[924er]

Originally Posted by stanlalee

He may be looking at the AFR after you shift gears (easy to do at first glance if you just follow the AFR line). Those AFRs are good for a low ethanol tune although I would run at least e30 for 12.0 up. I run the exact same AFR (12.05) but I run e40. Also you are logging timing correction but we need to see timing angle. We can't tell a thing about how aggressive your tuned with timing correction. All it tells is your not getting corrections. with timing angle we can see both how aggressive timing is and if there are corrections (timing drops).

Originally Posted by Tiago@VRSF

The intercooler or intake temps isn't really hindering you on the third log. The first few logs looked like you were logging with a heat soaked intercooler whereas the last one does not. An intercooler requires a cool down period after a multiple gear pull in order to get closer to ambient temp. If you do multiple back to back pulls without letting the intercooler wind down you're going to have inconsistent results.

ok guys I did another log now, this time logging individual timing on each cylinder. ambient temps were 85F. i did one run to warm the car up and charge temps went up to 100F. i tried cooling it down but it just stayed at 100F. i did a 3rd gear pull and it went up to 113F. let me know how the log looks and if its safe to run. thanks guys

http://www.datazap.me/u/moswissa/jkh?log=0&data=1-7-22

[stanlalee]

Originally Posted by 924er

ok guys I did another log now, this time logging individual timing on each cylinder. ambient temps were 85F. i did one run to warm the car up and charge temps went up to 100F. i tried cooling it down but it just stayed at 100F. i did a 3rd gear pull and it went up to 113F. let me know how the log looks and if its safe to run. thanks guys

http://www.datazap.me/u/moswissa/jkh?log=0&data=1-7-22

The log looks perfect but for ethanol tuning timing is VERY conservative
Here's one of mine (only cyl 1 timing with BT tool. I'm the one who should be logging corrections since it will log corrections for all 6 cylinders). Not suggesting you should be running that much but you definitely want more than 6.75 peak timing with ethanol. That's fairly conservative even for pump gas. As for AITs my log is in Celsius but ambient was about 75 deg. IATs also hovered around 100 deg F prior to the run but at 6200rpm (where yours stops) my IATs were 107.5F. I ring it out to redline for logging purposes.

http://www.datazap.me/u/stanlalee/au...og=0&data=5-11


As for Tiago and me derailing the topic lets just say I also browse the N55 forum frequently and I saw what you did there. Don't throw stones if you live in a glass house and I'll leave it there.

[924er]

Originally Posted by stanlalee

The log looks perfect but for ethanol tuning timing is VERY conservative
Here's one of mine (only cyl 1 timing with BT tool. I'm the one who should be logging corrections since it will log corrections for all 6 cylinders). Not suggesting you should be running that much but you definitely want more than 6.75 peak timing with ethanol. That's fairly conservative even for pump gas. As for AITs my log is in Celsius but ambient was about 75 deg. IATs also hovered around 100 deg F prior to the run but at 6200rpm (where yours stops) my IATs were 107.5F. I ring it out to redline for logging purposes.

http://www.datazap.me/u/stanlalee/au...og=0&data=5-11" rel="" target="_blank">http://<a href="http://www.datazap.m...&data=5-11</a>


As for Tiago and me derailing the topic lets just say I also browse the N55 forum frequently and I saw what you did there. Don't throw stones if you live in a glass house and I'll leave it there.

Good to hear man. How do I increase the timing? Should I add 3 gallons of e85 instead of 2?

And for your log, what map were u running and what type of fuel. Ur FMIC seems to be doing a better job than mine lol

[stanlalee]

Originally Posted by 924er

Good to hear man. How do I increase the timing? Should I add 3 gallons of e85 instead of 2?

And for your log, what map were u running and what type of fuel. Ur FMIC seems to be doing a better job than mine lol

You have Cobb so you should probably spring for a Pro-tune but it can be done via free Cobb ATR software in the timing tables (if that sounds unfamiliar don't do it). I'm using BT tool and a self detuned version of OFT e40 tune but I'm just dicking around and asked for a lot of opinons on the forum. I do have an understanding of basic timing, fueling and load tables (don't have a clue about wastegate and PID etc). For the map your running now e20 should be fine. If you ever decide to get more aggressive with the tuning I'd consider e30-40 mix. How much ethanol you need is exponential to how aggressive you tune is. If you are getting corrections with e20 you may need e30 but you don't have any significant corrections with what your using. You could try Cobbs e30 map and see how it logs. Neither of our intercoolers are doing anything special compared to a good 7" but with ethanol its less critical as cools post intercooler during combustion. Its cooling effects won't show up in IATs but again the more used the more cooling effect. When you look at how much hp each 10 deg F of heat cost the difference between your intercooler an mine are pretty insignificant.

Rule of thumb is 1% hp for every 10 deg F reduction in heat so even a 20 deg difference on a 400hp engine is only going to be about a 8hp difference. Of course there is also air flow improvements over stock to take into consideration which probably accounts for as much as IAT improvements.

[924er]

Originally Posted by stanlalee

You have Cobb so you should probably spring for a Pro-tune but it can be done via free Cobb ATR software in the timing tables (if that sounds unfamiliar don't do it). I'm using BT tool and a self detuned version of OFT e40 tune but I'm just dicking around and asked for a lot of opinons on the forum. I do have an understanding of basic timing, fueling and load tables (don't have a clue about wastegate and PID etc). For the map your running now e20 should be fine. If you ever decide to get more aggressive with the tuning I'd consider e30-40 mix. How much ethanol you need is exponential to how aggressive you tune is. If you are getting corrections with e20 you may need e30 but you don't have any significant corrections with what your using. You could try Cobbs e30 map and see how it logs. Neither of our intercoolers are doing anything special compared to a good 7" but with ethanol its less critical as cools post intercooler during combustion. Its cooling effects won't show up in IATs but again the more used the more cooling effect. When you look at how much hp each 10 deg F of heat cost the difference between your intercooler an mine are pretty insignificant.

Rule of thumb is 1% hp for every 10 deg F reduction in heat so even a 20 deg difference on a 400hp engine is only going to be about a 8hp difference. Of course there is also air flow improvements over stock to take into consideration which probably accounts for as much as IAT improvements.

yeah I've heard of AFR but haven't really messed with it yet. Im thinking of just getting PTF to hook me up. i spoke to them already and they recommend doing an e50 tune since its easier to manage when filling up. I never really planned on running that much e85 on a stock fuel system, but they said they can tune it accordingly and sacrifice some midrange if i want to stay OEM. only thing I'm worried about is a loss of MPG. I'm getting like 25-26 average, and this is the DD.

why don't you get a pro tune yourself?

[Brule]

You can get more than one map made.

Get one for a daily driver map and a map made for E50.

only take 2 minutes to swap maps

[924er]

Originally Posted by Brule

You can get more than one map made.

Get one for a daily driver map and a map made for E50.

only take 2 minutes to swap maps

Is that what you did ?

I'm thinking about that. I know they have a discount for e90 members for 200 bucks and for another map I hear it's 99 bucks

But first I'm contemplating whether to upgrade to a 7in FMIC. My 5in is whatevwr

[924er]

Originally Posted by stanlalee

I do randll.

ok I'm running the cobb e30 map mixed with 91 octane.
how does this one look??


http://www.datazap.me/u/moswissa/e30...&data=1-5-7-22

[924er]

seriously anyone???

[stanlalee]

odd cylinders (1,3 and 5) struggling a bit, even cylinders are fine. Are you running e30? How many gallons of e85 to petrol are you mixing? Only have 91 oct to mix with (ugh! west coast lol)? Can't speak much on fuel pressure but I've heard the rule of thumb for the LPFP (beyond fuel trims) is pressure should be greater than 50 at all times. Yours is doing that but gets close to 50 in a few spots.

[924er]

Originally Posted by stanlalee

odd cylinders (1,3 and 5) struggling a bit, even cylinders are fine. Are you running e30? How many gallons of e85 to petrol are you mixing? Only have 91 oct to mix with (ugh! west coast lol)? Can't speak much on fuel pressure but I've heard the rule of thumb for the LPFP (beyond fuel trims) is pressure should be greater than 50 at all times. Yours is doing that but gets close to 50 in a few spots.

Well I had about a little more than half a tank so I figured it had 7 gallons total. so I added 2.2 gallons of e85. According to COBB the e30 maps requires 30% e85 and the rest 91

Yeah I see the timing corrections, this morning I downgraded the map to stage 2 aggressive +.

The LPFP a did drop to around 50 at one point, now I'm too afraid to add more e85 because it will drop more.

The car pulled really fast tho it made my heart sink lol

[924er]

Originally Posted by stanlalee

odd cylinders (1,3 and 5) struggling a bit, even cylinders are fine. Are you running e30? How many gallons of e85 to petrol are you mixing? Only have 91 oct to mix with (ugh! west coast lol)? Can't speak much on fuel pressure but I've heard the rule of thumb for the LPFP (beyond fuel trims) is pressure should be greater than 50 at all times. Yours is doing that but gets close to 50 in a few spots.

ok here is a stage 2 aggressive with e85, i think I'm doing better with this map


http://www.datazap.me/u/moswissa/sta...14-15-20-21-22