o god!!!
- Thread starter dyoung14
- Start date
Black dawg
Registered User
I wonder how many rpm that alt belt will take. Had a 92 that got the gov screwed with would turn 4500. made for impressive acceleration and never blew up. that was along time ago and I would not do it again unless for tractor pull or racing. my current truck rarely sees much more than 2500 with the turbo and intercooler I dont need to turn it any harder. also on the 92 it would pull hard to 42ish and was turboed. all these truck that fall off at 2500 need more fuel.
dyoung14
Is getting worn out
dont know how many rpm the belts or any other accesory will take but it held to one short run of 4400, and i thought about new springs for the valves, but im not sure were too look, any ideas? i figured i wouldnt take it too far above 4000 until i got more of a spring
Black dawg
Registered User
just need some measurements spring id, od, installed height/pressure, open/pressure. might just need stockers shimmed a little. 100 pound seat pressure springs should be plenty but maybe not such a good idea on a motor that tends to drop valves oh well it probably wont last that long anyway.
DeepRoots
Tug Engineer
valve float is supposed to be @ 4200rpms (or thats what I've heard parroted around here).
The real question is, how good are the springs after 100k-200k miles in a underfunded vehicle like Dyoungs?
The real question is, how good are the springs after 100k-200k miles in a underfunded vehicle like Dyoungs?
Hybrid455
Full Access Member
dyoung14
Is getting worn out
I dunno that things like the eveready bunny! It's stress tested
yea its very stress tested, wonder were amerstar1 is? he always had something to say about reving them
he supose to make me a "rev to the moon cam"
Alex S
Jeoff
I have had experience with over revving international engines, they dont like it
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MUDKICKR
Full Access Member
if you take your right shoe off and look at that valve it looks fine.
janos1
That's gonna hurt
Wow, after seeing what a valve in these motors looks like. I'd say they have plenty of room for a nice valve job. The casting on my motor leaves LOTS of room for getting extra CFM out of 'em. Might have to fire up the flowbench and see.
zpd307
Registered User
ive been yellow lining the truck every now and again, now that the zf5 is in. what is that, 3700? 4400, wow...
Hybrid455
Full Access Member
So what were you twisting it when the valve was kissed and why did it kiss the valve? Were you standing on it for an extended period? Were you browbeating the truck? Was it valve float? Did it loose a keeper or bust a spring? Did it drop the valve? Did it stick the valve? Did something foriegn find its way through the valve seat? Was the valve guide shot? Was the rocker shot?What was the root of this evil? There had to be more to it then just RPM. RPM just found the breaking point and I am interested to know what it was.
69oiler
I don't feel tardy
So what were you twisting it when the valve was kissed and why did it kiss the valve? Were you standing on it for an extended period? Were you browbeating the truck? Was it valve float? Did it loose a keeper or bust a spring? Did it drop the valve? Did it stick the valve? Did something foriegn find its way through the valve seat? Was the valve guide shot? Was the rocker shot?What was the root of this evil? There had to be more to it then just RPM. RPM just found the breaking point and I am interested to know what it was.
all this, and more on the next Unsolved Mysteries
seriously...i think if you are trying to run it at high rpm like a gasser, why not just drive a gasser and have the top end power you're looking for?
dyoung14
Is getting worn out
all this, and more on the next Unsolved Mysteries
seriously...i think if you are trying to run it at high rpm like a gasser, why not just drive a gasser and have the top end power you're looking for?
cause twisting a diesel that high is that much funner
, it was not lacking power one bit when i twisted it that high it layed me into the seat all the way till i shifted, and let off, so it had plenty of top end even past 4000
mariobusalacch
Registered User
What's the scattering point? I heard its somewere in the 4000's right?
