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something for the track drivers

Started by RS_Sprint, September 23, 2003, 08:36:42 PM

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El

what exactly happens during a fuel surge?? and how does it lead to a ka-blooie!??

mz_danni

Quote from: hesperusph on January 29, 2004, 05:48:29 PM
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full tank ? . . . i say bring na lang reserve.  full tank makes your car heavier.
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YES, full tank definitely.  if your car generates high g-loads, you run the risk of experiencing fuel surge if you start running low on fuel.

and you know what happens when you run lean on the track for even a few seconds...

KA-BLOOIE!

i'd rather carry a few kg extra weight, than run the risk of blowing her up because i was at 1/4 tank nalang...
umm . . . sorry, i dont get it.

half tank i think will do 8-10 laps in SIR or BRC.
the lighter the car, the more efficient, IMO.
Its called Individual Differences.

DEAL WITH IT!!

hesperusph

if you're running low fuel levels na, and your car is pulling very heavy g-loads in the corners, the little fuel that's left gets thrown around the fuel tank, and the pick-up may be unable to get at the fuel.

so you may suddenly find yourself running lean, and on a highly stressed, highly tuned engine that demands a lot of fuel-- lalo na pag F.I.-- you may damage something.  remember, even only a few seconds of bad detonation can be all it takes to damage your pistons.

granted, this is a relatively rare occurence (i.e., fuel surge).  but it CAN happen.

i have one of those old Best Motoring "super battle" races around a long high speed track (not tsukuba), where they had an Evo 5 chasing a Ferrari F355 for the lead.  the Evo was gaining, and suddenly the engine gave up.  i don't speak or understand japanese, but a friend of mine who had it translated said that the engine let go as a result of fuel surge.

and one time before, while at BRC, i was having so much fun around the track, i suddenly felt the car "stutter" rather severely particularly at casino.  i checked my fuel gauge, and saw i was running kinda low na.  but the problem only occured when pulling high lateral g's... so it was a fuel pick-up issue.

chances of it happening to you?  probably quite low, especially if you just keep track of your gas level.

but do you REALLY want to take those chances?  ;D

luwe

Besides you can always just remove some crap from your car to make it lighter. Like the passenger seat, for example  ;)

Kung trackday talagang full tank dapat. Kundi hindi na ako makakauwi. Nakakawili masyado umikot ikot e.
Protegetech http://www.protegetech.org/
Ford Club Philippines http://www.fordclubph.com/

fatbastard

i heard that BRC upped its prices na for the year..... any truth to this??  ???
i want my Aristocrat chicken BBQ c/o weiman5!! hehehe Ü

mz_danni

Quote from: mz_danni on January 29, 2004, 05:17:25 AManother question:
how about the clutch assembly?
do they have certain mileage to replace them?
if so, what do need replacing? the disk? the pressure plate? or both?

follow up question lang.
Its called Individual Differences.

DEAL WITH IT!!

Leepu Awlia

Quote from: mz_danni on February 02, 2004, 01:26:07 AM
Quote from: mz_danni on January 29, 2004, 05:17:25 AManother question:
how about the clutch assembly?
do they have certain mileage to replace them?
if so, what do need replacing? the disk? the pressure plate? or both?

follow up question lang.
clutch disc, pressure plate and throw out bearing should be replaced at the same time. they are replaced as needed.
when you start noticing the clutch starting to slip, when you start noticing a shuddering in 1st gear coming off a standstill, when you start noticing bearing whine from the bell housing, then its time......
Formerly known as Nacho Libre


mz_danni

thanx for the response.
so that means, no necessary mileage what so ever.
it really depend on the feel (feedback).
thanx.
Its called Individual Differences.

DEAL WITH IT!!

enigmazutapia

Quote from: hesperusph on January 31, 2004, 04:07:13 PM
if you're running low fuel levels na, and your car is pulling very heavy g-loads in the corners, the little fuel that's left gets thrown around the fuel tank, and the pick-up may be unable to get at the fuel.

so you may suddenly find yourself running lean, and on a highly stressed, highly tuned engine that demands a lot of fuel-- lalo na pag F.I.-- you may damage something.  remember, even only a few seconds of bad detonation can be all it takes to damage your pistons.

granted, this is a relatively rare occurence (i.e., fuel surge).  but it CAN happen.

i have one of those old Best Motoring "super battle" races around a long high speed track (not tsukuba), where they had an Evo 5 chasing a Ferrari F355 for the lead.  the Evo was gaining, and suddenly the engine gave up.  i don't speak or understand japanese, but a friend of mine who had it translated said that the engine let go as a result of fuel surge.

and one time before, while at BRC, i was having so much fun around the track, i suddenly felt the car "stutter" rather severely particularly at casino.  i checked my fuel gauge, and saw i was running kinda low na.  but the problem only occured when pulling high lateral g's... so it was a fuel pick-up issue.

chances of it happening to you?  probably quite low, especially if you just keep track of your gas level.

but do you REALLY want to take those chances?  ;D


Ummm singit lang....I guess a baffled fuel cell is in order and would be nice to place on your wants list........hehehehehe
Enigz na lang for short

hesperusph

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Ummm singit lang....I guess a baffled fuel cell is in order and would be nice to place on your wants list........hehehehehe
Quote

and while you're at it, might as well get a baffled oil pan!  or mag dry sump ka na!   ;D

Auto_Xer

Hindi ata fuel surge tawag dun, kundi fuel starvation.

You use a surge tank(secondary smaller tank that's always kept full & is between the primary fuel tank & engine) to counter fuel starvation.

Baffled fuel tank or a foam filled fuel cell will help too.

Re: clutch
Replacement is always subject to wear & driving habits.
It's the same with brake pads & other parts of the car.
The harder/rougher you launch/shift/brake/etc your car(or the less smooth you are) the more wear/stress it's subjected to.

mz_danni

thanx for the clear explanation, Auto_Xer. :-*
Its called Individual Differences.

DEAL WITH IT!!

Sc0oby

February 17, 2004, 10:19:11 AM #57 Last Edit: February 17, 2004, 10:27:29 AM by Sc0oby
Your welcome, mz danni.
Just trying to help out as always.

An additional thing to check when going to the track.

You should also check yourself to make sure your relexed & not in "gigil" mode.
More often than not, accidents of new(& old) track drivers stem from making mistakes by being to tense.

If your a new comer to the track take time to learn the limits of your car, the track layout before going flat out.

Something more about clutches & brakes.
Don't forget to break in you new parts first before subjecting them to hard use.
They'll last longer as you won't glaze the mating surfaces of the brake pads/rotors & pressure plate/disc/flywheel.

Subjecting them to abuse immediately after installation will result in the surfaces having a slippery mirror like "top coating".
You might end up with parts in worst condition then you started out with.

Using Sc0oby's PC....Auto_Xer
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mz_danni

thanx again, sir.
ill try to remember that :-*.
Its called Individual Differences.

DEAL WITH IT!!


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