Good fuel or lack of it

[SM105K]

Should have checked my source, it said e85 combustion temp was 700, I see now thats ignition temp not combustion temp

Always an excuse....always. I should have cited this, I didn't realize that.....

 

[High on Ethanol]

The problem is gas motors usually aren't monitored nor tuned by EGT temp. It is all about AFR's.

Diesels on the other hand.......

On a side note....i switched from self tuned to brewcity boost full e85 tune.
So far it feels great but it introduced a weird off idle lag spike(0-10mph feels like I'm at 1/4 throttle, then it obliterates tires and souls through the next 3 gears). I'm waiting on a revision now.

 

[SHO_Off420]

Always an excuse....always. I should have cited this, I didn't realize that.....

A real man knows how to admit when he's wrong. Unlike you just crying about shit 24/7 I ignored you and you still feel the need to try to harass me like a child your so pathetic dude

 

[Jordan_R]

It's weird that @SM105K is still on his original account and Ryan isn't? Damn wonder who got puppy kicked and who didn't.

 

[stripSHO]

I have been looking as well. However I did find this article. It was pretty interesting. E85 and 93 run in the same set up with EGT monitored. There were some good questions posed after the results, however I dont see a massively huge change.

https://e85vehicles.com/e85/index.php?/topic/4181-does-switching-to-e85-lower-egts/

"but I was really careful about keeping the lambda, ignition advance, and cam advance consistent between E85 vs. 93oct runs."

The whole point of switching to ethanol is to be able to run more timing on a knock-limited engine. Increased spark efficiency means less wasted energy which means lower EGT's. Keeping the timing equal in that test was bad. Not to mention that when you're not knock-limited ethanol generally requires less timing than gas so their e85 tune would be over-advanced.

 

[Ecoboost_xsport]

A real man knows how to admit when he's wrong. Unlike you just crying about shit 24/7 I ignored you and you still feel the need to try to harass me like a child your so pathetic dude

Dammit, and I was literally just typing how @SHO_Off420 must've taken his meds today, as he'd been uncharacteristically civil.

....there goes that theory...

 

[FiveLeeter918]

Here's a comparison on my personal car, 2 days apart but both 90 degrees ambient.

Car had an airaid intake on it, nothing else. E30 versus 91 comparing cat temp (as close as we can get to EGT on our cars). Values are in celcius,

91 is making 12 degrees, e84 is around 18 degrees. Old stuff but shows the data for comparing the fuel.

So at the top of 3rd with 91, we are sitting about 800C (1472*F), where as on e30 we are sitting at 750C (1382*F)

 

[SHO_Off420]

Dammit, and I was literally just typing how @SHO_Off420 must've taken his meds today, as he's been uncharacteristically civil.

....there goes that theory...

Oh yeah cause sm105k hasn't been a TOTAL ********* literally all morning and I make ONE comment and im the bad guy, your such a ****** ditz dude

 

[High on Ethanol]

Here's a comparison on my personal car, 2 days apart but both 90 degrees ambient.

Car had an airaid intake on it, nothing else. E30 versus 91 comparing cat temp (as close as we can get to EGT on our cars). Values are in celcius,

91 is making 12 degrees, e84 is around 18 degrees. Old stuff but shows the data for comparing the fuel.

So at the top of 3rd with 91, we are sitting about 800C (1472*F), where as on e30 we are sitting at 750C (1382*F)

So would this in theory lower iat2? Or would the shutters cause it due to lower coolant temps for some reason?

 

[FiveLeeter918]

Here is the same graph with IAT2 marked. You see MAYBE a 8* difference.

 

[High on Ethanol]

Here is the same graph with IAT2 marked. You see MAYBE a 8* difference.

So this is confirming what I'm seeing? Roughly 10degrees lower on average. Does this sound accurate?

 

[FiveLeeter918]

So this is confirming what I'm seeing? Roughly 10degrees lower on average. Does this sound accurate?

about a 5 degree average.

 

[GotGrip?]

Oh yeah cause sm105k hasn't been a TOTAL ********* literally all morning and I make ONE comment and im the bad guy, your such a ****** ditz dude

Quick side bar, bro you would probably get picked on less if you didn't always get so defensive. As soon as you do that and stop name calling/acting like a child/and listing "facts" that aren't facts people will more than likely leave you be. I know I've made a few stupid posts on here when I first got here and I tried to make the best of my **** ups, but you gotta chill dude. A lot of us on here have a little troll in us and if you can't handle that, you are on the wrong forum.

BACK ON TOPIC!

 

[High on Ethanol]

about a 5 degree average.

But thats on a very inefficient model.
You have the 1 row, 1 fin, 1inchby1inch intercooler behind your 11ft bash bar.

 

[SM105K]

A real man knows how to admit when he's wrong. Unlike you just crying about shit 24/7 I ignored you and you still feel the need to try to harass me like a child your so pathetic dude

Now you are back.....knew you couldnt resist Karen. I will just keep proving you wrong.

 

[SM105K]

"but I was really careful about keeping the lambda, ignition advance, and cam advance consistent between E85 vs. 93oct runs."

The whole point of switching to ethanol is to be able to run more timing on a knock-limited engine. Increased spark efficiency means less wasted energy which means lower EGT's. Keeping the timing equal in that test was bad. Not to mention that when you're not knock-limited ethanol generally requires less timing than gas so their e85 tune would be over-advanced.

That is why I said the questions posed were good. It is 800 degrees different? No. A couple hundred maybe?

 

[FiveLeeter918]

But thats on a very inefficient model.
You have the 1 row, 1 fin, 1inchby1inch intercooler behind your 11ft bash bar.

haha

 

[SM105K]

Here's a comparison on my personal car, 2 days apart but both 90 degrees ambient.

Car had an airaid intake on it, nothing else. E30 versus 91 comparing cat temp (as close as we can get to EGT on our cars). Values are in celcius,

91 is making 12 degrees, e84 is around 18 degrees. Old stuff but shows the data for comparing the fuel.

So at the top of 3rd with 91, we are sitting about 800C (1472*F), where as on e30 we are sitting at 750C (1382*F)

With that data set, was there a difference in average of 5 degrees you said in IAT's.

So roughly 90 degrees cooler with a 5 degrees drop in IAT's.

 

[Ecoboost_xsport]

Now you are back.....knew you couldnt resist Karen. I will just keep proving you wrong.

Lol, I quoted him and moved my response to the other thread. Didnt want to add to muddying up a decent discussion with his ********. Figured he can rent and rave over there and we can have our fun accordingly.

 

[SHO_Off420]

Quick side bar, bro you would probably get picked on less if you didn't always get so defensive. As soon as you do that and stop name calling/acting like a child/and listing "facts" that aren't facts people will more than likely leave you be. I know I've made a few stupid posts on here when I first got here and I tried to make the best of my **** ups, but you gotta chill dude. A lot of us on here have a little troll in us and if you can't handle that, you are on the wrong forum.

BACK ON TOPIC!

I have not listed any "facts" that weren't facts. I literally haven't said shit to sm105k for like 3 days and he's been harassing me the whole entire time even though he's ignored. I now made ONE comment to him and you wanna say that I'm the problem? Youre a ****** knuckle dragger dude