Diesel uumph!!!
Thread Starter
|
Posting Guru
Joined: Nov 2000
Posts: 1,475
Likes: 0
Diesel uumph!!!
Hi, I have a 86 f-250 s/c lariat it has 3.73 detroit lockers and a c-6 auto I'm wondering if I can get a little more zip out of it.it has more pulling power than I will ever need but it leaves the traffic lights like an old lady can anyone help?
thanks,
John Sugden
i967mustang(No Email Addresses In Posts!)
by the way, your site is great!!!
thanks,
John Sugden
i967mustang(No Email Addresses In Posts!)
by the way, your site is great!!!
Laughing Gas
Joined: Jun 1999
Posts: 903
Likes: 0
From: Banning CA
Diesel uumph!!!
There are a couple of things that you can do, first a couple of questions, does it smoke at all when taking off? and what color is the smoke? Have you changed the fuel filters lately?
Depending on your answers, is the answer to what you can do, advise.
Dave
http://a2ztowing.homestead.com/a2ztowing.html
Depending on your answers, is the answer to what you can do, advise.
Dave
http://a2ztowing.homestead.com/a2ztowing.html
Thread Starter
|
Posting Guru
Joined: Nov 2000
Posts: 1,475
Likes: 0
Diesel uumph!!!
Dave there is a very light wisp of smoke but only after it is wound up and ready to shift the fuel filter is about 2 months old (about 4,000 miles) but it was like this from the time I bought it almost 2 years ago nothing seems to make a difference. I put a k&n air filter in it and took the muffler off and replaced it with a straight thru glass pack and it uped the mileage and gave it a little more get up but not much.
John (fat forty)
John (fat forty)
Laughing Gas
Joined: Jun 1999
Posts: 903
Likes: 0
From: Banning CA
Diesel uumph!!!
The most important thing that affects performance on 6.9/7.3 is the injector pump. Chances are that if it has never been changed it is in need. You can turn the fuel up slightly or advance the timing 2 degrees. This may give you the power you are looking for. I have a 87 with a 6.9 and even before I installed the turbo it had real good get up.
If you need info on how to turn the injector pump, there are several tech articles or you can search for it.
Dave
http://a2ztowing.homestead.com/a2ztowing.html
If you need info on how to turn the injector pump, there are several tech articles or you can search for it.
Dave
http://a2ztowing.homestead.com/a2ztowing.html
Thread Starter
|
Posting Guru
Joined: Nov 2000
Posts: 1,475
Likes: 0
Diesel uumph!!!
Dave,
I have really good mileage with this truck according to all the posts I have read, if I turn the pump up isn't it going to smoke and lose mileage? it has 149,000 on it and I don't know if it was changed but it had 110,000 when I got it and ran the same way. My mileage is 19 mpg and it doesn't matter how I drive or how much weight i am hauling. John (fatforty)
I have really good mileage with this truck according to all the posts I have read, if I turn the pump up isn't it going to smoke and lose mileage? it has 149,000 on it and I don't know if it was changed but it had 110,000 when I got it and ran the same way. My mileage is 19 mpg and it doesn't matter how I drive or how much weight i am hauling. John (fatforty)
Laughing Gas
Joined: Jun 1999
Posts: 903
Likes: 0
From: Banning CA
Diesel uumph!!!
Like anything in cars, you have to sacrafice something to get something, you can't have it both ways, if you want more power you will loose fuel economy. Even with a turbo, you will loose a little mileage. Seems you truck is set up for mileage and not power. You can turn the pump up slightly and not get the smoke. The light color smoke you are seeing is due to a lien condition. This being ok if you are looking for fuel mileage and not power. My truck with a turbo will just about keep up with any PSD off the line, but my fuel mileage does suffer from it. 12MPG.
The other option again, is to have the timing tested (dynamic and
not static) this will ensure your proper timing, but I believe that it is close or ok.
Dave
http://a2ztowing.homestead.com/a2ztowing.html
The other option again, is to have the timing tested (dynamic and
not static) this will ensure your proper timing, but I believe that it is close or ok.
Dave
http://a2ztowing.homestead.com/a2ztowing.html
Thread Starter
|
Posting Guru
Joined: Nov 2000
Posts: 1,475
Likes: 0
Diesel uumph!!!
ave, I will try turning up the pump this weekend and let you know how it goes it just hurts my pride a little to see all those little cars and all the other trucks drive away from a light, and I'm still trying to get moving. One thing I noticed about the truck is it seems to be faster if I step down on the throttle but not all the way to the floor it seems to take off faster if I'm about 3/4 of the way in the throttle.
John
John
Trending Topics
Elder User
Joined: Sep 2000
Posts: 931
Likes: 0
From: Stanton, Suffolk England
Diesel uumph!!!
My truck does the light color smoke as well. It is getting around 17-18 Miles per gallon and runs pretty strong throughout. It pulls like a bear but is a little gutlees on the get go. I am thinking a turbo will solve this but I am going to England and by the time I get back here the pwoer strokes will be over 10 years old and then I will buy about a 95-96 truck and start all over again. lol. I like my 6.9 really well and will probably keep it as well though. You can never have too much blue oval around the house 
take it easy.
Brad Godkin
1986 F350 CC/SRW
6.9liter/C6
take it easy.Brad Godkin
1986 F350 CC/SRW
6.9liter/C6
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Thread Starter
|
Posting Guru
Joined: Nov 2000
Posts: 1,475
Likes: 0
Diesel uumph!!!
Brad, sounds just like mine but I don't know if I want to go to a turbo. I just want a little bit more from a stop. as far as the blue ovals I have a yard full, three mustangs the 86 f-250, and a 1940 ford pickup the family is growing!!!! lol
john (fatforty)
john (fatforty)
Elder User
Joined: Sep 2000
Posts: 931
Likes: 0
From: Stanton, Suffolk England
Diesel uumph!!!
I would love to go to a Turbo. I am going to England for 4 years in the spring. I am going to save my pennies while there and finish my truck when I get back. I will probably go with the ATS turbo or I might even do a Powerstroke and 5 speed swap. Sounds wierd but I love the looks of the 80-86 trucks for some reason. They just look mean. How about it folks, does a powerstroke in an 86 CC sound cool? ah well, just daydreaming.
Brad Godkin
1986 F350 CC/SRW
6.9liter/C6
ah well, just daydreaming. Brad Godkin
1986 F350 CC/SRW
6.9liter/C6
Thread Starter
|
Posting Guru
Joined: Nov 2000
Posts: 1,475
Likes: 0
Diesel uumph!!!
Brad, if you're going to daydream then how about this the new 6.0 should be out be the time you get back. by the way I visited your homepage you have to change the completion date HA HA!!! If you send me your e-mail address I'll send you some blue oval pictures my 86 s/c 4wheel drive and I have some pictures of the 95 BOSS John Sugden
i967mustang(No Email Addresses In Posts!)
i967mustang(No Email Addresses In Posts!)
Elder User
Joined: Sep 2000
Posts: 931
Likes: 0
From: Stanton, Suffolk England
Diesel uumph!!!
[font size="1" color="#FF0000"]LAST EDITED ON 23-Nov-00 AT 09:28 AM (EST) by webmaster (admin)[/font][p]Oh shoot, thanks for reminding me. LOL. I have been busier than I thought lately. You can e-mail me anytime at bgodkin(No Email Addresses In Posts!). I wish I could afford a new truck but maybe sometime. The 6.0 is suppose to be something huh. take care and write anytime.
Brad Godkin
1986 F350 CC/SRW
6.9liter/C6
Brad Godkin
1986 F350 CC/SRW
6.9liter/C6
