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Old 06-11-2019, 03:23 PM   #1
thinair
 
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Promaxx Billet Rods

Has anyone used these yet? 4 bolts per rod seems different. What’s your guys opinion on these? Just looking at all the options for billet cummins rods.

Link: DX Billet Steel 3000+ HP Connecting Rods Cummins 6.7 and 5.9 - PROMAXX Performance Products
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94 12v. NV4500 Valair twin disc, Seth stage 4, DDP 5x14, 024 dv. Fass 260. T4 ATS. 362sxe. 150 ii springs.

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Old 06-11-2019, 04:07 PM   #2
Rich dzl
 
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The Rod price war is happening now .

Last edited by Rich dzl; 06-11-2019 at 04:08 PM.
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Old 06-11-2019, 04:44 PM   #3
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would be interesting to see the weight difference between these and d&j or wagler
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Old 06-11-2019, 04:55 PM   #4
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Pressure lubed wrist pin of the D&J rods are the only way to go in my opinion.
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Old 06-11-2019, 07:43 PM   #5
thinair
 
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Quote:
Originally Posted by kleann View Post
Pressure lubed wrist pin of the D&J rods are the only way to go in my opinion.
I definitely agree with that statement!
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94 12v. NV4500 Valair twin disc, Seth stage 4, DDP 5x14, 024 dv. Fass 260. T4 ATS. 362sxe. 150 ii springs.

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Old 06-11-2019, 08:24 PM   #6
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Only reason I bought them. And they are surprisingly lightweight.
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Old 06-11-2019, 08:33 PM   #7
Rich dzl
 
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For the money apex rods are hard to beat ..
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Old 06-11-2019, 09:20 PM   #8
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Not that I’ve built a 3k hp engine, but I would think with 4 bolts holding the cap on. ARP 2000’s are more than enough clamp force without the possibility of hydrogen embrittlement.
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Old 06-12-2019, 10:06 AM   #9
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Terrible marketing description, however they will probably sell
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Old 06-12-2019, 12:59 PM   #10
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Terrible marketing description, however they will probably sell
I agree. They are over selling it. I’m curious about the material also. Never heard of it.
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13.16 @ 104mph 1/4 mile

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Old 06-12-2019, 09:06 PM   #11
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People are going to have problems with the bolts and trash them, I'm sure.
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Old 06-12-2019, 09:07 PM   #12
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Quote:
Originally Posted by Rich dzl View Post
For the money apex rods are hard to beat ..
Yep
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Old 06-12-2019, 09:15 PM   #13
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Quote:
Originally Posted by Highwayman View Post
People are going to have problems with the bolts and trash them, I'm sure.
One of the big name tractor engine builders uses this same design, different material but two l19s per side. The 540light pro I help utilizes such n is problem free at over 3k hp
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Old 06-12-2019, 10:22 PM   #14
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Originally Posted by TheHammer View Post
One of the big name tractor engine builders uses this same design, different material but two l19s per side. The 540light pro I help utilizes such n is problem free at over 3k hp
They’re good, no doubt. There’s just a little bit of a stigma around that material (usually due to apparent mishandling). I run l19 bolts and a couple people have acted like I was using glass.


I like seeing “new” products come out, I just wish there were more people trying new things.
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Old 06-13-2019, 08:46 AM   #15
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Quote:
Originally Posted by Rich dzl View Post
The Rod price war is happening now .
Thank God!
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Old 06-13-2019, 01:45 PM   #16
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Wagler uses L19 1/2" bolts made by ARP.
Apex has two options: ARP made L19 7/16" or upgrade to ARP made 625 7/16".
Haisley's upgraded stock Cummins rod bolts are made by ARP and are 7/16" L19 material.
Carrillo uses 7/16" rod bolts not made by ARP with two material options.

Long story short, if you're afraid of L19 for an internal oil-soaked engine part that was produced in a controlled environment, you probably shouldn't leave your house in the morning because you're more likely to die in a car accident than suffer an engine failure due to L19 rod bolts....

Yes, I agree, the rod pricing war has begun!
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