[19 2SS]

Originally Posted by Joshinator99

If you have LT4 fueling and the base Whipple pulley, you could add an E85 sensor too. A Big Gulp, 95/103 TB, and E40 in the tank will net you over 600 no problem.

Not really interested in flex fuel, so guess the big gulp and TB are my only options left to do

[KingLT1]

Not sure why. Flex fuel is probably the best mod you can do on a 6th gen SS or ZL1. These engines crave higher octane. If you don't want to run Flex then get a Meth injection kit.

Big difference in power and performance on these cars when you can go from 12 degrees of timing up to 18-20.

[Joshinator99]

Originally Posted by KingLT1

Not sure why. Flex fuel is probably the best mod you can do on a 6th gen SS or ZL1. These engines crave higher octane. If you don't want to run Flex then get a Meth injection kit.

Big difference in power and performance on these cars when you can go from 12 degrees of timing up to 18-20.

Plus, on a stock SS short block, the odds of surviving under boost long term are much higher if you can use E or meth to pull some heat out of the chamber.

[KingLT1]

Originally Posted by Joshinator99

Plus, on a stock SS short block, the odds of surviving under boost long term are much higher if you can use E or meth to pull some heat out of the chamber.

[19 2SS]

Originally Posted by KingLT1

Not sure why. Flex fuel is probably the best mod you can do on a 6th gen SS or ZL1. These engines crave higher octane. If you don't want to run Flex then get a Meth injection kit.

Big difference in power and performance on these cars when you can go from 12 degrees of timing up to 18-20.

Mainly because its a 20 minute drive to get e85 and I see a lot of people having problems with starting their car in the cold, and i'm in PA so its been 20 degrees for the last week and seems like it's gonna stay like that for a while. plus not being able to run full e85 is kinda annoying, seems like a hassle

and I drive the car really hard so with e85 i'm gonna be filling it up like every day..

[KingLT1]

Originally Posted by 19 2SS

Mainly because its a 20 minute drive to get e85 and I see a lot of people having problems with starting their car in the cold, and i'm in PA so its been 20 degrees for the last week and seems like it's gonna stay like that for a while. plus not being able to run full e85 is kinda annoying, seems like a hassle

and I drive the car really hard so with e85 i'm gonna be filling it up like every day..

It's not much of a hassle. Winter pump E is normally around 65% in most areas around the snow belt. You can mix it 50/50 and come in around E45-50. The hard starting isn't a issue with correct tuning and lowering the E percentage. Aside from that you don't have to run E in the winter. You can run 93 until it warms up...that is beauty of a flex sensor. It can be mixed for any percentage, straight E, or pump 93 and the ECU will adjust the tune for it. It's not like you are going to be doing a lot of WOT pulls when it's 20 out anyway. Matter of fact I wouldn't run it hard unless it's above 45 degrees. You are likely making 2-3psi more boost when it's below 40 compared to 75+ degrees out. Mine makes a peak of 12psi when it's 45-50 degrees outside and a peak of 10psi when it's above 75. Fuel demands change substantially with this swing in boost and you want to make sure you have enough fuel system for it. I have to lower the E content from 60% down to 45% with that change in temp. Also, you can get away with less octane in the cooler months as well.

[19 2SS]

Originally Posted by KingLT1

It's not much of a hassle. Winter pump E is normally around 65% in most areas around the snow belt. You can mix it 50/50 and come in around E45-50. The hard starting isn't a issue with correct tuning and lowering the E percentage. Aside from that you don't have to run E in the winter. You can run 93 until it warms up...that is beauty of a flex sensor. It can be mixed for any percentage, straight E, or pump 93 and the ECU will adjust the tune for it. It's not like you are going to be doing a lot of WOT pulls when it's 20 out anyway. Matter of fact I wouldn't run it hard unless it's above 45 degrees. You are likely making 2-3psi more boost when it's below 40 compared to 75+ degrees out. Mine makes a peak of 12psi when it's 45-50 degrees outside and a peak of 10psi when it's above 70. Fuel demands change substantially with this swing in boost and you want to make sure you have enough fuel system for it. I have to lower the E content from 60% down to 45% with that change in temp.

Hmm maybe I'd consider it just to run it when I feel like it. As far as mixing it, is there anything special you have to do for it to blend or you just throw it right in and don't worry about it? And what % E would I be able to run?

[KingLT1]

Originally Posted by 19 2SS

Hmm maybe I'd consider it just to run it when I feel like it. As far as mixing it, is there anything special you have to do for it to blend or you just throw it right in and don't worry about it? And what % E would I be able to run?

Nope...I just pull up to a pump that has both 93 and E85, Put 5 gallons of E in then 5 gallons of 93 in. I have to run my card twice to do it but that is it. In the summer when the E content goes up then you might have to mix it 60/40 pump/E.

I would start with E50 in the summer, log your fuel pressures and injector ms. If rail and low side pressures remain constant without dropping and your injectors stay under 6.0ms during a WOT pull then you are fine. If pressures are dropping substantially and Injectors are going above 6.2ms sustained then lower the E content 5% and do another log.

Keep in mind 90% of the gains of E are had at 60%. No real need to go above that other then for convenience of not needing to mix or really high horsepower build. Honestly anything in the E40-60 range will raise the octane substantially and provide good gains and cooling of the cylinders.

My advice, Get a pro clip holder for android phone, a bluetooth obd 2 dongle, and download the Torque Pro app. You can monitor E content and log these parameters right from a android device.

[19 2SS]

Originally Posted by KingLT1

Nope...I just pull up to a pump that has both 93 and E85, Put 5 gallons of E in then 5 gallons of 93 in. I have to run my card twice to do it but that is it. In the summer when the E content goes up then you might have to mix it 60/40 pump/E.

I would start with E50 in the summer, log your fuel pressures and injector ms. If rail and low side pressures remain constant without dropping and your injectors stay under 6.0ms during a WOT pull then you are fine. If pressures are dropping substantially and Injectors are going above 6.2ms sustained then lower the E content 5% and do another log.

Keep in mind 90% of the gains of E are had at 60%. No real need to go above that other then for convenience of not needing to mix or really high horsepower build. Honestly anything in the E40-60 range will raise the octane substantially and provide good gains and cooling of the cylinders.

My advice, Get a pro clip holder for android phone, a bluetooth obd 2 dongle, and download the Torque Pro app. You can monitor E content and log these parameters right from a android device.

Thanks for the info as usual! I'll consider adding flex fuel whenever I end up doing my next round of work! Is there any other pulley size thats safe other than the base whipple pulley? or should I avoid that