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Old 05-25-2004, 06:36 PM   #1
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Had a CAD software problem at work today. One of the software support guys (who I vaguely know) came down to me desk to help out. He saw my browser with BC, and brought up his own toy

Enjoy!

http://www.onehotchilipepper.com/index.htm
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Old 05-25-2004, 06:41 PM   #2
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7.568 @ 175.4mph!!!
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Old 05-25-2004, 09:56 PM   #3
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Thats an awesome site.....loved the avi clips

Also a good link to an Oregon thermal coating site in there.....may need some work done while I'm in oregon this summer
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Old 05-25-2004, 10:54 PM   #4
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That is a bad lil Dragster!
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Old 05-26-2004, 05:20 PM   #5
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Been bouncing emails back and forth with Chris (owner/builder/driver). Here'* a snipit for ya'll

Quote:
Hi Bill,

Thanks for the info. Nitro is $17 a gallon, so toluene is sounding cheap! I would run toluene in place of the methanol though, and alky is only $2 a gallon. Price per pass would increase. Oh well.

I don't work with octane though, I need the stoiciometric number for it. Do you know how the octane of Toluene compares to Methanol?

I have a hairy spreadsheet that calculates the AFR that I need and coverts this to pill size and pressure for my Hilborn mechanical fuel injection based on:

- Temp, humidity, barometric pressure
- Displacement & volumetric efficiency of the motor
- The specific gravity of the fuel

It says for 57% nitro (and the rest alcohol), I should be running a 2.2:1 AFR. I ran a 1.6:1 last year and did ok (7.64 ET). At the event last month, I leaned it out to a 1.9:1 AFR and zoomed to a 7.56! I'll lean it a little more, but at some point, nitro begins eating aluminum and iron. I need to stop just short of there 8^)

With nitro I fight the compression ratio and detonation. If toluene can help prevent that better than methanol, I could run more timing and get more of that nitro burned (more power). I'm blowing a lot of it out the pipes as it is. If I run more than 42 degrees of timing for the nitro, detonation eats my crankshaft.

Does toluene burn carbonless like methanol and nitro? I'll have to do an experiment to see if nitro and toluene and methanol will stay mixed. After 8%, nitro falls out of suspension in gasoline. Nitro is an octane increaser as well. Let me know if you'd like to try some. I bet 6-8% would make a noticable improvement in your performance.

Yes, I'd be interested to see your spreadsheet!

Thanks for the info,
Chris
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Old 05-26-2004, 08:10 PM   #6
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I was all over that site last night and today at work.........cool stuff to say the least.

Maybe for west coast bonne fest he can come out and blow our ear drums
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Old 05-26-2004, 09:17 PM   #7
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Methinks I'll work up a little friendly chat with him over the next 3 or 4 weeks, then pop the question

Chris is a really cool guy. Sounds like we'll be swapping some chemical additives soon for testing in each other'* cars.
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