Engine wearing down -> big improvement in fuel consumption?!

  • Thread starter Thread starter schnopsnosn
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schnopsnosn

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So I'm just grinding the Indy 500 with my FGT and have the Bobs race it.
So after the last race my engine lost some power(926BHP after oil-change) and right now I can get about 4-5 laps more out of the car before the fuel runs out.

Can anyone else confirm this?
 
Mine is down to 885 after an oil change but I have not been paying attention to how often Bob is pitting anymore. I just let him go do his thing while I go do something else.
I do know that when I drove it myself I was running very low after 37 laps and tried to get 38 but ran empty coming out of the last corner and had to coast into the pits.

I also know that late in the race I was able to squeeze 38 laps out of it barely so it really seemed about the same to me. At the time mine was running 925 after an oil change.
 
So I just pushed my Bob for 40 consecutive laps to test it.
If I let him do his thing and let him slow down he could do around 40 laps. This time he managed to get 42 laps out of it.
 
Hard to say with Bob driving. He speeds up and slows down to much to get a good feel of it.

When I was driving I was flat out for 37 laps, in the pits, flat out for 37 laps and repeat every lap was within a few 10ths as well and all of them a few seconds faster than Bobs best lap on his best day.
 
Well it's almost the 10th time I'm doing this race now and everytime they pitted in the same laps...
39/40, 79/80, 119/120, 160.

I was expecting fuel consumption to go up a bit with engine-wear kicking in, but this is a pleasant surprise.
 
Less power means that less fuel is used. However if the loss of useful power is due to the increase of internal (mechanical) power losses, consumption shouldn't positively change (if else, if should get worse). If what you reported is correct, then what GT5 simulates is similar to the power loss due to a clogged up air filter and/or intake and not to mechanical deterioration or decrease of the "hyperlube effect" that fresh oil gives in the game.
 
SHIRAKAWA Akira
Less power means that less fuel is used. However if the loss of useful power is due to the increase of internal (mechanical) power losses, consumption shouldn't positively change (if else, if should get worse). If what you reported is correct, then what GT5 simulates is similar to the power loss due to a clogged up air filter and/or intake and not to mechanical deterioration or decrease of the "hyperlube effect" that fresh oil gives in the game.
Click to expand...

Wouldn't a clogged air filter lower your fuel economy? Or did I mis-read your post?
 
freedomweasel
Wouldn't a clogged air filter lower your fuel economy? Or did I mis-read your post?
Click to expand...

Not on modern cars since the amount of fuel injected is directly proportional to the air flow, so less air means less fuel (and also less power).
A badly worn/clogged air filter in addition to greatly reduce power can however also allow larger dust particles to be sucked by the engine, so it's a good idea to change it when the occasion arises. This hasn't much to do with GT5 though.
 
Mix air and fuel then compress and combust to make power.
So making less power means less air and fuel mixture.

Sounds like perhaps Polyphony was trying to simulate that scenario to it's basics.
 

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