaru Outback 2.5i Limited

    -

    General

  • Are Six Cylinder Engines Passé? 16 answers

    With all of the advancement of naturally aspirated Fours and greater efficiency of performance, reliability and fuel economy, do you really need a gas guzzling six cylinder engine with more repairs ...

    2010 Subaru Outback 2.5i Limited

    -

    General

  • Multi-layered head gaskets on Subaru vehicles? 13 answers

    What year did this really start for the Subaru Outback?

    2010 Subaru Outback 2.5i Limited

    -

    General

Outback

Looking for a Used Outback in your area?

CarGurus has 39,289 nationwide Outback listings starting at $1,800.

ZIP:

Search Subaru Outback Questions

Subaru Outback Experts

#1 Markw1952
Markw1952
Reputation 7,460
#2 TheSubaruGuruBoston
TheSubaruGuruBoston
Reputation 2,350
#3 F_O_R
F_O_R
Reputation 2,030
View All

Related Models For Sale

Used Subaru Forester
386 Great Deals out of 33,162 listings starting at $500
Used Subaru Legacy
216 Great Deals out of 12,538 listings starting at $1,895
Used Subaru Impreza
214 Great Deals out of 19,037 listings starting at $1,995
Used Honda CR-V
944 Great Deals out of 56,148 listings starting at $1,000
Used Toyota RAV4
879 Great Deals out of 63,207 listings starting at $1,990
Used Toyota 4Runner
227 Great Deals out of 19,339 listings starting at $2,300
Used Toyota Highlander
396 Great Deals out of 25,468 listings starting at $2,495
Used Toyota Tacoma
560 Great Deals out of 42,402 listings starting at $1,995
Used Jeep Grand Cherokee
1,033 Great Deals out of 72,325 listings starting at $1,200
Used Honda Accord
1,057 Great Deals out of 66,823 listings starting at $1,000
Used Honda Pilot
403 Great Deals out of 23,213 listings starting at $995
Used Toyota Camry
1,207 Great Deals out of 82,541 listings starting at $750
Used Subaru Impreza WRX
65 Great Deals out of 1,340 listings starting at $3,365

Used Cars For Sale

2017 Subaru Outback 2.5i Limited For Sale
16 Great Deals out of 11,244 listings starting at $24,967
2016 Subaru Outback 2.5i Limited For Sale
21 Great Deals out of 447 listings starting at $21,995
2015 Subaru Outback 2.5i Limited For Sale
28 Great Deals out of 579 listings starting at $13,988
2014 Subaru Outback 2.5i Limited For Sale
20 Great Deals out of 488 listings starting at $11,999
2013 Subaru Outback 2.5i Limited For Sale
12 Great Deals out of 324 listings starting at $7,988

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.