With flex fuel, meth is still good to use when running on pump for the extra octane.

 

If you already installed the kit no reason you shouldn’t do both, most guys use meth as a bridge before they go E85. That’s what I’m doing, running 100% meth and only spraying up top at higher RPMs doesn’t start spraying til 7/8psi I’m making 10psi also on a P1SC1. Also already have flex fuel sensor installed and ID 1300’s. When I get an auxiliary fuel system and can run E85 I’m keeping the meth kit on, might just run 50/50 might keep 100% not sure. We’ll probably adjust the amount of spray and when we spray as well.

If the kit isn’t installed and you could use the money from the sale to go towards **** needed for running corn selling it is an option. What kinda power do you plan on making? If your gonna stay in the 650-700whp range you don’t “need” meth and corn that’s for sure....if your trying to go higher in the future it’s not a bad idea to have both, if not no need to over complicate ****. 10psi is a good amount of boost for a P1SC1 what size blower pulley are you using and what size rib?

 

Its a chemistry equation, a balancing act. Knowing what you need to reach some target goal. Each component, meth, water, race fuel, E85, gasoline, has it's own range of usefulness.

-Water is ideal for cooling components. It can be used to prevent ring-gap related failure due to over-heated pistons. It can stave off detonation when using cheaper fuels that won't tolerate high temperatures. It can be used to reduce exhaust gas temperature to prolong component lifespan (turbochargers, coatings, valves, hardware, etc...)
-methanol (supplementary injection) Is useful for improving the octane rating of pump fuels. A little bit of methanol can go a long way to improving fuel behavior at high temperature. Note that methanol slows the combustion reaction through it's octane rating and not by cooling. Methanol will not prevent piston ring related failure, will not prevent overheated combustion chambers/valves/exhaust/etc... it does almost nothing for cooling on the scale of supplementary injection, and it burns which adds heat to the reaction. Furthermore, mixtures over 50% methanol will burn and are not recommended on street/daily applications .
-E85 is a high octane racing fuel, and as it evaporates will cool components nearby to the combustion chamber. It may not reduce EGT the way water will, e.g. components can still be overheated just like with regular fuels. Don't let the icing on the intake fool you, E85 burns with tremendous temperature.

So some examples
My friend has a 2.0L engine that makes 380rwhp on 18psi of boost, but the turbo flows 550hp max if we could only raise the boost to 30~psi. Regular gasoline isn't good to 30psi usually. It was determined only a slight bump to octane would be required, and methanol injection fit the bill allowing him to keep his injectors and pretty much unchanged engine/ecu (E85 and flex fuel compatibility would have cost ~$3000 to upgrade into). Since its a street car, 50/50 is used as the max methanol concentration, since the lines/pump/system as a whole is considered somewhat leaky and this is normal, as it uses the plastic hoses and push-loc style fittings that you normally wouldn't trust to hold a flammable liquid.

Another example
An OEM 5.3L 2002 truck engine with an S369 turbocharger will reliably tolerate 20psi of boost- but not on gasoline without causing ring-related failure as the temperature would be too high for both the fuel and the engine.
It was determined that the 93 octane could be used up to 18psi of boost as long as temperature was kept in check- so 100% distilled water was fitted to reduce the EGT to safe turbine inlet temperatures (~1350*F max)
Later, the boost was raised to 22psi for additional power, and 30% methanol was introduced to improve the octane of the pump fuel as a safety measure, and the jet was re-fitted to be larger for the supplementary injection.

Another example
My friend is building a 2.5L drag/roll racing car with powerglide, t-brake, plans to run 30-35psi of boost all the time non stop. Since E85 will give the most possible output out of all the options and is the safest racing fuel to use (when used properly it beats almost everything) E85 flex fuel is the way to go. It will likely tolerate 25-30psi of boost with just 50% ethanol content. Somewhere around 850bhp final output is expected, about 150 over what would be possible using gasoline and methanol with the same combo due to differences in volatility of gasoline (reduced timing for safety even with methanol) and temperature of local components (head/intake/pathways get hotter on gasoline)

 

Lots of good info in these threads, should clear up some reasons why people use different approaches to solve different issues. Just understand that on a P1SC1 running 7+psi your gonna need more fuel pump to handle E85. I believe we went lean at 5000rpms on E48 with stock ZO6 fuel pumps ID1300’s and a BAP. Had to run tuned down on a low rev limiter until I got the ethanol out and even after that we set a 6k rev limiter until I threw meth at it. Also not all meth kits are created equal, the alkycontrol kit is one of the

 

[QUOTE=73DBG;1599241008]Lots of good info in these threads, should clear up some reasons why people use different approaches to solve different issues. Just understand that on a P1SC1 running 7+psi your gonna need more fuel pump to handle E85. I believe we went lean at 5000rpms on E48 with stock ZO6 fuel pumps ID1300’s and a BAP. Had to run tuned down on a low rev limiter until I got the ethanol out and even after that we set a 6k rev limiter until I threw meth at it. Also not all meth kits are created equal, the alkycontrol kit is one of the better kits, all the hoses and fitting are steel braided so it’s gonna handle 100% meth much better. Also depends on how you drive it and if it’s a daily or not, my situation being it’s not a daily and how we have the meth coming on way up top I really need to be getting after it or no meth is ever spraying, so if I’m just cruising somewhere on a nice day I’ll never get into meth....if it’s a Mexico trip and dudes aren’t getting the business is really the only time it’s spraying or I’m heating up the tires. Again depending on your goals and if they are sub 750whp ish don’t over complicate they system, E85 and the proper fuel system would be just fine. If you want to get 800+whp I’d be looking at both.

 

Thanks for taking the time to write that out. More info always helps.

I haven't installed the alky kit yet. I think my new plan is just to get the DSX flex fuel sensor kit, and a gauge to monitor E content. I think I'm going to keep my meth kit. Why not? I already bought it, I'll only lose money selling it.
I'm putting a Walbro 450 in the tank, and I also have a 40A BAP to wire up, so fuel delivery shouldn't be an issue. Although I'm not sure if I'll need a new fuel pressure regulator and return line for it... Still doing research.

I'm on a 4.63" ferris wheel right now, pushing about 5lbs boost (bone stock restrictive mainfolds/exhaust). Once I put on LTH along with everything else, I'll lose a couple pounds of boost. I've got a 4.38", 4", and 3.5" pulley for it. I'm thinking I'll do the 4" or 3.5". With both e85 and meth for safety, I figure I might as well send it with the 3.5" pulley. Why not? Currently on a 6-rib setup. I was having endless belt slip/alignment issues with the lousy Procharger bracket. Upgraded to the A&A bracket and haven't had a problem since. I'd like to stay UNDER 800whp (which I don't think will be a problem with a P1), because I'm not tryna build my bottom end/trans/diff anytime soon.

 

You’ve got some good parts that’s for sure, not sure how the 3.5” pulley is gonna do on a 6 rib though, you have the secondary drive kit from A&A? That would help for sure. Going to the 8 rib kit with the standard procharger bracket is working for me, 3.7” pulley no slip so far @ 10 psi made 840whp/700wtq loaded and corrected dyno jet, 867whp/730wtq unloaded and SAE corrected. I use the loaded and corrected numbers when people ask about power numbers. You’ll have no problem staying under 800 with a P1SC1 honestly I haven’t seen anyone else make 800+ with a similar set up to mine on pump 93/meth so it’s kind of a unique scenario with some really good supporting mods and parts combined with a good tuner that made all this work in harmony....definitely over shot what we thought it would do, E85 will get into the low 900’s for sure and I’m still on factory intake and TB(no porting....yet lol)

 

Wow those are some impressive numbers! you've got a c6z though, right? I've just got a lil' ol' base model over here
We'll see how it does. No secondary drive for me. Just the A&A bracket that does fantastic.
I just replaced the harmonic balancer (with the Powerbond) in August, right before I had all the tensioner problems. So I'm trying to avoid going back in and replacing with an 8 rib HB and all the supporting pulleys. That power steering rack was a PITA. Frustrating, but oh well. The forum member I bought the pulleys from was running a 3.3 or 3.4" 6-rib setup with a P1 and wasn't having belt slip issues, so I've got my fingers crossed! I definitely don't need more than 800whp. I'd need some drag radials, and I like carving the hills too much to set myself up for ONLY roll racing in Mexico.

Do you monitor your E content? What other parameters do you monitor and what gauges do you use? I'm deciding.

 

Yeah I’ve got a ZO6, Toyo R888R’s probably gonna be the tire for you man, hopefully you have smaller than 19” wheels though. I’m not running ethanol currently because I don’t have the pump to support it. I use a dashlogic with an AEM AFR gauge and AEM boost gauge(actually not needed but I didn’t know that original) dashlogic lets you hide the gauges under the steering column where the OBDII port is located, it plugs into there and displays damn near anything you want on your HUD/DIC including ethanol content. I haven’t set up the PID for ethanol content yet, we used HP tuners on the dyno when we tried to run E50. There’s another nice gauge that does E content/AFR/fuel temp and boost I’ll link it below...it’s not the cheapest but gives you everything you want. The A&A bracket is far superior than prochargers bs that’s for sure, I almost got it when I ordered the wrong pulleys for my 8 rib upgrade and realized I needed the bracket to use the pulleys from A&A I didn’t want to drop another $1000 at the time.

https://www.rallysportdirect.com/par...lete-gauge-kit

 

Don’t short change your “lil ole base” my friend....it’s boosted!!! If we were both at a corvette meet and there was 50 C6 ZO6’s and they where mostly bone stock or just H/C/I and your boosted base was also there I’d have a much better time hanging with you lol I’m just a big fan of fast cars, modified fast cars to make them even faster and the type of dude who buys a corvette and says....it’s nice...it’s fast....but we can be faster is my kinda bro! 🇺🇸🐌🏎

 

I'd like to measure IATs and (obviously) e-content now as well. I only want 2 gauges on my pillar and I bought the AEM UEGO boost/wideband, and the Innovate digital fuel pressure gauge (prior to deciding on e85). I've never been interested in the Dashlogic as I don't really like using the DIC, I feel it doesn't update very fast. But for IAT and e-content, it might be sufficient. I'll look into it some more, thanks for the suggestion.

Hahahaha yes very true, the lil' ol' base can really put down some hurt. I have yet to find a new Coyote Mustang that will race me (I've tried at least 5x lol). Maybe I should take my "supercharged" badge off...
I just bought R888Rs, actually. Aside from the sport cup 2s, it was about the best straight/cornering grip on the market without going to a drag radial. Unfortunately still rocking the standard 19" gumby wheels. Maybe a drag pack in the future, we'll see. I feel you my man, they had a Corvette gathering at Laguna Seca a few months back when I was there for the races that weekend. I walked through about all 50+ corvettes and didn't stop to look at more than 3-4 of them. Most were bone stock C7s, C6zs and C6s (YAWN). I spent more time looking at the C5z cars

 

I don’t like the look of gauges everywhere myself that’s why I went with the dashlogic. I’ve had a hard time getting coyotes to run myself....a local guy with a 2015 twin turbo S550 was talking a lot of **** about how fast he was and no vette was gonna touch him(not to me personally) but some friends of mine said they new a guy with a C6z that would probably give you a run....3 months later I finally got that chance....only after I agreed to every favorable stipulation for them they could come up with...pretty much 40 roll or go home without a decent run and I drove about an hour to get to that part of Mexico....I’ve got video of the two runs....🤣 also did you know today is “Mustang day” I might have to go hunting in a few...

 

Well?? How'd the race go?? Link the videos! Those S550s are FAST if they're built right. I raced one last summer when I had belt alignment issues (at the time I couldn't go above 4.5k RPM into boost or I'd shred my belt) and he slowly walked past me. Man I was mad (at the belt tensioner). So obviously I've been itching to find a Stang ever since I fixed my belt problems

Today is Mustang day huh? Might have to go hunting myself...

 

 

I can’t take any credit for the video editing....that’s courtesy of my buddy, great guy to have on Mexico runs! Lines things up, get footage and not bad at editing either! He also sent me a screen shot of his texting with the mustang owner the next day(they are somewhat “friends” lol).....it’s pretty damn funny.....👇🏻


Little back story....there was a large cars and coffee the next day....the night pre meet was pretty good and Mexico runs that night had been set in advance....around 200+ cars showed up in this part of Mexico and to my surprise our race ended up being the “main event” apparently so this got a lot more attention than I’m guessing he expected. Weather was sketchy but it held up, I think the weather be so iffy kept the 4 digit cars from making the trip, not a many of those around here anyway and the few there are didn’t come out.

 

Hahahaha damn you hurt his feelings!! All upset about it making excuses. Losing isn't even a big deal lol.
I pulled up on a new Boss 302 today, pulled away from the light and casually shifted into second, and then let off to let him line up next to me. Then instead he just nailed it and flew past me, put about a car on me. I followed suit and as soon as I started reeling him in (going into 3rd) he lets off and sticks a thumbs down out the window. Is it just a Mustang thing or what?? Smh

 

Took me three months to get this dude to actually show up and he was the one say “no corvette or any around here is gonna touch me” 🤣 I just do the Mexico stuff for fun....and he’s aware of that, I’m guessing why he threw out the next time it’ll be for money🙄.....him and his tuner where all up in my engine bay as well, I had it open all night...**** I gave them my flashlight so I found it amusing that he was saying I have a fully built motor with and F1X

 

Oh I Love it. Just imagine if you had a truck engine in the car and you could brag about how the engine cost less than his tires. Or that its from a Tahoe or something.

That always seems to do the trick, and hell they can't tell what engine is what from the top usually.

 

I saw a video recently on IG from some Mexico runs and after a vette gapped a fool in a mustang and they slowed down to let him catch up the passenger handed the drive a piece of white board and it said “SELL IT” dude was holding it out of the window 🤣🤣

I was curious as to how much money was spent....2015 S550 Coyote, Twin Turbo kit and he had a really nice drag set up, Hoosiers and front runners to match....I’m still on the factory 18/19’s with NTO5R’s

 

could you give me these part numbers ecs didn’t send the sensor and grommet with my harness and won’t answer their phone. Thank you!!!!