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Hey all looking for some direction/help.
Ive got a 2014 sierra l86 with a whipple just installed on it. The issue im having is that the tune from whipple is for a stock truck with the kit. My truck however has some mods (that whipple was unwilling to tune for). Is there a repository of tunes or someone here that could point me to a tune. I have tuners but unfortuantly no GM tuners or dynos are close.
Thanks in advance for any help!
If you're going to tune it yourself and since it's a 2.9l newer blower go ahead and install a sciap, lt4 map and wire the temp sensor into the MAF - whipple kit should have already had this part and then sign up for user defined access and then contact Will_974 on here and get the throttle rate/area and pedal progression tables at the minimum added in for yours. You're going to have to edit those tables with the bigger blower, especially if you're keeping any sort of variable cam movement which I recommend. Even with the cam at 0, you really need to alter those tables either way. Those tables require you to play a balancing act, but once right you'll be happy.
I second the SCIAP sensor install, and 3bar main map sensor minimum.
From the whipple tunes i have seen, they dont change out the map sensor from a 1bar, which is ridiculous...
With that, I can adjust the internals of your tune for SCIAP and a more controllable throttle rate table
Support will add pedal progression table for you if you ask, but I have not yet given them the Throttle rate table.
With all that being said, you will want to tune the VVE tables along with MAF.
to do this, you'll want to have a wide band sensor installed.
With the SCIAP sensor, it is more important than usual to have both the airflow models aligning up.
With everyone of these I've done so far, the throttle rate and pedal progression tables both required fine editing to specific sections. It would be best if he could get User Defined and tune them himself to save both of you some headaches. That's if he's going to tune it himself. I often have to modify the rate table from 25ish up and then really edit them from 40 up usually taking 30% or slightly more out from 40 up on top of making changes to the pedal progression. There are a lot of influences with things in that pedal table by itself both with how aggressive the throttle reacts and with how well it controls itself including engine braking and throttle closure.
I don't think general tables persay would fix everything without editing them to work with everything else in this case, especially since there's also other mods involved.