HOW TO DO AN ADVANCED SEARCH.

Mon Jul 08, 2013 3:56 pm by Admin


For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.

When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).

After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …

Comments: 0

Latest topics
» Oil Pan question
Today at 7:39 am by Hotrodz of Dallas

» 83' Porsche 944 LM7 Build
Yesterday at 1:39 pm by Jchard944

» Throttle body question
Yesterday at 12:02 pm by Rothaus

» Posche 924 Audi 4.2 V8 ABZ
Yesterday at 11:25 am by Ralphhh

» New convert under way
Yesterday at 10:04 am by kevin924kevin

» How to bleed LS1 w/ 951 radiator?
Sun Feb 18, 2018 8:05 pm by 948

» Magnuson supercharged car?
Fri Feb 16, 2018 4:08 pm by Michael B.

» Still pulling away like a freight train supercharged 944 LS1
Fri Feb 16, 2018 3:14 pm by Michael B.

» 1994 porsche 968 For Sale LT1- MAKE OFFER
Wed Feb 14, 2018 2:33 pm by Dawgz83948

» WTB: LS powered 968
Tue Feb 13, 2018 10:53 pm by ScarGO1

February 2018
MonTueWedThuFriSatSun
   1234
567891011
12131415161718
19202122232425
262728    

Calendar Calendar

Log in

I forgot my password


5.3L DoD or AFM

Go down

5.3L DoD or AFM

Post  Ender751 on Tue Dec 08, 2009 9:12 am

Has anybody considered the Active Fuel Management (AFM) formerly Displacement on Demand (DoD) engine that chevy put in the Trailblazers and Envoy's in 2005? From my understanding it's the same as the 5.3L truck motor but is capable of shutting off four cylinders in light load conditions. I am wanting to build my Porsche as a daily driver and the 5-7% MPG increase would be welcome.

The motors on car-parts.com are similarly priced to the 5.3L truck motors (L33) although there are fewer of them. I also browsed several trailblazer forums and heard they have similar reliability.

Any thoughts?
avatar
Ender751

Posts : 28
Join date : 2009-10-02
Age : 30
Location : Dayton, OH

Back to top Go down

Re: 5.3L DoD or AFM

Post  944-LT1 on Tue Dec 08, 2009 9:46 am

That would be pretty awesome but how is AFM controlled in those vehicles? If its all in the engine computer ECM, then it should be easily doable. But if it requires parameters from PCM/BCM, youre in for a long ride (no pun intended). Laughing

I know of no one who currently runs DOD or AFM in their conversions as of yet.

_________________
[You must be registered and logged in to see this image.]

[You must be registered and logged in to see this link.]
avatar
944-LT1
Moderator
Moderator

Posts : 1259
Join date : 2009-06-09
Age : 96
Location : NOTRE DAME

Back to top Go down

I looked at that as an option, briefly

Post  Arthropraxis on Tue Dec 08, 2009 11:42 am

They are all DBW and I just don't want to deal with anymore than I have to. If you want to cam it that will be a problem. I have seen on the truck forums where people have programmed it out and swapped parts to make them normal motors. So, if it is not what you thought you can make it non DOD.
avatar
Arthropraxis

Posts : 1084
Join date : 2009-09-02

Back to top Go down

Re: 5.3L DoD or AFM

Post  Porch on Tue Dec 08, 2009 10:42 pm

I don't know anything about the DOD, but you might also look into Lean Cruise--available on the Holden computers, and also something that can be added to the GM computers (search around on the EFI Live forums).
avatar
Porch

Posts : 851
Join date : 2009-09-02
Age : 36

Back to top Go down

Re: 5.3L DoD or AFM

Post  Ender751 on Wed Dec 09, 2009 6:53 am

944-LT1 wrote:That would be pretty awesome but how is AFM controlled in those vehicles? If its all in the engine computer ECM, then it should be easily doable. But if it requires parameters from PCM/BCM, youre in for a long ride (no pun intended). Laughing

I know of no one who currently runs DOD or AFM in their conversions as of yet.

I was worried about the same thing. I'll get onto a trailblazer/envoy forum and try to find out how that is controlled. I also wondered if i could simply over-ride everything and simply control how many cylinders are running with a switch on my dashboard, it would be inconvenient but worth it.

thanks

Porch wrote:I don't know anything about the DOD, but you might also look into Lean Cruise--available on the Holden computers, and also something that can be added to the GM computers (search around on the EFI Live forums).

I will look into that. Thanks
avatar
Ender751

Posts : 28
Join date : 2009-10-02
Age : 30
Location : Dayton, OH

Back to top Go down

Re: 5.3L DoD or AFM

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum