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Old 03-08-2004, 02:00 PM   #1
annointed
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Default C16 vs. Sunoco 104+toluene vs. water injection

I'm hitting the track on Friday, and I want to run my car on race gas instead of water injection (-20 washer fluid injection to be exact).

Am I probably safe to run on my dyno tuned water injection map, even though it'll be race fuel instead of WI? I only had two maps for my car dyno tuned...pump gas, and pump gas+WI.

I'd assume I'll be fine if I use c16...I think I'll also be fine if I use a two gallons of tolune and a gallon or two of Sunoco GT104 on an otherwise empty tank...but I wanted to see what peeps think here on the board, too.
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Old 03-08-2004, 05:11 PM   #2
mikaust
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Are you tuned for c-16? if so c-16 is the best choice.
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Old 03-08-2004, 05:36 PM   #3
Element Tuning
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C16 would be a waste of money on a water injection/pump gas map. The GT104 should be fine as long as you don't increase boost too much.

Thanks,
Phil (motoxphil)
www.elementtuning.com
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Old 03-08-2004, 05:41 PM   #4
annointed
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Cool. I'll be running 24 psi, which is my usual WI boost level.
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Old 03-08-2004, 08:16 PM   #5
mr2guru
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C16 is power making potion
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Old 03-08-2004, 08:22 PM   #6
annointed
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I have no c16 or race fuel map.

I'm just wondering/trying to confirm if toluene+GT104 provide enough octane cushion for me to run the WI map, which drastically leans out A/F (~12:1, so not too crazy), adds timing, and runs at 24 psi.

I doubt the GT104 alone would suffice, but with two gallons of toluene on top of a little GT104, I think I'll be fine on this map.
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Old 03-09-2004, 02:47 AM   #7
Trav4011
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Toluene is VERY VERY bad stuff... Just use some C16 to be safe.. to your car..... and everyone else around you.
Travis
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Old 03-09-2004, 03:40 AM   #8
PaulRex
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Quote:
Originally posted by Trav4011
Toluene is VERY VERY bad stuff... Just use some C16 to be safe.. to your car..... and everyone else around you.
Travis
Why is toluene so bad? Some people swear by that stuff
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Old 03-09-2004, 08:30 AM   #9
hotrod
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Default C16

Given that C16 fuel contains 10% aromatic content ( translation -- aromatic is mostly toluene) it is not a big deal.

Some unleaded high octane fuels contain up to 45% aromatic hydrocarbons.

Here's the MSDS sheet for Marathon Premium unleaded as an example.
http://www.mapl.com/msds/msds/126mar019.html


Here's the fuel composition limits in Australia.
http://www.aip.com.au/pdf/fuel_%20regs.pdf

Larry
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