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Old 08-18-2010, 07:10 AM   #1
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"As for the MPG increase, typically the IMSR will show a tad more MPG after it has been carried out and after the new bearing's break in procedure.. It always doesn't do this, but there are some good instances of it."


Not to hijack the thread, but what is the new bearings' break in procedure? I had the procedure done and my mechanic didn't mention anything about a need to "break in" the new bearing.

FWIW, after picking up the car, I took it easy going home and the next day I went on a road trip to Western Maryland (about a 3 hour drive from Baltimore). I took it easy most of the way, but i did get up into the 90s the further i got into the mountains. Top down all the way, beautiful. (Maybe that's part of the procedure? hehe)
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Old 08-18-2010, 07:30 AM   #2
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Quote:
Originally Posted by billthomas
Not to hijack the thread, but what is the new bearings' break in procedure? I had the procedure done and my mechanic didn't mention anything about a need to "break in" the new bearing.

What was your improvement in gas mileage - 3, 4 MPG?

I haven't noticed anything dramatic, but i haven't really been monitoring it either. I am due for a fillup so i will get back to you after a few tanks.
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Old 08-18-2010, 07:57 AM   #3
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Quote:
Originally Posted by billthomas
" I haven't noticed anything dramatic, but i haven't really been monitoring it either. I am due for a fillup so i will get back to you after a few tanks."

It was a rhetorical question.



AARRGGH, I hate rhetorical questions. I get enough of that crap from my boss. I don't need to get it here too.
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Old 08-18-2010, 08:08 AM   #4
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Quote:
Originally Posted by billthomas
It was a rhetorical question.
Could billthomas be the infamous Mr. Woodcock?
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Old 08-18-2010, 08:21 AM   #5
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I figured he was SPPMO.
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Old 08-18-2010, 08:29 AM   #6
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Looks like SPPMO has departed :-)

The bearing doesn't really have any break in procedure, but we typically do see the engine lose 1-2HP on the dyno in the "after" test with the bearing retrofit when compared to the before runs. When I have re-tested cars after a week of driving the power was back and usually was 1-2 HP higher.

When we do these tests we are looking for huge drops in power AFTEr the work is done, if we don't see more than 1-2 HP then we know that the timing is correct and the procedure was effective. We have NEVER carried out an immediate "after" test that showed more power than before the bearing was retrofitted. This is how we came to understand the break in period for the bearing was from these tests immediately after and then over weeks after the procedure.

Nothing needs to be done specially after the bearing is retrofitted, just drive it normally and use normal oils.

The MPG increases are generally so small they can't be measured, but I have seen one engine pick up 3 MPG after the procedure was done. It was driven to us from Ontario Canada and on the return trip it attained 3 MPG more than it did on the trip down according to the Owner, but I think thats a tad extreme.

The ceramic bearing offers a reduction in friction, that reduction in friction adds longer life and frees up power..
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Old 08-18-2010, 11:18 AM   #7
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Quote:
Originally Posted by billthomas
... scientific "pear reviewed" research ...


I have yet to meet a scientific pear. I find kiwi fruit to be much more analytical.
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Old 08-19-2010, 05:20 AM   #8
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Quote:
Are you saying a side benefits to an IMSR bearing is it will/maybe/a tad improve mileage?
It can.

The reason being the reduced friction which directly impacts the engine's efficiency.

Not all cars are the same, actually none are the same and the same applies to drivers of the cars. We've seen some cars pick up 3MPG, others haven't picked up any and some people never even noticed a difference because MPG doesn't matter to them.

Lots more can impact MPG other than a bearing retrofit, especially the engine's state of tune, condition of the MAF sensor, etc, etc.

I do not formally advertise better MPG with the retrofit because it doesn't happen in enough instances, nor does it happen in a great enough scale to be noted.
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