So, 2 days ago, my motor got over-revved. I am now following the tow truck. A rod exited the block. I was headed down a hill, I came into boost in 4th and around 10psi and 4000rpm, the motor studdered and died. The road and car behind me were covered in oil. There was no detonation. I will post up pictures later. I'm on my blackberry and I've been up all night.

 

 

 

ouch. that sucks. Time for a build?

 

I assume those are stock rods... just in time for the $299 special.
Do you have a dyno graph... or just tell us how much torque the 2860 is making for you.

 

Yep. Stock. I don't know an exact number. Enough to go 12.6@112. I'm guessing 280wtq.

 

Did the motor actually spit the big end of the rod completely out of the block? Don't see that one to often.

 

:/

Any estimate as to how high you overreved?

 

This kind of thread kinda bothers me in a way. I've accidentally made the 2 -> 1 shift on two occasions. Wasn't logging either time so I don't know exactly how high I went, but it sounded interesting. And yet I still haven't expelled any rods through the side of the block. I can infer from this that either it was a really good day in the Osaka factory when my stock rods (and rod bolts) were made 18 years ago, or I'm a ***** and don't push my engine hard enough.

 

That sucks, Wes. I have a complete 99 long block (minus throttle body/ iacv) in New Albany if you are interested.

 

Yep, boost in, rod out. Hopefully i can get pictures of the block. It's fucked as well as the oil pan. There is a gash that i (from what i can feel) goes from near the bottom of the oil pan to as far as i can reach behind the starter. Maybe a 5" long split.

Well, i let someone else drive the car. but it was an all out 1-2-1 so whatever going from 7krpm in second to first is. Maybe someone with a gearing chart for the 6 speed with 4:10's can tell us.

Yeah, i wish you the best of luck. As soon as it got overreved, i knew that something bad was going to happen. Why i decided to go 1.5hrs away and race ppl, i dont know.

Hmmm, i may be interested in the head/intake. I have a bottom end already.

 

 

 

god damn man that **** will buff out . Im sorry to here about your loss man.

 

Final drive ration for 6 speed with 4.10 is
1st = 15.416
2nd = 9.3029
So assuming he dropped the clutch back in first at 7K and no lose of speed occurred during the "perfect" shift
15.416/9.3029 = 1.657 overdrive * 7000 = 11599 RPM

 

Well, there we go. revving to 12k will make your motor pop. Who knew?

 

So, the rod bolt is mostly in tact. Does that seem strange to anyone else?

 

maybe thats the fail point maybe it backed out and your rod and piston floated freely untill the crank came around and well the ignition..... idk just a thought, well time for the build, sorry about the loss there

 

Wow! Sorry to see that! Good luck in the ensuing project!

 

Isn't it such a great sound hearing your rod go through the block and pan?

In for many pictures when you get it out.