73 mph M1008

[patracy]

The injection pump has a governor in it, as the governed speed is reached, it starts restricting/defueling. There's no throttle valve on a diesel, so speed is controlled by fuel delivery. A gas engine would either limit speed through ignition, fuel delivery, or reach a mechanical limit where valve float happens. Valve float in a diesel = game over.

 

[cucvrus]

I don't know. And I never gave it much thought. I know it was in the hammer down lane most of the time. And very loud. Did you ever see a CUCV that had "Hearing protection required" stenciled on them? That is why I thought it said that. I saw CUCV's that had 45 MPH on Autobahn stenciled on them. Never followed them instructions from the time I bought it. I know it always reminded me of a boat when you had it planed out at top speed. A 1 note song. Enough said. I guess the driving with out the throttle cable was believable. No explanation needed. Happy Holidays.

 

[patracy]

Interesting bit of info.

The detroit 6.2 has a "redline" of 3600rpm.

http://en.wikipedia.org/wiki/Detroit_Diesel_V8_engine

That'd co-inside with the 3400 defuel point.

 

[ranchhopper]

The dutch have been using them in pulling tractors for years and have managed to keep them together at 5000 RPM Im sure they are modified but they are really winding them up tight.

 

[cucvrus]

The dutch have been using them in pulling tractors for years and have managed to keep them together at 5000 RPM Im sure they are modified but they are really winding them up tight.

I rest my case.

 

[patracy]

The dutch have been using them in pulling tractors for years and have managed to keep them together at 5000 RPM Im sure they are modified but they are really winding them up tight.

Yup, Heath's diesel holds a land speed record for a 6.5. But it's HEAVILY modified to stand up to 5K rpm.

 

[patracy]

I rest my case.

You have a built 6.2 in your CUCV? I thought it was stock?

 

[swbradley1]

I rest my case.

So I guess that means they add fuel and run at 5,000? A pulling engine is usually highly modified, as in rocker arm girdles, strengthened main bearing cap, modified rods etc etc etc.


I'll be the first to admit I was wrong, just prove it.

 

[swbradley1]

What is defueling ?
I don't understand how a 6.2 could hold together at 4500

If you very carefully wrap it in BS it will hold up for hundreds of miles at 4,500.

 

[Warthog]

A few highlights:

http://heathdiesel.com/news/news/500hp-diesel-race-engine.html

"Heath Diesel’s land speed race engine wasn’t stock by any means,"

"Then engine block filler was poured into the coolant passages with the main bearing caps torqued in place. Heath added the filler until it was 5/8 inch below the engine’s deck surface. This improved the structure, while still allowing the necessary coolant circulation between the block and the cylinder heads"

"The higher engine speed substantially changed the amount of fuel necessary, which began to stretch the limits of the regular heavy-duty lift pump."

"This tune was custom-engineered for this unique application. It was set up to allow the engine to operate at a maximum speed of 5,000 rpm. This differs from the version Heath Diesel offers its customers, which only has a limit of 3,700 rpm. "

"Heath fed a more-than-normal amount of pure water to the engine with a version of the Heath Water-Mist Injection system. During a run across the salt, the engine consumed 0.65 gallons of diesel, and 1.1 gallons of water. The intake air temperature stayed very close to 130 degrees and exhaust gas temperature hovered in the 1,350-to-1,400-degree range."

 

[doghead]

I just took my M1008 out for a ride with the flux capacitor on(now that I know I can hit 88 mph with a stock cucv).

I went into the near future to see how this thread ends!

I'll keep it a secret so as not to create a rift in the time-space continuum...

 

[doghead]

I'll give one hint though, get your posts in soon...

 

[Warthog]

post, post, post

 

[rlltide12]

In other news, my nv4500 helps my 08 toodle along at 80 pretty comfortably on 37s.

 

[CUCVLOVER]

The injection pump has a governor in it, as the governed speed is reached, it starts restricting/defueling. There's no throttle valve on a diesel, so speed is controlled by fuel delivery. A gas engine would either limit speed through ignition, fuel delivery, or reach a mechanical limit where valve float happens. Valve float in a diesel = game over.

OK thanks I didn't know they had a governor in the injection pump. I had heard that some of them had one but I figured that was for vehicle speed. So if I hold the accelerator to the floor with the transmission in park it won't go over 3600 rpm??
Thanks for the information

 

[WillemV8]

Had my M1008 up to 115+ MPH, the speedo was reaching the 5 MPH. Offcourse, this was with a 454 BBC and on 37 inch tires. CUCV's are surprisingly stable at speed actually.

 

[rlltide12]

You got bigger hoohas than i do haha

 

[sandcobra164]

Mine is hollering loud enough at 55 indicated, 52 GPS indicated to tell me he's not happy. I've had him up to 65 indicated, 61 GPS indicated to hear him say he didn't like that at all. I normally just run between 45 to 50 indicated and he's happy as can be.

 

[sandcobra164]

Could the picture of the CUCV speedo past 85 have been from a M1009? Those can probably do that but I doubt the truck version with the 4.56 gears would hold up long term doing that.

 

[CUCVLOVER]

Mine is hollering loud enough at 55 indicated, 52 GPS indicated to tell me he's not happy. I've had him up to 65 indicated, 61 GPS indicated to hear him say he didn't like that at all. I normally just run between 45 to 50 indicated and he's happy as can be.

I heard that.

I've had the same experience with my 08 and 33's