That's on a gas scale. You don't have to change your wideband to lambda. I find it easier that way.

 

On a gas scale, AFR should be something like 9.5 for e85...

 

No the afr gauge will read the same unless you recalibrate it. You might have a true AFR of 8.5 on E85 but gauge will be around 12 if calibrated for gas.

 

I bet it will take 25-30psi with the factory bottom end.

 

And they say tuning with lambda is more complicated

 

I've ran E85, and E85/gas mix, and meth E85, gas mix etc and always target 11.5-12. Why make it confusing. The more E85 or meth you run the lower the gas scale AFR can be and still make power but Im always out of everything so Im 12-12.5:1 lol

 

Eh, point taken. AFR of 11.5gas is 0.78 lambda which is 7.6e85, but since most widebands display the afr based on lambda assuming gasoline (stoich 14.67), it wont change much.

Question though, since we are on the subject. Do you ever run your setup at moderate boost levels without the meth turned on? Lets say, below 10psi just cruising around.

 

i wonder how much boost my 5.3 can take once i am done laying with juice migh have to shoot u some pms see what we can do

 

give Rob time and he will be there!

 

I think when I get into the 800lb tq area the rods will become an issue.