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Old 06-01-2011, 04:08 PM   #301
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I'm confused, pure methanol is 100% obviously and e85 is obviously 85% ethanol. Why wouldn't you rather run 100% methanol and less 85% ethanol instead of water and 85% ethanol if you could?

A quick search even found this http://champcars.blogspot.com/2006/0...s-ethanol.html

We currently have 2 race cars at the shop which may not be a great comparison. One is an all motor B-series on pure methanol making 280whp and the other is a Drag Cartel 2.7l all motor on e85 making 340whp. The B would switch in a heart beat to e-85 if it would make more power?
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Old 06-01-2011, 04:18 PM   #302
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Originally Posted by zurmagus View Post
see that's the problem - if you're pulling e85 and injecting enough methanol to maintain the same afr you're going to lose torque due to the simple fact that e85 has more chemical energy.

Methanol only benefits a gasoline engine because it allows you to optimize ignition timing to the point where peak combustion pressure occurs at 14* atdc. With e85 it is very likely that you've already reached that optimum ignition timing so there is nothing left to do tuning-wise to compensate for the reduced chemical energy of the methanol.

water on the other hand doesn't burn so what it is mainly doing is soaking up all the latent post-combustion heat.
this
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Old 06-01-2011, 06:57 PM   #303
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Quote:
Originally Posted by NtegraDryvr View Post
I'm confused, pure methanol is 100% obviously and e85 is obviously 85% ethanol. Why wouldn't you rather run 100% methanol and less 85% ethanol instead of water and 85% ethanol if you could?
http://wiki.xtronics.com/index.php/Energy_density

Energy density is an important factor.

Gasoline - 9,700 Wh/l (watt hours per liter)
Ethanol - 6,100 Wh/l
Methanol - 4,600 Wh/l

E85 is 85% Ethanol, 15% Gasoline - 6100 * 0.85 + 9700 * 0.15 = 6640 Wh/l

In our applications, E85 strikes a good balance between octane characteristics and energy density. Horsepower is all about producing the maximum combustion pressure at the right time.

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Key thing here is that they are talking about champ cars which have drastically different motors and fuel systems from anything we would ever have in our cars. If the article is accurate it simply indicates that methanols characteristics are more optimized for the demands of a champ car engine.

Quote:
Originally Posted by NtegraDryvr View Post
We currently have 2 race cars at the shop which may not be a great comparison. One is an all motor B-series on pure methanol making 280whp and the other is a Drag Cartel 2.7l all motor on e85 making 340whp. The B would switch in a heart beat to e-85 if it would make more power?
It is difficult compare 2 different motors like this and draw any meaningful conclusions.... I don't even know if they are the same displacement!

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Old 06-22-2011, 04:55 PM   #304
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has neone done this on a kswap car? kinda confused on the wireing to the ecu since the swap harness is different from regular harness
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Old 06-23-2011, 10:28 PM   #305
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would meth that i bought last year still be good?
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Old 08-24-2011, 09:20 PM   #306
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hey guys is there anyway i can test if my meth is engaging i want to make sure it works before i take it to the dyno
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Old 09-01-2011, 09:12 PM   #307
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random question..can u use nitrous and meth injection?
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Old 09-02-2011, 07:22 AM   #308
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random question..can u use nitrous and meth injection?
I've been told yes, but no one has tried it. I dont see why not...unless the nitrous freezes the water too much and you throw ice into your motor.
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Old 09-04-2011, 11:35 PM   #309
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well ill let yall know..gonna add a 35 shot to my sc with my meth setup..running a 14* nozzle right now
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Old 01-04-2017, 07:25 PM   #310
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Bump for a good read in learning to tune with W/M.
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Old 01-04-2017, 08:06 PM   #311
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For those still around w/ W/M, I'm currently running 500cc nozzle (7.92gph) on a JRSC K24a2 with 3.2" bp. I'll be changing to a 3.0" bp and spinning the blower 15,149 rpm @ 7600. I have a 1000cc nozzle (approx 15.85gph), so I'm thinking it would be worth running the 1000cc nozzle? Thoughts or recommendations?
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Old 01-17-2017, 10:22 AM   #312
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Meth injection

Quote:
Originally Posted by nats007 View Post
For those still around w/ W/M, I'm currently running 500cc nozzle (7.92gph) on a JRSC K24a2 with 3.2" bp. I'll be changing to a 3.0" bp and spinning the blower 15,149 rpm @ 7600. I have a 1000cc nozzle (approx 15.85gph), so I'm thinking it would be worth running the 1000cc nozzle? Thoughts or recommendations?

I am using a 3.0 inch pulley, K24 JRSC, K24 Crank pulley and I have 3gph to 4500rpm and second stage kick in after that. Second stage at 5gph. A combine of 8gph for both. meth mix is about 75% meth/ 25% water.

power is strong and smooth.
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Old 01-17-2017, 12:34 PM   #313
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Quote:
Originally Posted by crackerjack View Post
I am using a 3.0 inch pulley, K24 JRSC, K24 Crank pulley and I have 3gph to 4500rpm and second stage kick in after that. Second stage at 5gph. A combine of 8gph for both. meth mix is about 75% meth/ 25% water.

power is strong and smooth.
nice! Appreciate the reply and based on your setup, it might be safe to stay with the single 500cc nozzle. I'm not tuned for W/M at the moment, but this definitely helps with IATs spiking during WOT. Currently running boost juice that came with the kit. After I finish that, I'll most likely mix my own 50/50.
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Old 01-19-2017, 03:13 PM   #314
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Quote:
Originally Posted by nats007 View Post
nice! Appreciate the reply and based on your setup, it might be safe to stay with the single 500cc nozzle. I'm not tuned for W/M at the moment, but this definitely helps with IATs spiking during WOT. Currently running boost juice that came with the kit. After I finish that, I'll most likely mix my own 50/50.
In that case, a single 5gpm should do you good. I forgot to mention that I also have an aftercooler setup to bring IAT down.

For meth injection, I use OEM blue windshield washer fluid -40C. If you look around you might find concentrated windshield washer fluid as they are 90% methanol. Mix that 50/50 with the blue windshield washer fluid and you get around 75% concentration and does the trick.
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