i have crome pro and was wondering how i do a race gas tune with this software?

 

Couple ways.

You can use one of those dual map things. You can find them at moates.net/xenocron.com . Basically it allows the use of two chips, flip a switch to flip to the 2nd chip which will hold your second tune.

Oooorrr if you're planning on running considerably more amounts of boost you can just use the same map. Tune pump gas under 20psi, tune with race gas over 20psi, that kind of thing. Not the best way to do it honestly, but it works.

 

thanks man.

 

yep. thats what i do (2nd).

i used 18psi below for low pump, and 18 and up for race

so in the ign table, you will have higher ignition timing in 20deg compared with 16deg. something like that....

 

The above mentioned method makes me cringe.

Honestly, if you want to run two different gases, get the Moates 2-Timer (which will work with Crome), or invest in something like Neptune RTP, or get tuned by a Neptune dealer.

Neptune, S300, and eCtune all feature dual-map capabilities that don't involve bass-ackwards ghetto timing maps for two different fuels.

- Derek

 

why has nobody stated the obvious!

If your going to be changing fuels, obviously this isn't gonna be an on the fly change, so why not have two different chips.. label them race & street & be done.

The 2timer is much more convenient, but just wanted to state the obvious.
((oh & the timing thing that was discussed above.. yea.. don't do that!!))

 

It really isn't that big of a deal, as long as you take necessary precautions. Switch to pump gas, put the boost cut at 20psi or whatever that way if you overboost you will not go into your race gas tune and detonate like crazy. Flip to race gas bump the boost cut up or take it off entirely, whatever.

It's a good method for when you have E85 map on your secondary tables and want the option to run regular pump and race gas too.