I was thinking of running E85 since it's pretty widely available by me, I'm looking to see what set ups have a toggle for one tune on 93 and then another on E85. From what I've read Hondata has something that allows you to toggle between tunes on the fly, and I'd like more information.

Also, if I just used a fuel cell with E85 could I run a Y in the fuel lines with two separate fuel filters before the Y?

 

S300 can switch between 2 totally different maps, so that should be possible.

 

Yeah I basically want to be able to hit a switch that will turn on the E85 fuel pump and load the E85 tune right on the spot.

 

s300 is pretty simple just upload map, dont know about toggle though

 

QUOTE
The S300 can control boost by using a duty cycle controlled output on OBD1 ECU pin A11 with a boost control solenoid to regulate air to the wastegate.
Boost may be fixed, or varied by gear, with two settings which allow for wet/dry, pump/race gas or street tire/slicks settings to be selected with an external switch
/QUOTE

You can wire up a switch to trigger 1 different map.

 

Nice, any write ups?

 

All you do is wire a switch to one of the outputs on the ecu and set it up for secondary map on your tuning software

Really easy

 

id rather upload, what if the switch went bad or the connection for the switch....you wouldnt know.

 

the way i planned on doing it was though the brake switch pin.

 

I agree.

 

make sure you have a wideband. If you haven't bought tuning software yet, just so you know Neptune RTP has a feature where you can have 3 completely different tunes already and yes can switch on the go.
Personally I would pick a fuel and stick with it.

 

Well my build isn't done yet but it's getting there almost done, and I just want to have an idea of what to do