I think FoMoCoSHO ran as high as E45 at one time with an AJP tune on his 2015, which was stock otherwise. Lot of lessons learned along the way. So E30 should be very doable on 2013+ with the stronger OEM HPFP. Bit more of a challenge on the 2010-12 with about 500 psi less headroom, but still doable.
Why not straight E85?
- Thread starter StinkinLinkin13
- Start date
StinkinLinkin13 said:Yea... That's where I'm at... I'm considering AJP for E30 tune. But concerned that if I am indeed having hpfp fueling issue that it may be all for not... Then as some have stated I'm not sure whether the sputtering issue is a "tuning style issue" or a true hpfp fueling issue. I have no data logging equipment tho because of the tuner I chose so here I am. It's seems as myself and SBS have had a similar path. He does have much more first hand experience with different tuners however.... Here I am trying to cheat and lets say not have to go through all that and achieve optimum results with minimal expense...
All of Brad's tunes have been great for me. I wonder if you are truly having HPFP issues.... It could be a "tuning style issue" as you have stated. Honestly, if I were in your shoes and have seen the some other threads (SHO Forum) about a certain revision of a tune I would certainly be concerned. One of the main reasons I went with the SCT Livewire was because of the real time information, 10 loadable tunes, and the ability to datalog and review those logs. I went with AJPTurbo because of the positive reviews, the performance postings, and because Brad is willing to explain why he does what he does with his tunes. Plus I am learning along the way, and with knowledge comes power.
SHOdded said:
This gets my mind thinking. I always test what comes out of the pump here in PHX for E products. They usually test right at E50 ish. I wonder when it warms up, if I could get away with running E50 ish all the time. Something to throw past Brad. E50 is usually around 80 cents cheaper a gallon as well. Even with my hot E30 tune my fuel pressure sits in a good range that both I and Brad feel good about. I wonder if we back it off some, I could get away with E50 on the stock HPFP.
bpd1151
Active member
To this day I still am left wondering why so many rave about E85 being "cheap".
It gets worse mileage than pump gas, and takes more volume to achieve the same engine power as pump gas.
I really question the actual tangible (term used loosely....) "savings".
Never been a fan. Likely never will.
Alas I digress.
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It gets worse mileage than pump gas, and takes more volume to achieve the same engine power as pump gas.
I really question the actual tangible (term used loosely....) "savings".
Never been a fan. Likely never will.
Alas I digress.
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bpd1151 said:
There are many factors that contribute to people loving E85. Certain geographic regions have different fuel as we all know. For instance here in AZ we do not have 93 octane. We only have 91 octane. It is also extremely hot (115+). My IAT's during the summer get into the high 170's. Couple that with only 91 octane there is no way around having a tune that makes me happy without getting pre-ignition.
On a E30 tune under the same conditions with more boost I have zero knock and I am happy. My car tune only almost cracked 400AWHP in 100 degree heat with only a AJPTurbo E30 tune, K&N drop in, and 542 plugs. It also goes into mid 12's (50's) at full weight like a bracket car. I bet with more seat time, I can get it into the 12.30 range, we will see in January.
With E85:
The Octane is higher, cooling properties are better, it has the ability to make more power than pump gas here. All of my boosted cars have run on the E(whatever) because they stay cooler and they run better. I also don't daily my SHO, so the decrease in fuel mileage is a non factor for me. Also look at the math. 19 gallons at $3.33 a gallon (91) is $63.65. 10 gallons at $3.33 a gallon is $33.30 + 9 gallons of E50 (pump E85 for me) at $2.59 a gallon $23.30 = $56.61 $56.61/63.65=88%. That is 12 percent cheaper. My SHO on 91 gets right a 400 miles per tank usually 21 mpg. On E30 it gets 340 ish at 17.8 ish mpg. So 17.8/21= 84.7% a 16 percent drop in mileage. If I can get away with running straight E50 it will only cost me 19 gallons at $2.59 = $49.21 making my personal use of it even more justified. So I am literally breaking even with price per mileage. My car runs harder, does not have any knock, and I have peace of mind. Plus testing pump E85 is super easy.
I will upgrade the HPFP one of these days. I don't want have to worry about a meth system that is solely used as another fuel source. I would only install one on my car to clean the valves. The more I see and hear about certain meth tunes, the more I realize for my application I went with the right choice. Plus my car makes as much HP and TQ in crap DA and heat that most Meth cars do......at lower boost and lower RPM.
For me there is no other choice.
The picture I added was my hot E30 tune on a 360 mile drive to CA averaging 82 mph.
bpd1151
Active member
That explanation's appreciated sm105k. My comment(s) were/are just an overall generalization across the board. Not directed at you specifically. Just to be clear.
Makes sense I suppose if there's truly no other alternative. But I still have, and will continue to have, my own reservations. For a myriad of reasons.
I equate it with putting lipstick on a pig. Dress it up as much as one can, but in the end, it's still a pig. LOL.
Moving along......
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Makes sense I suppose if there's truly no other alternative. But I still have, and will continue to have, my own reservations. For a myriad of reasons.
I equate it with putting lipstick on a pig. Dress it up as much as one can, but in the end, it's still a pig. LOL.
Moving along......
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bpd1151 said:
BPD I know they weren't. It is just easier for me to explain things out and why my justifications are the way they are. If I could get 93 and it ran the same way my E30 tune runs, I would run the 93 octane. However, AZ has dogs**t for pump gas. If I could drive my car around with 100 unleaded race fuel I would. However, at 8 to 9 dollars a gallon and $170 dollars a fill up it isn't feasible. E50 is plentiful, cheap, and works for my application.
bpd1151 said:
Quit being a grump!
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Also, you don’t HAVE to have the HPFP upgrade to run E30.
You need a tuner willing to tune for it such as AJPTurbo. The HPFP gives you a cushion to run heavier E-Mixes all year round... set and forget reliability.
Jordan has ticked off consistent 11’s with AJPturbos E30 tune on the stock HPFP.
It’s all in what you are willing to deal with.
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You need a tuner willing to tune for it such as AJPTurbo. The HPFP gives you a cushion to run heavier E-Mixes all year round... set and forget reliability.
Jordan has ticked off consistent 11’s with AJPturbos E30 tune on the stock HPFP.
It’s all in what you are willing to deal with.
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StinkinLinkin13
New member
bpd1151 said:
All right. I'm going to steer a little off subject here. But I've been meaning to mention as a Trekkie myself... Anytime I read your post BDP.. I read them and hear them as the voice of Data... Quite absurd isn't it Captain?
Ok carry on with this great discussion. Thanks for all the input guys.
Jordan said:sm105k said:
Daily without an interior forever and technically you'll always be at your full weightHa! Race fuel absolutely helps. I need to make it out early spring in the lower DA and see what she can do. The 11.98 I ran on e30 was hot hot hot!
Mine should be up and running the end of next week. So.....yeah. Hopefully hit the track mid January. I think I have a change at the 11 second clip with some upgrades and maybe a smaller driver....lol.
ZSHO said:
1
I forgot 802SHO is spraying meth.
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