6.2 govenor spring

[creighta]

I don't remember who now, but In the oild debate thread I noticed someone had a 6.2 govenor spring mod in their sig.

can someone explain this one to me I haven't heard of it

 

[dyoung14]

im going to do it to mine, it gives you 4000 rpm

 

[LCAM-01XA]

What's your current speed the engine is governed at? Mine is 3800 rpms, and I'm quite happy with it...

 

[dyoung14]

If mine was 3800 like my dads i would be happy you would be suprised at how much that extra rpm helps, mine is only 3300 way too low for me

 

[creighta]

can these engines handle that? I never let mine rev to 3 grand bc I worry about blowing a head gasket or something.

 

[ameristar1]

They are governed from the factory for the pickups at 3800 rpms. MD's are like 2700-3000 rpms. The bottom end stock is ok to about 4300 rpms. Cam hits the wall after 2900-3300 rpms, so spinning it faster doesn't help much.

 

[Diesel JD]

They're definitely OK at full governed RPM without scattering parts unless something was broken already. Going beyond that is at your own risk. The peak HP on the engine dyno is not until around 3300 RPM on these things, but as Heath pointed out that's on an engine only dyno not a chassis dyno. The worst things about above 3000 RPM is the truck gets very loud and you burn a lot more fuel than you really need to.

 

[dyoung14]

the factory balance job is good for at least 4000 they might be better than that but i have herd valve springs float at 4200

 

[snicklas]

The way IH engineered these engines, or over-engineered the engine, the blocks are fairly stout. These and most diesels will run on the govenor all the time and not hurt them. I know that when Trav lost 5th gear in the goat truck, to keep up on the Interstate he was on the gov in 4th, and he had a higher spring kit.... So I would not worry about hitting the 3k mark...... it is just loud and inefficient..... I know the my 6.0 doesn't max out till 3500~ and redline on the tach is 4k.

 

[LCAM-01XA]

I've done it too, several hauls from Columbus OH to Detroit MI, making a 4 hour drive in 2.5 hours pulling a 30ft enclosed car hauler... good thing I was not the one paying for the fuel

 

[KNUCKLES DEEP]

mines is goved at about 2700 it alson has a zf5 speed can i put a bigger governer spring kit in mine?