COPO, Drag-Pak, CJ II, (FX) Secrets

[Billy Nees]

Originally Posted by Mark Yacavone

We hear that the COPOs don't use drive by wire. Do the others?

I'm pretty sure that the FFFords come as DBWs. I don't know about the DPs but I have heard a rumor that Larry Hill's DP uses a piece of string tied on the TB and looped around his big toe.

[442OLDS]

I don't know how much of a speed secret it would be,but it couldn't hurt.
The 9 inch tires that you are referring to are not really 9 inch tires.
Goodyear came out with a wider one in 2022,and Hoosier is making an even wider one in 2023.

[Doug Hoven]

Originally Posted by Billy Nees

I'm pretty sure that the FFFords come as DBWs. I don't know about the DPs but I have heard a rumor that Larry Hill's DP uses a piece of string tied on the TB and looped around his big toe.

I know the CJs we’re DBW from the factory, but I believe some have converted them to cable. The couple of factory showdown COPOs I have been around we’re all cable throttle. As far as getting down the track, mostly it’s in the tune. A lot of timing pulled on the launch. Not sure about boost control.

[bigshow2966]

Geoff Turk is really covering the build of his BlackbirdX on Facebook. He hasn't put pedals in it yet, but has started the motor. I would guess his is DBW. They are on a 10.5 tire.

[Keith 944]

i know jack has nothing to hide as i have seen him blow the tires off many times, however i have been watching a blue cobra jet that leaves like a four cyl. and come alive like a banshee going down track, so if its allowed, dbw, percentage is prob. whats happening, it seemed much more likely than just pulling timing, but is more than certain some form of traction control and from what i saw, it was deadly....

[GUMP]

It really doesn't make a lot of sense to take the throttle out. Modern ECU's have almost infinite control of timing. Shocks, tires, and gearing might want to be added into the equation when trying to figure out what makes the supercharged cars work so well?

I can tell you that every COPO that I have campaigned has run without limiting the throttle by anything other than the drivers foot.

[Brett C]

Originally Posted by Keith 944

i know jack has nothing to hide as i have seen him blow the tires off many times, however i have been watching a blue cobra jet that leaves like a four cyl. and come alive like a banshee going down track, so if its allowed, dbw, percentage is prob. whats happening, it seemed much more likely than just pulling timing, but is more than certain some form of traction control and from what i saw, it was deadly....

Timing & fuel.

[Keith 944]

Seems to work very well, maybe some of the other fast cars will take note! I understand you can achieve this with a grid ignition but I know absolutely nothing about ecu’s and how they can be tuned for this. It must be a fine line between a true traction control and pre set parameters. Is tech checking for this? I do know that they can check the grid for an arc module. I have been checked 2xs for that and 2xs for other electronics. I’m glad they did take the time to check. Just wondering if this is done to the new computer cars and drive by wire and the like. I must admit watching an 8 sec car on a small tire leave so soft was very interesting

[Mike Jones]

Originally Posted by bigshow2966

Geoff Turk is really covering the build of his BlackbirdX on Facebook. He hasn't put pedals in it yet, but has started the motor. I would guess his is DBW. They are on a 10.5 tire.

https://www.facebook.com/search/top?q=geoff%20turk

[Mark Yacavone]

Originally Posted by bigshow2966

Geoff Turk is really covering the build of his BlackbirdX on Facebook. He hasn't put pedals in it yet, but has started the motor. I would guess his is DBW. They are on a 10.5 tire.

Thanks but the new Comp type class is not pertinent here.

They're all FX cars, by definition (Super Stockers)