Stock Rod Limit

[LeonBorden]

Sounds to me like he was just expressing just how many parameters this ECU referenced and how complex tuning it correctly was.

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[Juben]

Sounds to me like he was just expressing just how many parameters this ECU referenced and how complex tuning it correctly was.

Same here.

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[TheZman]

Me too! I was too poor to afford a Mustang like I wanted in my late teens/early twenties, so I got into DSMs. You could make them wicked fast for next to nothing and hurt almost any V8s feelings that you wanted to. Over those years, I didn't lose my love for Mustangs or V8s, but I gained mucho love for turbo 4s and surprising the pants off of people when their big, scary V8s got outran by a little fire breathing 4 banger, lol. It was just a lot of fun to me and I made a lot of friends over the years with those cars.


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You need to understand tho there is alot of guys that just dont get that concept. I was sort of one of them believe it or not! I always owned V8's. Matter of fact my first Turbo car was the New Focust ST and then ended up buying a 13 WRX hatch because the ST's interior center panel design kept digging in my right leg and drove me nuts. I got rid of my 2007 300 SRT8 for the ST.. But those two Turbo cars impressed me alot especially once they got a tune. The WRX was stupid quick with a good tune! Once i saw the new Mustang Turbo i knew the aftermarket would be a Giant for this car and i jumped on it! Could i have got the 5.0 yep! But finances would have been tight and i like my other toys to much to get rid of them just so i could get it! And i knew with just a Tune id be right there with the v8 anyway! Plus i saved about $6k and have much lower insurance cost and better gas mileage! Its a Win, win win..The nice thing about Turbo performance cars that have a huge aftermarket is that over the years as you go along and save money the Tuning companies will have some pretty big mods out that you can always add here and there when you can afford them and in the end have a pretty fast car! And buy then they will have all the bugs worked out of this engine and know exactly what it needs for Huge safe power.. Its very addicting!

 

[mbreinin]

The rods are not light and thin, they are powder metal cracked rods and trust me they wont bend, they will snap like a toothpick once they see any signs of detonation under boost.

I've been dealing with these same rods for almost 15 years in the Ford Lightning and one thing that takes them out is high load and detonation. It doesnt come down to a power limit persay.

Case in point, a stock block Ford lightning that is supercharged will snap its rods running a larger then stock supercharger at higher boost because that larger supercharger has a bigger "hit" when the boost comes in. Now take that same truck and put a turbo on it. That power comes in much easier and doesnt have such a "hit" so the rods last longer. The fastest stock block Lightning ran a turbo on the stock block to power levels unheard of with a supercharged Lightning.

Its detonation that kills these rods, plain and simple.

JJ

Makes sense considering the windowed blocks.

Mike

 

[greg hazlett]

Even though the OP said in post 95 there were no signs of detonation...

 

[mbreinin]

Even though the OP said in post 95 there were no signs of detonation...

Well, you don't always hear it. Not sure if they were monitoring knock with the logs.

 

[greg hazlett]

True

 

[greg hazlett]

Are taking a shot at SCT?.(if you werent I apologize but it seemed that way to me). So far some of the fastest cars (ours included) are SCT Tuned. Mid 12's is already proven with SCT tuned cars with simple bolt ons. I havent seen a single Cobb tuned vehicle in the 12's, if so please enlighten me.

Also is yours a loaded or unloaded Dynojet?

JJ

Maybe I missed it but what was your best time and what mods on the EBM for the time-pump gas, weight reduction, tires?

 

[limequat]

Even though the OP said in post 95 there were no signs of detonation...

...on the plugs.

If it only happened once, not sure there would be.

 

[Biffosaur]

But again... Did the rod itself break, or did the rod bolts?

This.

It sounds more like, imho, you spun a bearing.

I would be extremely surprised that the rod let go at such a low level compared to stock...

Pictures please:headbonk:

 

[mbreinin]

This.

It sounds more like, imho, you spun a bearing.

I would be extremely surprised that the rod let go at such a low level compared to stock...

Pictures please:headbonk:

It windowed the block. The rod snapped in half.

What I find so interesting, is the resistance displayed to the notion that these engines are not bulletproof.

I know for a fact that RIP's car was not the first to have a rod fail.

If you want to make good power with a stock bottom end, be prepared for the risk of failure.

Mike

 

[TheZman]

It windowed the block. The rod snapped in half.

What I find so interesting, is the resistance displayed to the notion that these engines are not bulletproof.

I know for a fact that RIP's car was not the first to have a rod fail.

If you want to make good power with a stock bottom end, be prepared for the risk of failure.

Mike

Who had the other cars that Failed??

 

[Biffosaur]

It windowed the block. The rod snapped in half.

What I find so interesting, is the resistance displayed to the notion that these engines are not bulletproof.

I know for a fact that RIP's car was not the first to have a rod fail.

If you want to make good power with a stock bottom end, be prepared for the risk of failure.

Mike

I get that it windowed the block.

I'm not implying these engines are bulletproof by any means. What I do not believe is that the rods simply failed from the load of the engine making 420 odd lbft of torque. It is much more realistic that there was an overload event such as a seized bearing or detonation which caused the rod to snap.

I would really just like to know the root cause of the rod failure.

 

[EcoSwag1990]

Who had the other cars that Failed??

There was a pic posted of one blown way back in like November but we never found out who did it

 

[JJ@WMS]

I would really just like to know the root cause of the rod failure.

Detonation. Period

JJ

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