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Author Topic:   Eagle rotating assem
Dirt Full Roller

Total posts: 53
posted September 12, 2005 05:40 PM  
Hey looking to buy an Eagle rotating assembly and was just wonder if anyone had any pros or cons I have heard alot of bad stuff about the scat stuff looking at the competition series..

Dirt Forum Champ
Total posts: 874
posted September 12, 2005 05:54 PM  
They are just like everything else, as long as everything is checked for size, roundness, and put together right, it will last you a good season. Keep an eye on the crank, have it crack checked every year. Scat 9000 Cranks hold up well in IMCA claim stuff, you just have to replace them once a year, or at least have them checked over well.

Dirt Freak

Total posts: 390
posted September 12, 2005 05:59 PM  
a friend of mine runs the eagle rotating *** in his late model he is pushing 600 horse

nine finger
Dirt Forum Racer

Total posts: 76
posted September 12, 2005 07:36 PM  
dont exspect a 400 dollar crank to do the job of a 1000 dollar crank. for the lower end they are not a bad deal.

Dirt Full Roller

Total posts: 53
posted September 12, 2005 07:42 PM  
What about there 4340 h-beam rods good bad average? The kit i am looking at has a 4340 crank and 4340 rods with je pistons and all that good stuff.

sc1 racing
Dirt Freak

Total posts: 419
posted September 12, 2005 08:40 PM  
eagle is ok for a low buck engine but the key to eagle or anything to survive are plenty of clearnces and ballancing.

Dirt Freak

Total posts: 205
posted September 13, 2005 10:45 AM  
Balancing...balancing...balancing. 8100-8200 and 90 psi and shes good..

Dirt Full Roller

Total posts: 65
posted September 13, 2005 12:27 PM  
eagle is good for the lower end stuff,the topend is what builds horsepower,the bottom end is the foundation and i said eagle is good for the lower end stuff(600hp) and you gotta check it all out every year,as well as change the rod bolts every year.keep on top of it and it will last a little bit.get a good balance job it will go along ways.dont expect it to be as good as callies,dyers,ect..

the king
Dirt Full Roller

Total posts: 46
posted September 13, 2005 01:57 PM  
the eagle 4340 stuff will be ok, unless your pushing 650hp plus (thats 650 real horsepower-not "wish list" horsepower).
i would also limit compression to 14:1 and rpm to around 8000, maybe a little more on occasions.
this discussion has been on here many times with varying opinions of quality and value for money. the most common causes for any engine failure are poor preperation (balancing etc.), poor assembly, and the most common - poor tune up.
even the best components can (and will) break if not prepared, assembled and tuned properly. the cheaper stuff will obviously have limitations, but for most budget orientated racers (like myself) the "lower end" stuff is adequate.
we have got a scat9000 series crank running around in a "limited" sprintcar at the moment with no problem and i'm still on my first 4340 scat crank in my open late model after 3 seasons. i accept the day will come when these have a problem, but in the mean time these have done plenty of racing.

Dirt Forum Racer

Total posts: 94
posted September 21, 2005 06:11 PM  
I have a 383 ESP eagle assembly running at 13.5:1 and have no problems. The engine is two races short of two full seasons without being freshened. Only run about 6400 rpm with a 350cfm carb. I feel real fortunate to have gotten this long out of it.

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