Quote:
Originally Posted by Caforddude
Ok got my canned tunes loaded back in and all I can say is..."GLAD TO BE TUNED AGAIN" It's a different truck.
1 question. I always ran the 87 towing tune before getting my custom tunes.
Can I run the 91 performance tune WITHOUT running 91 octane gas? Would it be any improved performance?
|
No,
The 87 has specific air fuel maps for that octane as does the 91. Eventhough they are generic tunes. I am sure through timing changes it would be possible but with only Bill to change the AF mapping. I wouldn't recommend it.
Wait to see what Jack says.
Lars