Moving the battery / weight distro...

[Nafoff]

**I put this here as it could fall into a number of sub-category's...**

So i have a stripped 172, i also have a battery that seems to be running flat gradually...

i have contemplated when i get a new battery too..

1) move it too the boot

2) get a smaller jap battery...

now i have had a few discussions with various people on this, is there any real bonus i will get from moving the battery to the boot? at the moment i would say its good weight distribution against the driver, secondly the only other reason i would see for moving it is to improve space in the bay....but i have the standard phase 1 172 airbox (which is meant to be spot on anyway) with a direct airfeed to it, so i don't need more room for that...

any other reasons?

and will a jap battery work on mine or do i need a bigger one? (no jokes)

 

[caister]

Moving the battery gives better weight distribution as you said and will also allow you to get rid of the 90 degree bend between the airbox and the throttle body which in theory is a restriction. Whether it would make a noticible enough difference I'm not sure.

 

[geesus69]

i moved mine into the boot due to space in the bay for my induction kit, but made sure it was on the passenger side so that i was counter-balancing it when driving, not sure it makes any difference at all mind lol

 

[Nafoff]

lol...cheers guys....

 

[Fred@BTM]

get a redtop 20/25

chuck it under the passenger seat for the stealth install

chucking it in the boot serves no purpose IMO (don't bother with a stock size battery, big ugly f*****s)

 

[Nafoff]

that sounds quite a good idea fred, will look into that when back to work

 

[mini-valver]

The redtops go flat though if you leave the car for a few days....

 

[Nafoff]

ah ok.......back to the drawing board possibly then

 

[kie1an]

any decent guides on this , and how come when i see pics of peoples track cars they dont have dry cell batterys ? which i thought was a must when relocating the battery inside the cabin

 

[Rich]

Racecar has a small Odyssey 680 battery on it and that held it's charge between races in the summer without any issues.

 

[Nafoff]

i will do a bit more research when i am back in work in a few weeks,

i noticed that beaniemoo had it in his... looked good and he said he has had no issues, but he has a kill switch

 

[ChrisR]

secondly the only other reason i would see for moving it is to improve space in the bay....but i have the standard phase 1 172 airbox (which is meant to be spot on anyway) with a direct airfeed to it, so i don't need more room for that...

But you still have that nasty 45 degree bend between box and TB, with the battery out the way you can move the airbox and have it pretty much straight, a la a cup racer.

 

[Nafoff]

hmmm...that make that much difference then?

 

[ChrisR]

I'm no expert so could be talking crap, but I was always under the impression that the straightest path was the best so anything you can do to help this is a bonus. Plus it's how the cup racers are setup which can't be all bad

 

[Nafoff]

i spose, would need a new hose made up again though which would be a bit of a pain....

need to sort the battery location first

 

[sammyhale22]

I run a 925 Odyssey in my boot.
How do you guys go about fastening the ECU in place when you lie it down?