May have solved 100% E85 on LNF puzzle
04-07-2011 | 03:42 PM
#926
I don’t want to be a downer (haven’t read all 37pager either lol), but isn’t E85 corrosive for a non flex fuel engine?
I am totally excited about E85 for the LNF too, but I don’t want to get my hopes up.
I know some people say that cars built after the early 80’s are 100% fine with E85, but I still have reservations about running E85. Are we sure 110% positive that E85 will cause no corrosion on the seals, fuel lines, pump, etc.? Are our seals, etc. made out of silicone?
I am totally excited about E85 for the LNF too, but I don’t want to get my hopes up.
I know some people say that cars built after the early 80’s are 100% fine with E85, but I still have reservations about running E85. Are we sure 110% positive that E85 will cause no corrosion on the seals, fuel lines, pump, etc.? Are our seals, etc. made out of silicone?
04-07-2011 | 03:44 PM
#927
I don’t want to be a downer (haven’t read all 37pager either lol), but isn’t E85 corrosive for a non flex fuel engine?
I am totally excited about E85 for the LNF too, but I don’t want to get my hopes up.
I know some people say that cars built after the early 80’s are 100% fine with E85, but I still have reservations about running E85. Are we sure 110% positive that E85 will cause no corrosion on the seals, fuel lines, pump, etc.? Are our seals, etc. made out of silicone?
I am totally excited about E85 for the LNF too, but I don’t want to get my hopes up.
I know some people say that cars built after the early 80’s are 100% fine with E85, but I still have reservations about running E85. Are we sure 110% positive that E85 will cause no corrosion on the seals, fuel lines, pump, etc.? Are our seals, etc. made out of silicone?
04-07-2011 | 04:14 PM
#928
Senior Member
Joined: 02-09-09
Posts: 4,377
Likes: 5
From: Tejas
I don’t want to be a downer (haven’t read all 37pager either lol), but isn’t E85 corrosive for a non flex fuel engine?
I am totally excited about E85 for the LNF too, but I don’t want to get my hopes up.
I know some people say that cars built after the early 80’s are 100% fine with E85, but I still have reservations about running E85. Are we sure 110% positive that E85 will cause no corrosion on the seals, fuel lines, pump, etc.? Are our seals, etc. made out of silicone?
I am totally excited about E85 for the LNF too, but I don’t want to get my hopes up.
I know some people say that cars built after the early 80’s are 100% fine with E85, but I still have reservations about running E85. Are we sure 110% positive that E85 will cause no corrosion on the seals, fuel lines, pump, etc.? Are our seals, etc. made out of silicone?
I have also read that engines that are not designed for E85 may see accelerated exhaust valve wear due to the more corrosive nature of E85 fuel. I am not sure if that will be a problem with the LNF or not.
04-07-2011 | 04:25 PM
#929
Thanks, this is what I was looking for.
I'm not a educated tuner by any means (no HPTuners for me), but I do have a dealer kit from Vince, and certainly can flash back and forth between tunes.
Yes... I'll have a developed E85 tune for the car before I just go and try this, but there's no way for me (currently) to monitor LTFT (which is what I was speaking of in my first post) with Vince's stuff... at least not that I know of. So, I was looking for another way... 1/4 tank of use, etc. to gauge when that adjustment took place.
You all are in a world over my head... but I'll read everything any of you write and learn what I can, and ask questions when I don't understand. So far, I've been able to follow the discussion, except for the charts... I don't know how to read those at all.
I'm not a educated tuner by any means (no HPTuners for me), but I do have a dealer kit from Vince, and certainly can flash back and forth between tunes.
Yes... I'll have a developed E85 tune for the car before I just go and try this, but there's no way for me (currently) to monitor LTFT (which is what I was speaking of in my first post) with Vince's stuff... at least not that I know of. So, I was looking for another way... 1/4 tank of use, etc. to gauge when that adjustment took place.
You all are in a world over my head... but I'll read everything any of you write and learn what I can, and ask questions when I don't understand. So far, I've been able to follow the discussion, except for the charts... I don't know how to read those at all.
Palmer scanXL will let you data log with your laptop. It works good with my trifecta cable (tactrix)
04-08-2011 | 01:25 AM
#930
04-08-2011 | 09:36 AM
#931
Senior Member
Joined: 02-09-09
Posts: 4,377
Likes: 5
From: Tejas
On "stock tune" I would hit say 15psi on 93, and for the same conditions I would hit like 11psi with the E85. Interestingly, the E85 on "stock tune" still felt faster than the 93 on the "stock tune". Others have had similar findings when switching to the blend.
Had to keep using quotes because it's not really the stock tune when we're running E85. lol
04-08-2011 | 09:48 AM
#933
04-08-2011 | 12:24 PM
#934
The extra timing that you're able to run with E85 over 93 means that you don't need to run as much boost to hit the same torque target. A "learn down" type of thing results with the boost level you see, and I would say that part of what you were seeing with the boost is normal.
On "stock tune" I would hit say 15psi on 93, and for the same conditions I would hit like 11psi with the E85. Interestingly, the E85 on "stock tune" still felt faster than the 93 on the "stock tune". Others have had similar findings when switching to the blend.
Had to keep using quotes because it's not really the stock tune when we're running E85. lol
On "stock tune" I would hit say 15psi on 93, and for the same conditions I would hit like 11psi with the E85. Interestingly, the E85 on "stock tune" still felt faster than the 93 on the "stock tune". Others have had similar findings when switching to the blend.
Had to keep using quotes because it's not really the stock tune when we're running E85. lol
04-08-2011 | 12:31 PM
#935
Senior Member
Joined: 07-25-08
Posts: 12,478
Likes: 6
From: Florida
The extra timing that you're able to run with E85 over 93 means that you don't need to run as much boost to hit the same torque target. A "learn down" type of thing results with the boost level you see, and I would say that part of what you were seeing with the boost is normal.
On "stock tune" I would hit say 15psi on 93, and for the same conditions I would hit like 11psi with the E85. Interestingly, the E85 on "stock tune" still felt faster than the 93 on the "stock tune". Others have had similar findings when switching to the blend.
Had to keep using quotes because it's not really the stock tune when we're running E85. lol
On "stock tune" I would hit say 15psi on 93, and for the same conditions I would hit like 11psi with the E85. Interestingly, the E85 on "stock tune" still felt faster than the 93 on the "stock tune". Others have had similar findings when switching to the blend.
Had to keep using quotes because it's not really the stock tune when we're running E85. lol
04-08-2011 | 01:19 PM
#936
Senior Member
Joined: 05-27-09
Posts: 2,803
Likes: 1
From: In the mountains
Now dialed in on E
Your face one terms E tune ^^
04-08-2011 | 03:29 PM
#942
Senior Member
Joined: 05-27-09
Posts: 2,803
Likes: 1
From: In the mountains
Gunna say we are on a cobalt forum bro , wtf is that tune 
But all in all my car felt like I swapped it...
I'll bet a BNR on E85 is just what the doctor ordered for this car with stock components ..
Perfect match for power stock I would guess...
I almost feel like any more power would just be a complete waste but its a hobby so it is what it is... Seriously nothing like the feeling of having more power without spending an arm and a leg.
Thanks terminator I'll have to say the last year and a half he has been great to deal with and I never have problems , the guy is so thorough I'll bet he sanitizes his tooth brush before going to bed at night ..
But all in all my car felt like I swapped it...
I'll bet a BNR on E85 is just what the doctor ordered for this car with stock components ..
Perfect match for power stock I would guess...
I almost feel like any more power would just be a complete waste but its a hobby so it is what it is... Seriously nothing like the feeling of having more power without spending an arm and a leg.
Thanks terminator I'll have to say the last year and a half he has been great to deal with and I never have problems , the guy is so thorough I'll bet he sanitizes his tooth brush before going to bed at night ..
04-08-2011 | 04:38 PM
#945
Senior Member
Joined: 07-25-08
Posts: 12,478
Likes: 6
From: Florida
04-08-2011 | 04:50 PM
#946
I guess since the 2860 is not much bigger that stock, Im able to get away with E60(2:1). Were not being very agressive with power and boost is at 22. Nick has it ramping up from 17 to 22 instead of it all hitting at once.
04-08-2011 | 04:58 PM
#947
Senior Member
Joined: 07-25-08
Posts: 12,478
Likes: 6
From: Florida
Conservative boost delivery and the fact that the 2860 is not much bigger than stock (1-2 lbs/min more airflow at the same boost levels) I reached the injection limit on RYRO14s car at 24 psi and E-47 on the stock turbo. He had no issues when I was tuning it (Car ran consistant 4.5 second 60-100 times in 70* temps) but a week or so later it threw a low rail pressure code and a few days later it did it again and it starved so bad that time one of the pistons blew.
04-08-2011 | 05:55 PM
#949
dont like reading so heres another NOOB question, with the E-85 tune can you still run on 93? there is hardly any E85 stations near by but might be useful when going to the CED meet since its cheaper and lots on the way
04-08-2011 | 06:24 PM
#950
Conservative boost delivery and the fact that the 2860 is not much bigger than stock (1-2 lbs/min more airflow at the same boost levels) I reached the injection limit on RYRO14s car at 24 psi and E-47 on the stock turbo. He had no issues when I was tuning it (Car ran consistant 4.5 second 60-100 times in 70* temps) but a week or so later it threw a low rail pressure code and a few days later it did it again and it starved so bad that time one of the pistons blew.