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"MRB racing" torque mount(for those that asked)

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Old Apr 11, 2004 | 04:11 PM
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Default "MRB racing" torque mount(for those that asked)

for those who asked, this is the link to the "torque mount" that my friend mike and i have ventured into. it is a very sturdy very lightweight mount.

some of you might have seen the 2 different mounts we used at TR trackday. we are developing a full line of mounts for all sides and rears. to include EF,DA,EG,EK.

here is the link
http://mrbracing.20m.com/MRBracing/m...ngbusiness.htm



once again, i am not selling these on TR, i am just pasting the requested page.

thanks
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Old Apr 12, 2004 | 12:05 AM
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TTT...
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Old Apr 12, 2004 | 12:28 AM
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im still interested.... ill get in touch with you this week..... ttt for a nice product and good people to stand behind it.....
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Old Apr 12, 2004 | 10:31 AM
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Um...maybe I'm looking at it wrong but the picture provided on the link looks like two simple Heim joints threaded into a piece of machined hex-bar. How is this a good idea? Sure, it will limit engine torsion however it'll put a good deal of pressure on the shock tower, set up chassis vibration, and furthermore, since it appears to be mounted to the upper A-arm mount point, it may even affect caster angle under hard acceleration. Most of the kits available currently utilize some type of dampener to reduce engine torsion rather than simply bolting a bar to the engine and chassis. Also, what about the effect of fatigue? The engine will push/pull against the mount point and overtime will probably stress the bracketry or even cause stress fractures in the shock tower's sheet metal.

Last edited by Bill; Apr 12, 2004 at 10:38 AM.
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Old Apr 12, 2004 | 10:57 AM
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since were on the topic of motor/ torque mounts should i be able to rock my motor back and fort with my hands ???
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Old Apr 12, 2004 | 11:05 AM
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Originally posted by smoke3
since were on the topic of motor/ torque mounts should i be able to rock my motor back and fort with my hands ???
not much at all best way to see is leave your car in gear and dont pull the ebrake and try to rock your car back and forth and you could tell if your mounts are good
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Old Apr 12, 2004 | 12:00 PM
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you are correct about the very simple design of the mount.. its not hard to understand or see the concept. but large, strong, and warranteed heim tie rod style ends are hard to come by. as far as what it does it works! and works well. it transfers torque unbelievably. vice the type i ran on my hatch, i have a nitrogen filled dampner, sort of like a shock, after one track session it is now very loose, shaky, and i think it is leaking. as for being attatched to the shock tower, that is one of the strongest points of your engine bay, and no its deffinetley not hooked to the upper control arm bolt, thats dangerous. as for putting stress on a motor, we all do that with mount inserts, and stronger mounts, such as place racing, and hasport. it doesnt vibrate that much at all either, no more than any other mount out right now.......


but for a cheap way to get torque to the wheels and keep a gsr motor from hitting the hood its worth it
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Old Apr 12, 2004 | 12:16 PM
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Originally posted by NChatch
[B]you are correct about the very simple design of the mount.. its not hard to understand or see the concept. but large, strong, and warranteed heim tie rod style ends are hard to come by. as far as what it does it works! and works well. it transfers torque unbelievably.
Not doubting that it would since you're limiting motor movement.

vice the type i ran on my hatch, i have a nitrogen filled dampner, sort of like a shock, after one track session it is now very loose, shaky, and i think it is leaking.
I wondered about the lifespan of those little dampeners. Sucks that the quality isn't better.

as for being attatched to the shock tower, that is one of the strongest points of your engine bay, and no its deffinetley not hooked to the upper control arm bolt, thats dangerous.
I don't agree. While it's stronger than say the firewall it's still just two layers of formed sheet metal. With the flexibility offered by a heim joint, why not try to mount it to a frame rail or something? Granted the angle would be more severe but at least the wall thickness of the frame rail is greater than that of the shock tower.


as for putting stress on a motor, we all do that with mount inserts, and stronger mounts, such as place racing, and hasport. it doesnt vibrate that much at all either, no more than any other mount out right now.......
Not talking about stressing the motor, I'm talking about stressing the chassis. Motor mount inserts lessen engine movement while still allowing for some. Your solution would appear to cease all engine movement. With the repeated push/pull movement of the motor on that single mount point, overtime it's bound to fatigue the sheet metal. If you're going to go with that design I'd seriously consider adding some type of passive dampening at least. Perhaps cut the hex bar and have some type of threaded rubber bushing between the parts. EDIT: On second thought the rubber would probably end up shearing. A dampener would be the best choice. Check out www.truechoice.com if you're serious about these. They probably offer a small dampener that would perform the task well.

Last edited by Bill; Apr 12, 2004 at 06:21 PM.
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