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#1 | ||
FF.Com.Au Hardcore
Join Date: Jun 2009
Posts: 612
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Might sound like a silly question though I will ask it anyway as am sure somebody on here would know the answer, lets see who really is the Ford Guru on AFF
![]() What is the weight balance on a FG I6 Falcon as in front to rear etc? I would guess they are front heavy at around 65% front 35% rear, any takers? |
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#2 | |||
No longer a Uni student..
Join Date: Jan 2010
Location: Coffs Harbour, NSW
Posts: 2,557
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#4 | ||
FF.Com.Au Hardcore
Join Date: May 2005
Posts: 1,138
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55.5% front : 44.5% rear.
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#5 | ||
FF.Com.Au Hardcore
Join Date: Jun 2009
Posts: 612
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ZF Box, thanks guys I did not think it would be that far to the front (65/35) specially on the NA 6 however I thought me saying 65/35 might just make some more keen to tell me I was wrong & thus give me an answer lol
So assuming he is right FalconXV gets the prize which is simply a ty from me & Recognition as being a Ford guru ![]() |
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#6 | ||
FF.Com.Au Hardcore
Join Date: Jun 2009
Posts: 612
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So next question would be how much weight would you need to transfer to the rear to make it 50/50 & could that even be done?
And will the upcoming 2 Litre have a better balance? |
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#8 | ||
Regular Member
Join Date: Mar 2006
Location: Melbourne
Posts: 400
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two fat blokes in the back seat?
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#9 | ||||
Cane Farmer
Join Date: Jun 2006
Location: Tom Price, WA
Posts: 4,056
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__________________
1994 ED XR6T - Cobalt Blue. 2009 FG XR6 - Black. Quote:
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#10 | ||
FF.Com.Au Hardcore
Join Date: Jun 2009
Posts: 612
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lol so where can I hire a couple of Sumo's?
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#11 | |||
No longer a Uni student..
Join Date: Jan 2010
Location: Coffs Harbour, NSW
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And most likely. |
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#12 | ||
FF.Com.Au Hardcore
Join Date: Jan 2010
Posts: 11,286
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The I-6 versions are most likely 55% F 45% R but the iron block 5.4 Boss probably changed that to more like
60% F 40% R which is similar to a FWD Cars weight balance and probably why the V8s used to feel a touch nose heavy... |
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#13 | ||
No longer a Uni student..
Join Date: Jan 2010
Location: Coffs Harbour, NSW
Posts: 2,557
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How much does a typical lead-aid battery weigh? If you moved it to the boot...multiply that by 2 and you get the rearward weight shift.
Would have to be about a 50kg net change? |
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#14 | |||
Banned
Join Date: Jan 2011
Posts: 776
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Quote:
To be 50/50, 85kg would have to go from directly above the front wheels to directly above the back wheels.......or put about 2 x 85kg in the back seat, yep two fat blokes. Yep, you can move lighter things further past the axles to achieve the same effect, but that can affect the dynamics in other ways. Really though the cars are setup pretty well, if they started at 50/50 empty they'd end up horrible once you've put the driver in and with any sort of a load in the boot or rear seat. |
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#15 | |||
FF.Com.Au Hardcore
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My ride: 2007 Falcon Ute BF XR8 Orange, MTO. |
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#16 | ||
FF.Com.Au Hardcore
Join Date: Oct 2010
Posts: 690
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While generally speaking 50/50 Front to Rear weight distribution is a good thing, it’s not always the best outcome the engineers are trying to achieve. When it comes to car handling the car’s static (stationary) weight distribution is not as important as the actual weight distribution when the car is moving. For example:
When the car is braking the weight distribution will always move Forward (i.e. front biased) When the car is accelerating hard the weight distribution will always move backwards (i.e. rear biased) When the car is turning the weight distribution will move to the front and the cornering side, and then progressively balance back to the centre while moving rearwards as the car begins to accelerate out of the corner. That shift in the vehicles mass will generate additional pressure on the tyres hence increasing grip, which will help when braking, accelerating, and cornering … Many racing cars are actually setup to not be perfectly equal while stationary, however when driven at their expected speed they will achieve the required weight distribution for ultimate performance in the required circumstances ![]() |
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#17 | ||||
Cane Farmer
Join Date: Jun 2006
Location: Tom Price, WA
Posts: 4,056
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Quote:
__________________
1994 ED XR6T - Cobalt Blue. 2009 FG XR6 - Black. Quote:
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#18 | |||
Banned
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#19 | ||
FF.Com.Au Hardcore
Join Date: Oct 2010
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Love F1, tyres in F1 make a huge difference to the setup and most of the suspension movement is actually in the tyres LOL also aero adds massive weight to the car and it can generate 5G under braking
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#20 | |||
Petro-sexual
Join Date: Dec 2004
Location: Melbourne
Posts: 4,527
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Quote:
Body roll and pitch is affected by the difference in height between the CoG and the Roll Centres. |
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#21 | |||
love the quad cams
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Location: Baulkham Hills
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#22 | |||
Banned
Join Date: Jan 2011
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Quote:
Though during cornering I do agree, the height of the c of G is an issue irrepsective of axle height as even a slight bump can cause roll while cornering and pitch the c of G over axle height, my comment was prefaced for braking. Last edited by sudszy; 20-09-2011 at 01:40 PM. |
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#23 | ||
Banned
Join Date: Feb 2010
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fat blokes are 85kg now?
WOW |
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#24 | |||
Banned
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Quote:
Last edited by sudszy; 20-09-2011 at 01:45 PM. |
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#25 | |||
Petro-sexual
Join Date: Dec 2004
Location: Melbourne
Posts: 4,527
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Quote:
The two examples (pitch;braking/accel & roll;cornering) are one and the same. If it is true, as you've said, and there will be no pitch under braking if the CoG is level with the axles, then there could be no roll because the CoG is still level with the axles. |
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#26 | |||
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#27 | ||
Ich bin ein auslander
Join Date: May 2005
Location: Loving the Endorphine Machine
Posts: 7,453
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The Op asked about finding out weight distribution specs, I am thinking this has gone a little bit OT.
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Growing old is compulsory, growing up is optional! |
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#28 | |||
Petro-sexual
Join Date: Dec 2004
Location: Melbourne
Posts: 4,527
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Quote:
There is a whole lot more to suspension setup than I know, but for this example it's a very simple physics problem. While I still think this is sort of on topic. We should probably leave it at that. Go have a read of some suspension setup books and see for yourself, that pitch/roll is caused by the forces induced by the tyre contact patch and the CoG. How those forces are used, is a funtion of the suspension design. |
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#29 | |||
FF.Com.Au Hardcore
Join Date: Jun 2009
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#30 | ||
FF.Com.Au Hardcore
Join Date: Jun 2009
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While I can almost understand all that tech speak it does leave me a little lost though taking 1 part of it which I feel is relevent to myself & my reasons for asking is that if you have that many kilos of extra weight on the front would that not under hard braking make the extra weight more of an inluence than it would be under normal driving conditions thus making the not so bad balance as some have said rather bad?
As in a multiplier effect of sorts? Moving the battery into the boot in one of those battery boxes sounds good though would you then lose some effect of the alternator as the cables would be much longer than they were under the bonnet? |
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