You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!
From what I understand when using Biodiesel in your engine you have to retard the timing 2-3 degrees. Why? Can you overcome this by using a hotter ignition system?
From what I understand when using Biodiesel in your engine you have to retard the timing 2-3 degrees. Why? Can you overcome this by using a hotter ignition system?
I can't answer about the timing, but last I knew, there was no ignition in a diesel, only glow plugs or preheaters, which only are used for cold starts. Compression creates heat, and the heat is what ignites the fuel, so there is no adjustment that can be made to control when the ignition would happen, only when the fuel is injected...
__________________
the workhorse:86 F250 4x4 6.9 Diesel 4-spd, 4.10 axles
the other workhorse 92 F350 2wd crew cab,3.55 rear axle, 92 6bt Cummins, NV4500
the project: 78 F150 4x4 shortbed 351 auto Iowa Chapter leader, ASE certified parts specialist
Come on down and join us in the Iowa chapter, or your own local chapter!! Thanks, Roger
From what I understand when using Biodiesel in your engine you have to retard the timing 2-3 degrees. Why? Can you overcome this by using a hotter ignition system?
The only reason to retard IP timing is to lower NOX emissions. Biodiesel is an oxygenated fuel with a higher cetain rating than dinodiesel, It will generaly raise cyl temp by 50-100 deg , raising NOX emissions. By retarding 2-3 deg it will lower emissions. But it isn't required. FABMANDELUX.
No engine modifications are needed for the soy - biodiesel. go to www.biodiesel.org they have all the info you need.
__________________
red 04 F250 build date 04/04 6.0 PSD ,auto,cc, xlt ,sb, moon roof, 4X4, off road pkg, sports pkg., tow pkg,camper pkg,FX4, electric shift on fly
93 f350 7.3 , 5 speed manual, ext cab, long box 240K+ miles
1967 C700 farm truck
30 ft travel trailer
Vietnam Vet/ OS1 USN/USNR retired 26 years
B5 soydiesel user
Sirius radio
I didn't really notice a power improvement but, my truck seems to consistently get 2 mpg better on B20 than straight dino. Which to me would indicate a small power gain which I would assume is from more BTU's per gallon.
I didn't really notice a power improvement but, my truck seems to consistently get 2 mpg better on B20 than straight dino. Which to me would indicate a small power gain which I would assume is from more BTU's per gallon.
Actually the btu value is slightly LOWER than dinodiesel, but it is an oxygenated fuel, And has a higher CETANE RATING than dinodiesel. If it is made with hydrogenated oil it has hydrogen added, which makes the cetane rating even higher.FABMANDELUX.
Yes the biodiesel from crystalflash @ 5% soy is 51 min cetane. VS 40-42 cetane for #2. Just like adding racing fuel to your car.
__________________
red 04 F250 build date 04/04 6.0 PSD ,auto,cc, xlt ,sb, moon roof, 4X4, off road pkg, sports pkg., tow pkg,camper pkg,FX4, electric shift on fly
93 f350 7.3 , 5 speed manual, ext cab, long box 240K+ miles
1967 C700 farm truck
30 ft travel trailer
Vietnam Vet/ OS1 USN/USNR retired 26 years
B5 soydiesel user
Sirius radio
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.
IP Timing
