Ford F-250 Engine Braking with straight pipe

[moe346john]

what kind of exhaust you running? it sounds wicked!

[HilBil91]

Sounds good, that's one of the IDI's special traits that powerstrokes can't do.

[WARD5KUSTOMZ]

sound good man

[exileintooblivion]

nice truck

ive got an '86 but its a 460 gas extra cab

[ashho56]

if ur jakin the engine, why is it revving up...

[justin5666123]

he`s not he`s just letting it roar down a hill

[wagner59270]

gotta love those 6.9L diesels ehh I got an 86 F-250 got some good videos up of it mudding with the feeder box on the back... you should check it out

[DieselDude92]

Sounds Cool!

[FordPwns]

wat exhaust u have on that

[250sxwheeliepop]

at the time it was just 2½ in. piping. Came out about a foot behind the passenger door. No mufflers.

[425motoread425]

is that a jake brake or a downshift?? and can you put a jake brake on a silverado or toyota ect. truck????

[250sxwheeliepop]

just me downshifting.

and I doubt it

[woodman1241]

yota? jake? LOL

[xKAOTIXx]

i don't think so, exhaust brakes were made just for deisels, i don't think there is a kit for a gas engine

my buddy has one on his samurai, but hes got a 4cyl turbo deisel in it, sounds like this but like a toy

[DiscipleoftheWatch37]

hahahhaahah.

[johndeeregreen4life1]

u can only put a jake brake on a diesel.

[jakey756]

I can only laugh. lol

[DieselMikey084]

You IDI dudes rock the house!!!!!

[yehyehsoilwell]

sorry but what is an IDI?

[dankcorey2424]

indirect injection

[xprettyricky23x]

what year is that? nice exhaust bro.

[BrandonTheNeckRed]

looks like an 84 i own myself one and plan on straight pipen that bitch right quick

[wmcglone]

need help on my 6.9 on changing belts, can't find adjustment on v-belts from water pump to crank shaft. one belt travels to alternator that adjusts, other two just make the circle. no power steering, any thoughts???

[250sxwheeliepop]

Best bet is to go to thedieselstop DOT com/forums and look under 6.9l diesel forum. those guys know their stuff

[FordGuy100]

Mine will do it all the way from 3300 (governed there) all the way down to about 2600rpms. I go down a hill doing about 60-63mph in 4th, and then shift into 3rd, and its all jake brake sound.

[250sxwheeliepop]

IF i go above 2600rpm or so it looses it rumble, just sounds like a reving engine. But this was down shifting to third at around 47mph. (4:10s with 265/75 tires)

[willysjeepparidon]

how did you get it to do that

[250sxwheeliepop]

straight pipe out behind the passenger door is all. It only does it around 2400rpms.

[willysjeepparidon]

so you just let off the gas and it does it

[250sxwheeliepop]

Yep, just go down a steep grade and let off at about 2500rpms in 3rd gear. Any higher and it just sounds like a revving engine

[castirondude]

My '94 IDI does that too. It sounds just like a jake brake. Actually it seems to provide reasonable engine braking when it does that.

[250sxwheeliepop]

I'm curious to see what happens when i reduce the back pressure and add the 7" stack. I think it'll roar louder but my "braking" will be reduced (taking the 2 manifolds into a 4" Y)

[bagthatvan]

i had an 89 with a 351, it had dual 2.5 inch into a muffler, then a single 2.5 inch out. some kid gave me crap it wasnt loud enough so i cut 2 inch hole in each pipe right before the muffler, kinda sounded indian, but it was still not much different then yours, and no backfires. just loud. i liked it

[250sxwheeliepop]

Yeah without a turbo my diesel doesn't sound any different than a gas job, except at idle. I need duals bad, hell i need stacks lol

[01ltlb7]

NO NO NO Do your 5" Heck 5" duals! Diesel = less back pressure the better...

[250sxwheeliepop]

I understand that but I can only go so far at the moment without it sounding like crap. I dont like it now because it sounds like a gas job lol.

[predracer04]

With the dual threes on mine(straight through of course, right off the manifolds) it sounds almost the same as that, just a little deeper and flows awsome.

[250sxwheeliepop]

I'll try that, thanks for the input. Maybe I'll do 3" duals back to stacks

[predracer04]

If you do stacks don't go any bigger then 4 or they sound like crap without a turbo.

[predracer04]

Might want to try some 3" duals instead of one big pipe. Flow better and sounds alot nice.

[250sxwheeliepop]

sad part is its not a big pipe, only 2.5". I want to take them into a 5" so its more free flowing but I dont want it to loose its rumble

[damianhope]

wow what a piece!!

[j35ter]

do you have an exaust brake on this?

[250sxwheeliepop]

no I just downshift to third. This week or next I'm going from 2.5" piping to 5" so we'll see what the difference is