» Site Navigation | | » Recent Threads | | | | | | | 03-27-2004, 07:58 PM | #1 | Senior Member Join Date: Jun 2003 Location: Manhattan Kansas Posts: 242 | Just wondered if anybody has done this mod. And also if you thought if was worth the effort. | | | 03-27-2004, 08:10 PM | #2 | Senior Member Join Date: Jun 2003 Location: Greenville, SC Posts: 9,356 | Some people have relocated the battery to the rear to balance the weight a little more. I hardly see it worth it. When we weighed my 328ti the weight was almost 50/50. Mounting the battery in the hatch will limit some of your space back there. It's not like there is a compartment set up to accomodate a battery. __________________ ...steven BMW CCA #146825 1996 BMW 328ti • 2003 MINI Cooper S • 2016 M235i www.bmwcca.org | | | 03-27-2004, 08:34 PM | #3 | Senior Member Join Date: Jun 2003 Location: Manhattan Kansas Posts: 242 | yea thats true, thanks for the quick reply | | | 04-02-2004, 04:13 PM | #4 | Moderator Join Date: Jun 2003 Location: Bouncing off the rev limiter in CT! Posts: 3,156 | I had toyed with the idea of twin 6-volt optimas, one on each side of the rear compartment, at one point. Seems like a good idea, and you only loose the storage bins for the Mobil-1... Have not done it yet. I have an Optima red-top in the stock location currently. I reccomend an orange top (reversed poles) if the stock location is used. This prevents having to change the ground cable for a slightly longer one (as I have done). I have not weighed my car yet. Steve: is your motor an iron block 2.8, or aluminum? I expect the 2.8 and 3.2 to be similar weight (+- 60 lb.). Also, did you do the mix-n-match M3 front suspension as I have done to push the front wheels forward? I'm curious now... | | | 04-05-2004, 02:25 AM | #5 | Senior Member Join Date: Nov 2003 Location: Walnut Creek, CA Posts: 642 | I have a very small and very light (13.5 lb) battery in my trunk. Actually it fits perfectly in to the passenger side trunk bin and doesn't hardly take up any space. Check out: http://www.rogueengineering.com/Merc...gory_Code=BATT You have to run battery cables from the engine compartment, thru the fire wall, and under the carpet, under the seat cushion, along the edge of the trunk, and into the box. I lost 50 lbs high over the font wheels, and put 13.5 lbs low in the rear. My car has an S50USB30 transplant and weighs approx 2900lbs with 54%F/46% rear. Steven's car used to be Stephen's (FLBearcub) car, which, if I remember, has an aluminaum block 328, whcih should save maybe +/- 60 lbs off the front wheels. | | | 04-05-2004, 03:56 AM | #6 | Senior Member Join Date: Jun 2003 Location: Greenville, SC Posts: 9,356 | Quote: Originally Posted by clex2 Steven's car used to be Stephen's (FLBearcub) car, which, if I remember, has an aluminaum block 328, whcih should save maybe +/- 60 lbs off the front wheels. | Nah. It's not aluminum. It came out of a 328. I've owned the car exactly 4 years now. __________________ ...steven BMW CCA #146825 1996 BMW 328ti • 2003 MINI Cooper S • 2016 M235i www.bmwcca.org | | | 11-07-2004, 08:54 AM | #7 | Member Join Date: Oct 2004 Posts: 31 | how much does you car weight steve? I saw in another post you had close to 50/50 balance with that 2.8...right? | | | 11-07-2004, 06:29 PM | #8 | Senior Member Join Date: Jul 2004 Location: Tampa Posts: 465 | I am removing my spare tire, and welding a deep battery box (will fit 2 drycells for the system) if I get a flat I carry fix-a- flat or AAA. | | | 11-08-2004, 02:07 AM | #9 | Member Join Date: Oct 2003 Location: East Coast Posts: 89 | Quote: Originally Posted by J!m I had toyed with the idea of twin 6-volt optimas, one on each side of the rear compartment, at one point. Seems like a good idea, and you only loose the storage bins for the Mobil-1... Have not done it yet. I have an Optima red-top in the stock location currently. I reccomend an orange top (reversed poles) if the stock location is used. This prevents having to change the ground cable for a slightly longer one (as I have done). I have not weighed my car yet. Steve: is your motor an iron block 2.8, or aluminum? I expect the 2.8 and 3.2 to be similar weight (+- 60 lb.). Also, did you do the mix-n-match M3 front suspension as I have done to push the front wheels forward? I'm curious now... | Whoa jim please explain on the susp set up. Steve: I totally disagree, i think using that 13 lb battery from Rogue is a useful mod to get rid of the understeer from the increased weight of the motor swap. Ben used that and a CF hood, so I assume that is almost perfect | | | 11-08-2004, 02:10 AM | #10 | Member Join Date: Oct 2003 Location: East Coast Posts: 89 | Quote: Originally Posted by clex2 My car has an S50USB30 transplant and weighs approx 3900lbs with 54%F/46% rear. . | Damn that is one heavy car. Audi s4 weighs 3950 | | | 11-08-2004, 02:38 AM | #11 | Member Join Date: Oct 2004 Posts: 31 | yea, thats why I asked how much steves car weighed...I think 3900 pounds was a typo...he probably meant 2900 lbs. | | | 11-08-2004, 02:53 AM | #12 | Member Join Date: Oct 2003 Location: East Coast Posts: 89 | Quote: Originally Posted by Freedy yea, thats why I asked how much steves car weighed...I think 3900 pounds was a typo...he probably meant 2900 lbs. | Even at 2900lbs that still sounds really heavy. It should weigh around 2700lbs | | | 11-08-2004, 03:00 AM | #13 | Senior Member Join Date: Jun 2003 Location: Greenville, SC Posts: 9,356 | Quote: Originally Posted by Freedy how much does you car weight steve? I saw in another post you had close to 50/50 balance with that 2.8...right? | I think it was ~2966 when we weighted it. It was almost 50/50. Maybe 48/52 or 49/51. Whatever it was it was negligable. Looking at an old brouchure it says a 318ti weighs 2745. If a gallon of gas weights 6 pounds and the volume varies from day to day, does relocating a battery really matter? __________________ ...steven BMW CCA #146825 1996 BMW 328ti • 2003 MINI Cooper S • 2016 M235i www.bmwcca.org | | | 11-08-2004, 03:17 AM | #14 | Member Join Date: Oct 2003 Location: East Coast Posts: 89 | minus the spare tire 2700lbs sounds about right. Also what is the weight difference between the M44 and the M52? | | | | | Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | | Posting Rules | You may not post new threads You may not post replies You may not post attachments You may not edit your posts HTML code is Off | | | |