It boggles the mind....

[Barry B]

.. how a fuel motor burns this amount of fuel in one cylinder, never mind all of 'em ! Have a squint at this.....

http://www.youtube.com/watch?v=xGTbQuhhluY&fea...

[ribaric]

Kinnelllll!!!!!

[veryoldfart]

next drag racing "urban legend"...

is it true you could (maybe) weld with the output of a twin-magneto setup (if anyone was crazy enough to try).........


(dont try this at home folks!)

[ribaric]

If you collected all the clutch dust from a typical TF launch, would it fill an egg cup/ tea cup / pint pot???? These are the questions which took humans to the top of the food chain.

[veryoldfart]

ribaric said:

If you collected all the clutch dust from a typical TF launch, would it fill an egg cup/ tea cup / pint pot???? These are the questions which took humans to the top of the food chain.

or even a pisspot sorry, chamber pot (AKA "guzunder")

BTW, your only at the top of the food chain when in Tesco or McDonalds, walk into a bears cave or a pride of lions and suddenly YOUR the food...

[ribaric]

So true.

All this reminds me of endless hours of mindless and pointless conversations between our team and other assorted guests (who mostly didn't have a covered trailer) whilst huddled together in our tin box and waiting for any hint of a break in the clouds. Such wonders were discussed including how to design a rear end for a dragster which sported one single huge rear slick which stretched the entire width of the car. The fag packet engineering sketches were a sight to behold.
Roger Sinclair once asked, after a period of glum silence, "D'ya think Hitler had to pay for his haircuts?" The man has depth and profundity to spare.

[PhilSweeney]

veryoldfart said:

next drag racing "urban legend"...

is it true you could (maybe) weld with the output of a twin-magneto setup (if anyone was crazy enough to try).........


(dont try this at home folks!)

think thats just a reference to the 44AMP Mags being of similar AMPS to a stick set. the application would be hugely different.

[cliff gould]

Barry B said:

.. how a fuel motor burns this amount of fuel in one cylinder, never mind all of 'em ! Have a squint at this.....

http://www.youtube.com/watch?v=xGTbQuhhluY&fea...

this is only running one nozzle.
top fuel setups have
two nozzles by the inlet valve.
one or two in the manifold runner below the blower
and then what is injected above the blower,
at least six nozzles.
per cylinder.
most top fuel fuel pumps
can pump from 85 to a 100gallons per minute.
cant imagine why the cylinder would hydralic when
the spark plugs stop turning it all too gas!

[Barry B]

cliff gould said:

this is only running one nozzle.
top fuel setups have
two nozzles by the inlet valve.
one or two in the manifold runner below the blower
and then what is injected above the blower,
at least six nozzles.
per cylinder.
most top fuel fuel pumps
can pump from 85 to a 100gallons per minute.
cant imagine why the cylinder would hydralic when
the spark plugs stop turning it all too gas!

As Ribaric said... 'kin 'ell !!! Now it is begining to boggle the mind, all that fuel literally gushing in and just two spark plugs to light it, 'kin unbefuffinglievable would best sum it up.

[Jon C]

I think it was Barry Sheavills who once said that the spark plugs are pretty much gone by 1000 feet and the engine is basically dieseling from there on. Is that right Cliff?

[Burndown]

Do Fuel Cars run fuel returns to the tank, surly u cant be putting 80-100 gallons per minute directly into the motor?

[Slinky]

Burndown said:

Do Fuel Cars run fuel returns to the tank, surly u cant be putting 80-100 gallons per minute directly into the motor?

12 ish gallons in under 5 seconds.. I think it's possible..

What did Smax say about burning fuel quicker than someone could knock buckets over?

[ribaric]

I remember Barry Sheavils, just after a motor trashing 5 second pass, said he'd lifted quite early when things "didn't feel right" but the thing just kept on going anyway. He said it had "dieselled" down the track. Not much fun when it all leaned out at the top end guess.

[Tet]

Burndown said:

Do Fuel Cars run fuel returns to the tank, surly u cant be putting 80-100 gallons per minute directly into the motor?

Yes, they do have fuel returns. There's a preset valve that controls the amount of fuel flowing to the engine and the amount going back down the return. I couldn't tell you how much fuel is actually flowing, though, despite having written some software to help calculate the optimal fuel delivery throughout the run[1]. Tuners tend to guard their secrets very closely, and they're generally unwilling to show you their fuel curves. But from what I've overheard, I believe at some point in the run (~3.5s) they did flow nearly the full rate of the pump into the engine. Whether that's still true with ever increasing pump sizes (120+ gpm isn't unheard of) I couldn't say.

[1] Back when we used timers to progressively change the fuel flow rate. It's mostly done with a slide valve these days AFAIK.