Anyone use a Main Bearing Brace?

Dubstep Shep

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So I've been reading through Sean Hylands book on the modular motors, and I have a question about a part he recommends.

They make a brace that connects all the mains together and to the block via the oil pan bolts.

To me, this seems like a fantastic idea. Not only does it brace the block, but also the mains. The only downsides would be cost, installation, and having your oil pan sit down a bit further.

Anyone used one? I'm beginning to do research for my over the top motor build, and this seems like a worthy addition.
 

07TGGT

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Why don't you invent one with all your wisdom and theories, oh wait, actual experience is required...
 

19COBRA93

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The mains on these engines are so ridiculously solid that main supports are completely unnecessary. Even on big HP, high RPM builds.
 

psfracer

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The mains on these engines are so ridiculously solid that main supports are completely unnecessary. Even on big HP, high RPM builds.


I agree. This is used commonly on blocks that have 2 bolt mains. The mod motor has 4 bolt mains + 2 cross bolts in the mains. I don't see what difference that support system would make on a mod motor.

A GOOD oil pan with a good windage tray for oil control--now that is definitely worth your time in researching further for your build. Not only to reduce parasitic loss, but for just engine longevity at high rpms.
 
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702GT

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A GOOD oil pan with a good windage tray for oil control--now that is definitely worth your time in researching further for your build. Not only to reduce parasitic loss, but for just engine longevity at high rpms.

What's wrong with the OE oil pan/windage? Asside from the benefit of having a higher oil capacity.
 

Department Of Boost

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The mains on these engines are so ridiculously solid that main supports are completely unnecessary. Even on big HP, high RPM builds.

I agree. This is used commonly on blocks that have 2 bolt mains. The mod motor has 4 bolt mains + 2 cross bolts in the mains. I don't see what difference that support system would make on a mod motor.

I talked with a few people about this. And DSS does not sell it as a “cap enhancement”. They don’t claim anything really. There is antidotal evidence that it keeps high frequency harmonics out of the bottom end though, which could be one of the causes of shattered oil pump gears.

I figured it was cheap insurance.
 

psfracer

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I talked with a few people about this. And DSS does not sell it as a “cap enhancement”. They don’t claim anything really. There is antidotal evidence that it keeps high frequency harmonics out of the bottom end though, which could be one of the causes of shattered oil pump gears.

I figured it was cheap insurance.

IF that is true then it would be at least worth looking at. But a good ATI damper along with TSS billet gears should solve that problem, no?
 

psfracer

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What's wrong with the OE oil pan/windage? Asside from the benefit of having a higher oil capacity.

Depends on the application. Nothing wrong with it for daily use. For a 1200+ drag racing application, maybe not.

Oil control is one of the most important aspects for a high rpm race motor.
 

crownaviation

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so which ones are the best? Moroso? I have been using OEM forever but changing my setup to full kill and I am a sucker for shiny things
 

Department Of Boost

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IF that is true then it would be at least worth looking at. But a good ATI damper along with TSS billet gears should solve that problem, no?

I run a ATI. I think any good motor should. I do not have the TSS gears though. When I did my shortblock they were just coming on line and I didn't know it was an issue. I'll put them in the shortblock I'm building now.

The MSS was cheap, I figured what the hell.:thumb:
 

flyfaster1

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So I've been reading through Sean Hylands book on the modular motors, and I have a question about a part he recommends.

They make a brace that connects all the mains together and to the block via the oil pan bolts.

To me, this seems like a fantastic idea. Not only does it brace the block, but also the mains. The only downsides would be cost, installation, and having your oil pan sit down a bit further.

Anyone used one? I'm beginning to do research for my over the top motor build, and this seems like a worthy addition.

Look into the JPC piece.. for a big bore Boss build, otherwise, and like has been said- above, its not necessary with the stock block.
 

psfracer

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so which ones are the best? Moroso? I have been using OEM forever but changing my setup to full kill and I am a sucker for shiny things

From what I understand the stock one is really good.

Don't mis understand me, everything is relative. For a normal setup the stock pan/tray is good.

However, IF I was building an all out Mod motor that I planned on racing, the stock oil pump gear set up right off the crank always made me nervous. A few times I have seen people make a pass, the oil gears go out, by the end of the pass the bearings are wiped out.

I would run an external oil pump that is also a vacuum pump, with a wet sump pan. Then if you are really high dollar, a dry sump set up. But, once again, for all out drag racing. Oil control is key, and there is a lot more out there vs just a factory pan and tray. Just sayin'

http://www.bridgeracing.com/twin_turbo_299ci_mod_motor.htm

Psst MMR has a set up to.....
 

Department Of Boost

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Don't mis understand me, everything is relative. For a normal setup the stock pan/tray is good.

However, IF I was building an all out Mod motor that I planned on racing, the stock oil pump gear set up right off the crank always made me nervous. A few times I have seen people make a pass, the oil gears go out, by the end of the pass the bearings are wiped out.

I would run an external oil pump that is also a vacuum pump, with a wet sump pan. Then if you are really high dollar, a dry sump set up. But, once again, for all out drag racing. Oil control is key, and there is a lot more out there vs just a factory pan and tray. Just sayin'

http://www.bridgeracing.com/twin_turbo_299ci_mod_motor.htm

Psst MMR has a set up to.....

As much as I would like to run a dry sump I don't see it happening. For an all aout race car for sure. For my hybrid street/tack setup not likely.


I also had a 600hp goal at one time..................................who knows what will happen.
 

psfracer

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Look into the JPC piece.. for a big bore Boss build, otherwise, and like has been said- above, its not necessary with the stock block.

I will say this about JPC: most of us in here can talk about theory and what would be the best setups.....but JPC is actually doing it. I would definitely give JPC a call for advice, that is for damn sure.

As much as I would like to run a dry sump I don't see it happening. For an all aout race car for sure. For my hybrid street/tack setup not likely.


I also had a 600hp goal at one time..................................who knows what will happen.

Oh I agree. Dry sump on anything other then all out race set up really doesn't make sense. I do know of a few "street" cars that run an external oil pump though and a wet sump pan.
 

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