I can state for a fact that the head on Reece's car was in fact NOT ported. It was a stock head w/ upgraded springs and retainers.

The piston was missing a small piece at the valve relief on #4. I highly doubt this was due to meth, but rather aggressive timing and a lean AFR which leads to high EGTs. Add in some detonation which was apparent from knock counts... and you end up with pistons missing pieces.

The fact that there were numerous bolts missing and a general lack of attention in the initial build doesn't help the situation. Overlooking to seal the valve cover around the caps lead to a nice leak there. A motor build is about paying attention to details, and some were definitely missed in this build. In order to remove the head studs, I had to use a 4' long piece of pipe on the breaker bar to break them free. Anyone who has met me knows that I'm not a little guy and I definitely can carry my own. Things like that make me question the build.

 

Thats definetly not it... i personally know at least 10 people who have been running m15 nozzles for over a year with 15+

I was running a ton too when my motor had 0 wear.



From what this guy said when he went to retune it to get rid of the knock he pulled back timing. This is just a possibility, I dont know what the map looks like, but without enough timing thatll cause egt's to go up and coud cause a problem. I wouldnt count on that since DTM has a good repuation and from the amount of cars on here tuned by them they definetly have the experience.

Cheers!

 

PM me the customes name and ill find out if we did in fact do something for him. We get calls all the time from people who sell stuff , saying we did the motor / worked on the car ..and we had not.

As far as the piston goes, it broke from detonation... That is the only thing that would crack it. I would pull the file.. chances are you will see alot of timing.

Mark
Turbotrix

 

FOR the record, since there seems to be some confusion, the only work that TurboTrix performed was the porting(yes, it was ported, whether it was changed out after the car was released from Brandon's hands or not I do not know) and assembling of the head. The rods/pistons/bearings were also purchased from them, but not installed by them.

 

still waiting on pics that reece said that nick was going to post.

 

I said I will try to get him to put up some pics. He is rather busy you know, putting my engine together and such...

 

Ben, how could the head have been "changed out" after I purchased the car from Brandon?

 

Its easy, you take out all the bolts, drain the coolant, remove hoses, turbo etc....

You see where I'm going with this.

I know for a fact the head that I put on that car was ported when I put it on. Maybe you don't have morphing injectors you have a morphing cylinder head

 

If you lost a chunk of a piston any normal motor head would have noticed "something" not right immediately.

I agree with turbo trix that detonation was the cause of piston failure but the cause of detonation could be a hundred different things.....

Bad pump gas, restricted meth flow, overboost situation, ect....

 

Absolutely incorrect. I've seen numerous engines that have run OK with pieces of ring land missing. The only sign those motors gave of something being amiss was smoke out the tailpipe on startup. That is something you might not notice if you were hopping into the car for a drive. It all depends on HOW the piston has broken up and where. Hell, one engine I disassembled was missing a full 1" piece of ring land and still idled and drove OK. Granted that particular engine was a 6G72 and I can only surmise that the additional 2 cylinders helped mask the fatal damage.

In Reece's case, he had a small chip on the crown around one of the valve reliefs disappear. The motor would have probably held up for a while at the power level he was at. Had we installed the turbo kit he purchased on that motor though, it would have probably blown up on the dyno or shortly there after.

 

Idling and driving ok is one thing. I'm sure this car was driving to more than church on Sunday. Either way good luck with the hunt.

 

It would be almost impossible to figure the cause without recent logged info or sign of failed components (i.e., melted pump, failed spring, )