Eagle Rods

Was looking around Al Gores inter web and saw Eagles 6.8" BBF CRS68003DL19 rod and noticed it is rated at 1500 HP. Is this correct or a typo ?
These do not give me a warm and fuzzy feeling when putting this kind of power into this rod.

Just thinking out loud here....thoughts here ??

I'm getting Olivers myself ...those give me a warm and fuzzy feeling

My Scat H beams are the cheapest parts in my motor lol. The next build will get something else, hopefully these will get get me through this season................

They're ok with the L19, or 2000 bolt upgrade.

Barney wrote:They're ok with the L19, or 2000 bolt upgrade.

X2,I'd be more concerned w/bolt than the rod.

Just because it's an L-19 bolt,,,,, imo, that doesn't make them good to 1500 Hp. And, I've got two engines with the Eagle 6.800" H-beam rods and the L-19 bolt upgrade. A 557 and a 503. Both are under 1000 Hp.

Charlie

P.S. Guys, I am editing this post because I forgot which rods were in Krisse's engine. We had Eagles when it was a 572" deal and made something like 1030 Hp. We now have Olivers in her 598" engine which makes 1100 Hp. IMO the cut-off point for Eagles is right at 1000 Hp.

I was stating with a bolt upgrade they are a pretty decent rod... A lot of guys are running that rod well over 1000hp with good results. Are there better rods out there? Absolutely... But they're a pretty good rod for the buck.

Lem's old saying fits...... "they are a lot better than they should be"

RPM & piston/pin wt. is a bigger factor than HP......i.m.o.

Lem Evans wrote:RPM & piston/pin wt. is a bigger factor than HP......i.m.o.

YES ... Equating RPM with ft/sec speed of the reciprocating weight certainly makes more sense than a horsepower rating.
That amount of stroke definitely makes a difference as to acceptable RPM level.

and lets not forget the effect of closing the throttle at high RPM unloading the piston...

Rods don't break rods. Builders and tuneups break rods.

Mark O'Neal wrote:Rods don't break rods. Builders and tuneups break rods.

its the driver!

cool40 wrote:

Mark O'Neal wrote:Rods don't break rods. Builders and tuneups break rods.

its the driver!

Yep

466cj wrote:

cool40 wrote:

Mark O'Neal wrote:Rods don't break rods. Builders and tuneups break rods.

its the driver!

Yep

A lot of my "complete engine" business is small block Ford and Chevrolet engines for competitive road racing and anytime a rod breaks clean, with no warning, in one of those engines it is most often on decel.

So what you are saying Randy, is the failure is because of separation, rather than torsional or compression damage?

schmitty wrote:So what you are saying Randy, is the failure is because of separation, rather than torsional or compression damage?

It appears so ...

Rods fail for a number of reasons, an yes often on decel and free rev such as a broken drive line part, or light load in a burnout box.

John Myrick wrote: Eagles 6.8" BBF CRS68003DL19 rod and noticed it is rated at 1500 HP.

c.evans wrote: IMO the cut-off point for Eagles is right at 1000 Hp.

As John has brought attention to an area of concern and Charlie has suggested a limit for the Eagle rod we discuss, I assume it would be appropriate for me to replace the Eagle rods in my 460, flat tappet FE as I approach 1100 horsepower! Maybe a GRP aluminum part?

Dave. ... ...

Wish everyone a joyous holiday, and a special thanks to our Armed Forces.

cool40 wrote:

Mark O'Neal wrote:Rods don't break rods. Builders and tuneups break rods.

its the driver!

I have never met a drive that admitted to anything...except winning.

Mark O'Neal wrote:

cool40 wrote:

Mark O'Neal wrote:Rods don't break rods. Builders and tuneups break rods.

its the driver!

I have never met a drive that admitted to anything...except winning.

i've never met a performance parts manufacturer who admitted to a bad part.

i've never met a performance parts manufacturer who admitted to a bad part.

rmcomprandy wrote: A lot of my "complete engine" business is small block Ford and Chevrolet engines for competitive road racing and anytime a rod breaks clean, with no warning, in one of those engines it is most often on decel.

Randy,
Obviously you've thought about this & tracked this issue quite a bit. Have you tracked the rod breakage to be similar in a drag racing situation? If so, what do you think is the cause - what would you say the driver could/should do or not do to prevent or reduce the rod breakage on deceleration?

Should the driver take all the load off the engine immediately by popping the transmission into neutral at the same time getting off the accelerator?

Or, leave the trans in gear and only lift from the accelerator?

Or,,,,, ??

StickBBF

don't just close the throttle at the end of a run, ease off slowly. What is going on is when you close the throttle you are causing a vacuum so the piston has nothing to compress against and when you pass TDC and the direction changes the piston wants to keep going up and the crank wants to go down and the rod is the monkey in the middle.

The piston not having nothing to compress against means that you are seeing the full force of the piston's inertia. To put it in math terms P = piston force, C = force pushing back from compression you have P - C = Total force. As you can see closing the throttle at high RPM is harder on the rods.

I've seen more than one engine scattered at the big end because the driver got off the throttle quick instead of rolling out of it and letting the RPM's fall.

"I had just pulled out of the water box" is another place rods/bolts often fail.

Lem Evans wrote:"I had just pulled out of the water box" is another place rods/bolts often fail.

most of the problems i've saw were the 10,000rpm promod burnouts.