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Mazdas new compression gas engine #4556808
10/28/17 12:40 AM
10/28/17 12:40 AM
Joined: Nov 2005
Posts: 3,278
FL
mcrn Offline OP
mcrn  Offline OP

Joined: Nov 2005
Posts: 3,278
FL

Last edited by mcrn; 10/28/17 12:40 AM.

2012 Nissan Rogue
Re: Mazdas new compression gas engine [Re: mcrn] #4556813
10/28/17 12:49 AM
10/28/17 12:49 AM
Joined: Sep 2010
Posts: 7,485
S California
OneEyeJack Offline
OneEyeJack  Offline

Joined: Sep 2010
Posts: 7,485
S California
Is it still on for 2018? Kind of exciting. Leave it to Mazda once they got clear of Ford to come up with something new.

Something like this might make a good pickup truck engine.

Re: Mazdas new compression gas engine [Re: mcrn] #4556816
10/28/17 01:06 AM
10/28/17 01:06 AM
Joined: Oct 2009
Posts: 4,032
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline

Joined: Oct 2009
Posts: 4,032
Wet side WA
Well a Turbo that's going to leave it out for me. I was hoping for a 2.4 engine and in the CX-5.
Time now to wait and see if this four cylinder Turbo runs better than some of the others.

Is it going to have LSPI issues?

Last edited by JohnnyJohnson; 10/28/17 01:08 AM.

2004 Corolla 130005
Out: EDGE EP 5W-30 Bosch 3311 7156 Miles
In: Havoline Pro DS 10w-30 Purolator PureOne 3-14-19 129693
2006 Duramax 74725
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: Mazdas new compression gas engine [Re: mcrn] #4556818
10/28/17 01:12 AM
10/28/17 01:12 AM
Joined: Oct 2005
Posts: 7,094
Colorado
Kuato Offline
Kuato  Offline

Joined: Oct 2005
Posts: 7,094
Colorado
Optimally, best of both worlds. I hope they can pull it off successfully!


Thick vs Thin test: 15k / 43k miles complete
Re: Mazdas new compression gas engine [Re: mcrn] #4556872
10/28/17 06:58 AM
10/28/17 06:58 AM
Joined: Feb 2003
Posts: 8,077
Jupiter, Florida
Cujet Online content
Cujet  Online Content

Joined: Feb 2003
Posts: 8,077
Jupiter, Florida
I've read that the engine is 40% thermally efficient. That's very close to the 41% of the latest Toyota hybrid engines. Impressive considering the robust output.


People who count on their fingers should maintain a discreet silence.
Re: Mazdas new compression gas engine [Re: JohnnyJohnson] #4556889
10/28/17 07:37 AM
10/28/17 07:37 AM
Joined: Mar 2013
Posts: 5,306
The Midwest
skyactiv Offline
skyactiv  Offline

Joined: Mar 2013
Posts: 5,306
The Midwest
Originally Posted By: JohnnyJohnson
Well a Turbo that's going to leave it out for me. I was hoping for a 2.4 engine and in the CX-5.
Time now to wait and see if this four cylinder Turbo runs better than some of the others.

Is it going to have LSPI issues?


The real question is, what will the octane requirement be? It could be rated something like 55 EPA highway in a Mazda 3, but if it required 91 octane gas, that would turn some away from buying it.
Most auto makers are working on things behind closed doors to meet the 2025 54.5 MPG EPA fuel economy requirement. GM wants a standard higher octane gasoline because they know gas engines will be
far different less than 10 years from now.

Last edited by skyactiv; 10/28/17 07:38 AM. Reason: MPG omitted

Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual

Re: Mazdas new compression gas engine [Re: mcrn] #4556897
10/28/17 07:49 AM
10/28/17 07:49 AM
Joined: Jun 2011
Posts: 1,833
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline

Joined: Jun 2011
Posts: 1,833
Crawfordville FL
I can't read the article.... this signup page pops over it


2010 Ford Fusion SE 3.0L V6, 181 miles M1 HM 10w-30
Re: Mazdas new compression gas engine [Re: skyactiv] #4556900
10/28/17 07:53 AM
10/28/17 07:53 AM
Joined: Oct 2009
Posts: 4,032
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline

Joined: Oct 2009
Posts: 4,032
Wet side WA
Originally Posted By: skyactiv
Originally Posted By: JohnnyJohnson
Well a Turbo that's going to leave it out for me. I was hoping for a 2.4 engine and in the CX-5.
Time now to wait and see if this four cylinder Turbo runs better than some of the others.

Is it going to have LSPI issues?


The real question is, what will the octane requirement be? It could be rated something like 55 EPA highway in a Mazda 3, but if it required 91 octane gas, that would turn some away from buying it.
Most auto makers are working on things behind closed doors to meet the 2025 54.5 MPG EPA fuel economy requirement. GM wants a standard higher octane gasoline because they know gas engines will be
far different less than 10 years from now.


When I worked on the Pipeline years ago Premium had to be 95+ and 92 to 94 octane was regular anything 91 or lower was sub octane regular and sold at all the cut rate stations like Time and Gull. Now they are selling us sub octane regular for four to five times plus what it used to sell for as sub octane regular. Wish my wages had reflected that.

Its way past time the EPA was reeled in and these CAFE standards get reviewed and set back to something practical.

Last edited by JohnnyJohnson; 10/28/17 07:59 AM.

2004 Corolla 130005
Out: EDGE EP 5W-30 Bosch 3311 7156 Miles
In: Havoline Pro DS 10w-30 Purolator PureOne 3-14-19 129693
2006 Duramax 74725
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: Mazdas new compression gas engine [Re: JohnnyJohnson] #4557021
10/28/17 10:21 AM
10/28/17 10:21 AM
Joined: Dec 2016
Posts: 8,017
Waco, TX
Linctex Offline
Linctex  Offline

Joined: Dec 2016
Posts: 8,017
Waco, TX
Originally Posted By: JohnnyJohnson

Its way past time the EPA was reeled in and these CAFE standards get reviewed and set back to something practical.


Or lighten up on the emissions regulations..... engines are burning cleaner than ever by DESIGN and computer software.

Engines should be optimized - for ECONOMY.

Make the most fuel efficient engines possible, and don't worry about emissions.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Mazdas new compression gas engine [Re: Linctex] #4557258
10/28/17 01:20 PM
10/28/17 01:20 PM
Joined: Oct 2009
Posts: 4,032
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline

Joined: Oct 2009
Posts: 4,032
Wet side WA
Originally Posted By: Linctex
Originally Posted By: JohnnyJohnson

Its way past time the EPA was reeled in and these CAFE standards get reviewed and set back to something practical.


Or lighten up on the emissions regulations..... engines are burning cleaner than ever by DESIGN and computer software.

Engines should be optimized - for ECONOMY.

Make the most fuel efficient engines possible, and don't worry about emissions.


thumbsup thumbsup thumbsup


2004 Corolla 130005
Out: EDGE EP 5W-30 Bosch 3311 7156 Miles
In: Havoline Pro DS 10w-30 Purolator PureOne 3-14-19 129693
2006 Duramax 74725
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 73705 4-22-18
Re: Mazdas new compression gas engine [Re: JohnnyJohnson] #4561719
11/01/17 11:52 PM
11/01/17 11:52 PM
Joined: Feb 2011
Posts: 1,480
Dacono, CO
Bladecutter Offline
Bladecutter  Offline

Joined: Feb 2011
Posts: 1,480
Dacono, CO
Originally Posted By: JohnnyJohnson
Well a Turbo that's going to leave it out for me. I was hoping for a 2.4 engine and in the CX-5.
Time now to wait and see if this four cylinder Turbo runs better than some of the others.

Is it going to have LSPI issues?


Supercharged 2.0, not turbocharged.
Whole different set of dynamics for low engine speeds.

BC.


2014 Mazda CX-5 Touring (Soul Red)
2015 Porsche Cayman
2007 Ducati 848
1988 Honda Hawk GT
Re: Mazdas new compression gas engine [Re: mcrn] #4563114
11/03/17 03:45 PM
11/03/17 03:45 PM
Joined: Mar 2017
Posts: 8,241
...
PimTac Offline
PimTac  Offline

Joined: Mar 2017
Posts: 8,241
...
Yep. This engine will have a supercharger, not a turbocharger.

The Mazda engineers are top notch. I believe Toyota has a close eye on this engine as future plans are having Mazda engines in certain Toyota vehicles.

Last edited by PimTac; 11/03/17 03:47 PM.

Cannot see signatures any longer so it doesn’t matter.
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