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Old 11-18-2012, 11:07 PM   #46 (permalink)
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on our local dyno we seen multiple times, e85 gain 100hp over 93 on same boost levels, e85 will make more power than c16 but not q16
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Old 11-19-2012, 01:30 AM   #47 (permalink)
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I wouldn't consider Q16, it's so corrosive that it almost has to be treated with as much care as straight methanol. Also, as stated before, a lot of the injectors available to us are not compatible with these types of fuels.

Oxygenated fuel is awesome stuff, but if you're as picky as I am, it will require extra maintenance if you really want to keep your fuel system components and the vehicle itself in top shape.
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Old 11-19-2012, 05:48 AM   #48 (permalink)
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Alright..It'starting to make sense to me finally! Now as I see it the cooling effects of E85 has a similar effect of adding meth injection over 93, plus it burns slower so you can advance the timing close to the same as C16 without detonating, and at less than a quarter of the price of C16...Correct?
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Old 11-19-2012, 06:34 AM   #49 (permalink)
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Research Octane Number | | Motor Octane Number | | R+M/2
ethanol...........118....................96....... ........................107
regular gas .......92....................82................... ............87
E85 (summer)...113....................94.............. ...............104
C16.................119.....................117... .... .....................118
As a drag racer I feel the most important number is the Motor octane number. Research and R+M2 don't mean to much to me.
R+M/2 is the number you see at the pump. to get that number you take, research octane plus motor octane and divided by 2.
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Old 11-19-2012, 06:57 AM   #50 (permalink)
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All I can say is that it works, it works well, and if it's readily available, that's what you use.

Just make sure you put together a stout fuel system and get a good tune.
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Old 11-19-2012, 06:58 AM   #51 (permalink)
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Quote: Originally Posted by underSRTarmor View Post
Research Octane Number | | Motor Octane Number | | R+M/2
ethanol...........118....................96....... ........................107
regular gas .......92....................82................... ............87
E85 (summer)...113....................94.............. ...............104
C16.................119.....................117... .... .....................118
As a drag racer I feel the most important number is the Motor octane number. Research and R+M2 don't mean to much to me.
R+M/2 is the number you see at the pump. to get that number you take, research octane plus motor octane and divided by 2.

Thanks Brandon, this is some good info!

I think for my next project, I'll probably go back to C16
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Old 11-19-2012, 07:15 AM   #52 (permalink)
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Quote: Originally Posted by Rowdysrt View Post
on our local dyno we seen multiple times, e85 gain 100hp over 93 on same boost levels, e85 will make more power than c16 but not q16

On an SRT-4???
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Old 11-19-2012, 07:25 AM   #53 (permalink)
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Quote: Originally Posted by viper gts View Post
On an SRT-4???

Viper,

You need to keep in mind that if a car is picking up that much HP by just switching fuels (and nothing else), then there were other problems regarding how that particular car was set up for pump gas.

For instance, the car may have been seeing knock on pump and kept retarding timing to compensate, but once octane and cooler temps were realized with the E85, the car kept timing higher.

This is just an example of why someone would pick up so much HP simply from switching fuels.

In closing since you are on a E1, then I would go with E85 if available. If it's not available and you want to save a buck or two, go with the meth.
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Old 11-19-2012, 07:37 AM   #54 (permalink)
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Thanks Hunter, I am 25 minutes away from E85! I know there will be more cropping up closer soon. We just got our first E85 station in CT. If I do meth now I will kick myself in the ass when we get it locally. I was planning on filling the car and buy some of those VP fuel jugs with the hoses and stock up each time I make the trek...It's all highway drive in the quiet part of our state.
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Old 11-19-2012, 12:57 PM   #55 (permalink)
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Nigel told me e85 vs c16 was pointless on stock frame turbo. Basically the lil turbo would perform the same on the fuels.

I have no proof if e85 is better than c16. But I know it's wayyyyyyyy cheaper.
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Old 11-19-2012, 01:07 PM   #56 (permalink)
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Quote: Originally Posted by underSRTarmor View Post
Research Octane Number | | Motor Octane Number | | R+M/2
ethanol...........118....................96....... ........................107
regular gas .......92....................82................... ............87
E85 (summer)...113....................94.............. ...............104
C16.................119.....................117... .... .....................118
As a drag racer I feel the most important number is the Motor octane number. Research and R+M2 don't mean to much to me.
R+M/2 is the number you see at the pump. to get that number you take, research octane plus motor octane and divided by 2.

I think the ethanol numbers are optimistic. This table on wikipedia says ethanol/e85 is less, which falls into line of R+M/2 being around 95.

Octane rating - Wikipedia, the free encyclopedia

But like some have said, cant exactly compare octanes as alcohol behaves differently than gas.
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Old 11-19-2012, 01:41 PM   #57 (permalink)
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Quote: Originally Posted by viper gts View Post
If it burns slower why do you use 30% more fuel?

because it has 30% less BTU's hence why it needs 30% more fuel to equal the BTU's in gasoline,

it actually burns at about the same rate as gasoline, but becuase it has less BTU's it burns COOLER which also allows more timing, the advance comes from the fact that the most efficient amount of thermal energy/ pressure build up occurs slower cause of the lower BTU's thereby allowing more timing advance to reach optimal thermal expansion in the cylinder.
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Old 11-19-2012, 03:11 PM   #58 (permalink)
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Well I'm a little less confused now...But what I do know from all of your responses is that E85 sounds like a winner for HP and bang for the $$$ with relative safety! It is within a reasonable distance from me now, and the performance it will bare will make the trip worth it...Now comes Dusters injectors and his custom E85 tune, and a spare sending unit!!! Thanks
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Old 11-19-2012, 03:14 PM   #59 (permalink)
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Quote: Originally Posted by Boostinfamily View Post
because it has 30% less BTU's hence why it needs 30% more fuel to equal the BTU's in gasoline,

it actually burns at about the same rate as gasoline, but becuase it has less BTU's it burns COOLER which also allows more timing, the advance comes from the fact that the most efficient amount of thermal energy/ pressure build up occurs slower cause of the lower BTU's thereby allowing more timing advance to reach optimal thermal expansion in the cylinder.

Sooo from what your saying all of the power is from advanced timing and cooler charge temps. Does boost stay the same?
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Old 11-19-2012, 03:16 PM   #60 (permalink)
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Quote: Originally Posted by viper gts View Post
Well I'm a little less confused now...But what I do know from all of your responses is that E85 sounds like a winner for HP and bang for the $$$ with relative safety! It is within a reasonable distance from me now, and the performance it will bare will make the trip worth it...Now comes Dusters injectors and his custom E85 tune, and a spare sending unit!!! Thanks

Im gonna chime in here and just say that someone should developed an e85 proof sending unit. It can't be THAT difficult.
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