That sounds like a rev limiter to me?? Was that not at 3500-3600 or somewhere in there?

 

Yes when the smoke turned black about mid trac I laid in to it and they jumped up to 3500+ . On the vid you cant here it but its cutting when I first took off

 

That's what my truck feels like when it does this--almost just like a rev limiter at 3200 rpm, especially in 2nd gear. There's a guy on cumminsforum thats having the same problem.

 

rods what turbo are you using and what sticks? PM me if you dont wanna post it but my truck has never smoked like that with the big sticks and a 66mm...and i recently switched to a redline, same thing, no smoke. im beginning to wonder if its something wrong or maybe i do have just the right combo.

 

You wont smoke with M6 done been there , now they are a good stick but they have there own purpose IMO . If your making 50+ with them you should be fine on the road/dyno and looks like u have a HO ? Smoke is funny thing some like it some dont and it has a purpose to depending on application IMO

 

Mine pops and shutters like a rev limiter. It just has a ton of power and smokes like a train. I still am very ify about the dyno tune because justin at quad told me "Its still being refined some. DO NOT drive around with this tune. It has the potential to cause some undesirable symptoms, it may run the pump out of fuel if your not careful." that was the whole email he sent me in regards to it.

 

Does it pop and shutter at te reve limiter say 3300 or so and up or anytime you are driving it?

 

I'm pretty sure it's only at WOT but I'll go for a drive tomorrow and test it out again to make sure.

 

WOT could be 1000rpm, 2000rpm etc. I have never had a box do this when it is not at the limiter.

What you are hearing is just the rev limiter. We are just fueling so hard it bounces off and startsa fueling then bounces off again it happens really fast.

That is easy to stop as well though.

 

i didnt know these trucks had a rev limiter

 

It is more like a fuel limiter but, yes, they have one.

I have been unable to do totally defeat it without killing the truck or setting all sorts of codes. I hit 4211 rpms yesterday but, it killed the truck afterwards.

 

How do defeat the fuel limiter??????

 

thats good enough for me I shouldnt ramp past that depending on application

 

Tested some more.

At WOT in 2nd gear it will do it a 3200 on the mark every time. 3rd and 4th won't do it at WOT but will do it around 2900 and up under moderate throttle.

This is with the 2000 tune.