Ok so I need a little help on deciding what I should do about some settings, should I mess with the wot fuel, wot sparks, upshifts and down shifts? I only have cai, and exhaust. I have a diablo trinity if that matters at all, I'm just wanting some better performance I noticed a pretty good increase just with the 91 tune. Ran a quarter mile like twice and was around 18 haa!! But keep in mind it's a megacab and I have 37" tires I'm not a racer so quarter mile isn't that important that's just to give y'all an idea. Any suggestions?

 

I would not mess with wot spark.

Only add wot fuel if you are getting knock or if you have a wideband to read afr, have you datalogged st and lt knock?

Adjust shift point to make it better for how you drive it. I don't think any of my shift points are at the stock setting anymore.

 

no i havent data logged anything how will i know if i need to adjust the wot fuel

 

My suggestion is to find a CMR tuner off Diablo's site or use their forums for these questions because no DR owner I know will be able to answer accurately for you. I also have a Diablo Trinity but mine is custom tuned.

 

+1 on the CMR tuner, you will get more out of your tune with a CMR custom tune.

But I would datalog st and lt knock and see if you are getting any. If you are then you can add some fuel to try to get rid of it. If you have no knock retarding, then leave the wot fuel alone.

 

Yep... Do not touch the spark period, and dont mess with the fuel trims until after you have logged for KR and/or have a wideband to see how you are running, add to much fuel and you'll hurt performance, dont have enough fuel and you'll hurt performance and in both cases can hurt the engine. Dont go in blind.... For the shift settings, look up at the diablo sticky and you should be able to find some good starting points there. Dont go extreme with them either or you'll hate the ride (i.e. setting the 1-2 10% up shift at 5000rpms) and make sure the upshifts and down (if you have them) make sense.