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BlckBox04

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Figured I'd get more of a response here than the tuning section

What is everyone's thought's, who are well rounded with the race gases compared to e85/e90

Reason I ask is we're seeing a lot of people who are seeing great results with the new blowers that are out and I'm questioning my tuners suggestion to go with c16 over E anything. I understand c16 has all the octane, but I've found very slim comparisons on the internet and I want real world experience on the subject. I get this feeling I'm missing out on power because of the fuel.
 

c6zhombre

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It seems the most powerful and fastest trapping setups run ethanol. I've not seen a true apples to apples comparison of a given setup running c16 and appropriate tuning......then swap over to pump e85 and retune accordingly. That would be an interesting dyno sheet overlay or time slip comparison.

My bet would be on the E85. I believe it has superior detonation suppression and a more complete, even burn across the top of the piston. Zero hot or cold spots.

Would also be interesting to see the ignite85 thrown in as a third option for comparison.
 

BlckBox04

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It seems the most powerful and fastest trapping setups run ethanol. I've not seen a true apples to apples comparison of a given setup running c16 and appropriate tuning......then swap over to pump e85 and retune accordingly. That would be an interesting dyno sheet overlay or time slip comparison.

My bet would be on the E85. I believe it has superior detonation suppression and a more complete, even burn across the top of the piston. Zero hot or cold spots.

Would also be interesting to see the ignite85 thrown in as a third option for comparison.

Well it's looking like I'll be the first with the comparison. Unless anyone else can chime in with a similar situation.
I'm going to retune over the winter but I'm going to use ignite e90, I don't have any pump e85 so whatever I need to get has to be ordered.
I'm also interested to see if there's any comparisons to e85 and ignite e90
 

c6zhombre

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Well it's looking like I'll be the first with the comparison. Unless anyone else can chime in with a similar situation.
I'm going to retune over the winter but I'm going to use ignite e90, I don't have any pump e85 so whatever I need to get has to be ordered.
I'm also interested to see if there's any comparisons to e85 and ignite e90

I think that's a good move with the ignite. But at the end of the day....the fuel is only as capable as the tuner is at maximizing the setup. You definitely want an experienced tuner that isn't leaving blower rpm/timing on the table because they don't understand how far ethanol's safe zone stretches.
 

BlckBox04

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I think that's a good move with the ignite. But at the end of the day....the fuel is only as capable as the tuner is at maximizing the setup. You definitely want an experienced tuner that isn't leaving blower rpm/timing on the table because they don't understand how far ethanol's safe zone stretches.

I know, that's going to be the next fun process, finding a good tuner
Right now I'm at 24degrees, 11.2 a/f so the current setup isn't conservative by any means
 

GodStang

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There were these comparisons many years ago when E85 first got big on the scene. The problem is searching on 3 letter words for posts near 8-10 years old is not the easiest. Then you also have to weed out what was true comparisons and what was people trying to pass as a true comparison.
 

BlckBox04

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There were these comparisons many years ago when E85 first got big on the scene. The problem is searching on 3 letter words for posts near 8-10 years old is not the easiest. Then you also have to weed out what was true comparisons and what was people trying to pass as a true comparison.

lol I know. I wanted to bring the conversation to anything that's currently happening. a lot has changed in the last 10 years.
 

c6zhombre

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I know, that's going to be the next fun process, finding a good tuner
Right now I'm at 24degrees, 11.2 a/f so the current setup isn't conservative by any means

That's a lot of timng! Didn't you trap like 104 1/8 and 134 1/4? Sounds like about 690 wheel which is well short of where you should be with that blower and blower rpm IIRC. Something is off
 

BlckBox04

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That's a lot of timng! Didn't you trap like 104 1/8 and 134 1/4? Sounds like about 690 wheel which is well short of where you should be with that blower and blower rpm IIRC. Something is off

yep, but I don't have the crusher inlet so I chalked it up to that. I also thought something was slightly off. it only dyno'd 640 on a mustang dyno. but the mph would have you think it's making more.
 

GodStang

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yep, but I don't have the crusher inlet so I chalked it up to that. I also thought something was slightly off. it only dyno'd 640 on a mustang dyno. but the mph would have you think it's making more.

There can be a million reasons why your numbers aren't what you think (don't know your setup). Don't go chasing other people using other dynos. That being said depending on the heat your setup is making, the more heat you have the better benefits you will see from E85 over C16. If you are not making much heat at all running low boost than the big gains might not be there.
 

BlckBox04

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There can be a million reasons why your numbers aren't what you think (don't know your setup). Don't go chasing other people using other dynos. That being said depending on the heat your setup is making, the more heat you have the better benefits you will see from E85 over C16. If you are not making much heat at all running low boost than the big gains might not be there.

Oh I don't compare apples to oranges, and dyno numbers don't mean anything to me. My track passes tell me where the car is at and performing. I'm running about 24psi so it's definitely making some heat. Not excessive like my kb was but it's working.
 

c6zhombre

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yep, but I don't have the crusher inlet so I chalked it up to that. I also thought something was slightly off. it only dyno'd 640 on a mustang dyno. but the mph would have you think it's making more.

Ok, non-crusher. Yours is the first gen4 I've seen configured like that...so ya, that would have to be a factor at those blower rpms for sure. But even with that, I thnk it's got more to trap. Maybe after the switch to the ignite, retune.....you'll get closer to 107 1/8 and 140 1/4
 

BlckBox04

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Ok, non-crusher. Yours is the first gen4 I've seen configured like that...so ya, that would have to be a factor at those blower rpms for sure. But even with that, I thnk it's got more to trap. Maybe after the switch to the ignite, retune.....you'll get closer to 107 1/8 and 140 1/4

yea I'm hoping so. That'll put me in the 9's for sure and I'll be happy with that. I have to get the 60' down more too. 1.4x and it'll be where I want it. Then comes the spray lol.
 

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