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DC Water Jet's 202mph Z-Car


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#221 HowlerMonkey

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Posted 05 September 2013 - 03:08 PM

I understand bonneville is the big event but has anybody contemplated or attempted doing this on concrete or asphalt such as a runway.

 

I'm sure there is a sweet spot where the traction advantage would allow certain class cars to go faster in a standing mile and some tracks can offer 1.5 miles of running room with at least .5 mile cooldown.

 

We might be able to finalize our exclusive access to host events at the everglades jetport in miami and could very well spawn a timing association in which we simply use a "template" by using a lot of the "definitions" as defined by various timing associations and adapting them for running on the runway.

 

Some classes would probably never run faster on a 1.5 mile runway than they would on salt but I'll bet a few just might go faster.

 

Have you guys done the math for your salt cars to see whether it would be worth it to try a runway run?



#222 LVSALT

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Posted 05 September 2013 - 04:45 PM

 Howler Monkey,

 

There are  cars and bikes that run in Maine,Ohio,Texas and Mojave. with our car we just run at Bonneville. Maybe El Mirage or Mojave someday.

 

  Gary


Edited by LVSALT, 05 September 2013 - 04:47 PM.


#223 RebekahsZ

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Posted 05 September 2013 - 08:49 PM

Yeah, I would love to do a straight line speed thing, but I'm afraid to subject my chassis to salt.

1972 240z, purchased in 1991 for $900. Bone stock LS2/T56/DBW from 2006 GTO, swap completed in 2011. 400rwhp/435 rwtq. 2400# minus driver. JCI swap, Mantic ER2 clutch kit, JTR headers, single exhaust, Borla muffler, MGW shifter, M2 Differentials shortened Z31 CV axles, Z31 CLSD R200, Chequered Flag Racing billet stubs and companion flanges. MSD 2-step, Hurst roll control, both operated from switches on clutch pedal. 9" Hoosier drag slicks on Weld Draglites, 245/45/16 Hoosier A6/R6 on 16X8+10 Rota RBR. 225/250 sectioned coilovers, Koni 8610-1437RACE shocks, DP and EMI camber plates, MM shortened rear control arms, TTT front control arms, poly and aluminum bushings. Top speeds: Ohio Mile 174mph, C/GMS class record holder, best 1/8 mile 6.96 at 100mph, best 1/4-mile 11.0 at 126mph, best 60' 1.43, best 1/2-mile 148mph at GA 1/2-mile. Home Track-Jake's Dragway, Moulton, AL. SCCA autocross club - TVR, Huntsville, AL. Lets race!


#224 HowlerMonkey

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Posted 06 September 2013 - 08:35 AM

It was more of a question as to whether you thought your car could reach a higher top speed in 1.5 miles on concrete or ashpalt rather than salt.

 

I'm sure come cars can but was interested in whether your large amount of experience with your well developed ride has indicated that it is possible?



#225 LVSALT

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Posted 06 September 2013 - 08:21 PM

Havent  really thought about it with our car but I know some of the turbo bike speeds have been faster on the pavement.



#226 Tony D

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Posted 06 September 2013 - 08:54 PM

Bonneville is a long course, miles in fact. That is why there are higher speeds. If you want comparisons on traction Maxton & ElMirage would be a good Comparo Maxton is a Mile, concrete...El Mirage is 1.3 miles Dry Lake Bed. Burton Brown runs Maxton, and Andy Flagg's #220 runs El Mirage, the speeds should tell the tale if the Maxton Records are reflective of the traction difference.

As mentioned, now competitors can also run on Mojave which is asphalt. OEM's use closed Wurtsmith AFB Michigan for closed-course high speed testing as well. Old SAC B52 Base home to regional SCCA Stuff in the summer on the old ops apron. I think the course in Maine is similarly situated, old Northern Tier SAC Runway.

Edited by Tony D, 06 September 2013 - 08:59 PM.

Misanthropic Anthroparion Class 5 Hoarder, aspiring to posthumous fame as my containers are cut open and the market floods with crap I've squirrelled away over the years! I endeavour to persevere...

#227 HowlerMonkey

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Posted 15 September 2013 - 02:46 PM

We're going to inspect the above mentioned everglades jetport soon for LSR feasibility.

 

https://maps.google....&gl=US&hl=en-US

 

We've got exclusive access to the shuttle landing facility but the costs are unbelievable and use it only for nascar and lemans teams to come over and test as well as our own aero testing since it has smooth, shallow groove, and deep groove concrete portions which offer more traction than any surface other than a well prepped drag strip.



#228 RebekahsZ

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Posted 17 March 2014 - 07:22 PM

I am going to ECTA standing 1-mile at Wilmington, Ohio in June to put the car thru tech inspection only with the purpose of returning home with a to-do list to run in 2015 with safety mods to allow me to run up to 175mph.  By 2015 I hope to have the car set to run in the C/GMP class, the corresponding Fuel class (NO2), and the related street classes.   I have read the rule book, but there are still some vague areas that I can't seem to get straight answers on, thus the trip this year just to tech.  Hoping to meet Mr. Burton Brown there and scour his car and brain for ideas.  Going to wannagofast.com 1/2-mile at Clayton, GA this September for some chassis/tire shake down runs.  Proving my sincerity by registering and showing up.  ECTA is not requiring me to pay registration and they say that they are happy to tech the car.  Clayton, GA registration is April 11 and I plan to be standing on the send button at 12:01 midnight in order to get registered.

 

I have read every post in this thread tonight.  I found it interesting that the coefficient of drag is roughly the same for the z with the windows up and the windows down.  Am I reading the wind tunnel chart correctly?  Seems hard to believe.

 

I would like to ask Tony D and LVSALT some high speed tire balancing and true-ing questions.  After months of research, I haven't found a bit of info on how to ensure tires are balanced and true up to 200mph.   Is it appropriate to ask them on this thread, or would you prefer direct contact by PM?


1972 240z, purchased in 1991 for $900. Bone stock LS2/T56/DBW from 2006 GTO, swap completed in 2011. 400rwhp/435 rwtq. 2400# minus driver. JCI swap, Mantic ER2 clutch kit, JTR headers, single exhaust, Borla muffler, MGW shifter, M2 Differentials shortened Z31 CV axles, Z31 CLSD R200, Chequered Flag Racing billet stubs and companion flanges. MSD 2-step, Hurst roll control, both operated from switches on clutch pedal. 9" Hoosier drag slicks on Weld Draglites, 245/45/16 Hoosier A6/R6 on 16X8+10 Rota RBR. 225/250 sectioned coilovers, Koni 8610-1437RACE shocks, DP and EMI camber plates, MM shortened rear control arms, TTT front control arms, poly and aluminum bushings. Top speeds: Ohio Mile 174mph, C/GMS class record holder, best 1/8 mile 6.96 at 100mph, best 1/4-mile 11.0 at 126mph, best 60' 1.43, best 1/2-mile 148mph at GA 1/2-mile. Home Track-Jake's Dragway, Moulton, AL. SCCA autocross club - TVR, Huntsville, AL. Lets race!


#229 LVSALT

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Posted 05 February 2015 - 08:33 PM

Rained out 2014, Getting ready for 2015 :D



#230 HowlerMonkey

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Posted 08 February 2015 - 08:02 PM

What do the rules say about leaving the headlight holes open and using some creative ducting to send the air to a low pressure area that won't add to lift of the car?

 

That seems like a good way to reduce "frontal area".



#231 260DET

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Posted 13 February 2015 - 01:13 AM

That's going to increase drag though isn't it.

#232 LVSALT

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Posted 14 February 2015 - 01:44 PM

HowlerMonkey,I haven't researched the rule book on this but I believe from the firewall forward we can do whatever we want in our class.  Modiied Sports.



#233 Tony D

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Posted 15 February 2015 - 04:25 PM

"What do the rules say about leaving the headlight holes open and using some creative ducting to send the air to a low pressure area that won't add to lift of the car?"

In general rules it disallows air ducting as described. Look at the section on "Air Ducts"... Scoops are allowed, but ducting from one position of high pressure to another of low pressure (except for the intake) is Verboten. Best you can do is just cover them...

It was common to run stove pipes from the firewall out the back of the car....
Great idea to make that big flat area "less big" and it got disallowed.

Not in part due to one Buick that had an engine fire in the late 60's that had those stove pipes ("repurposed" from a hotel in Wendover) start glowing red and eventually melt letting two giant 6" blowtorch nozzles blowing on either side of a repositioned driver going 213 mph.
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#234 260DET

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Posted 19 February 2015 - 11:42 PM

All this sort of air flow manipulation has been done before, it seems here as is usual that it's all up to what the rules allow. Wow. I would have thought that drag reduction would be the first priority to the extent that component cooling and induction air were allowed to the bare minimum that would not degrade overall performance. Without knowing the rules it's impossible to comment more than generally like this.

#235 LVSALT

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Posted A week ago

Attached File  IMG_5880.JPG   111.84KB   0 downloadsFor sale      Bonneville Record Holder,car has set 5 records over 200mph,Current F/BFMS record holder at 220mph

 

   minus engine,transmission,wheels and tires

 

 Fab 9inch rear end full floater

 4-link rear suspension

 front tubular A-arms.Koni coil overs

 aftermarket pinto rack

 4-wheel - Willwood disc brakes

SCTA log book

 

 $7500    Duane Cole   (702) 497-5014






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