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Author Topic: Thursdays in Belleville  (Read 4977 times)

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Offline jjolly

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Thursdays in Belleville
« on: May 26, 2016, 09:45:21 PM »
It is slow in the ECTA forums, so..
   I want to go faster, a novel idea I know but a legitimate one I believe.  I don't think I can find 50 more horsepower, I can't put a manual trans in before June race. I have a stiffer air dam that is much closer to the ground.  I am thinking about lowering rear 2 inches.  Without going to mass quantities of duct tape and nitrous, any suggestions for getting 500 more RPM in the lights? On 187 pass I shifted my C4 at 8000 and went across the line at 7000. I think I may be able to accelerate a little harder from the start and I can raise shift points 500 rpm. Since I have nothing else to do but ponder the ever so slight possibility of a 200 mph pass, I might as well run it by the old internet bunch. Thoughts?

Offline petercalaguiro

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Re: Thursdays in Belleville
« Reply #1 on: May 27, 2016, 07:57:41 AM »
Aero, aero, aero.
Make it low , add lower side valances, make the nose smooth and close to the ground. Close off the front end.
Add a spoiler to smooth the back end. Add vortex tabs if legal for your class.
Aero, aero, aero.
Peter
02G0250

Offline jjolly

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Re: Thursdays in Belleville
« Reply #2 on: May 27, 2016, 08:27:33 AM »
Can't add anything as far as I know. No skirts, no wings no blocking off front no body mods. Will just go low as I can go!

Offline bearingburner

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Re: Thursdays in Belleville
« Reply #3 on: May 27, 2016, 02:00:32 PM »
Run what you brung in TO

Offline ronnieroadster

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Re: Thursdays in Belleville
« Reply #4 on: May 27, 2016, 02:36:42 PM »
 Going lower especially in the front will help. Im unable to tell from the photo what type of rear tire your running. If its a drag radial the tire growing at speed will help you with a gear change. At speeds above 170 or so the Mickey Thompson drag radials I run grow an inch and more thus adding a better top end gear with no need to add more RPM for a faster speed.  :cheers:
   
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 ECTA  XF/BGRMR Record 179.8561
 LTA    XF/BGRMR  Record 200.921 First  Ever Ford Flathead Roadster to hit 200 MPH burning gasoline July 2018
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Offline SPARKY

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Re: Thursdays in Belleville
« Reply #5 on: May 27, 2016, 05:32:36 PM »
What kind of rear axle do you have?
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Offline jjolly

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Re: Thursdays in Belleville
« Reply #6 on: May 27, 2016, 07:15:57 PM »
2.73 8.8 with
 255/50/16 Hankook Ventus Z214 (25.9")

Offline ronnieroadster

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Re: Thursdays in Belleville
« Reply #7 on: May 30, 2016, 09:19:40 AM »
2.73 8.8 with
 255/50/16 Hankook Ventus Z214 (25.9")






  Using my Gear ratio computer from Mark Williams if you run a 26 inch diameter drag radial that grows one inch at the speed gear ratio and RPM your already doing the figures I see will put you at 200 MPH at 6850 RPM.
As Joe Timney would say horse power man.   :cheers:
Working in the shop I use the 'F' word a lot. No not that word these words Focus and Finish go Fast and Flathead Ford!
 ECTA  XF/BGRMR Record 179.8561
 LTA    XF/BGRMR  Record 200.921 First  Ever Ford Flathead Roadster to hit 200 MPH burning gasoline July 2018
 SCTA  XF/BGRMR Record 195.650
 SCTA  XXF/BGRMR Record 216.131 plus a Red Hat
"Life Member of the Bonneville 200 MPH Club"

Offline jjolly

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Re: Thursdays in Belleville
« Reply #8 on: May 30, 2016, 08:04:54 PM »
My Hoosier drag radials after 1 pass at Ohio, then there is converter slippage.

Online Stan Back

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Re: Thursdays in Belleville
« Reply #9 on: May 30, 2016, 08:36:57 PM »
Maybe it's a good thing that it didn't hook up(?).
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Offline Stainless1

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Re: Thursdays in Belleville
« Reply #10 on: May 30, 2016, 08:58:48 PM »
Well if your tach is accurate, and your tires did not grow, you are slipping 5% somewhere.  The tire looks like it might be slipping.  If it is then you have enough power, but not enough traction, that means you need better aero.  Or you need to improve traction...
7000 puts you at almost 198, you need another 100 to go 200
 :cheers:
Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.

Offline jjolly

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Re: Thursdays in Belleville
« Reply #11 on: May 31, 2016, 04:56:17 AM »
Those tore up tires went 165 through the mufflers. I changed the tires and ran 178 through mufflers. I removed the mufflers and went 187. I know the converter slips at least 500 rpm. It is a custom built 3000 stall converter. I will have a manual trans in it right after the June race. I think I am going with a close ratio toplaoader. Can't seem to find a close ratio TKO and can't afford a Jerico.  For June I have a little more air dam and will just try and launch a little harder. May up the rpm 500 on the shifts too. Would be happy getting into the 190's with my C4 automatic. I may try and run at Loring this year and 1.5 mile pass should bring on another bunch of challenges~https://www.facebook.com/Joe-Jolly-Land-Speed-Racing-974513759273716/


Offline Stainless1

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Re: Thursdays in Belleville
« Reply #12 on: May 31, 2016, 11:21:21 AM »
if your converter slips 500 and your tires grow 1/2 inch you go 187....
either way... better aero will help  :cheers:
Stainless
Red Hat 228.039, 2001, 65ci, MSA Bockscar Lakester with a little N20 
MSA Bockscar Lakester #1000 my fastest mile 245 and change, 84 ci turbobusa motor... but Corey's 233 MPH H/BFL record is still 3MPH faster than mine.