# Multimedia Exchange - How a top fuel dragster works

View Full Version : How a top fuel dragster works

608kZ28
07-10-2012, 07:46 PM
i thought this was cool

HoLLo
07-11-2012, 08:08 PM
Awesome video

5w20
07-11-2012, 10:50 PM
Awesome video

good find

my bandit
07-12-2012, 04:53 PM
awesome. i remember reading somewhere that the supercharger takes more power to run then a hemi makes...
and i saw a show on speed about top fuel dragsters.. other then 2 motor mounts, the rest of the engine is held on by hose clamps :eek:

HoLLo
07-13-2012, 03:17 PM
It's odd how they can calculate the supercharger eats up 600hp, yet they don't have a dyno to handle it. Plus, it's a key component of power, it really shouldn't take any more power :confused:

my bandit
07-14-2012, 01:42 PM
It's odd how they can calculate the supercharger eats up 600hp, yet they don't have a dyno to handle it. Plus, it's a key component of power, it really shouldn't take any more power :confused:

you have to think though, the engine makes 8000hp at 50psi. if it eats up 600hp, its makes it up after a few psi haha. plus there is probably a shitload of resistance in the supercharger. and i think the reason they dont have a dyno is the fact that the gets up to speed so fast that it will not be able to get grip, it will just spin to much.

justin455
07-14-2012, 02:21 PM
It's odd how they can calculate the supercharger eats up 600hp, yet they don't have a dyno to handle it. Plus, it's a key component of power, it really shouldn't take any more power :confused:

You have to think about it like this:

(Hypothetical numbers for ease)

Engine alone makes 5,000hp

+

-

Supercharger takes 1,000hp to turn

=

7,000hp total.

So while while the supercharger does eat up 1,000hp from the engine, it also adds 3,000hp on top for a total gain of 2,000hp.

Your A/C in your car runs off the crank and when engaged it sucks up about 10hp from your engine. Same thing here except the supercharger is so big and bulky it takes a lot of power to turn, but having it on there adds exponentially more power than what it eats up.

the_merv
07-15-2012, 06:42 PM
It's odd how they can calculate the supercharger eats up 600hp, yet they don't have a dyno to handle it. Plus, it's a key component of power, it really shouldn't take any more power :confused:

Load of the Supercharger on the Engine probably based off of percentage.