[KILLA BEE]

Originally Posted by DorkMissile

What Im staying is most people see 55FtLbs or so and 40HP on when going to flex tune from premium pump gas

Right, I thought I would atleast get a 25-30 hp increase even being NA, all E isnt created equal. I should have brought my own from a station thats reputable. Im sure if I was boosted id get more for sure

[wnta1ss]

Originally Posted by DorkMissile

What Im staying is most people see 55FtLbs or so and 40HP on when going to flex tune from premium pump gas

Have to disagree with you here, remember that this car was tested with bolt-ons only, not a forced induction car. Seems to me that LT1 bolt-on reports are typically more like 20~25 hp gained on E85 over using 93 gas.

[KILLA BEE]

[QUOTE=wnta1ss;10777777]Have to disagree with you here, remember that this car was tested with bolt-ons only, not a forced induction car. Seems to me that LT1 bolt-on reports are typically more like 20~25 hp gained on E85 over pump gas.

Yeessiirrrr

[KILLA BEE]

Originally Posted by Eric10905

thanks, i will check it out!

here it is bro

[DorkMissile]

Originally Posted by wnta1ss

Have to disagree with you here, remember that this car was tested with bolt-ons only, not a forced induction car. Seems to me that LT1 bolt-on reports are typically more like 20~25 hp gained on E85 over using 93 gas.

I have been helping my tuner on his dyno days during the Covid crisis - have seen him pull 50FtLbs out of a dozen or so N/A LT1 cars the last few weeks from an optimized pump gas to optimized E85 tune.

When asking him about the very subject because it is pretty consistent regardless if the engine had mods or not, his theory was that it was based on displacement. If the intake or cams were changed, it may gain a little more or less, but was within a couple of percent.

There is no such thing as good or bad E85, it is just the level of ethanol content. And unless it is boosted, E60 will get you the same power as E85

What my tuner does is has the cars show up with 1/8 tank of premium - he dials in the gas map, they pour in 10 gallons of measured E85 and it lands right on E70. He runs the car under load until the flex sensor maxes out on the E content, and then tunes E85.

This time of year he does 12-14 cars a day, three days a week, and 3/4 of them are on E85

[avalonandl]

Originally Posted by DorkMissile

What Im staying is most people see 55FtLbs or so and 40HP on when going to flex tune from premium pump gas

Your saying by having a E85 tune installed I can expect 40 hp on a stock SS.

[wnta1ss]

Originally Posted by DorkMissile

I have been helping my tuner on his dyno days during the Covid crisis - have seen him pull 50FtLbs out of a dozen or so N/A LT1 cars the last few weeks from an optimized pump gas to optimized E85 tune.

When asking him about the very subject because it is pretty consistent regardless if the engine had mods or not, his theory was that it was based on displacement. If the intake or cams were changed, it may gain a little more or less, but was within a couple of percent.

There is no such thing as good or bad E85, it is just the level of ethanol content. And unless it is boosted, E60 will get you the same power as E85

What my tuner does is has the cars show up with 1/8 tank of premium - he dials in the gas map, they pour in 10 gallons of measured E85 and it lands right on E70. He runs the car under load until the flex sensor maxes out on the E content, and then tunes E85.

This time of year he does 12-14 cars a day, three days a week, and 3/4 of them are on E85

That is much different from the many results that I have seen posted for other bolt-on cars. I remain skeptical at 50+ lb/ft gain on a bolt-on LT1 by going E85 over 93 gas, no personal offense intended. Question, I had said 93 gas, is that what you guys have for premium, or do you have 91 labeled as 'premium' in your area?

[KingLT1]

Sounds like marketing BS to promote more business. "oh hey my tuner can get you +40whp and 50wtq on his E tune".

If the 93 pump tune is truly optimized, the E tune should be around 25whp tops. Brett Stewart has documented this many times and he is pushing this platform as hard if not harder then anybody else in the country.

[s346k]

Originally Posted by DorkMissile

This time of year he does 12-14 cars a day, three days a week, and 3/4 of them are on E85

he tunes 12-14 cars a day? i feel bad for those customers.

[DorkMissile]

Originally Posted by wnta1ss

That is much different from the many results that I have seen posted for other bolt-on cars. I remain skeptical at 50+ lb/ft gain on a bolt-on LT1 by going E85 over 93 gas, no personal offense intended. Question, I had said 93 gas, is that what you guys have for premium, or do you have 91 labeled as 'premium' in your area?

In MN "premium" is a hodgepodge of results all based on the station. Some places are 91E10. Some are 92 Non-oxy, some are 93 Non-Oxy. According to my tuner - the 91E10 is the "hardest to detonate" fuel of the three, so it if it a higher boost / higher compression build he will tell you to run it over the non-oxy options.

Mind you the guy has flex tuned thousands of cars - Minnesota was the first state to really have E85 readily available (you have been able to buy it at the pump since the early 2000s here) and he jumped on that bandwagon early. There are not too many tuners with a dozen plus years experience, combined with the fact that he has work year round he has seen a lot of things. Seriously - he has had trailers show up from out of state with cars in them with no appointment because he had a phone conversation with the guy a week prior.

As far as being able to tune a dozen cars a day - he does the homework on each tune before he shows up at the dyno and has everything staged. Some are just touch ups (like someone repulleyed their blower) and some are complete tunes, but he will drive the first car to the dyno himself, have his "runner" follow him there with the second car, and once the first car is done, the runner is going back to the shop to get the third. Runs them thru one after another non-stop as he has to rent the dyno by the day.

[KILLA BEE]

Originally Posted by s346k

he tunes 12-14 cars a day? i feel bad for those customers.

Thanks yaw, I knew 18hp was a LITTLE LOW from pump gas. But Ive neverrrrr heard of a 40 -50 increase gain on a stock car. Im not a professional at all, but isnt it a difference in power if you have full E85 tune vs E50 or no? And I know its a such
thing as good or bad gas, that can pertain to E85 or am I wrong??

[KingLT1]

Originally Posted by KILLA BEE

Thanks yaw, I knew 18hp was a LITTLE LOW from pump gas. But Ive neverrrrr heard of a 40 -50 increase gain on a stock car. Im not a professional at all, but isnt it a difference in power if you have full E85 tune vs E50 or no? And I know its a such
thing as good or bad gas, that can pertain to E85 or am I wrong??

More Ethanol Content simply means more octane. Pure E85 is around 109 octane. E60 is around 103 octane. At stock compression you can pretty much reach MBT on E60 and likely really close on E50.

[avalonandl]

Originally Posted by wnta1ss

Have to disagree with you here, remember that this car was tested with bolt-ons only, not a forced induction car. Seems to me that LT1 bolt-on reports are typically more like 20~25 hp gained on E85 over using 93 gas.

Thats what I was expecting. 20 hp max on a OE SS.

I want a tune but have to wait till warranty is up and I put a Mamo TB on it....

[Eric10905]

Originally Posted by KILLA BEE

here it is bro

Thanks, i did find it. i'm going to do it as well. As noted, it's TX and it's stupid hot a lot here. And I think it's cheaper than buying a sheet of the material myself and cutting it to fit.