FAST XFI cranking fuel

[CS99]

How much cranking fuel do I need with 83lb injectors. I just want a rough idea of what my numbers should be at what engine temp. Should I have more as the temp gets colder ? This is for an 86GN

 

[northerngn]

How much cranking fuel do I need with 83lb injectors. I just want a rough idea of what my numbers should be at what engine temp. Should I have more as the temp gets colder ? This is for an 86GN

This is mine... i have 83's but every build is different should be close though...

-Dan

 

[norbs]

You probably have too much overall, yes more cold, average rule is 300% idle PW for a hot cranking fuel, you probably have 1.8ms idle x 3=5.4 ms hot, for gas, e85 might need a little bit more.

 

[CS99]

Thank you

 

[northerngn]

You probably have too much overall, yes more cold, average rule is 300% idle PW for a hot cranking fuel, you probably have 1.8ms idle x 3=5.4 ms hot, for gas, e85 might need a little bit more.

This is a e-85 car and starts right away and stays running after first crank and ANY temperature, when I do run gas i just highlight the whole graph and lower it a little....I too agree that it looks and prob is on the high side ,but it works,so Im not gonna mess with it

 

[kidglok]

the starting iac position also plays a role in this

 

[larry33kc]

I was watching this thread so I can learn more about my system (BS3). What would an IAC table look like for 83#'s

 

[norbs]

This is a e-85 car and starts right away and stays running after first crank and ANY temperature, when I do run gas i just highlight the whole graph and lower it a little....I too agree that it looks and prob is on the high side ,but it works,so Im not gonna mess with it

I agree if it works for you DONT MESS WITH IT..

 

[norbs]

I was watching this thread so I can learn more about my system (BS3). What would an IAC table look like for 83#'s

Doesn;t matter really by injector size, it all depends what the engine likes to run at cold. Usually higher cold and less warm.