John Force taken to hospital after wreck
- Thread starter MadMardigan
- Start date
- Replies 16
- Views 659
I saw this earlier today.
John Force is a character. A fun guy to watch. Saw him race many-a-time back in the day at the Gator Nationals. Hope he comes out ok.
These cars..insane. They only make nitro-methane fuel for one reason, and you see it in the vid above.
John Force is a character. A fun guy to watch. Saw him race many-a-time back in the day at the Gator Nationals. Hope he comes out ok.
These cars..insane. They only make nitro-methane fuel for one reason, and you see it in the vid above.
Prayers sent for John and family.
The Forces really have had some bad luck the start of this season. Prayers out for the Forces.
What rev limiter?
John has been released from the hospital. He is doing a FB live interview tomorrow at noon thirty to discuss the crash.
Last edited:
The NHRA mandated rev limiter.... Its there in tech and it functions in tech, but its not used as initally intended...
The rev-limiter is now used as a form of timing retard early in the run, thus rendering it useless later in the run. The clutches are locking up earlier and engines are attaining a higher RPM range in the lights. Its no real big secret.. They are all doing it. They are starting to run 330 + ( in 1,000ft.) everywhere they go. Lots of 295+ MPH at half-track ( 660' ) this weekend in Chandler. Engine Speed = Wheel Speed. The engines are running at higher rpm than ever before. Force has developed "big radius" F/C zoomies to help the flow at high rpm. The "old" tight radius zoomies reached their design/performance limit.
Ok we are taking about different things. I assumed you ment an actual rev limiter like a studder box. What you are referring to is timing control. We can pull timing as a means of TRYING to control engine speed. Doesn't always work. And the headers you are thinking about have nothing to do with "radius". There is different angle to the pipe. Pipes are still the same size. They were 30* back when Beckman started toying around with the idea of using exhaust thrust to provide forward propulsion as well as down force. John Force really had nothing to do with that. New for 2018 is 42* which Courtney has already ran 335 with the new 42* headers. As far as the clutch "locking up" we can control that. We can control how much and how fast the secondary clutches engage. We can control how much the clutch slips through out the whole run. Mainly up to the tune of the car, track conditions.
Last edited:
There is a NHRA mandated physical rev limiter attatchment that plugs into the map control module... The timing control map has nothing to do with it.. Separate system..
I never said anything about header angle (layback).. Look at the photo above... Compare Forces new "big radius" header to Linebergs old "small radius" header...
Who is "We"??
Last edited:
They can diesel. They run at the verge of being hydrolock.
View attachment 43344
They wont run on compression alone. Too much fuel volume. Otherwise it wouldnt drop cylinders. It had a cylinder out from the start. Both plugs in that cylinder were not firing and the cylinder did not fire on compression. It was too "wet"
By bypassing the revlimiter early, the engine speed is allowed to climb higher ( more rpms = more pump speed/more pressure ). The manifold distribution gets messed up when they drop cylinders and the engine filled up with fuel and hydrauliced.
JFR, DSR & Kalitta cars all experienced catastrophic engine explosions for the same reason... High RPM across the finishline in killer atmospheric conditions...
Here's one of my good "engine" shots from a few years back..
They wont run on compression alone. Too much fuel volume. Otherwise it wouldnt drop cylinders. It had a cylinder out from the start. Both plugs in that cylinder were not firing and the cylinder did not fire on compression. It was too "wet"
By bypassing the revlimiter early, the engine speed is allowed to climb higher ( more rpms = more pump speed/more pressure ). The manifold distribution gets messed up when they drop cylinders and the engine filled up with fuel and hydrauliced.
JFR, DSR & Kalitta cars all experienced catastrophic engine explosions for the same reason... High RPM across the finishline in killer atmospheric conditions...
Here's one of my good "engine" shots from a few years back..
Last edited:
The performance of these engines is incredible.
I had seen many forms of auto racing. From all types of bikes and cars up to Indy, CART, and Motogp, NASCAR, etc.
Nothing even began to prepare me for standing 300’ up the track at Infineon when a top fuel dragster launched. In fact just hearing an engine start up across the paddock made me want to run because I thought a bomb went off or a terrorist attack was occurring or something, lol!
It shocked me to my core! 10,000+ HP ain’t no joke!
Edit: and I have to say TV doesn’t even begin to do it justice.
I had seen many forms of auto racing. From all types of bikes and cars up to Indy, CART, and Motogp, NASCAR, etc.
Nothing even began to prepare me for standing 300’ up the track at Infineon when a top fuel dragster launched. In fact just hearing an engine start up across the paddock made me want to run because I thought a bomb went off or a terrorist attack was occurring or something, lol!
It shocked me to my core! 10,000+ HP ain’t no joke!
Edit: and I have to say TV doesn’t even begin to do it justice.
Last edited:
