Last time on a chassis dyno with my old heads cam and unlocked 4l80E I made 469rwhp on 91 octane and 28* timing.

Today with 20* timing I made a pull with 91 and laid down 511rwhp.

With E48 I turned timing up to 28* peak tq and 26* peak hp (what it liked, tried a bit more with no gains), made 546rwhp.

Drained the tank again and put E85 in. Did not gain anything on E85 compared to E48.

Dyno sheet coming.

Combo: 418ci 13-1 PRC 237 heads 254/260 .62x/.63x hyd Super Vic intake Dominator TB 1 3/4 stepped to 1 7/8 edelbrock headers (think they are holding me back) Dual electric cutouts Power glide with 5,200 rpm verte

 

Damn! Congratulations

 

Thats some real respectable power man. Congrats!

 

Red = 91
Blue = E48
Orange = E85

 

Nice! Cool to see the lighter mixture still making awesome power

 

great numbers!

id be willing to bet that with your relatively mild compression you arent really able to utilize the complete benefits of e85

 

Congrats man!!

 

I agree that NA, E48 is all I need.. Where I will use the E85 though is when I start spraying this motor. I do have a 2 stage kit on it.

 

Strong numbers man, well done!

 

Damn nice numbers there!