What is it doing that makes you think you have rod problems?
Any recent mods leading up to the symptoms?
Put the truck back to stock and see if the motor cranks over longer before starting than it did when it was new (easy test for possible low compression)
What are you injecting other than diesel?
e. all of the above
-Liquid in the motor that isn't injected in a very fine mist/spray or in gas form will give you problems.
-Too much timing from agressive programming and too much propane can give you problems.
-Too much timing from agressive programming and and too much methanol can give you problems.Edited by: mtomac
I'm thinking you have an injector problem. Get the balance rates checked with a tech II or a Predator. At idle in park they should be -4mm3 to +4mm3. At idle in gear (foot on brake) they should be -6mm3 to +6mm3. The ones out of range are most likely the bad ones.Edited by: mtomac
well we have not taken the heads of just yet but one of the cylinders is down on compression the rest had about 385 and the one has 300 we think it is a rod but do not know for sure till we get it apart it still runs fine no knocking it just has a mis at idle and white smoke checked the injectors seem to be fine.If the rods are the problem I don't think the no2 is the problem I think the rods can not hold up with 750 hp.I am spraying a lot of n20 I make 528 on motor and the rest on n2o.
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