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Old 10-24-2006, 12:50 PM   #1
metoo
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Default plot request: 50/50 denatured vs 100%

Anyone done a dyno tune on 50/50 then switched to 100 and new tune? I would like to see the plots. I've read a couple people saying that there is little difference if any, but I wanna see. I haven't found dyno plots with this comparison yet. Basically, if there is nearlyt no difference in power onset and only 2-3whp difference. I would be willing to take the power loss to save $5-$7 every 2 tanks of gas.
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Old 10-24-2006, 04:49 PM   #2
hippy
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For what it's worth, having some dyno plots means nothing since things can be done so many different ways. I can tune the same car on different mixes and get the same power levels, and I can do the same and get different power levels. You might say that both should be at the same boost, same a/f ratio, same timing, and/or have the same liquid flow, but what if you can run more boost on one mixture then another even though you're running less flow?

What if the person doing the test just gets more power from one because he can tune that mixture better then another because of his tuning style, or because his injection system is just more effective with a given mixture? This imo is the reason most people think you can get more power with alc and or a mix then with just water. They have injection systems which aren't made to run pure water, and the end result of them not getting as much power as with a mix was not avoidable. Then they say they got so much more power with 100% alc or 50/50 then with pure water, and every newbie who reads it thinks that's cause water isn't as effective as other mixes. My point is that I don't think you're going to find what you're looking for here, or anywhere else. It might not even be possible to answer the question of which can possibly help an engine get more power. Just some food for thought I guess.

peace
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Old 10-24-2006, 06:30 PM   #3
Aquamist
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I agree with Hippy 100% on this...

Posting a logged file is more meaningful than power plot.
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Old 10-24-2006, 06:56 PM   #4
Token-Negro
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Quote:
Originally Posted by hippy View Post
For what it's worth, having some dyno plots means nothing since things can be done so many different ways. I can tune the same car on different mixes and get the same power levels, and I can do the same and get different power levels. You might say that both should be at the same boost, same a/f ratio, same timing, and/or have the same liquid flow, but what if you can run more boost on one mixture then another even though you're running less flow?

What if the person doing the test just gets more power from one because he can tune that mixture better then another because of his tuning style, or because his injection system is just more effective with a given mixture? This imo is the reason most people think you can get more power with alc and or a mix then with just water. They have injection systems which aren't made to run pure water, and the end result of them not getting as much power as with a mix was not avoidable. Then they say they got so much more power with 100% alc or 50/50 then with pure water, and every newbie who reads it thinks that's cause water isn't as effective as other mixes. My point is that I don't think you're going to find what you're looking for here, or anywhere else. It might not even be possible to answer the question of which can possibly help an engine get more power. Just some food for thought I guess.

peace
Your just no fun to have, around here u keep posting what i would say I agree with you once again.
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Old 10-24-2006, 08:02 PM   #5
metoo
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I know that the mix itself is not where the power is. Of course it is in the tune, otherwise the inquiry would be stupid. Everyone knows that when you see a car's 93 octane pump gas plot and there V16 race gas plot, the tuning is different. I expect the same here. I want to see what the tuner was able to get with 100% alk that he couldn't get with 50/50. If there is no....or very little difference, I'd like to know that.
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Old 10-25-2006, 02:59 AM   #6
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From track experience, my evo traps within 2mph going from 50% to 100%...So I tend to run 75% most of the time...
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