Drivetrain (Cooper S) MINI Cooper S (R53) intakes, exhausts, pulleys, headers, throttle bodies, and any other modifications to the Cooper S drivetrain.

Drivetrain R53: Battery relocate & straight exhaust

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Old May 18, 2008 | 08:27 AM
  #26  
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Video Camera!!!!!
 
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Old May 18, 2008 | 08:32 AM
  #27  
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Sorry don't own one.
 
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Old Oct 27, 2008 | 08:00 AM
  #28  
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I did this over the weekend--with great success! It really is quite simple and the new 11lb Braille is in place, all the wiring back on and looking quite normal. Of course there's a giant gaping hole under the rear center of the car, to be filled with a straight exhaust as soon as I can get around to it--it's just hard to choose a muffler and tips. I was thinking about the C5 split-oval tips just for something completely different.
 

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Old Oct 27, 2008 | 08:22 AM
  #29  
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Originally Posted by DrPhilGandini
I did this over the weekend--with great success! It really is quite simple and the new 11lb Braille is in place, all the wiring back on and looking quite normal. Of course there's a giant gaping hole under the rear center of the car, to be filled with a straight exhaust as soon as I can get around to it--it's just hard to choose a muffler and tips. I was thinking about the C5 split-oval tips just for something completely different.
Dr. Phil, pics of the battery and how you have it mounted please. I'm interested. Thanks !!
 
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Old Oct 27, 2008 | 08:47 AM
  #30  
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Yes, I forgot to bring the camera to work today (!) But I will post some photos tomorrow showing a little of the how done, and the final mounting.
 
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Old Oct 27, 2008 | 11:13 AM
  #31  
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Originally Posted by DrPhilGandini
Yes, I forgot to bring the camera to work today (!) But I will post some photos tomorrow showing a little of the how done, and the final mounting.
Thanks !!! Will be looking forward to them.
 
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Old Oct 27, 2008 | 07:08 PM
  #32  
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i hate all of you,
6 months after i drop nearly a grand on the mighty milltek,
you guys pull this project on me... THANKS,
this sounds like so much fun, and its probably sooooooo bada$$
oh well... it happens.
in fact,
it happens ALL THE TIME to me here on NAM
hahah
 
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Old Oct 27, 2008 | 08:27 PM
  #33  
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Originally Posted by DrPhilGandini
I did this over the weekend--with great success! It really is quite simple and the new 11lb Braille is in place, all the wiring back on and looking quite normal. Of course there's a giant gaping hole under the rear center of the car, to be filled with a straight exhaust as soon as I can get around to it--it's just hard to choose a muffler and tips. I was thinking about the C5 split-oval tips just for something completely different.
I have a brand new set of those here in my garage. Need a set?



This is the one I really really like. Supersprint and crazy $$


Longboard
 
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Old Oct 27, 2008 | 10:02 PM
  #34  
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That is so crazy Longboard!! Does it actually fit in the bumper cut out??? haha.
 
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Old Oct 28, 2008 | 06:45 AM
  #35  
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I have an all Burns Stainless straight through system all planned out.
All 3in for my future plan of going turbo-only
2.5" to 3" reducer Adapter
2x 12"
1x 8" with a 1 to 2 base merge collector for my tip out the back
 
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Old Oct 28, 2008 | 08:26 AM
  #36  
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Originally Posted by daegerter
i hate all of you,
6 months after i drop nearly a grand on the mighty milltek,
you guys pull this project on me... THANKS,
this sounds like so much fun, and its probably sooooooo bada$$
oh well... it happens.
in fact,
it happens ALL THE TIME to me here on NAM
hahah
Dude, I've had my Ireland Engineering on roughly 6-7 months now, and I feel you. Not complaining abot the IE, because I really love it, but now this project has caught my attention again!!! I say again, because Tony B in here did this same mod a while back and did an incredible right up on it.
 
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Old Oct 28, 2008 | 12:13 PM
  #37  
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As promised: Stage I Remove battery box and relocate battery.

Step one: Get rid of this ugly thing:



Do this with a 4" cutting disc on an angle grinder:



Now seal and rivet a Al plate over the hole and locate the new battery. In this case a 11lb Braille.



I made a bracket to hold it down, tightened up all the wiring, and replaced the boot liner with a cutout:



Finally cover it up with something. In my case I use acoustic foam as it quietens road and exhaust noise and doesn't weigh a lot. I will eventually put a piece of carpet over it to make it look nicer.



Stage II: the straight exhaust!
 
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Old Oct 28, 2008 | 01:33 PM
  #38  
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Wow, that is really good. I was concerned thinking the battery would actually be inside the cabin, but it's no more in there than the stock location. Thanks for the pictures. Great job. One question though. Looking at your pictures, I take it the Braille batteries can be mounted sideways. Thanks again or sharing the pictures. Awesome job so far.
 
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Old Oct 28, 2008 | 01:47 PM
  #39  
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Yes, the Braille are sealed and can be mounted in any orientation--in fact they come with two post options so that the posts are vertical in either the side mount like mine, or the vertical mount (which would be if you mounted it in the engine bay in a normal car, I guess). If you were willing to do some rewiring, you could put the battery almost anywhere. Randy of M7 put a 14lb Braille behind the passenger seat. I was thinking of doing that as my seats don't move, but the stock location was just too easy. I don't carry a lot of stuff in my car, so losing the little depression to the foam is a small inconvenience.

I'm going to talk to a muffler shop tomorrow about making a custom section. Everyone I talk to says custom is the only way to go as there just aren't any pre-fabbed options. I think this mod is so rare that there's no real market for a kit.

Of course, you know where I'm headed with this...
diffusers !!
 
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Old Oct 30, 2008 | 12:43 PM
  #40  
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To keep Fatherdeth and others up to date:
I saw my local muffler guy yesterday and have ordered the following:


Flowmaster Corvette C6 tips 3.5" slight oval pair.

Flowmaster Super 44 muffler. 2/5" in and out (single).

I found some Porsche Boxster split oval tips, but they were $360. Ouch...
 
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Old Oct 30, 2008 | 01:17 PM
  #41  
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Nice job Phil!

Thanks for the pics.
 
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Old Oct 30, 2008 | 02:12 PM
  #42  
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Looks good can't wait to hear it!
 
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Old Oct 30, 2008 | 02:35 PM
  #43  
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Are you going to black out those tips to continue your car's theme? I think the tips would look great anyways, but blacked out they would look insane.
 
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Old Oct 30, 2008 | 02:47 PM
  #44  
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this is AWESOME!!! I've been planning on doing this for a while now, and actually had that battery in mind, I took some measurements and thought about just making the box more shallow, so it would still fit under the floor, but this seems a lot easier. my goal was to allow for a straight exhaust, but with plans to add something like the M7 funnels
thanks a lot. Now I HAVE to do this and spend the money on a battery
anyone wanna buy a 2 yr old stock battery?
 
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Old Oct 30, 2008 | 03:05 PM
  #45  
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Originally Posted by MiniMacPR
Are you going to black out those tips to continue your car's theme? I think the tips would look great anyways, but blacked out they would look insane.
Yeh, I wish I could get the tips in plain SS or even black. Maybe black chrome...
Nah, I'm so impatient I'm going to have them welded on the muffler next Friday (!) Maybe some of that BBQ black paint. Anyone know how much heat the PlastiCoat will handle?
 
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Old Oct 30, 2008 | 04:17 PM
  #46  
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I think on the can Plast-dip says 200 deg. but someone did the joey mod w/ it and baked it at 230 w/ no adverse effects. I had the ALTA stealth exhaust and the paint started chipping off, so I sprayed a little bit of regular black spray paint on the tip, but it was just a small area on the outer rim, but I haven't experienced any trouble since, but there are all sorts of high heat paints available
 
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Old Oct 30, 2008 | 05:58 PM
  #47  
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Interesting to hear what a super 44 will sound on the ole mini
 
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Old Oct 30, 2008 | 07:46 PM
  #48  
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Originally Posted by DrPhilGandini
That is so crazy Longboard!! Does it actually fit in the bumper cut out??? haha.
It does. I really liked it until I held it up in the cut out and then .

Longboard
 
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Old Oct 30, 2008 | 08:05 PM
  #49  
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I want these

This is what I want. If I can't buy them I'm going to maker them.

Longboard

 
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Old Oct 30, 2008 | 08:21 PM
  #50  
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Originally Posted by DrPhilGandini
Now seal and rivet a Al plate over the hole and locate the new battery. In this case a 11lb Braille.



I made a bracket to hold it down, tightened up all the wiring, and replaced the boot liner with a cutout:
If a small battery like the Braille B14115 was rated for cold climates, I would have done this mod years ago.
 
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