View Single Post
Old 08-09-2018, 06:13 AM   #48
steve99
Banned
 
Join Date: Dec 2013
Drives: FT86
Location: Australia
Posts: 7,996
Thanks: 1,035
Thanked 4,994 Times in 2,984 Posts
Mentioned: 598 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by alf View Post
@steve99 offered to build a 87 map for me. I will run tests here at home to see what driving style works and what does not.


If there is a certain window of RPM/throttle where it works, I will stick to it. Also, I will carry octane boosters.



yes, I must.

It limited what you can do with tune to accomodate such poor fuel as 87 on a 12.5:1 motor. Will need to look at knock under different conditions ond evaluate. The best option woild be to run 91 as a minuim.



I also suspect 87 will not only be lower octane but also lower quality in other terms like additives and deposits as well


I do have concerns with running poor fuels through complex modern fuel systems like this with direct injection



Its certianly not someting id recomend people do
steve99 is offline   Reply With Quote