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Old 01-15-2013, 08:36 PM   #1
Maxwell Power
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Thumbs up NEW Manley H-Tuff Rods compared to other rods

Manley has responded to the needs of the market by creating a new, stronger h-beam rod and we very excited to start using the new rod once it is available to the public. Our Power Factor SS shortblock will be using these rods as the new standard length h-beam rod which means phasing out of the MPS Budget H-beam.

Currently the plan for the new 'H-Tuff' rod is that it will be released in a few months. It should cost a little more than the current h-beam rod. The new rod is quite a bit heavier than the old rod so the choice will still be there to use either rod for builders. Some will prefer the lighter weight of the old rod while some will prefer the size of the new rod. I prefer the bigger size.

I ran some dimension comparisons to other rods available on the market that we use here at MPS. All in all, the new Manley rod is what I would consider the best bang for the buck hands down.

Comparison:
Since I lack the ability to perform destructive testing on these rods, I can only resort to measurements. So I performed a bunch of measurements and put them into a spread sheet. Obviously there is more to a rod than just the measurements, like material quality, but geometry does matter.

I measured the main beam in multiple locations. Since our Super H beam had a lot of taper to it, I wanted to be able to represent that. Starting at the small end I measured the thickness 10mm, 40mm and 70mm in an effort to portray a "profile". I also measured the thicknesses of all the legs of the "H" in the beam, the big end cap thickness on centerline, the small end, and the thinnest point of the big end where you see rods fail from high rpm. I don't think there is much more that I could have measured that would have been beneficial for this comparison.

All in all, the data shows that the new H-Tuff is a serious rod and I look forward to seeing just how serious it is.

Just to cover a few things again:
The rods are not complete. This is a pre-production rod that was given to me by manley so that I may see the new forging. The final rod will also be available with 625+ rod bolts.
Also, these are not scheduled to be released until March. Super Storm Sandy affected most of the east coast including New Jersey where Manley is located. Had that not occurred, these would probably be available now.
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Last edited by Maxwell Power; 01-16-2013 at 02:00 PM.
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Old 01-15-2013, 08:36 PM   #2
Maxwell Power
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Now the pics:









Last edited by Maxwell Power; 01-15-2013 at 09:30 PM.
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Old 01-15-2013, 08:43 PM   #3
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Can't wait to see the data
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Old 01-15-2013, 08:46 PM   #4
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just did a search online and they are in the new Manley catalog. So I guess I'm posting data and pictures in a minute.
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Old 01-15-2013, 08:48 PM   #5
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So I was planning on using your budget H beam rods for my build in the next month or two. Are you still selling them or should I wait for these new rods? Any ideas on the price I'm guessing $450-500 range.
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Old 01-15-2013, 09:17 PM   #6
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Quote:
Originally Posted by wantsti View Post
So I was planning on using your budget H beam rods for my build in the next month or two. Are you still selling them or should I wait for these new rods? Any ideas on the price I'm guessing $450-500 range.
Both rods will handle more power than the factory case can hold without sleeves.

I still have a lot of the MPS Budget rods in stock and the Manley rods aren't available yet. When they are available, I'll be using them when I'm out of budgets. Both rods cost the same. So I don't see a reason for me to continue carrying both. Plus, I don't want to have to have my own rods made forever in STD length. I've only been doing it because I didn't feel any of the rods around $500 were strong enough to be offered in our engines. My budget rods have only had one failure and that was at 622whp on a mustang dyno when two rods folded simultaneously.

I am very excited to see a shelf rod option for $500 that I don't have to have built. My +2mm and +4mm rods are still going to be produced. Very soon I'll be offering a $500 +2mm rod with my engines again. I had to stop offering a budget +2mm rod because the process was changed and I didn't like the new design. They obviously had changed it to lower cost and sacrificed quality. Now thanks to Manley, I'll have a new rod to fill the hole... er gap..... in my product line.
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Old 01-15-2013, 09:38 PM   #7
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So everyone always talks about power when it comes to rods, but what about speed? You mentioned the big end of the rod being a weak point at high RPM. For my current build I'm only looking for low 400WHP, but I'd like to be able to spin it to 8K RPM. How do the two Manley H-beams compare to the I-beam as far as high RPM use is concerned? It seems that the I-beam still should be the best, but how will these H-beams handle an 8K redline?

Thanks for the info!
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Old 01-15-2013, 10:02 PM   #8
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The new h beams are going to handle 8k no problem. I've seen the normal h beams run to 7800 and that engine had around 20k on it.

Last edited by kakarot09; 01-15-2013 at 10:14 PM.
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Old 01-15-2013, 10:10 PM   #9
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Can you add a squirter to the big end of your rods? Or do those not make much difference?
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Old 01-15-2013, 11:24 PM   #10
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Wait...budget +2mm available again? That is what I want to hear more about
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Old 01-16-2013, 03:22 AM   #11
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Quote:
Originally Posted by Maxwell Power View Post

Both rods will handle more power than the factory case can hold without sleeves.

I still have a lot of the MPS Budget rods in stock and the Manley rods aren't available yet. When they are available, I'll be using them when I'm out of budgets. Both rods cost the same. So I don't see a reason for me to continue carrying both. Plus, I don't want to have to have my own rods made forever in STD length. I've only been doing it because I didn't feel any of the rods around $500 were strong enough to be offered in our engines. My budget rods have only had one failure and that was at 622whp on a mustang dyno when two rods folded simultaneously.

I am very excited to see a shelf rod option for $500 that I don't have to have built. My +2mm and +4mm rods are still going to be produced. Very soon I'll be offering a $500 +2mm rod with my engines again. I had to stop offering a budget +2mm rod because the process was changed and I didn't like the new design. They obviously had changed it to lower cost and sacrificed quality. Now thanks to Manley, I'll have a new rod to fill the hole... er gap..... in my product line.
On the first part.... there are 8 second cars on factory cylinder liners.
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Old 01-16-2013, 01:16 PM   #12
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That does not mean EVERY factory liner will hold that kind of power.
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Old 01-16-2013, 01:57 PM   #13
Maxwell Power
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Quote:
Originally Posted by tja1618 View Post
So everyone always talks about power when it comes to rods, but what about speed? You mentioned the big end of the rod being a weak point at high RPM. For my current build I'm only looking for low 400WHP, but I'd like to be able to spin it to 8K RPM. How do the two Manley H-beams compare to the I-beam as far as high RPM use is concerned? It seems that the I-beam still should be the best, but how will these H-beams handle an 8K redline?

Thanks for the info!
8k is no issue. I run 8800 on our budget h beams all the time and they are only 13g lighter. I can't see the Manley having an issue. When I get a completed set, I'll be running them hard.

Quote:
Originally Posted by wantsti View Post
Can you add a squirter to the big end of your rods? Or do those not make much difference?
I try to add squirters to all my rods. I think they are very important. OEM manufacturers don't put parts that aren't needed into their engines. The OEM rods have squirters.

Quote:
Originally Posted by aboothman View Post
Wait...budget +2mm available again? That is what I want to hear more about
They aren't going to be available until May, June time frame. There's a lot of things that have to be done production wise to get these going.

Quote:
Originally Posted by ckyguy68 View Post
On the first part.... there are 8 second cars on factory cylinder liners.
It's rare and uncommon. There are many blocks that fail waaaay lower and slower than that. I hear it is even more common with the new 704 castings, but I haven't seen it first hand. In addition, the cars that can put that kind of power down on the factory sleeves are 100% detonation free as they are running race gas. Race gas has a slightly slower, very much more controlled burn with extreme detonation resistance. This means a smoother curve for cylinder pressures and less abuse on the liners. Pump gas powered engines are subjected to violent and hostile environments in the cylinders. In nearly all cases, an engine will last longer on race gas than pump gas; even when making 20% more power.

Quote:
Originally Posted by aboothman View Post
That does not mean EVERY factory liner will hold that kind of power.
That's the truth.
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Old 01-16-2013, 03:16 PM   #14
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Do you have the total weight and pin/big end weights?

I'd heard of these through a beta-tester shortly before x-mas but he didn't have a scale.

Regardless, it seems like a nice and cheap rod option for the platform.
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Old 01-16-2013, 03:24 PM   #15
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174.3/393.8 according to the box.
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Old 01-16-2013, 03:29 PM   #16
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I can't wait to get my hands on these. They are going to be a game changer in the connecting rod department.

Adam
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Old 01-17-2013, 11:41 AM   #17
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Dom would you mind posting a picture comparing the H tuff next to a stock EJ257 rod? or stock vs Manley H vs Manley H tuff?

We are hearing 3 weeks ETA for production units.
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Old 01-17-2013, 12:21 PM   #18
Maxwell Power
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sure. Give me a few minutes
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Old 01-17-2013, 12:50 PM   #19
Maxwell Power
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here you are:



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Old 01-17-2013, 01:21 PM   #20
wrxsubiemod
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Ow wow
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Old 01-17-2013, 01:26 PM   #21
No Limit Motorsport
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Oh damn, you knocked it out of the park. Thank you.

Loving that custom rod. It looks like it is leaning over to throw up after a night of drinking ethanol.
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Old 01-17-2013, 01:50 PM   #22
Maxwell Power
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Loving that custom rod. It looks like it is leaning over to throw up after a night of drinking ethanol.

oh that rod was just cruising down the highway when it decided to bend itself.... says the teenage customer.

It's a rod for stroking the BRZ and getting around the cylinder liners
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Old 01-17-2013, 02:15 PM   #23
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*Edit* Yep I'm an idiot today. Fml

Last edited by Matty_STi; 01-17-2013 at 02:44 PM.
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Old 01-17-2013, 02:27 PM   #24
Maxwell Power
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That rod is incredible looking!! How many hours of work did it take to come up with that design?

Matt
It was easy. I just swapped in a new block for a customer and let him drive it on a break in map. He was very interested in how our rev limits worked. He didn't realize that when the tach stops at 5500rpm it doesn't mean that the engine has stopped accelerating even though he continued to downshift while going down the highway...
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Old 01-17-2013, 02:41 PM   #25
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Quote:
Originally Posted by Maxwell Power View Post

It was easy. I just swapped in a new block for a customer and let him drive it on a break in map. He was very interested in how our rev limits worked. He didn't realize that when the tach stops at 5500rpm it doesn't mean that the engine has stopped accelerating even though he continued to downshift while going down the highway...
Oh. Lol

My sarcasm filter is broken today. And so is my reading comprehension. Time to take a mulligan on today. Lol.
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