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Valdosta Ga. Cycle Drags
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Glassnose Aficionado
Supporting Member of Barthmobile.com 2/09
Picture of Danny Z
posted
Leaving this morning for the Man Cup World championship weekend. First camping trip with the new Barth and I'm feeling a lot more comfortable about it than I would have with the Euro. My buddies are already there for test and tune and they say the place is jammed with racers. Should be at least 5 four cyl Top fuelers, and a lot of V Twin Top Fuelers, so we're expecting a lot of 6 second passes.
If you're into that sort of thing it will be live streamed. You can find out where on the Man Cup site. Sunday at noon the big boys start the show so you won't have to wait around wondering when they will run.


Dan & Suzy Z
'81 Euro 28 - Slide Show
454 Chevy


Venice, Florida
 
Posts: 3446 | Location: Venice Fl. | Member Since: 07-12-2004Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 6/12
Formally known as "Humbojb"
Picture of Jim and Tere
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Send pics of your new ride if you can.
J


Jim and TereJim and Tere

1985 Regal
29' Chevy 454 P32
8411 3172 29FP3B
Gear Vendor 6 Speed Tranny
 
Posts: 3187 | Location: madisonville tn usa | Member Since: 02-19-2005Reply With QuoteReport This Post
Glassnose Aficionado
Supporting Member of Barthmobile.com 2/09
Picture of Danny Z
posted Hide Post
Back home safe and sound. The new coach ran pretty bad but nothing that can't be fixed. It was really too long of a trip for a shakedown, and Richard told me about the carb so I can't blame him at all. The coach was a dream to drive and a dream to camp in at the track, the genny started a little rough but after a few minutes smoothed right out, and every system worked perfectly.
Now to get the engine running nice and smooth for Hillsborough!
As for the racing, we saw 2 world records in one run. Larry "Spider-Man" Mc Bride ran a 4.61 at 268 MPH, both records for motorcycles. Not a single wreck all weekend, and I consider that a good thing.


Dan & Suzy Z
'81 Euro 28 - Slide Show
454 Chevy


Venice, Florida
 
Posts: 3446 | Location: Venice Fl. | Member Since: 07-12-2004Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 7/17
Picture of Steve VW
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OMG... 1/4 mile, 0-268 mph, 4.61 sec. confusion

Holy crap.. thinking about G forces... must be like the space shuttle launches.

Let's see...my physics teacher told me distance equals one half the acceleration, times the square of the time...

so acceleration equals 2 times the distance divided by time squared?

1/4 mile is 5280 ft/4 = 1320 ft. = distance (x 2 = 2640 ft)

time squared is 4.61 x 4.61 = 21.25 sec.sec

so: a = 2640 ft/21.25 sec.sec = 124.2 ft/sec/sec

(1 G = 32 ft/sec/sec) so: 124.2 / 32 = 3.88 G
Whoa... Keep in mind, this is the AVERAGE G FORCE!!! confusion

We all know the bikes come on stronger early and are leveling out at the end, so the maximum G force early in the race is m more!
(For me this would mean extra trousers needed!) confusion


8607-3346-33TFPOB------9708-M0037-37MM-01
86 Regal SE 33 Tag axle--"98" Monarch 37
Chev P3(7) 454TBI--------Cummins 8.3 300 hp
400 hp fuel injected-------6 spd Allison, Spartan MM
 
Posts: 3252 | Location: Kalkaska, MI | Member Since: 02-04-2011Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 9/17
Picture of Duane88
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Only a Barth nut would take the time to consider the force on ones buns, while screaming down a race track.


25 Ft Glassnose, 2792, 1982
454 Engine
Plain Jane Interior
Original Paint
Fire light Picture by Kevin, GTG 2017 Ohio
 
Posts: 205 | Location: Clinton Iowa | Member Since: 04-02-2017Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 7/17
Picture of Steve VW
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Yeah, call me weird, inquiring minds just had to know... ROTFLMAO

(I was just trying to figure out if I'd be strong enough to hang on! NOT! I would have to be able to pull back over three times my weight)

Now, if I weighed 25 lbs...

Ed (Mwrench) could tell us more about the acceleration vs distance from the split times he records at his races.


8607-3346-33TFPOB------9708-M0037-37MM-01
86 Regal SE 33 Tag axle--"98" Monarch 37
Chev P3(7) 454TBI--------Cummins 8.3 300 hp
400 hp fuel injected-------6 spd Allison, Spartan MM
 
Posts: 3252 | Location: Kalkaska, MI | Member Since: 02-04-2011Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 9/17
Picture of Duane88
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The shape of the seat must absorb a bunch of the load through ones ass and thighs. When the chute pops and the deceleration load tries to send you over the handle bars what do you hold on to??


25 Ft Glassnose, 2792, 1982
454 Engine
Plain Jane Interior
Original Paint
Fire light Picture by Kevin, GTG 2017 Ohio
 
Posts: 205 | Location: Clinton Iowa | Member Since: 04-02-2017Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 10/08
Picture of MWrench
posted Hide Post
quote:
Originally posted by Steve VW:
OMG... 1/4 mile, 0-268 mph, 4.61 sec. confusion

1/4 mile is 5280 ft/4 = 1056 ft. = distance (x 2 = 2112 ft)

Whoa... Keep in mind, this is the AVERAGE G FORCE!!! confusion


Ummm, Steve is your cell phone calculator or memory bank acting up. 1/4 mile is 1320ft X2 =2640. G force is about 5.401.

I don't do ET at my events only speed at the 1/4, 1/2 and end of the mile run. Never saw anyone loose it at start but on shut down 1/2-3/4 mile there have been a few down. I have also seen a guy get blown off the bike when he straightened up after the finish. He didn't realize the wind drag his body presents at 250 MPH. Cross wind is a big factor at my events, wind can vary a lot in a mile run.

Texas Mile results are on their website now Here:
Texas Mile Oct results

For some reason the fastest bike didn't get posted, he did 255.6 MPH in the mile.


Ed
94 30' Breakaway #3864
30-BS-6B side entry
230 Cummins, Allison 6 speed
Spartan chassis
K9DVC
 
Posts: 1897 | Location: Los Gatos, CA | Member Since: 12-08-2005Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 8/16
Picture of Kevin
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quote:
Originally posted by Steve VW:
(For me this would mean extra trousers needed!) confusion

hmm Would be easier (if you have underwear on) to just wear the inside out? hmm
 
Posts: 2625 | Location: Northeast , Ohio | Member Since: 07-29-2012Reply With QuoteReport This Post
Glassnose Aficionado
Supporting Member of Barthmobile.com 2/09
Picture of Danny Z
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Not the pass from this weekend but it will give you an idea of what these 1500 hp 17 foot long rockets will do. https://www.bing.com/videos/se...0F474789&FORM=VIREll do.


Dan & Suzy Z
'81 Euro 28 - Slide Show
454 Chevy


Venice, Florida
 
Posts: 3446 | Location: Venice Fl. | Member Since: 07-12-2004Reply With QuoteReport This Post
Glassnose Aficionado
Supporting Member of Barthmobile.com 2/09
Picture of Danny Z
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And one more from Saturday night. https://www.facebook.com/racem...os/1457329417657287/ If you look in the stands I'n standing with the white hat and Suzie is sitting next to me.


Dan & Suzy Z
'81 Euro 28 - Slide Show
454 Chevy


Venice, Florida
 
Posts: 3446 | Location: Venice Fl. | Member Since: 07-12-2004Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 7/17
Picture of Steve VW
posted Hide Post
quote:
Originally posted by MWrench:

Ummm, Steve is your cell phone calculator or memory bank acting up. 1/4 mile is 1320ft X2 =2640. G force is about 5.401.


I redid the calcs now I'm getting 3.88 Gs

Dam phone calculator keypad anyway. (I'm no good at texting either) head bang

With split distances and velocity we could approximate averages for other sections.

I suspect the maximum Gs begin as the tire hooks up for full traction. From there on out it is torque vs rpm through the rest of the power band, probably keep increasing with today's boosted engines. Wow

Those guys are FLYING! confusion

(Actually the trousers wouldn't be for traction, more for containment!) ROTFLMAO


8607-3346-33TFPOB------9708-M0037-37MM-01
86 Regal SE 33 Tag axle--"98" Monarch 37
Chev P3(7) 454TBI--------Cummins 8.3 300 hp
400 hp fuel injected-------6 spd Allison, Spartan MM
 
Posts: 3252 | Location: Kalkaska, MI | Member Since: 02-04-2011Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 9/17
Picture of Duane88
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Geez, this is getting out of hand, what about shift points, always a G-force snap increase in a speed shift.


25 Ft Glassnose, 2792, 1982
454 Engine
Plain Jane Interior
Original Paint
Fire light Picture by Kevin, GTG 2017 Ohio
 
Posts: 205 | Location: Clinton Iowa | Member Since: 04-02-2017Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 7/17
Picture of Steve VW
posted Hide Post
quote:
Originally posted by Duane88:
Geez, this is getting out of hand, what about shift points, always a G-force snap increase in a speed shift.


For sure, this is by no means simple business. Even with today's fancy computers they spend a fortune to get it right. So many variables it boggles the mind, machine, tires, track conditions, temp, humidity, human factors.

Bottom line: I'd still need those trousers ROTFLMAO


8607-3346-33TFPOB------9708-M0037-37MM-01
86 Regal SE 33 Tag axle--"98" Monarch 37
Chev P3(7) 454TBI--------Cummins 8.3 300 hp
400 hp fuel injected-------6 spd Allison, Spartan MM
 
Posts: 3252 | Location: Kalkaska, MI | Member Since: 02-04-2011Reply With QuoteReport This Post
Supporting Member of Barthmobile.com 9/17
Picture of Duane88
posted Hide Post
Those drivers are so damn skinny they probably haven't eaten for like a week before they race, hence no poop!!


25 Ft Glassnose, 2792, 1982
454 Engine
Plain Jane Interior
Original Paint
Fire light Picture by Kevin, GTG 2017 Ohio
 
Posts: 205 | Location: Clinton Iowa | Member Since: 04-02-2017Reply With QuoteReport This Post
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