Another one bites the dust

[Shark]

I\'m sure I heard that 1/4 tank can be a problem on the higher power drag cars.
G force on drifting must be pretty high, but it does seem a little much.  

Not sure where in the tank the pump is positioned, which would prob be an important factor

[J4P RX]

High power drag cars are pulling over 2g launches.

Drifting only pulls about 0.6g (which is a pretty constant rate on a slipping tyre im led to believe).  I imagine you get more splosh around though if your flicking one way to the other.  You would pull more G just cornering on a fast racing line and that wasnt a problem.

[antnicuk]

there are plenty of baffles in a Rx tank, to stop just that and with half a tank you would be hard pushed to take fuel away from the pump inlet.  I very much doubt that drifting had anything to do to it.   I wouldnt have thought that a drift would be much longer than a hard left hand sweeping bend but i\'m no expert.   What set up do you have on your engine? and how many miles has it done?

[Shark]

no more ideas here then.  sorry bud.

Hope someone that knows more than me can help or you manage to trace it soon.

[J4P RX]

Originally posted by antnicuk
I very much doubt that drifting had anything to do to it.   I wouldnt have thought that a drift would be much longer than a hard left hand sweeping bend but i\'m no expert.   What set up do you have on your engine? and how many miles has it done?

Stock engine, Knightsport ECU, Decat, approx 2000 miles.

I wouldnt of thought drifting would be harder than a bend either.  Theres a definate problem though, and its specific to drifting a left hand bend.  This is the bit I dont get my head around.

When I say drifting we are not talking about a smidge of sideways action.  We are talking about 1.5-2 turns of opposite lock being held round a bend.

[scooby_si]

Is the knightsport defo set up for yer decat not runnign lean etc etc & in what way has it blown you say you still mananged to drive 160miles after?
Si (answers will mean little to me http://www.smileycentral.com/?partner=ZSzeb008\' target=\'_blank\'>http://smileys.smileycentral.com/cat/29/29_1_5.gif\' border=0> but thought i\'d ask)

[scooby_si]

At what stage do folks tend to run surge tanks erm stir thingies erm etc then?
Si (not sure if that\'s even the correct term but sounded vaguely familair...)

[J4P RX]

Originally posted by scooby_si
Is the knightsport defo set up for yer decat not runnign lean etc etc & in what way has it blown you say you still mananged to drive 160miles after?
Si

I dont know what the fueling is like.  Its too much of a co-incidence to have the problem though and for that not the be the cause of the blow.

Its probably broken a tip.  You can still drive them depending how bad it is, its just not that nice.

[clive]

Blimey Lee real chocked to hear you have lost your engine

Whilst it sounds like starvation and I have had it through left handers and not right in the past, are you sure it was not free reving enough  (where the tyres were spining ) to be fuel or boost cutting due to high revs ?

p.s. how much fuel did it take when you filled because although you saw 1/2 a tank FD fuel gauges arn\'t the most acurate in the world !

[antnicuk]

I take it the K/S ecu was plug and play or on it already, you didnt have it mapped. An ecu will be set up for certain mods, if any of these mods change the ecu should be remapped.  (hope i\'m not teaching you to suck eggs).  Also, if it is jap, their fuel is better so it should be readjusted for optimax.

You can buy special sponges that go in the fuel tank to stop fuel sloshing about but i think its more likely to be ecu issues.

[antnicuk]

fuel being forced up the filler neck leaving the pump with less to get at???

left hander would not make fuel go in to the filler neck, its the wrong side...........:confused:

[GaryS]

Ouch Lee, you\'ve not had much luck recently

Perhaps the fuel pump has been on it\'s way out and becoming less efficient.  On left turns/drifts, the fuel surge might have been enough that the under-powered unit just was not pulling in enough fuel.

[J4P RX]

Tony,

Probably get a fair amount of force the other way actually due to the angle of the car?  I dont know but I dont think it going up the filler is an issue lol.

Clive,

What do you mean because I dont understand about free revving enough?  With regards to how much fuel, I still drove 160 miles back home on the same tank after so maybe thats a more accurate measure of the fuel lever.  It was also the same tank I drove there on, about 320 miles total when the light came on and I put £20 quid in at Reigate Hill just to be sure I wouldnt run out.  Wanted to get as close as home before topping up incase it wouldnt restart or something.

Lee

[maximtaylor]

Wasn\'t bouncing off the limiter too much was it Lee? I\'d imagine it\'s quite easy to do this whilst drifting?

Max

[rextreme]

Lee,

When I was drifting at Mobara in Japan, There was a long left hander leading on to the straight.

I had fuel supply problems. The car coughed and splttered a few times. Only when the tank was about 1/2. Early on the car had no probs.

R.I.P 13b

Russ.