anyone experiencing failures with scat/eagle/e-bay con rods?
 

The price ranges 250-300 for these sets of h-beam rods. All claim to be forged, use ARP bolts and are weight matched.

Anyone have concerns, or have reported failures for any of these in an approx 250 rwh; 7500 redline; roadrace application?

no.

/thread.

Lock it then :D

Thread ended strikes again!

I've seen two broken scat/ETD/m-tuned rods, both directly due to rod bearing failure.

Hahahahaha, ^ that grammar is atrocious.

:laugh:

I have them in mine at 252 whp, 15 track days, no issues. Haven't heard of any issues with them at even more hp, just not as lite as the Carrillo rods, as they weigh within a gram or 2 of the stock rods and they do have ARP rod bolts and very closely matched weight wise..

Mine were balanced to the gram although I didn't weigh the ends individually. Totally adequate for anything except the most extreme builds IMO. :party:

Care to translate for us gringos?

I ran them 4 years at 250whp.

most rod failures are because of improper torquing of rod bolts, not because of the rods them selfs. if you have any doubts about the rods, then dont buy them. Get some carrillo rods. With the low budget stuff i would have the machinist check the big end, i have heard of eagles needing to be recon'd right out of the box. But like i said, torquing is the big thing to get right. Use a stretch gauge and have no worries

I haven't heard of any issues with the rods. In what way did they need reconditioning? I'm curious. Why didn't they just have them replaced by the seller?

I have not seen a H beam break through the beam of the rod.

I have seen spun rod bearings, and pounded out wrist pin bushings.

I can not think of a set out of the box balanced to the standards I use. But they are normally close.

Dale Do you believe the spun rod brgs and wrist pin bushing problems were the rods fault or an improper asm. process or tune?

The wrist pin bushing, was from the wrist pin breaking in 2

The spun rod bearing, was from abuse, not the rods fault.

I experience failure constantly and I don't own any of these rods. Perhaps I should buy a set and win at things?

I had the cheapest ones on egay and they were just fine. im getting them again actually.

I don't remember who, but I thought I remember reading that someone found the markings on their egay rods were the same as the brand-name ones.

The grammar is so bad that the only sense I could really make of it was "if you can see this image, you have been visited by the ghost of poverty"

Still laughing.

Today we learn about Google Image Search.

You can search google with that image as an input instead of some words.

I have no idea if this link will work the way I think it will.

Manténgase fantasma pobreza segura.

From what i understand, all these eagle/scat ect "H beam" rods are made in the same factory overseas. I have heard that even Manley rods are made in the same factory but to different standards.

Wow, I thought that this was locked.

Just didn't want to overspend on something that wasn't the weakest link. If the eagle/scat/e-bay rods will do, then I'll be happy not to waste $ on overbuilding with carrillo.

I doubt $ spent on lighter rods would give much performance bang-for-the-buck for a turbo motor, or a motor with such a low rev limit.

I think that on a road course, spun rod bearings are usually due to downshifting abuse. But, could also could be due to detonation loading.or oil pressure losses with cornering.

Anyone have a story?

Detonation bends rods or melts pistons. If you spin a rod bearing, you ran the motor low on oil or overrevved it.

Sorry, I guess I'm more familiar with V-8 racemotors. In a SBC, timing that exceeds about 38 degrees total will cause too much pounding for the rod bearings to survive on a road course; great for sprints and drags though. It sounds like the mazda bearing surface will hold enough load to bend a rod before it fails... that's one tough bearing!

many of our members will hold enough load to bend a rod too

He speaks from experience.


____________________________-

I did a lot of searching for this once upon a time and was able to feel pretty confident about the evidence I found. I posted this in vlads build thread too but if you'd like some peace of mind

They appear to all be the same rods. Eagle, Belfab, M-tuned, ebay stuff....

https://www.miataturbo.net/miata-par...rods-fs-52944/
CRS-5230 is the product code stamped on all of them.

Based upon the first couple of posts, I purchased a set last Monday.

Q: Are any of you adjusting the bearing clearances for race applications? Or, are you just measuring the crush and applying the standard OEM specs?

Based upon the last couple of posts, I figured Hustler for that visual... not 18 P ...

Yea...Hustler is starting to rub off on some of the other members.....

lolz

I just used plastic gage and kept it on the more clearence end of the stock specs.

Yet we keep banning people for it, lolol.

Forum Entrapment