:::RHMT::: Real Home Made Turbo

General Category => Engine Management => Topic started by: jdmhatchracer94 on May 09, 2012, 02:24:36 AM

Title: map switch for crome?
Post by: jdmhatchracer94 on May 09, 2012, 02:24:36 AM

okay my bin is setup fo a 2.5 bar sensor. I want to switch to my 4bar. I tried just chaning it and evrything went lean question is. Do I just adjust the fuel settings or do I have to change ignition also?



p.s. is it ok to run the map senor from a vac block? only if I have to

Title: Re: map switch for crome?
Post by: PhilStubbs on May 09, 2012, 08:58:19 AM

I don't like to make any bin changes without tuning. Except rev limits, 2 step, etc. maybe I'm to cautious but I tune other people's cars and I have yet to blow one up. I don't want to risk my reputation on something so silly.

Title: Re: map switch for crome?
Post by: Dirty_Mech_Style on May 09, 2012, 08:00:14 PM

if crome works like turboedit does, it requires you to pretty much start from scratch when you swap maps.  When it applies the 4 bar map to your current bin, it changes your map cells, but doesn't modify ignition and fuel points if that makes sense.  i don't have a lot of experience with vac blocks, i have my map sensor ran with a t to the boost gauge. 

answer is yes fuel and timing need retuned.