1986 Ford F-250 4x4 6.9L Diesel 0-60

[onlyinajeep213]

My 6.9s odometer has flipped over still starts right up awesome motor it used to haul 4000 pounds of water in the bed every night

[yotaboy299]

Is a 1987 Ford f350 powerstroke a good truck because I was thinking in getting one today

[blackhawk8427]

@yotaboy299 of course its a good truck, but its not a powerstroke

[Sparky6867]

@blackhawk8427

Ditto, powerstroke wasn't until late 1994.

[countryboy77351]

Yeah because the 7.3 lasted from 88-02....the 6.9L went form 83-87, plus, diesels werent popular in that time period....

[460EFI]

@countryboy77351 the 7.3 idi ran from 88 to 94. its the same as a 6.9, only with an over-bore. in 95 they came up with the powerstroke 7.3, which, while very similar in many ways, was a different motor.

[countryboy77351]

6.9L is by far the best of the Ford diesels....

[MrBrockberg]

@countryboy77351 are you high? ford and international put over 2 million 7.3 powerstrokes in ford trucks and vans . if they werent good they never would have sold 2 million of them

[460EFI]

@MrBrockberg the early 90s was the start of the "diesel revolution." more and more people looked to diesels for their towin power. the old cummins 12 valves, and powerstrokes were what got people in gear. the early idis, really werent that popular, thanks to black smoke and big-inch gassers that made similar power.

[MrBrockberg]

@MrBrockberg yea i am high i know ford put over 2 million 7.3 POWERSTROKES in trucks and vans and broncos. They never put that many 6.9 and 7.3 IDI's in trucks ,vans,broncos ever

[MrBrockberg]

@MrBrockberg how is it by the far the best?? before i get started i love fords and i love cummins but fords more . but 6.9s are a nightmare to make or get more power out of . they good low speed haulers at best. and they blow headgaskets eaily stock even more so when turbocharged and you gotta plug them in a good bit. thats why ford sold 2 million 7.3 Powerstrokes and not 2 million 6.9/7.3 IDIs

[fishnfreak18]

theres an 86 f250 diesel on craigslist im lookin at buyin. are they really worth the money or is the 6.9 a piece of junk?

[blackhawk8427]

@fishnfreak18 an 86 is the best version of the 6.9 block so ur good there. They are good motors so long as you DONT turbo them. if u turbo em you NEED head studs... they can take a beating but they arent as durable as the 7.3 powerstroke. Make sure you check the oil and coolant!!! 6.9s arent as prone to cavitation as the 7.3s are, but its a good idea to check anyway. ask if they've used SCTs in the radiator for cavitation... You either love em or you hate em :) haha

[fishnfreak18]

@blackhawk8427 ok cool man thanks so much for the advice i appreciate it!

[460EFI]

@blackhawk8427 they are better motors if you DO turbo them. its often misconceived that you cant turbo an idi. the difference is, they cant handle the high boost pressures. a 6.9 or 7.3 at 10 psi of boost has the same compression as a 7.3 powerstroke at 30 psi. this is because the idis were designed as naturally aspirated motors, and have a 21:1 compression ratio, whereas a 7.3 stroke has only bout 18:1. you only need head studs if you plan on boostin over 10-12 psi.

[tucsonroofing]

@blackhawk8427 Dont turbo them? I have a 6.9 in an 85 that I've put over 500,000 miles on. Still runs strong. They had breathing problems in the exhaust. I installed the turbo in 91 when it had 40k miles on it. At the same time I put a 4" exhaust on it. I never run the turbo with more than 10 psi. I've never had to put head gaskets in it. It gets 28 MPG due to the 4 speed brownie box asside the stock 4 speed. Great engine! Not as good as a powerstroke but better than a chevy any day!

[460EFI]

@fishnfreak18 the 6.9 is a great motor. if you tune your IP right, and dont get crazy, crankin the shit out of it, youll get years of great service out of it, and see 16-18 mpg. youll never make as much power as a powerstoke or cummins, but itll be reliable.

[Oorah1987]

where are you? almost looks like its around the sierra's

[blackhawk8427]

@Oorah1987 reno

[ajohnson987654321]

about how many rpms does it turn at 60 mph with that c6?

[blackhawk8427]

@ajohnson987654321 a lot haha i guess about 2800-3000 the tach didnt work right

[wickedblackcamaro]

0-60 in 27 secs lol

[blackhawk8427]

@wickedblackcamaro my new truck is better at a still slow 16 seconds lol

[wickedblackcamaro]

@blackhawk8427 what is your new truck?

[blackhawk8427]

@wickedblackcamaro '89 F250, 7.3L IDI, 5 speed

[wickedblackcamaro]

@blackhawk8427 ive heard a lot of people say that Banks products are worthless, I thought for the money you pay for them, that theyd be good stuff?

[blackhawk8427]

@wickedblackcamaro With a little modding those turbos are fine, but I still don't think they're worth the money. Buy an old beater 6.9L with a turbo, rebuild the turbo, do a little work to the truck, and sell the rest of the truck. Free turbo haha. You just have to have the money for the truck in the first place.

[powerman2442]

@wickedblackcamaro Engine will run forever though.

[86F250]

it would be a fair race between you n me.... if i had my z71... id smoke you but thats a different story

[blackhawk8427]

@86F250 haha well she did better later on.. and of course a z71 would beat the worlds 2nd slowest diesel (behind the chevy 6.2 of course) lol Put it up against a powerstroke, and well, THATS a different story! :)

[86F250]

3 gear automatc?...im gona make a 0-60 vid soon check out my truck

[86F250]

no way you pinned that thing

[blackhawk8427]

@86F250 yep, to the floor and was rollin coal, went much faster after a little work, but was still slow. lol

[chevytruck123]

with the c6 manual shift it and make another 0-60 it should be a little better!

[landen300]

Mine came from CA and I had to monkey with it to get it to move decent. The guy I bought it from said when he moved to Cali from Colorado, a shop had to mess with it to make it meet emissions for CA. I wouldnt be at all surprised if it was over 20 seconds before and now it does alot better.

[blackhawk8427]

if he told you he had to meet emissions for ca... well... correct me if i'm wrong, but there are no emissions for diesels in ca... so?? lol

[landen300]

He said when he moved there a shop did a bunch of work to it that was maintenance stuff and it never ran the same after that. I had to advance the pump timing a bit along with a few other small things. all I know is, it reached peak acceleration/power at 1/4 throttle and didnt smoke even a puff going through the rocky mountains. The thing wasn't getting anywhere near the proper amount of fuel.

[kuklok1989]

@blackhawk8427 in cali u have to some 97 and were the idi like mine are still no smog

[123ewq]

26 seconds!!! ha, nice truck man.

[blackhawk8427]

I later cut it down to 16 (after some engine work), but I don't have the truck now cause I couldn't get a title, over $1,500 in fees owed to CA dmv that they wanted me to pay! haha yea right!

[123ewq]

must have been some major engine work to knock 10 seconds off your time. Thats too bad, i wouldn't pay 1500 either, that's ridiculous.

[blackhawk8427]

actually, just cleaned the air filter, new fuel filter, ran injector cleaner through it, and fixed the air leak on the fuel return lines. gained 15mph up the big hill too, before it did 55-60, after 70-75.

[Hotrodx199]

Clean that filter it should do a little better.

[blackhawk8427]

it did

[bg1379]

What kind of mileage do you get?

[blackhawk8427]

it wasnt bad... about 12-16

[CorvusCasull]

One thing that hurts your acceleration is that C6, they take quite a few horses to run. Not that an IDI 6.9 is fast, even with 4.11s and ZF 5 speed, but hey.

However, they're cheap, reliable/tough, simplistic, will run on almost any fuel oil, sound great and are armageddon proof. (All mechanical!)

[Domman56]

u should clean out ur K&N on there man

[blackhawk8427]

plan to tomorrow, just bought the cleaner and oil

[Domman56]

Awesome tell me how it turns out