'94 6.5 diesel pulling 7,100 lbs to 60 mph

Running a baseline test on the '94 K2500. Turbo set at 6 lbs (factory setting) pulling the test trailer to 60mph.

[@Punk-Jw]

Rumor has it, he's still sitting at the end of his driveway...

[@2jimszrnorth802]

Test drove a 96 with the 6.5 and was a half ton, Test drove an 03 6.0 2500HD after that. the 03 came home with me. Those 6.5's were just terrible.

[@dictatorofsalt5902]

@@2jimszrnorth802 them vortecs are good engines, i have one but i want to get a 6.5 in another truck and bullet proof it estimated cost is 1k of new parts and how much an engine costs but i have a friend getting rid of his 6.5 and swapping in a 5.3, so i am lookin for a squarebody or something simple

[@swamp-yankee]

@@2jimszrnorth802 they won’t pull like a 6.0 that’s for sure, but they don’t guzzle fuel the same way either. Ive got a 2003 2500hd that is our main farm truck. I’m looking for an old 1 ton with a 6.2 or 6.5 for a fire wood delivery truck though. It’s not a bad engine in the right application. The military still runs loads of them, and they wouldn’t if they weren’t any good. They just aren’t fit for a tow rig. My neighbor gets 20mpg bumping around back roads in his, and parts are still manufactured, plus there’s thousands in junk yards.

[@rock-uu7qr]

@@swamp-yankee What? my 6.5 had 440lbs of torque at half the rpm it out pulled it for sure

[@geneturner3190]

I got a 95 with the 454 and it rocks and pulls everything I can fit on the thing

[@joshjones3408]

Holy sh.. it's George strait i cant believe it.. great video 👍

[@theaveragejoestinkeringand4407]

Not bad for an old engine built for fuel economy.

[@g-manracer1997]

Not sure what hes doing but my 93 6.5l pulled a 36ft 5th wheel weighing in at 12k, with no problems at all.... quite honestly the best damn truck I've owned. I know theres alot of haters out there, but I got no answers, as to why? Maybe I just got lucky? I know they DO say 92-93 were the best years, so who knows? It's an extended cab long bed dually 4x4, all stock.

[@wild_horses]

I have the same set up as you do , i pull a 2000 jayco 3610 fifth wheel weighing in at around 11,500 , my 6.5 does good on the flats but in the mountains she struggles a little bit but gets the job done.

[@ZeldaIsMyLove]

The 6.2 and 6.5 are amazing engine. GM just fucked them up. They never made crazy high power, and the transmissions weren't the awful. But they could pull all day

[@slhopf]

Final drive ratios

[@workct4102]

No it didn't

[@g-manracer1997]

@@workct4102 you would know, oh mighty one.....

[@TheMcdrewb]

Thanks for posting 6.5 video

[@edhombre]

my dad has a gmc 6.5 detroit and he pulls his trailer full of cattle to auction all the time and has never had any issues 10k.

[@Maintenancebay]

How often do you get "you look just like George Strait"?

[@redneckillinois2030]

drew pearson was fixing to say the same thing lol

[@thomasjacobsson4348]

I remember a lot of people talking down about 6.5 diesels in school and how weak they are, but I grew up learning how to drive one and it never had any problems tearing up what it was given. Grandpa's old '94 k2500 with a 5 speed stick. Once though, it was down on power on a road trip from a lack of boost with the vacuum pump busted. However, what it lost in performance it gained in coal rolling ability, a very effective tailgater repellant. Then I was working at a tire shop and had to bring in a truck to the back for a new set of rubbers. I was approaching it and was thinking "sweet, old chevy with the same motor... but an automatic transmission". From the dashboard it was either a '95 or '96. Started it up, threw it in gear, god did it drag its feet. So, now I think I know where the rumours of weakness came from. Not the motor, but the slushbox.

[@brookewoody8620]

I'd say it pulled excellent do you still have it

[@vivillager]

Wish the video didn't cut out early. I'm wondering how EGTs responded to higher boost as well as power. I'm also wondering if the truck adjusts fuel to the higher than stock boost.

[@jacktopolinski2475]

The only time I see these V8 diesels smoke black is with bad injectors. My guess is the rotary style injection pump with a cam ring and plunger type delivery element can't reach the high ('power') delivery volumes per cylinder cycle that an inline setup with individual delivery pumps can. Look at the p7100 on a Cummins 5.9 and how they can smoke haha

[@vivillager]

@@jacktopolinski2475, I have a 93 6.5 diesel, it smoked white at start up, think it was a bad pump. Replaced pump, injectors, and glow plugs, white smoke went away. Also have a 5.9 Cummins, CP3 common rail. It smoked black under heavy acceleration. New injectors and pump on that one, smoke went away.

[@BabyBlue.23]

The next video on this channel shows 10lbs of boost. Unfortunately the numbers are about identical

[@barryosbourne2581]

6.5 lives

[@drewisaacson9533]

Mine blew up doing this

[@bradbutcher3984]

I pulled that in a 2006 dodge Dakota.

[@itsolplowboy7623]

My 94 chevy with a 350 small block will eat a 6.5 alive on towin 😂😂😂 gotta love a 6.5 tho

[@ryanburbridge]

Well any updates? You guys give up on this old truck?

[@davidharrell8890]

It did a lot better than your 6.2 .

[@jondaman2034]

hey what axle ratio you got? I got a mechanical 93 and was wondering if it would tow that much easily. it seems like yours struggled a little so I was wondering the axle ratio of yours

[@NorthSideNorm]

I have a n/a 6.5 with a nv4500 tranny with a 12 bolt rear end and 3.73 gearing it pulls way better than that thing. I pull a 32ft dutchman 5th wheel camper that weighs 9200lbs. I have a few things done to mine (injectors, pump, intake and exhaust) so my guess is that thing has been driven hard and is worn out

[@farfromperfect4643]

@@NorthSideNorm The way he was driving it in the video gives me no hope that it's ever been babied...

[@bgd73]

@@NorthSideNorm yes there is something wrong. If that were automatic, I bet he'd have to take it to a garage as it would be even slower.

[@togodbetheglory9725]

Does it run hot .mine does when towing.how can i fix it. Its not the radiator its not the fan what it could be any help would be appreciated

[@Knochensplitter]

The standart Fan is WAY to small!

[@togodbetheglory9725]

Knochensplitter so wich one should i get.& wgat kind. Thanks

[@corby9591]

ggg's fan try a bigger size and make sure its for that exact engine also try a coolant flush hope this helps.

[@corby9591]

ggg's fan and do a coolant pump upgrade and check the pump gasket that's all i can think that will help.

[@togodbetheglory9725]

Pleb 👍

[@johnspencer7291]

han solo

[@brookewoody8620]

Is it a farm truck

[@workct4102]

JC....3500 shifts? My F150 with a 4.9 would do better shifting at 3-3200

[@poogan1239]

filmed with a potato...

[@Omegadoomship]

I’ve seen worse

[@DavesRange]

Potatoes are for food not photograph

[@dr.fishing5740]

"Not bad.." HA!

[@donacianoguerrero3711]

I have one and l love it 😍😄

[@Doge5600]

you stole this from Hondo Lane

[@injectors5049]

Tows awful

[@yogiballa]

it's getting the job done...

[@dictatorofsalt5902]

not meant for hauling the engine was for fuel economy

[@rock-uu7qr]

@@dictatorofsalt5902 weird that an engine "made for fuel economy" makes the same power as a 12 valve

[@dictatorofsalt5902]

@@rock-uu7qr your talking about nearly a 100ft lb of torque difference and different transmission and rear ends contribute to that

[@rock-uu7qr]

@@dictatorofsalt5902 1998 12 valve made 200 horsepower and 450 pounds of torque. My 6.5 makes 215 horsepower and 440 pounds of torque. I love cummins but stop your misinformation